Service Manual -Acer Extensa 510sg

8/8/2019 Service Manual -Acer Extensa 510sg

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Maintenance Manual

ExtensaTM

51x SeriesNotebook Computers9811755-0001

April 1996


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Preface

In t roduct ionThis m an u al provides ins tal lat ion, operat ion an d ser vicing da ta for th eExtensa 51x Series Notebook Compu ters.

In tended AudienceTh is m an u al is p rimari ly in tend ed for u se by qu alified s ervice techn ician sbu t conta ins informa t ion u sefu l to non- techn ica l users .

Conten t sThis m an ua l conta ins s ix sect ions an d m u lt ip le re ference app endicesincluding:

Section 1: General Descript ion Introdu ces the m ain fea tu res of then otebook fam ily; provides a list of ph ysical an d electrical spec ifications.

Sect ion 2 : Ins ta l lat ion Descr ibes h ow to un pack, ins ta ll opt ions an dcable up th e notebook compu ter in a desk top environmen t .

Sect ion 3 : Opera t ing Ins t ruc t ions Describes the n otebook operat ing controls and indicators and modes of operat ion.

Sec tion 4 : The ory of Operat ion Describes deta iled t h eory of operat ion for Extensa Series notebooks.

Sect ion 5 : Troublesh oot ing Provides trou bleshootin g procedu res forthe Extens a 5 1x Ser ies n otebooks .

Sect ion 6 : F ie ld Service Provides correct ive m ainten an ceprocedures for th e n otebook compu ter.

Appen dix A: Se lf Tes t Error Mes sage s Appendix B: PC-Doctor Reference Data

Preface vii


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Oth er Manuals About th e Sys te mThe following d ocum ents provide a ddit iona l inform at ion related to t heExtens a 51x Ser ies :

Exten sa Se ries Note book Com pute r Use rs Referenc e Manualconta in s referen ce inform ation regarding th e Extensa Series Notebook Compu ter s oftware includ in g the TI cu stom u ti lit ies .

Windows 95 Help (online)

PC-Doc tor Help and Techn ical Referenc e (online)

Orde rin g Part s an d Su ppliesTo order a copy of an y TI publicat ion or to order option ki ts , sp are par ts orsu pplies for your system , conta ct your TI Reseller or:

Telephone Toll-free: 1-800-TI TEXAS

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1General Descript ion

1 .1 Introduct ionThis manual contains field and factory level servicing information for theTexas Ins t ru men ts Extens a 51x Series of Notebook Computers (Figure1-1). This section provides a general overview and specifications for theExtensa 51x Series Notebook Computers.

1 .2 Produ c t Mode lsThe two initial offerings in the 51x Series are differentiated by the softwareins tal led on t he s ystem a t th e factory. The Model 510 conta ins Win dows 95an d th e Model 515 includ es Win dows 95 a n d a variety of ap plicat ions a ssu mm arized in Tab le 1-1. Each m odel ma y conta in ei ther th e 540 m ill ionbyte ha rd d isk drive (-00xx part nu mb er su ffix) or 810 m ill ion byte h ar ddrive (-01xx part number suffix).

F igure1 -1 Extensa 51x Series Note book Compute r

General Description 1 -1


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Table 1 -1 Extensa 5 1x Ser ies Note book Compute rs

Mo de l 5 1 0 Mo de l 5 1 5

U.S. Vers ionWind ows 95 or Wind owsfor Work grou ps

Windows 95 Plus MicrosoftWorks, Quicken SE, LotusOrganizer, and MicrosoftEn te r t a inm en t Pack

Non U.S. VersionsWind ows 95

1 .3 International Product VersionsTh e Extens a 5 1x Series Notebooks a re availab le in one of 15 d omestic an dint ern ational configura t ions as l is ted in Tab le 1-2.

Table 1 -2 Notebook Dom es tic / Inte rnational Configurat ion s

Co nfigu rat io n P/ N S uffix Co nfigu rat io n P/ N S uffix

Dom es t ic -0 00 1 Swed is h -0 0 1 0

UK -0 00 2 Swis s / Fren ch -0 0 1 1

Ger m a n -0 0 0 3 Da n is h -0 01 2

Fren ch -0 00 4 Norwegia n -0 01 3

Sp a n is h -0 00 5 Fin is h -0 01 4

Swis s / Ger m a n -0 00 6 Belgiu m -0 0 1 5

Ita lia n -0 00 7 Au s tr ia n -0 0 1 6

Por tu gu es e -0 00 8 As ia Pa cific -0 01 7

Wes ter n Eu rop ea n -0 00 9 La tin Am er ica n -0 0 1 8

Ch in es e -0 0 1 9

1 .4 Product Overview

All mem bers of the E xtensa 51x Series are h igh per form an ce notebookspowered by the 10 0 MHz Pentium processor a nd Windows 95 Opera t ingSystem software . As a s tan dard fea tu re , a l l mem bers of the Extens a 5 1xfam ily also conta in th e followin g feat u res :

8 MB of EDO RAM mem ory (u ser -expan da ble to 40 MB)

128 bytes of ba t tery-backed u p CMOS RAM

1 MB of video RAM

1 -2 Genera l Descript ion


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54 0 or 8 10 Million Byte Hard Drive (u ser replacea ble)

Su pp ort for two PC MCIA Type I or II options or on e Type III PCMCIAoption ca rd

Ergonomic keyboard with pa lm r est (2.7 m m travel); built- in touch padpointin g device

Most sta n dar d extern al device interfaces inclu ding serial , para llel,PS/ 2 , an d externa l VGA .

3.5-inch, 1.44 MB Floppy Drive

10.4 inch Du al Scan Color LCD

AC Ada pter with au tosen sin g (10 0 VAC to 2 40 VAC, 50 to 60 Hz); 34Watts of DC outpu t power

10 .8 Volt, 240 0 m AH ca pa city, Nickel-Meta l Hydride (NiMH); Sta n da rdDu racell DR35 battery pa ck

Bui lt - in mona u ra l speaker with ESS1688 soun d so lu t ion

Th ree a u dio jacks : Lin e-In, Line-Out, an d Microphon e-In .



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1 . 4 . 1 External PortsAs s h own in Figure 1 -3, the n otebook compu ter conta ins th e followin gexternal ports:

9-Pin Serial Port for a t tach ing an y RS-232 type s erial device to th eNotebook

25-Pin Parallel Port for attaching bidirectional parallel devices

Au dio Line-In, Line-Ou t, a n d Microph one-In

15-Pin Externa l VGA Monitor Port for a t tach ing an externa l monitor

6-Pin PS/ 2 Port to at ta ch a n externa l Keyboard or Mous e

AC Adap ter Conn ector for at t ach ing the AC Adap ter to th e n otebook

AC AdapterConnector

SerialPort

External PS/2Port (Mouse/KeyboardPort)

External VGAPort

ParallelPort

Audio Line

Output

ExternalMicrophoneInput

Audio LineInput

Figure 1-3 Not ebook Exte rnal Ports



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"In verted T" Cu rs or Con trol Key layout

Th e n otebook k eyboard is availab le in th e followin g vers ion s:

U.S. English Keyboard, TI Part No. 9811398-0001- This version (alsokn own as th e domestic version ) is genera l ly used in t he Un ited Sta tesa n d C a n a d a .

Int ern ational versions include: United Kingdom Keyboard , TI Part No. 9811 398 -0002

Germ an Keyboard, TI Part No. 981 139 8 -0003

Fren ch Keyboard , TI Part No. 981139 8 -000 4

Spa n ish Keyboard, TI Part No. 981 139 8 -0005

Swiss Keyboard , TI Part No. 9811 398 -0006

Ital ian Keyboard , TI Part No. 98 1139 8 -00 07

Portugu ese Keyboard, TI Part No. 981139 8 -000 9

Swedish Keyboar d, TI Part No. 9811 398 -0010

Denm ar k Keyboard , TI Part No. 9811 398 -00 12

Norwegian Keyboard; TI Part No. 9811398 -0013

Belgiu m Keyboard , TI Part No. 9811 398 -0014

Fin ish Keyboard, TI Part No. 98113 98 -00 15

nNote : The Extens a S eries Notebook Compu ter Us er s R eference Man ua l con-tains descriptions of keyboard special function keys. A six-pin Mini-DIN con-n ector can a t tach to eith er an extern al PS/ 2 keyboard (or 101 Keyboard viaan ada pter), PS/ 2 Mouse, or t h e optiona l PS/ 2 Nu meric Keypad.



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1 . 4 . 3 . 1 Co n t ro ls a n d In d ic a t o rsAs sh own in Figu re 1-6, Extensa Series Notebook Compu ters conta in a setof th ree bu ttons (switch es) an d f ive LED displays jus t a bove th e keyboardincluding:

Power, Setup, and Standby/ Suspend Buttons (Switches)

Slee p Mode Ind icator. This LED lights when th e n otebook is in SleepMode.

Hard Drive Activity In dicator. Th is LED lights when th e n otebook isaccess in g the ha rd drive (read or write).

Num Lock in dicator. Th is LED lights when you pres s th e Nu mLk key totoggle on th e nu mer ic keypad lock fu nction. Wh en th e LED is On , theembedded numeric keyboard keys generate AT keypad cha rac t er s an dfun ct ions when pressed in conju nct ion with the Shift key. When theindicator is Off, pressing the Fn key with th e ap propriate k eys p rovidescurs or movement , pa ging an d o ther fu nct ions in the n ormal mode.

Caps Loc k ind icator. This LED indicates th at th e keyboard is locked inthe u ppercase m ode. To switch to th e lowercase m ode, press the Caps

Lock key. Sc roll Loc k in dicator. This LED lights to in dicate th at th e keyboard is

locked in th e scroll mode.

Standby In dicator. Lights when Notebook is in S tan dby m ode.

4 5 6

Q W E R T Y U I O P

1 2 3

CapsLock A S D F G H J K L

1 2 3 4 5 6 7 9^&@ %

07 9

Shift

0 0

X C V B N MZShift

[

{]

}

F n Ctrl Alt

F 2 F 3 F 5F 4Es c F1

88

Enter

F 1 1F10F9F8F 7F6 Dele teInser t

E n dH o me

Pg DnPgDnN um Lo ck P rt Sc SysRq ScrLock Pause

F1 2Break

Figure1 -5 Extens a Key board

1 -8 Genera l Descript ion


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Micros oft Work s

Quicken SE

Lotus Organ izer

Microsoft En tertainm ent Pack No. 4

1 . 4 . 6 Note book Expansio n Capabil i t iesExpan sion ca pa bili t ies bu ilt in to the Extens a n otebook series in clu de:

User installable expansion RAM memory (to a maximum of 40 MB);n otebook a ccepts ei ther fas tpa ge mode or EDO RAM modu les.

A Cab le-Conn ect PS/ 2 Num eric Keypad option, TI Par t No.25813 81-0001, can be a t tach ed to the externa l PS/ 2 Por t .

A par al lel device can be a t tach ed to th e n otebooks extern al 25-pinpa ra llel port (EPP/ ECP comp at ible).

Serial RS-232 Port for at ta ching a ny s erial device

Extern al VGA Port for dr iving an extern al color m onitor

Th ird Par ty Extern al PS/ 2 keyboard (or extern al mou se)

Th ree au dio jacks (l in e-in / out a n d m icrophon e in)

1 .5 St andard Te st Featu re sThe Extensa Series Notebook Computers use modular design and buil t- intest featu res t o redu ce the m ean t ime to rep air. A power on self testau toma tical ly verifies th e operat ional s ta te of th e prima ry circu its an d apowerfu l su i te of diagnostic tests a re a vailable to fu rth er test selected pa rtsof th e system .

1 .6 Not ebook Ass em bl ies andSubassembl ies

The Extens a Ser ies Notebooks a re m odular in des ign an d can bedisa ssem bled for ma inten an ce pur poses u s ing a s ta nda rd s e t of fla t -b laded,Phill ips-h ead a nd h exagona l screwdrivers. Th e ma jor as sem blies th atcomprise a typical notebook in th e Extens a family ar e sh own in Figure 1-7an d b riefly described in th e followin g par agrap hs .

1 -10 General Description


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1 . 6 . 1 Cover-Display AssemblyThe Cover -Display Ass emb ly cont ains th e LCD screen a n d a ss ociated high

voltage power supply and video circuitry. The Cover-Display Assemblyconta in s s everal field-replaceab le compon ent s includ in g:

LCD Ass em bly

Cab le Ass em blies

In verter Board

Contra s t Board

Floppy DriveAssembly

TouchPadAssembly

Top CaseAssembly

Charger/PowerSupply Board

Hard Drive Assembly

Floppy DriveAssembly

Battery EndCover

Bottom View

BatteryPack

Hard DriveC o v e r Hard Drive

Outer Cover

PentiumCPU

BatteryBoard

MainBoardAssembly

DisplayAssembly

SpeakerAssembly

LED/SwitchBoardAssembly

MemoryExpansionSockets

Figure 1 -7 Note book Ass em blies



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The Display Ass emb ly at ta ches to the System Base Ass emb ly th rou gh fourtop moun ted screws.

1 . 6 . 2 Sys tem Base Asse mblyAs shown in Figure 1-7, the majority of the notebooks field-replaceableu n its (FRUs) are located in th e system b as e ass emb ly. Th ese FRUs in clu de:

Main Board Ass emb ly

Hard Disk Drive Assembly

Up to two Du al Inlin e Memory Modu les

Flopp y Drive Assem bly

Power Su pply Board Ass emb ly

Battery Board Ass emb ly

Battery Pack Ass emb ly

Top Case Assembly

Touchpad Assembly

Keyboard Ass em bly (rem oved in Figu re 1 -7 for clar ity)

Battery Board Ass emb ly

1 .7 Exte nsa 5 1 x Series Note bookSpeci f ica t ions

Specificat ions for th e Exten sa 51x S eries Notebooks are provided in Table1-3 .

1 -12 General Description


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Table 1 -3 Extensa 5 1x Note book Features

Spe c ific at io n s Mode l 5 10 Mo de l 5 1 5

Memory:

Standard : 8 MB 8 MB

Maximum 4 0 MB 4 0 MB

Display

LCD Type: 1 0.4" Du a l Sca n Color 10 .4 " Du a l Sca n Color

Simultan eou s LCD/ Ext .VGA

Yes Yes

Video RAM Size : 1 MB 1 MB

Video Bus VLBUS with Graph ics Accelera tor VLBUS with Graph icsAccelerator

Keyboard/ Point Device

Ergonomic Keyboard Yes Yes

Built-In Touch pad Yes Yes

Storage

Floppy Drive : 3 .5 ", 1 .4 4 MB 3 .5 ", 1 .44 MB

Hard Drive : 5 40 or 81 0 Million Byte 54 0 or 8 10 Million Byte

Interfaces

Serial (RS-232) Port Yes Yes

Parallel Port(EPP/ ECP), Yes

Yes Yes

External VGA Port Yes Yes

External PS/ 2 Port Yes Yes

PCMCIA Support Type I/ II/ III Type I/ II/ III

Software U.S. Versio n : Dua l LoadNon-U.S. Versio ns : Windows 95only (In tern ationa l Load)

Windows 95, plusap plication s oftware(Refer t o Tab le 1-1)

Physical Characte r is t ic s 297 mm (L) x 45.5 mm (H) x 215

m m (W)

297 mm (L) x 45.5 mm (H) x

215 mm (W)

Dimens ions : 1 1.7 " (L) x 1 .7 " (H ) x 8 .2 " (W) 1 1.7 " (L) x 1 .7 " (H) x 8 .2 " (W)

Weight Ap p r ox . 5 . 9 lb s . (2 . 6 8 k g)* Ap p r ox . 5 . 9 lb s . (2 . 6 8 k g)*

* Weigh t s pecification s do n ot inclu de AC Ada pter



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2Insta l la t ion

2 .1 Introduct ionThis sec t ion conta ins u npa cking an d pr epara t ion for us e ins t ruc t ions forthe Extensa 51x Series Notebook Computers.

2 .2 Unpacking Ins t ruc t ionsTh e packa gin g diagram for th e notebook comp u ter is sh own in Figu re 2-1.Unpack the computer using the fol lowing instructions:

1. Carefu lly cu t th e tape th at s eals the top f lap of th e sh ippin g car ton.

2. Remove the compu ter an d th e accessor ies from th e ma in sh ipping

car ton .3. Remove all protective coverings from the computer.

4 . Remove the h olding tape an d open u p th e accessory box; remove th econtents .

n Note: Save the s h ipping conta iners a nd packaging for la te r reu se .

2 .3 Ins tal l ing Not e boo k Optio nsIf you ha ve n o option s to insta ll at th is t ime, sk ip to Para graph 2.3.Otherwise , cont inu e with Paragraph 2 .3 .1 .

2 . 3 . 1 Ins talling Dual Inline Me m ory Modu le(s)

n Note: If n ot insta l ling RAM Expan sion option at th is t ime, skip to th e n extpa rag raph .

cCaut ion: The Dual In l ine Memory Module con ta ins comp onents tha t a resens i t ive to s ta t ic e lec t r ic i ty. When handl ing the module an d the in ter-na l par t s of the com puter, pro tec t aga ins t s ta t ic e lec t r ic i ty by us ingwris t or ankle grounding s t raps and grounded w orking mats . When m ov-ing or s tor ing i tems, use the ant i - s ta t ic bags suppl ied w i th the i tems.

1. Ens u re th a t th e n otebook i s powered off an d th a t th e AC Adapter a ndintern al bat tery pack is removed from th e notebook.

2. Remove the DIMM modu le(s) from its sh ipping conta iner.

Installation 2 -1


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3. Releas e th e Keyboar d by pu ll in g the keyboard r eleas e tab s forward(tabs are loca ted u nd ernea th the Ctr l an d r ight a r row keys).

4. Disen gage th e Keyboar d u sing a str aigh t blade screwdriver an d gentlylifting up along the front edge of the keyboard.

5. Usin g the b ack edge of th e keyboard a s a h in ge, li ft th e front edge of the keyboard u p a nd lay it aga ins t th e d isp lay.

6 . In ser t th e edge of th e DIMM Board into th e lower conn ector (refer toFigure 2 -1). Use a rockin g motion to ful ly in sert the modu le. Pus hdownward on ea ch s ide of th e DIMM module u n ti l i t sna ps in place.

7. Repeat th e procedur e in St ep 6 (u pper conn ector) to ins tal l th e secondDIMM modu le.

8. Replace the keyboard a ssem bly and an y other componen ts rem oved inStep 1 .

This completes the expansion memory module instal lat ion procedure.

1

Slide Keyboard ReleaseTabs toward front of notebook.

Using a smallflat blade screwdriver,gently pry keyboard up

along the front edge.

2

Tilt the keyboard back against the display

Insert the SIMM modulesinto the two Main Boardmemory connectors

Figure 2 -1 Inst al ling Addit ional Mem ory

2 -2 Installation


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cCaut ion: There i s dan ger of explos ion i f the ba t te ry i s inc orrec t ly re -p laced . Replace the ba t te ry only wi th the sam e or an equiva lent typerecomme nded by the manufac turer. Discard used ba t te r ies acc ording tothe manufac turer s ins t ruc t ions .

2 .5 Instal l ing External DevicesMost extern al devices conn ect to the Notebook via the con n ectors on th erear of the n otebook (refer to Figu re 2 -4 for port a ss ignm ents ).

AC AdapterConnector

SerialPort

External PS/2Port (Mouse/KeyboardPort)

External VGAPort

ParallelPort

Audio LineOutput

ExternalMicrophoneInput

Audio LineInput

Figure 2-4 Extensa Port Ass ignme nts

Installation 2 -5


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2 . 5 . 3 Ins tal l ing External Se rial Port Devic eThe n otebook conta in s an RS-232 serial port with a m ale DB-9 con nector assh own in Figu re 2-7. Th e serial ports a re u sed to int erconn ect su ch d evicesa s :

Externa l Modem

Serial Printer

Any device tha t u ses an RS-232 interface

To conn ect a pr in ter to the n otebook, ensu re tha t both th e notebook and thepr in ter a re tur ned off.

cCaut ion: Neve r connec t a para l le l device to a se r ia l por t or a ser ia l de-v ice to a para l le l por t or v ideo por t ; th is may cau se damag e to theNotebook an d/or per iphera l device . I f you are unce r ta in of what type

conne ctor the exte rna l device has , re fer to the tech nica l manual for theexterna l device .

1 2 3 4 5

6 7 8 9

SERIAL PORT PINOUTS

123456789

DCD (CARRIER DETECT)RXD (RECEIVE DATA)TXD TRANSMIT DATA)DTR (DATA TERMINAL READY)GND (GROUND)DSR (DATA SET READY)RTS (REQUEST TO SEND)CTS (CLEAR TO SEND)RI (RING INDICATOR)

PIN SIGNAL

Figure 2-7 Serial Port Locat ion/ Pinouts

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2 . 5 . 4 Ins talling Exte rnal VGA Mon ito rThe notebook is capa ble of driving both i ts inter na l LCD display a nd anextern al VGA m onitor (LCD only, simu ltan eou s, or VGA only). Th e extern almoni tor conn ector p inouts an d conn ector loca t ions are s hown in Figu re 2-8 .To ins tal l an externa l monitor with th e n otebook, u se th e followin g steps:

1. Ens ure th a t both the notebook and the externa l moni tor a re tur nedoff.

2. Locate th e 15 -pin fema le VGA port on th e rea r of the n otebook.

3. Attach th e ap propriate en d of the mon itor cab le to th e VGA port onyou r n otebook. If the m onitor cable conn ectors h ave retaining screws,t ighten th em down.

4. If neces sa ry, conn ect the m onitor power cable to the mon itor, andplug th e mon itor power cable into a n electr ical outlet .

5. Power on th e m onitor, as well as an y other periph eral devicesconn ected to th e notebook; then power u p th e n otebook.

1234567891011, 12131415

RED VIDEOGREEN VIDEOBLUE VIDEONOT USEDGROUNDRED RETURNGREEN RETURNBLUE RETURNNOT USEDGROUNDNOT USEDHORIZONTAL SYNCVERTICAL SYNCNOT USED

OUTPUTOUTPUTOUTPUT

INPUTINPUTINPUT

OUTPUTOUTPUT

PIN SIGNAL NAME DIRECTION

EXTERNAL VGA CONNECTOR PINOUTS

12345

78910 6

1112131415

Figure 2-8 External Monit or Port Pinouts

Installation 2 -9


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3 . 2 . 1 But ton Switche sThe n otebook conta in s two button switches ab ove the keyboard including:

Powe r On/ Off Switch - Altern ate a ct ion, bu tton type switch th atcontrols power to the u nit . Pressing the Power button cau ses p ower tobe ap plied to the n otebook an d power up s elf test to be ru n. The PWRLED (left rea r corn er of n otebook) glows green a n d th e compu ter th enloads Windows 95 . When the Power bu t ton i s pressed a gain , th eNotebook p owers down a n d a l l da ta in RAM mem ory is lost .

Standby/ Suspend But ton Switch - a n a l terna te ac t ion touch switchtha t invokes th e save to d isk fea tu re an d p laces the u ni t in S ta nd byMode (if previou sly On) or On if previou sly in S ta n db y Mode.

3 . 2 . 2 Cove r Release Latc hThe Notebook con tains one Cover Releas e latch. To open th e n otebook, s l idethe Releas e Mecha n ism to the r igh t an d l ift u p on th e front edge of th en otebook cover.

TouchpadPointing Device

TouchpadSelect Buttons

Power On/Off Button

PowerLED

Standby/SuspendButton

Setup Button

ChargingLED

Status

LEDs

ScrollLock

CapsLock

Nu mLock

Hard Drive

ActivitySleepM od e

Figure 3-1 Exten sa Series Cont rols and Indicato rs

3 -2 Operating Instructions


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In sert th e floppy into th e floppy drive slot with th e label s ide u p a n d th emeta l-sh u tter en d f irst . Gen tly pu sh th e floppy into th e floppy drive slotuntil the floppy clicks into place.

To remove a floppy, press th e eject bu tton u nt il the f loppy pops ou t .

Never force open the a ccess s hu tter on a floppy.

Always rem ove a flopp y from th e floppy d rive b efore tu rn ing off thecomputer.

Never tra n sport the compu ter with a floppy in th e floppy drive. Doing s ocan d am age the dr ive head .

If a f loppy app ears to be da ma ged, t ry to mak e a copy of i t , andimmed iately disca rd it .

Keep al l floppies, when n ot in u se, in a disk s torage box to protect themfrom da ma ge or loss.

3 . 3 . 2 Installing/ Removing PCMCIA OptionsPCMCIA cards are inser ted a nd e jec ted in m u ch th e sam e way as d iske t tes :

Type I, Type I or Type III PCMCIA options may be installed in thecompa rtm ent on th e left s ide of th e notebook.

To ins ert a PCMCIA card , al ign th e card with th e socket a nd sl ide th ecard into the s ocket un ti l it locks into place.

To eject a PCMCIA car d, go to th e Win dows 9 5 Con trol Pan el, select PCCard , and s e lec t the card to s top; then press th e re lease bu t ton an dremove the PCMCIA option.

3 . 3 . 3 Com pute r Hot Key sThe Extens a Series recogn izes th e following hot k ey sequen ces:

Ctrl-Alt-Del (warm boot)

Ctrl-Alt-Esc (Enter s e tup screen); to use , power u p n otebook a nd pressF8 a t "Sta rting W ind ow s 95 " message. Select Com mand Prom pt Only ;then p re s s Ctrl-Alt-Esc .

Fn-F2 (in combination with Fn a n d left/ right arrow keys)(Screenbr ightness and cont ras t ad jus tments) ; Fn-Esc to get out of ad ju stm entrout ine .

Fn-F5 (in combination with Fn a n d left/ right arrow k eys )(Au d iovolum e con trol); Fn-Esc to get out of adjustment routine; Fn-F1 for h elp.



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3 . 3 . 4 Respo nding to Low Batt ery Condit ionsTh e compu ter genera lly wil l n otify you when you ar e rea ching a low batterycond ition b y th e followin g actions :

Four s hor t beeps p er minu te (u nless ba t te ry warn ing i s d isab led)

Th e ba ttery low war ning is au toma tical ly disa bled when th e AC Ada pteris ins tal led on th e n otebook, regardless of th e ch arge condit ion of th ebat te ry pack .

If th e AC ada pter is n ot plu gged in with in th ree minu tes of a d etectedba ttery low condit ion, th e notebook enter s Su spen d m ode (if low batterysu spend is s pec ified in se tu p). When the n otebook enters Sus pendmode, i t iss u es one b eep, sa ves con tents of RAM to disk an d powersdown th e un it .

The Notebook returns to the normal operat ing mode when the powerswitch is a ct ivated. Th e u nit th en recovers RAM inform ation from th e

h ard drive an d rest ores th e un it to its pr eviou s "On" condit ion.

3 . 3 . 5 Minimizing Power UsageThe following a ct ions can minimize power u sa ge an d pr otect your work du ring the crit ical minu tes before you sh u t the system down or replace onthe ba ttery packs with a ful ly cha rged pack:

Press Ctrl-Standby to sh u t off th e alarm (if its ena bled)

Save RAM Disk (if using RAM Disk feature)

Press Standby/ Suspe nd bu t ton to pu t the compu ter inStan dby/ Su spend mode when ever you are n ot ac t ive ly us ing thecompu ter. Th is wil l sa ve al l you r work an d rem emb er th e ap plicat ionan d file you were previou sly u sing when you r etu rn to the On condit ion.

Power down th e system if you do not need th e com pu ter

3 . 3 . 6Recharging the Battery Packs

The ba ttery pack m ay also be char ged in th e notebook as fol lows:

1. Ins tal l th e ba ttery pack in you r comp u ter (if n ot already insta lled).

2. Conn ect the AC Ada pter a s des cribed in S ection 2.

3. To fully charge the battery pack, leave it charging in the Notebook u n til the Cha rge LED extingu ish es (ap proxim ately 90 m inu tes).

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3 . 3 . 7 Resto ring Miss ing Sys te m FilesWh en you p ower u p th e Notebook, i t au toma tical ly checks for certain k eyfi les th at mu st b e pres ent for n orm al system operat ion. If an y of thes e filesare a cc identa lly e rased a s ind ica ted by er ror mes sage , ins er t the Wind ow s95 S tartup diskette a nd reboot the s ystem. This will allow you to boot upan d t roubleshoot your sys tem.

3 . 3 . 8 Rebui ld ing the Sys t em Sof twareIn th e event of a h ar d drive replacem ent or system board r eplacemen t whichresu lted in loss of system software, you ma y need to rebu ild th e entiresys tem software s t ru c ture .

The following i tems are requ ired to rebu ild the system software:

Set of ba cku p diskettes of th e system software or Window s 95 Startupdiskette

Operational Notebook

Ins er t the Window s 95 Startup diskette in the Notebook floppy drive andpower up the sys tem.

n Note: For add it iona l opera t ing procedur es, refer to the Extensa Series Note-book Comp uter Use rs Manua l.



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4Th e o ry o f Ope rat ion

4 .1 Introduct ionThis s ect ion d escribes th e n otebook th eory of operat ion.

4 .2 Not ebook Func t ion al Desc rip t ionFu nctionally, the n otebook com pu ter con sists of the followin g ma jorsubsys t ems :

Processor an d Memory Subs ys tem

I/ O Subs ystem

Video Su bsystem

Hard Disk Su bsys tem

Floppy Disk S u bsystem

PCMCIA Su bs ystem

Power Subsystem

A fu n ctiona l block diagram of th e Extens a Notebook is sh own in Figure 4 -1.

4 . 2 . 1 Proc es sor / Mem ory Subsys te m sTh e Process or fu n ction, h ous ed on th e Main Board, is imp lemen ted with a100 MHz Int el Pentium Processor. Th e processor opera tes in conju n ctionwith RAM and ROM Memory on the Memory Board and other control logicon th e Main Board to process s oftware ins tru ctions (BIOS, Win dows 95, a n dApplications).

The m emory subs ys tem, implemen ted on th e Main Board an d opt ional Dual

In lin e Memory Modu les, pr ovides 8 MB (expa n da ble to 40 MB) of fas t DRAMmemory, 128 bytes of CMOS RAM (battery backed up) and 256 KB of FlashROM for system an d video BIOS stora ge. Tables 4-1 th rough 4-3 conta in th eNotebook I/ O addr ess m ap , DMA cha n nel ass ign men ts an d IRQ in terru ptlevel assignments respectively.

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4 . 2 . 2 I/ O Subsys te mThe I/ O sub system , implemented with an NS873 34 VJ G Su per I / OController Ch ip, pr ovides for su ch fu nctions as intern al Hard Drive contr ol,floppy drive control, and serial and parallel ports. The Super I/ O Controllerincludes the following features:

100 percen t compa tible with ISA, EISA, an d Micro-chan nel arch itectu res

Bu ilt-in F loppy Disk Cont roller

Software comp atible with t he DP847 3, th e 765A an d N82077

16-b yte FIFO (defau lt disab led)

Burs t an d Non-bu r s t modes

Perpendicular Recording drive support

New h igh-performa nce in tern al d igita l da ta separa tor (no extern alfi l ter components required)

Low-power CMOS with enhanced power-down mode

Aut omat ic media-sense su ppor t

Two UARTs

Software compat ib le with the PC16550A and PC16450

MIDI comp at ible

Infrared su pp ort on UART2 (IRDA -compliant)

Bidirectiona l Para llel Port

En ha n ced Para llel Port (EPP) compa tible

Exten ded Cap abilit ies Port (ECP) comp atible, including level 2suppor t

Bidirectional under either software or hardware control

Comp atible with ISA, EISA, an d Micro Cha n nel arch itectu res

Ability to m u ltiplex FDC signa ls on p ara llel port pins for extern alFDD

Includes protect ion c i rcu it agains t da ma ge cau sed when pr in ter i spowered up, or operated at higher voltages

In tegral IDE con troller

Provides a complete IDE interface with DMA control (except foroptional bu ffers)



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4 . 2 . 6 PCMCIA Subs ys te mThe notebook is equipped with a n on-board PCMCIA hos t a da pter PCMCIACont roller) an d s ockets to su ppor t Type I, Type II or Type III options . ThePCMCIA Cont roller h as th e followin g feat u res :

Single-chip PCMCIA host adapters

Direct c on n ection to ISA (PC AT) Bu s

Direct con n ection to PCMCIA 2.0 Bu s

PCMCIA 2.0 - a n d J EIDA 4.1-com plian t

82365SL-compatible register set, ExCA-compatible

Automatic Low-power Dynamic Mode for lowest power consumption

Programm able Sus pend Mode

Five program ma ble memory win dows per s ocket

Two I/ O wind ows per socket

Program ma ble card a ccess cycle t iming

8- or 16-bit CPU interface

8- or 16-bit PCMCIA interface support

ATA disk interface s u pp ort

Au toma tic flas h m emory t imin g su pport

Eas y host int erface u sing ISA I/ O addr esses 0 3E0 h, 03 E1h

Mixed-voltage (3.3 V or 5V) oper a tion

Dua l-socket- in terface, 20 8-pin QFP

4 . 2 . 7 Power Subsys te mTh e Power Su bsystem consists of the following m ajor par ts:

Power Man agement (hardware a nd software components )

AC Ada pt er

Prima ry Battery Board

Prima ry Battery Pack

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4 . 2 . 7 . 1 Po we r Ma nag e m e n t

The n otebook i s equipped with a p ower m an agement funct ion tha tminimizes ba ttery usa ge for prolonged battery operat ion an d au toma tical lyrecharges the b a t te r ies when the n otebook i s us ed with an AC ada pter.

Th e power ma n agemen t modes a nd warn in gs in clu de th e followin g:

LCD standby mode

Hard d isk s tan dby mode

Sys tem s t andby / su spend mode

Battery-low warn in g

Stan dby/ su spend u pon ba t te ry low

4 . 2 . 7 . 2 AC Ada pt e rThe n otebook u ses an AC ada pter with bu ilt in over voltage an d s hort circu itprotect ion.

The a dapter can withs tan d a cont inu ous s hor t -c ircui t to DC ou tpu t withou tdam age to the notebook logic components . The ad apter opera tes in Sh u t -down m ode sh ort ing Vo trai l an d resets to the n orm al Power mode after th efault condition is removed.

4 . 2 . 7 . 3 Pri m a ry Ba t t e ry Pa c kThe Extens a Ser ies Notebooks u se th e Du race ll DR35 as the pr ima ry ba t te rypa ck. Sp ecificat ions for th e Primar y Battery Pack ar e provided in Table 4-4.



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Table 4 -4 Primary Battery Pack Spe cif icat io ns

Fun c t ion Spe c ific at io n s

Ba tter y typ e NiMH (Nick el Meta l-Hyd rid e)

Cell s tru ctu r e 9 cells p er p ack (in s er ies )

Nom in a l volta ge 10 .8 V

Cell energy capacityTypicalMinimum

2400 mAH2500 mAH2330 mAH

No m in a l r a t ed c a p a cit y 2 7 Wa t t -h o u r s

Operat ing Tempera tu re _

DischargeCharge

-20 to 5 0C (at 95%RH)0 to 4 5C (at 9 5%RH)

Charge and dischargecycles

500 (minimum)

Weigh t 47 0 gra m s

B a t te r y d is c h a rge t im e 3 h o u r s (w it h AP M)Bat tery charge t ime

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5Trou ble s h oo t ing Proc e dure s

5 .1 GeneralTh is sect ion pr ovides th e followin g in form at ion :

Overview of th e fau lt isolat ion pr ocess

Gu idelin es for isolat ing compu ter m alfu nctions to replaceablesubassembl ies

In stru ctions for execut in g diagnostics an d in terpret ing error mess ages

5 .2 Ove rvie w of Fault Iso lat io n Proc e ssThe fau lt isolat ion pr ocess (su m ma rized in Figure 5-1 ) consists of th efollowin g:

Qu ick Ch eck of th e followin g:

Notebook power system (inclu ding batt ery packs an d AC Adap terconnections) - refer to Paragraph 5.4.

Switch se t t ings (ensu re Power switch is On, and press Standbyswitch to ensu re tha t Notebook is not in Sta nd by mode; press Shiftto ens u re the notebook is n ot in Au to-Su spend mode.

All exter n al ca bling (if an y)

Check LCD Contrast adjustment (refer to Section 3)

Record a n d at temp t to resolve an y displayed error mes sa ges/ LEDindications (refer to Paragra ph 5.3 a nd Tab le 5-1)

Record a n d at temp t to resolve an y series of beeps em itted from th enotebook indicating test failure (refer to Table 5-2)

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Group of special pu rpose u t il it ies to ru n other tests from PC-Doctor,perform a viru s sca n of th e intern al RAM system, edit configura t ionfiles , su r face scan ha rd dr ives , meas u re sys tem performan ce , open aDOS promp t, provides termina l access to devices conn ected to serialpor ts , su ppor ts m emory debug opera t ions , en ables remote opera t ions ,perm its deep discha rge of n otebook ba tteries an d provides a n extensivetest report ing fu n ction.

Th e PC-Doctor diagnostic program contains a group of nine n on-Inter act ivediagnostics, availab le from th e Diagnos t ics head ing in t h e ma in menu , t ha tperm its test ing various h ar dware sect ion s with out operat or inp u t . You canselect one, several, or all tests from th e Diagnost ics m enu . Th ese tests arenon -destru ctive; th e serial an d pa ral lel port tests r equire disconn ectin gexterna l devices from you r n otebook a nd in sta ll ing loopback plugs. TheNon-Int eract ive test categories inclu de:

CPU and Coprocessor-Processor Tests

Bas e RAM mem ory test

System Board tes t

Video Test

COM1 an d LPT1 serial port tests

Parallel Port Test

Fixed Disk t est

Diskette Dr ive tests

Oth er devices (Sou nd card , PCMCIA options, etc.)

5 . 3 . 5 . 1 In t e ra c t iv e Te s t s

The PC-Doctor d iagnostic test includ es a su i te of seven Intera ct ive tests th atrequi re opera tor inp ut du r ing th e cou rse of the tes t . The Inte rac t ive Tes t scategory in clu des:

Keyboard - tes ts th e keyboard k eys , LEDs an d repeat fun ct ion

Video - tes ts th e LCD an d externa l VGA chara cter se ts , an d colors

Speaker - tests the volume response at different frequencies

Mouse - tes ts th e mou se dr iver, bu t tons a nd fu nct iona lity

J o y s t i c k - calibrates the external joystick connected to the systeman d tes ts th e joyst ick bu t tons

Disket te Drive - checks diskette d rive fu n ctiona lity

Maximum Syst em Load - thoroughly exerc ises th e sys tem to th ema ximu m extent poss ible for performing sys tem "burn - in" and tes t



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Printer Test - tes ts th e opera t ion of a connected pr in ter

SCSI Tes t - send s tes t codes to a t tached SCSI devices (requires u seof a Docking System with SCSI)

CD-ROM Test - checks ou t an y attach ed CD-ROM Drive (requ iresatta chm ent of a Docking System with CD-ROM capab ili ty)

5 . 3 . 5 . 2 S u pp o rt i n g On li n e Do c u m e n t a t i o n

The PC-Doctor Diagnostic contains the following online information sources:

Online Tec hnic al Manual - selected at a n y t ime by press in g th e F1 keytwice or by clicking on th e Qu estion Mark in t h e up per left h an d cornerof an y PC-Doctor Menu

On-line Help system th at provides context s ens i t ive inform ation fromevery PC-Doctor screen- a ccessed b y pressing th e F1 key once (pres singF1 twice gets you into the on lin e ma n u al)

PC-Doctor is s tru ctu red as a text-mode, wind owed u ser inter face withpu ll-down m enu s. Program operat ion requ ires the u se of th e followin g keys:

Cursor Key s - Move th e h igh lighted pointer

Enter Key - Selects the highlighted option

Esc Key - Cancels cu r rent fu nct ion an d goes ba ck one s tep

F1 Key - Activates th e context-sen si t ive h elp featu re (pressing F1 twicein a row calls u p th e onlin e Technical Reference Manual for PC-Doctor )

Scroll in g win dows, which s h ow th e resu lts of various operat ions, u se th efollowing keys:

Page Up/ Page Down - Moves th e screen one pa ge at a t ime

F2 - Prints th e log to PRN

F3 - Saves the log to a file

You can also u se th e mou se, or Poin t , to int eract with PC-Doctor. Th eleftmost Se l ec t key is u sed to choose objects (men u ent r ies an d act ioncodes typically enclosed in brackets). The rightmost Se l ec t key is equivalent

to the Es c key which ta kes you ba ck to your pr evious s tep.

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5 .3 .5 .3 Crea t ing a Boo table F loppy Diske t t e

Prior to u sing PC-Doctor, crea te a bootable floppy diskette u sing th efollowin g p rocedu re:

1. Power up th e u nit ; wh en u nit displays mess age, "Star t ing Wind ows 95",p re s s F8 . Choose Com mand Prompt Only from menu.

2. Using DOS, format a floppy diskette.

3. From the A: promp t, copy th e ba sic MS-DOS files to th e diskette u singthe following command:

Format A: / F:1 44 0 / S

where th e value 1 440 is th e capa city of th e diskette (1.44 MB in th isexample).

4. Get into the PC-Doctor directory

(type CD C:\ PCDR and p re s s Enter ).

5. Copy the PC-Doctor files t o the b ootable disk ette u sin g the followin gc o m m a n d :

XCOPY C:. A:

After completion of this procedu re, you sh ould h ave a b ootab le diskettecontaining PC-Doctor.

5 . 3 . 5 . 4 Ru n n in g PC-Do c t o r

PC-Doctor i s a DOS-res ident pr ogram tha t can be ru n from e i ther h ard d isk or from th e bootable diskette you previous ly created.

1. From th e C:\ prom pt, ch an ge directory (type CD C:\ PCDR ) an d pressEnter .

2. From th e C:\ prom pt, type PCDR and p re s s Enter .

3. Th e Diagnostics Program loads int o system m emory, an d th e LCDdisplays th e Diagnostics Head er.

n

Note: There are a nu mber of comma nd- l ine swi tches th a t can be entered

when s ta r t ing u p PC-Doctor to enable au tomat ic viru s scan ning , enableloopback t est ing of serial / par al lel ports , work from th e rem ote men u if per-form ing remote opera t ions , etc. To get a lis t ing of the availab le comm an d-lin e switches, s tartu p PC-Doctor with th e followin g comma n d: PCDR / ? a n dpres s Enter .



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6Fie ld Se rvic e

6 .1 Introduct ion

This sect ion conta in s pr event ive an d correct ive ma intena nce pr ocedures forthe E xtens a 5 1x Series Notebook Compu ters. The first p art of the s ect iondescr ibes th e compu ter c lean ing procedures a nd prefer red ha nd lingprocedu res for s ens i t ive comp onen ts (e.g. disk drives, b at teries).

The second part of the section identifies all field-replaceable parts; theremainder of the sect ion contains removal and replacement procedures forthe field-replaceab le pa rts .

6 .2 Preve nt ive Mainte nanc ePreventive m ainten an ce is l im ited to clean in g the plas t ic case, th e interior of the n otebook inc lu ding th e keyboard , touch pad an d th e LCD screen .

6 . 2 . 1 Cleaning the Com puterWhen it i s necessa ry to clean the p las t ic case an d keyboard , us e a soft ,lin t-free cloth , s l ightly da mp ened with a m ild deter gent solut ion or u se th econten ts of an y commer cial ly availab le compu ter clean in g kit .

c

Caut ion: Neve r use a lcohol , pe t ro leum-based so lvents , or harsh de ter-gents to c lean your compute r. Also neve r spray any l iquids d i rec t ly onthe c ompu ter case , key board, or scree n. If the l iquid-crystal display(LCD) screen has bec ome sm eared o r dus ty, c lean th e scree n by f i r s t ap-plying a mild glas s clean er to a soft , clean, lint-free c loth, and gen tly

wipe the g lass . Never apply l iquids d i rec t ly on the scree n sur face .

c Caut ion: Do not use pape r towels to c lean the d isp lay screen . Paper canscra tch the d isp lay screen mat te .

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6 . 2 . 2 Prote c t ing th e Disk DrivesTo protect the disk drives an d da ta, ba ck u p th e system d isk p eriodically onfloppy diskettes. Periodically use a head-cleaning diskette in the floppydiskette drive to prolong th e l ife of th e drive an d to h elp m ainta in dat aintegrity.

6 . 2 . 3 Handling the Com pute r Batt ery PackThe ba t te ry pack fu rn ish ed with th e compu ter requires reas onable care an dha n dling to en su re efficient operat ion a nd ma ximu m life. Periodical lyins pect the ba ttery termina ls a nd th e batteries for eviden ce of corrosion an doxide b u ild-u p; clean if necessa ry.

To ensu re th at th e battery pa ck endu res a n orm al li fe cycle, always observethe following preca u tions when ha nd lin g th e battery pa ck:

Do not drop th e batt ery pack or su bject i t to excess ive sh ock an dvibration.

Do not expose th e battery pack to direct sun light , moistu re, or ch emicalcompounds .

Do not d isas semble the ba t te ry pack .

Do not us e the b attery pa ck to power other d evices.

Do not sh ort the ba ttery leads or conn ect the ba ttery with r eversedpolarity.

Never a t tempt to cha rge the b a t te ry pack in an y way o ther th an asdescr ibed in th is ma nu al .

Always cha rge the ba ttery pack a s s oon as possible after a low batteryindicat ion.

6 . 2 . 4 Resto ring Syst em Sof twareTh e ha rd d rive on th e n otebook comp u ter is factory loaded with Windows 95or Win dows for Workgrou ps an d r eady for operat ion. Su pplied with th esystem is a u t i lity for creat ing ba cku p d iskett es of th e system software. In

the event of a d isk cras h or other pr oblem, you can u se th e Window s 95Startup disket te or other b acku p d iske t tes to boot the u ni t an d per formtroubleshooting.

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6 .3 Require d Too ls and Equipm e ntAll notebook computer correct ive maintenance procedures can be performedu sin g th e followin g tools:

Tweezers

Small flat-blade screwdriver

Sm all Phillips scr ewdriver

Hexagonal Screwdriver

Plas tic Stick

Condu ctive ma t/ wrist or a n kle groun ding stra p system for electrostat icvoltage protect ion .

cCaut ion: All boards , opt ions a nd pe r iphera ls conta in c ompone nts tha tare se ns i t ive to s ta t ic e lec t r ic i ty. When handl ing any of these i tems, pro-tec t aga ins t s ta t ic e lec t r ic i ty by us ing wr is t or ankle grounding s t rapsand grounded conduc t ive mats . When moving or s tor ing i tems, use theant i -s ta t ic bags suppl ied wi th the i tems.

6 .4 Notebook Field-Replaceable Parts

and Ass em bl iesAll mem bers of th e Extens a 5 1x Series Notebook Compu ters con tain twoma jor a ss emblies includ ing th e Cover -Display Ass emb ly (u pper ha lf of notebook compu ter) an d th e System Base Ass emb ly (lower h alf of th enotebook). Each of th ese two ass emblies conta in FRUs a s des cribed in th efollowin g su bpa ragrap hs .

6 . 4 . 1 Display Asse m blyAs s h own in Figure 6 -1, th e Display Ass emb ly con tains th e LCD screen ,Power Inverter Board and Contrast Board.

Th e Field-Replacea ble Units (FRUs) an d t h eir resp ective TI Par t No.s a n dass embly/ d isa ssem bly reference para graph nu mb ers a re provided in Table6-1 .

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FRU Des cript ion TI Pa rt No . Re fe re n c eParagraph

No .

Keyb oa rd As s em bly, SWD, EXT5 0x/ 51 x 9 81 1 3 98 -00 10 6 .5 .2

Keyb oa rd As s em bly, DEN, EXT50 x/ 5 1x 9 81 13 9 8 -00 12 6 .5 .2

Keyb oa rd As s em bly, NOR, EXT5 0 x/ 5 1 x 9 81 13 9 8 -00 13 6 .5 .2

Keyb oa rd As sem bly, BELG, EXT50 x/ 5 1x 9 81 13 98 -0 014 6 .5 .2

Keyb oa rd As s em bly, FIN, EXT5 0x/ 51 x 9 81 13 9 8 -00 15 6 .5 .2

FDD Ca b le 9 81 13 66 -00 01 6 .5 .5

HDD Ca b le 9 81 13 65 -00 01 6 .5 .6

Up per Ca s e As s em bly 9 81 1 3 70 -00 0 1 6 .5 .4

Lower Case Ass emb ly (for n on-U.S. u n its; lower ca secann ot be replaced in U.S. due to regula tory agencyrequirements)

9 81 13 71 -00 01 6 .5 .4

Clip , Sp ea ker 9 81 13 90 -00 01 Ref

Cover, Ca b le 9 80 57 4 5 -00 06 Ref

Cover, HDD Ass em bly 9 81 13 74 -00 01 6 .5 .6

Hin ge Cover 9 80 57 45 -00 07 Ref

Hea t Sin k As s em b ly 9 81 1 3 97 -00 01 6 .5 .3

Mou s e Bu t ton (left) 9 81 13 99 -00 01 6 .5 .11

Mou s e Bu t ton (r igh t) 9 81 17 25 -00 01 6 .5 .11

Tou ch p a d Ca b le As sem bly 9 8 1 17 30 -00 01 6 .5 .11

Cover, Power Su pp ly 9 81 13 92 -00 01 6 .5 .4

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6 . 5 . 3 Remo ving/ Replac ing th e Heat SinkTo remove an d replace th e hea t s ink , perform th e followin g procedure:

1. Discon nect t he AC ad apt er from t he Notebook.

2. Remove the ba t te ry as descr ibed in Para graph 6 .5 .1 .

3. Loosen an d t i lt back th e the keyboard a ss emb ly as described inParagraph 6 .5 .2 .

4. Remove the four Phi llips-hea d screws th a t s ecure th e hea t s ink to thema in boa rd .

5. Lift u pward on th e hea t s ink a n d rem ove it from th e bas e.6. Replacem ent is th e reverse of Steps 1 th rou gh 5 a bove.

1

Slide Keyboard ReleaseTabs toward front of notebook.

Using a smallflat blade screwdriver,gently pry keyboard upalong the front edge.

Remove ZIFCables from

Main Board

2

Figure 6-2 Rem oving/ Replacing the Keyboard

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6 . 5 . 4 Open ing/ Replacing t he Upper Case Ass em blyTo remove/ replace the Top Case Assembly, perform the following procedure:

1. Remove the AC Ada pter, ba ttery pa ck, a n y in sta lled PCMCIA options ,th e Keyboar d Ass emb ly an d Heat S in k Ass emb ly as described inParagraphs 6 .5 .1 through 6 .5 .3

2. Tu rn th e notebook over a nd rem ove th e six Phillips-h ead s crews fromthe bottom of the notebook. Then turn notebook r ightside up.

3. Remove the four s crews th at s ecur e th e Top Case Ass emb ly to thebase .

Remove set of four screwsholding heat sink

Heat Sink Assembly

Release keyboardassembly and

tilt up againstDisplay.

Figure 6-3 Rem oving/ Replacing the Heat Sink Ass em bly

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3. Tu rn the compu ter over so th a t th e Hard Dr ive pan el is on you r r ightside.

4. Press down on th e two cover r eleas e tab s a nd sl ide to th e left ; lift u pon th e drive door an d rem ove from th e notebook.

5. Remove the two screws n ear th e drive conn ector cable.

6. Ins ert a s ma ll blade stra igh t s lot screwdriver int o the recess in theplast ics n ear t he front edge of th e meta l cover an d gently move thedrive ba ck; li ft u pwar d when th e meta l l ip clear s th e plast ics.

7. Lay the drive over facing the rear of the notebook.

8. Gently pu ll on th e plast ic ban d to remove th e cable con nector from th edisk d rive.

9. Remove the disk drive from the bay. To remove the metal shield fromth e drive, remove the four recessed screws.

10. Replacem ent is ess ent ial ly the reverse of Steps 1 th rou gh 9.TIP: In sert th e frontm ost edge of th e drive in first so th at th eprotru ding meta l l ip clears th e cutou t in th e plas t ics before guiding

th e rema in der of th e drive int o the ba y; th en ins tal l an d t ight en th etwo rear -most s crews an d replace the plas t ic cover.

Hard DriveCover

HDD ReleaseLatches

Figure 6-4 HDD Rem oval/ Replacem en t

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cCaut ion: I f the note book i s powe red up w i th the LCD bezel remove d,you can be expose d to h igh vol tages which cou ld resul t in shock andequipmen t damage. Ensure tha t the ba t te r ies and AC adapter a re re -moved f rom the n otebook w hen working on the LCD/Display assembly.

1. Use a narrow piece of plastic or pointed tweezers to apply lightpress u re to on e edge of th e lower screw covers. The lower s crew

covers will bow ou tward an d can be rem oved.2. Remove the ru bber u pper s crew covers u sing a pa ir of tweezers.

3. Remove the s ix screws th at s ecur e th e bezel to the d isplay as sem bly (asm all Ph illips-hea d s crewdriver is r ecommen ded for rem ovin g the twoscrews at the top of the bezel).

4. Pu ll on t h e ins ide edges of th e bezel; rem ove bezel an d lay as ide forlater reinsta llat ion.

5. Peel back the EMI shield along the right side of the display to exposethe Inver ter Board an d th e Contra s t Board .

6. Disconn ect the conn ectors at th e top and bottom of the Inverter Boar dan d/ or Cont ras t Board .

7. Use th e sm all Phillips-h ead screwdriver to rem ove th e two screwsh olding the Inverter Board or Contr as t Board; remove th e BoardAssembly.

8. Reins tal lat ion of th e In verter or Contr as t Board is t he reverse of Steps1 th rough 7 a bove .

6 . 5 . 1 0 Remo ving/ Replac ing t he Touc hpad Asse mblyTo remove an d r eplace th e Tou chp ad Ass emb ly, perform the followingprocedure :

1. Remove the Upper Cas e Ass emb ly as described in Para graph 6.5.4.

2. Tu rn th e Upper Case Ass embly over an d rem ove the four s crews tha tsecure a m eta l sh ield to th e p las t ics .

3. Lift th e plas t ic fram e th at r ests on top of th e touch pad .

4. Unplu g the flex cable from th e conn ector on th e touch pad . Note tha tth e boa rd conn ector is a LIF (Low in ser tion force) type; th e ca ble is

h eld in place by friction .5. Slide the boa rd a ss emb ly to the r igh t an d rem ove from th e un it .

6. Replacem ent of th e Touch pa d Board Ass emb ly is es sen tially thereverse of Steps 1 th rough 5 ab ove.

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ASe lf Te s t Erro r Me s s age s

A.1 Introduct ionThis ap pend ix conta ins re ference da ta u sefu l in d iagn os ing an d correc t ingself test errors.

Table A-1 Self Test Error Messages

Error Mes sage Corre ct ive Act ion

CMOS Ba t t ery Ba d Rep la ce Ma in Boa rd

CMOS Ch ecks u m Error Cycle power to Notebook; if problem pers is ts , remove an d re-place Main Board .

Dis k Boot Fa ilu re In s er t a s ys t em d is k in d r ive A

Diskette Drive Controller Error or NoController Present

Cycle power to Notebook; if problem persists

Dis k et te Dr ive Er ror In ser t Dis k et te a n d r et ry; if problem p ers is ts , t ry an otherdisket te

Dis ket te Dr ive Typ e Mis ma tch Pres s Ctrl-Alt-Esc to reconfigure

the sys t em.

Equ ip men t Con figu ra tion Er ror Pres s Ctrl-Alt-Esc to reconfigurethe sys t em.

Ha rd Dis k 0 Error Cycle power to Noteb ook ; if problem pers is ts , replace HardDrive

H a r d D is k 0 E xt en d e d Typ e E r r or C yc le p ow er t o No te b oo k; if problem pers is ts , replace HardDrive

Inser t sys tem disket te and press keyto reboot Ins er t a s ys tem disk in dr ive A

I/ O Pa r ity Error Cycle p ower to Notebook ; if problem persists, replace MainBoard

Keyboard Error or No KeyboardConnected

Cycle power to Notebook; if problem pers is ts , check keyboardconn ections ; if problem pers ists,replace Keyboard; if problempers is ts , replace Main Board.

Error Messa ges A-1


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Checkpoin tNo .

Descr ip t ion

D4 h Nor m a l POST s ta r t

0 4h Pr ogr am m a ble In ter va l Tim er t es t in -p rogr es s orfailur e

0 6 h DMA p a ge r egis ter wr it e/ r ea d t es t in -p rogr es s orfail

0 8 h RAM r efr es h ve rifica t ion in -p r ogr es s or fa ilu r e

0 9 h 1s t 6 4K RAM tes t in -p rogres s

0 Ah 1 s t 6 4 K RAM c h ip or d a ta lin e fa ilu r e - m u lt i-b it

0 Bh 1 st 6 4K RAM od d/ even logic fa ilu r e

0 Ch 1s t 6 4K RAM a ddres s lin e fa ilu re

0 Dh 1 s t 6 4 K RAM p a rit y t es t in -p rogr es s or fa ilu r e

1 0h 1 st 6 4K RAM ch ip or d at a lin e fa ilu r e b it 0

2 0 h S la ve D MA r egis ter t es t in -p rogr es s or fa ilu r e

2 1 h Ma s ter DMA r egis ter t es t in -p rogr es s or fa ilu r e

2 2h Ma s ter in ter ru p t m a sk r egis ter t es t in -p rogr es sor fail

2 3h S la ve in t er ru p t m a sk r egis ter t es t in -p rogr es s orfail

2 5h In ter ru p t vector loa din g in -p rogres s

2 7 h Keyb oa r d con t rolle r t es t in -p rogr es s or fa ilu r e

2 8h CMOS p ower -fa il a n d ch eck su m ch eck s in -progress

2 9h CMOS con fig in fo va lid at ion in -p rogr es s

2 Bh S cr een m em or y t es t in -p rogr es s or fa ilu r e

2 Ch S cr ee n in it ia liza tion in -p r ogr es s or fa ilu r e

2 Dh S cr een r et ra ce t es ts in -p rogr es s or fa ilu r e

2 Eh Sea rch for vid eo ROM in -p rogr es s

30 h Screen b elieved op era b le

3 4h Tim er t ick in ter ru p t t es t in -p rogr es s or fa ilu r e

3 5h Sh u tdown tes t in -p rogres s or fa ilu re

36 h Ga te A20 fa ilu re

3 7h Un exp ected in terr up t in p rot ected m od e

3 8h RAM t es t in -p rogr es s or fa ilu r e a bove a dd res s0FFFFh

Error Messages A-3


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Checkpoin tNo .

Descr ip t ion


3 Ah In ter va l t im er ch a n n el 2 t es t in -p rogr es s orfailur e

3 Bh Tim e-O f-D ay clock t es t in -p r ogr es s or fa ilu r e

3 Ch S er ia l p or t t es t t es t in -p rogr es s or fa ilu r e

3 Dh Pa r allel p or t t es t t es t in -p rogr es s or fa ilu r e

3 Eh Ma th Cop roces sor tes t in -p rogr es s or fa ilu r e

50 h In it ia l M1 42 9

5 2h Dyn a mic Mem ory Con figu r at ion & ch eck external Cache size

53 h Sh a dow BIOS

5 4h Per for m PCI d evice in it ia liza tion

55 h Ch eck CMOS ch eck s u m

5 6h Ch eck CMOS con fig a ga in st a ctu a l

5 7 h En ab le/ d is a b le en ter na l ca ch e

5 Fh In it ia l Pn P d evice n od es

9 0 h En ab le/ d is a b le exter na l ca ch e

70 h For PCI

71 h For PCI

72 h For PCI

73 h For PCI

74 h For PCI

75 h For PCI

7 6h Begin PCI d evices in it ia liza tion

7 7h Con figu res PCI VGA d evices

78 h Excep t VGA

7 9 h Begin PCI s ervice rou tin es

7 Ah PCI Op tion ROM in it ia liza tion

E0h Sh adow PCI n on -VGA op tion ROM

E 1h S h ad ow PCI VGA op tion ROM t o C0 00 s egm en t

E3h Sta r t to fin d PCI op t ion ROM

E4h Begin to s ha dow PCI op t ion ROM

A-4 Error Messa ges


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Checkpoin tNo .

Descr ip t ion


1 Fh Begin t o con figu r es PCI VGA d evices

D1 h Alloca te Sp ace for op tion ROM

Error Messages A-5


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BPC-Doctor Diagnost ics

B.1 Introduct ionThe Extens a S eries Notebooks a re s h ipped with PC-Doctor, a powerfu ldiagnostics tool that can help you determine the hardware configurat ion of a loca l or remote sys tem, ben chm ark it s per forma nce , an a lyze th eperform an ce of al l su bsystem s, an d perform a su ite of in teract ive an dnon -in teract ive tests on at ta ched d evices (su ch a s pr in ters , joyst ick devices,VGA m onitors, S CSI devices, CD-ROM drives). The tes t res u lts a re s tored ina log which can be printed out (by press ing F2 ) or saved in a disk file (bypress ing F3 ).

Features of the d iagnos t ic program are a ccessed throu gh a ser ies of pu ll-down m enu s a nd ba sic keyboard k eys (cur sor keys to move highlighted

pointer, Enter key to select a h ighlighted featu re, Es c key to can cel afu nct ion an d m ove back one level.)

PC-Doctor is typically u ser fr iendly bu t i f you dont u n ders tan d a featu re,context-sens i t ive "h elp" in form ation is a vailab le at a ny t ime b y press in g theF1 fu nction key; pres sing the F1 fu nction key twice access es th e onlineTechn ical Referen ce Man u al for PC-Doctor.

A powerful set of u tilities within PC-Doctor (th at can be ru n locally orrem otely) s implify the tas k of determ ining s ystem configura t ion da ta,al locating an d u sing system mem ory, IRQ an d DMA u se, wh at d evice driversare ins ta lled , what COM and LPT por ts a re ass igned an d wha t por ts a reavailable, identifyin g par titionin g dat a for fixed d isk dr ive(s), deter m iningth e VGA setu p inform ation, reading the s oftware interru pts / in terru ptvectors, etc.

B.2 Start ing PC-DoctorPC-Doctor comes pre-insta lled on you r Exten sa Series Notebook Compu ter.To run th e u t i lity, reboot your comp u ter.

The s ys tem cont inu es th e boot process an d a u tomat ica l ly d isp lays th ePC-Doctor Diagnostics main menu.

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B.3 Mous e Navigat io nYou can u se a m ous e to n avigate thr ough PC-Doctor (al tern ately u se th earr ow keys from th e keyboard). Use the left m ous e bu tton to ch oose objects(men u ent r ies a nd ac t ion codes in squa re bra ckets ). Use the r ight m ousebu t ton as you would the Es c key to tak e you ba ck to your p revious step.Click on th e ? in th e u pper left corn er of th e screen for context-sens it ivehelp Menu s .

B.4 PC-Doctor MenusTher e ar e several select ions availab le from t he men u bar of th e PC-DoctorDiagnos t ics m ain m enu . These inc lude:

Diagnos t ics

In te rac t ive Tes t s

Hardware Info Utility

Quit

B.4.1 Onlin e Help (? )To obta in con text sens it ive h elp from a ny m enu , press F1 . Press ing F1twice (or clicking on th e ques t ion m ark in th e u pper left-ha n d corn er of the

men u ) provides you with complete onlin e docum enta t ion.

B.4.2 Diagnost icsTh e Diagnos tics m enu al lows you to ru n n on-destr u ctive tests with lit t le orno operator interact ion. Options available from the PC-Doctor DiagnosticsMenu inc lude:

Sys tem Tes t - tests a l l m ajor aspects of th e system except th ose foun din Memory, Hard Disk, Floppy Disk, a n d th e Miscellan eous Test

categories.

Mem ory Tes t - tests a ll types of ma in mem ory in t he s ystem includingba se, extended, expan ded, an d u pper m emory block (UMB) mem ory.

Hard Disk Tes t - tes t s a l l ha rd d isk dr ives in the s ys tem tha t a re e i therIDE or provide a BIOS comm an d interface.

Floppy Disk Tes t - tests al l floppy disk d rives in th e system .

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All Tes ts - al lows you to select which t ests to ru n. You ca n also specifyspecial test ing option s. By pres sing F2 , th e followin g option s a reavailable:

Halt On Errors - interr u pts tes t in g if an error is detected.

n Note: Extern al serial an d pa ral lel port test ing requires loopba ck plugs (n otprovided with th is softwar e). External Loopback - tests externa l loopba ck of COM and LPT ports .

You ca n s elect the type of loopba ck a da pter you wan t to u se.

Pa s s Co u n t - se lec ts how ma ny t imes tes t s a re repeated . The h igh-est l im it is 9999 t imes.

Tes t Logging - open s th e Log Options men u th at lets you defin ehow test r esu lts a re printed or s tored to a f ile du ring test ing. By de-fau lt , PC-Doctor produ ces a test r esu lt file at th e end of test ing if anerror was detected.

Swit ch LCD - lets you ch an ge you r video outpu t to eith er th e int er-n al LCD, extern al m onitor, or Sim u lSCAN m ode. If your s ystemdoes not su ppor t S imu lSCAN, both th e extern a l moni tor an d th ebu ilt- in LCD screen go blan k.

Cache Con t ro l - allows you to leave the level 1 a n d level 2 cach e en -abled du r ing m emory tes t ing . This a ss is t s in t racking down ca chetiming issues.

B.4.3 Interact ive Tests MenuIn teract ive tests a re diagnostics that n eed u ser intera ct ion to comp lete.In teract ive tests in clu de:

Keyboard - tes t s th e keyboard keys , LEDs, an d repeat ra te

Video - tests th e cha racter s ets , colors, mon itor, and VGA

Speaker - tests the volu me r espon se a t different frequ encies

Mouse - tes t s th e mou se dr iver, bu t tons , an d fu nct iona lity

Joys t i ck - ca libra tes the joys t ick an d tes ts th e bu t tons . Du r ing thetest, the joystick(s) should first be calibrated. To calibrate the joystick,

move the s t ick to th e extremes in each direct ion. PC-Doctor registersthe coordina te da ta an d a dju s ts the s creen d isp lay accordingly.

Diskette Drive - checks diskette dr ive fu nctiona lity

Maximum Syste m Load - "bu rn -in" tests a system . Th is fun ctions imu la tes th e opera t ing condit ions th a t a re produ ced by opera t ingsys tems s u ch a s OS/ 2 and Wind ows NT. Some sys tems a re notcompa tible with t he Maximu m s ystem Load test .



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Printer Test - tests for th e correct acceptan ce an d execution of comm onprinter con trol comm an ds. Print er test informa tion is s tored in printertest files with a n extension of .PDP .

SCSI Test - PC-Doctor conta in s S CSI device test ing featu res th at work if you h ave a n ASPI or CAM device dr iver loaded . You can select wh ichSCSI h ost ada pter to work with if you ha ve more tha n on e SCSI ada pterp re sen t .

CD-ROM Tes t - tests CD-ROM drives u sin g the Microsoft CD-ROMExtens ions (MSCDEX) and th e sta n dar d CD-ROM device drivers.

B.4.4 Hardware Info Me nuThis men u conta ins fu nct ions tha t de termine an d repor t on th e se tup of thecompu ter. None of th ese fu nctions perform diagnostic tests; however an yerrors are in clu ded in th e reports . The following fun ctions are availab lefrom the Hardware Info menu:

System Configurat ion - lis ts ma in system con figura t ion d ata

Mem ory Conte nts - shows al location and use of system memory

IRQ and DMA use - iden tifies interr u pts for a ll s tan da rd IRQ an d DMAdevices

Device Drivers - sh ows a ll essen t ia l da ta on DOS res ident a ndins tallable device dr ivers

COM and LPT ports - displays informa tion a bout t h e ins tal led serialan d pa ral lel ports . Only ports th at are iden tified by BIOS a re l is ted

Physic al Disk Drives - shows th e bas ic cha racterist ics for eachinsta l led f ixed disk drive including th e conten ts of par t i t ion tab les

Logical Disk Drives - displays informa tion a bout ea ch d rive tha t isavailab le an d h as a disk in i t . If Sta cker or DoubleSpace disk compress ion software h as been ins ta l led , de ta i ls about each "s tacked"or "dou bled" drive is s h own

VGA Info rmat ion - identifies the type of installed VGA chip

Software Interrupts - displays software interrupt vectors and the areaof mem ory they poin t to

SCSI Device s - lis ts in forma tion a bou t SCSI devices a n d interface ca rdsif a CAM or ASPI complian t S CSI device d river is pr esen t

B.4.5 Utility MenuPC-Doctor h as a d edicated men u for u t i li ty fu nctions. These fun ctionsinclude:

Run External Tes ts - run s other pr ogram s from PC-Doctor

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Edit CMOS RAM - gives a ccess to CMOS RAM dat a

File Edito r - allows editing of configuration files

Surface Scan Hard Disk - checks for defects on th e ha rd disk

Benchmark Sys tem - measu res sys tem performan ce

DOS Shell - opens a DOS pr ompt from with in PC-Doctor Terminal - gives a ccess to devices conn ected to a s erial port (su ch as a

modem)

Mem ory Debugger - displays mem ory conten ts in eith er hexad ecima l,dec ima l, or ASCII form

Remot e Opera t ion - enables remote control if available

Tech Support Form - allows you to collect information about thecurrent sys tem

Batte ry Rundown - qu ickly deep-discha rges th e NiMh bat tery of alaptop compu ter.

B.5 Quitt ing PC-DoctorYou can qu it PC-Doctor in th e followin g ways:

Exit (Alt-F4 ) -

Reboot - perform s a cold b oot . PC-Doctor f lu sh es a ll files an d a t temp ts

to flu sh write-caches Park HD - prepares a computer for t rans por t

B.6 Rem ot e Opera t ionThis s elect ion on ly app ears in th e Utili ty men u if you r PC-Doctor su pportsremote control . Th is en try open s th e Remote Opera t ion m enu if you ar e notyet onlin e, or closes th e rem ote conn ection if th e system is a lread y remotelycontrolled.

Wh en PC-Doctor is opera ted rem otely, it is poss ible to per form a rem otereboot. Remote rebootin g is a com plicated p rocedu re th at r eloads t h eoperat ing system an d m ak es ch an ges to CMOS RAM and configura t ion fi les .For fu rth er in form ation on r emote operat ion s, refer to onlin e docum enta t ionor h elp.



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Printed in U.S.A.

Service Manual -Acer Extensa 510sg

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