Lg Lh w750!1!2 3ta Lhs w75 Tac Taf Tal Tar Taw Acc75t Sm

WIRELESS DVD RECEIVER SYSTEMSERVICE MANUAL

MODEL : LH-W750,1,2,3TALHS-W75TAC, LHS-W75TAF, LHS-W75TAL, LHS-W75TAR,LHS-W75TAW, ACC75T

MO

DEL: LH-W

750,1,2,3TALHS-W

75TAC, LHS-W75TAF, LHS-W

75TAL, LHS-W75TAR, LHS-W

75TAW, ACC75T

SE

RV

ICE

MA

NU

AL

1-1

[CONTENTS]

SECTION 1. GENERAL• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

SECTION 2. AUDIO PART• AUDIO TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

• SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

• PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

SECTION 3. DVD & AMP PART

• ELECTRICAL TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

• DVD PART SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

SECTION 4. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

SECTION 5. SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

SECTION 6. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

1-2

SERVICING PRECAUTIONSNOTES REGARDING HANDLING OF THE PICK-UP1. Notes for transport and storage

1) The pick-up should always be left in its conductive bag until immediately prior to use.2) The pick-up should never be subjected to external pressure or impact.

2. Repair notes1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and

impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/ordamage to the printed-circuit board.

3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reasonthe adjustment point and installation screws should absolutely never be touched.

4) Laser beams may damage the eyes!Absolutely never permit laser beams to enter the eyes!Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.

5) Cleaning the lens surfaceIf there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as usedfor camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot-ton swab should be used, taking care not to distort this.

6) Never attempt to disassemble the pick-up.Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too muchof this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.

Storage in conductive bag Drop impact

NEVER look directly at the laser beam, and don’t let contact fingers or other exposed skin.

Magnet

How to hold the pick-up

Conductive Sheet

Cotton swab

Pressure

Pressure

SECTION 1. GENERAL

1-3

NOTES REGARDING COMPACT DISC PLAYER REPAIRS1. Preparations1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components

are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, componentscan be damaged, and for that reason components should be handled with care.

2) The pick-up is composed of many optical components and other high-precision components. Care must betaken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnet-ism is present, or where there is excessive dust.

2. Notes for repair1) Before replacing a component part, first disconnect the power supply lead wire from the unit2) All equipment, measuring instruments and tools must be grounded.3) The workbench should be covered with a conductive sheet and grounded.

When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This isbecause there is the possibility of damage by static electricity.)

4) To prevent AC leakage, the metal part of the soldering iron should be grounded.5) Workers should be grounded by an armband (1M Ω)6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent

static electricity changes in the clothing to escape from the armband.7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.

Resistor(1 Mohm) Conductive

Sheet

Resistor(1 Mohm)

Armband

1-4

ESD PRECAUTIONS

Electrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such componentscommonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integratedcircuits and some field-effect transistors and semiconductor chip components. The following techniques shouldbe used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain offany electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear acommercially available discharging wrist strap device, which should be removed for potential shock reasonsprior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surfacesuch as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" cangenerate electrical charges sufficient to damage ESD devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDdevices.

6. Do not remove a replacement ESD device from its protective package until immediately before you areready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together byconductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective material to the chassis or circuit assembly into which the device will by installed.

CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHERSAFETY PRECAUTIONS.

8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motionsuch as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gener-ate static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, ISINTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THESERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.

1-5

GENERALPower supply Refer to main labelPower consumption Refer to main labelWeight 3.9 kgExternal dimensions (W x H x D) 430 x 54 x 350 mmOperating conditions Temperature: 5°C to 35°C, Operation status: HorizontalOperating humidity 5% to 85%

CD/DVD

Laser Semiconductor laser, wavelength 650 nmSignal system PAL 625/50, NTSC 525/60Frequency response (audio) 200 Hz to 20 kHzSignal-to-noise ratio (audio) More than 75 dB (1 kHz, NOP, 20 kHz LPF/A-Filter)Dynamic range (audio) More than 70 dBHarmonic distortion (audio) 0.5 % (1 kHz, at 12W position) (20 kHz LPF/A-Filter)

VIDEO

Video input 1.0 V (p-p), 75 Ω, negative sync., RCA jack x 1/ SCART (TO TV)Video output 1.0 V (p-p), 75 Ω, negative sync., RCA jack x 1/ SCART (TO TV)S-video output (Y) 1.0 V (p-p), 75 Ω, negative sync., Mini DIN 4-pin x 1

(C) 0.3 V (p-p), 75 ΩComponent Video output (Y) 1.0 V (p-p), 75 Ω, negative sync., RCA jack x 1

(Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 1

TUNER

FMTuning Range 87.5 - 108.0 MHz or 65.0 - 74.0 MHz, 87.5 - 108.0 MHzIntermediate Frequency 10.7 MHzSignal-to Noise Ratio 60 dB (Mono)Frequency Response 140 - 10,000 Hz

AM [MW]Tuning Range 522 - 1,620 kHz or 520 - 1,720 kHzIntermediate Frequency 450 kHz

AMPLIFIER

Stereo mode 100W + 100W (6Ω at 1 kHz, THD 10 %)Surround mode Front: 100W + 100W (THD 10 %)

Center*: 100WSurround*: 100W + 100W (6Ω at 1 kHz, THD 10 %)Subwoofer*: 200W (4Ω at 30 Hz, THD 10 %)

Input AV1, OPTICAL AUDIO, MIC Jack(Ø3.5mm)Output S-VIDEO, MONITOR, PHONRD : (32Ω, 10.V)

TRANSMITTER Transmission Output : 2.4GHz, Power Supply : DC 7VReception Output : 2.4GHz

SPEAKERS

Front Speaker Centre speaker Subwoofer Wireless SpeakerType 1 Way 2 Speaker 1 Way 2 Speaker 1 Way 1 Speaker 1 Way 2 SpeakerImpedance 6 Ω 6 Ω 4 Ω 6 ΩFrequency Response 150 - 20,000 Hz 150 - 20,000 Hz 40 - 1,500 Hz 150 - 20,000 HzSound Pressure Level 86 dB/W (1m) 86 dB/W (1m) 82 dB/W (1m) 86 dB/W (1m)Rated Input Power 100 W 100 W 200 W 100 WMax. Input Power 200 W 200 W 400 W 200 WNet Dimensions(WxHxD) 270 x 1190 x 270 mm 500 x 83 x 105 mm 300 x 440 x 410 mm 270 x 1190 x 270 mmNet Weight 2.9kg 1.2kg 8.5kg 2.9kg

(* Depending on the sound modesettings and the source, theremay be no sound output.)

SPECIFICATIONS

2-1

SECTION 2. AUDIO PARTAUDIO TROUBLESHOOTING GUIDE

1. POWER SUPPLY CIRCUIT

2-2

2. FRONT CIRCUIT (1/2)

PIN3PIN4PIN9

: -27.5 FL-: -32.4 VKK

: -23.7 FL+: +5.0

CN902 CN902

2-3

3. FRONT CIRCUIT (2/2)

2-4 2-5

WIRING DIAGRAM

WIRELESS

OPTICALIN

SCART JACK

OPTION SW

AV1,2COMPONENT

MONITOR OUTS-VIDEO OUT

TUNER

SPEAKER TERMINAL

MAIN PCB AMP PCB

SMPS PCBMD

FRONT PCB

FRONT PCB

MIC&USB PCB VFD

H/P JACKUSB JACK

MICJACK

MICJACK

CN001 PN005

CN350

PN801

6PIN5PIN

23PIN 11PIN 24PIN 23PIN

14PIN 14PIN

30PIN

PN103 PN104

PN001PN002

PN902 PN303

PDM01 PDM03

PN105 PN302

NOTES) WarningNOTES) Parts that are shaded are criticalNOTES) With respect to risk of fire orNOTES) electricial shock.

2-6 2-7

BLOCK DIAGRAM

Audio s/wBu 4052

ADCCS 5340

Fs = 48kHzFx

DITCS 8406(slave)

PS 9818(PWM)

Video S/WNJM 2279out(CVBS-S/W)

+

SlideS/W

VideoS/W

NJM2279(Y-S/W)

USB Controller

ALCBA 3308

CS 5340ADC

DVD BLOCK(ES 6698)

Mic Volume : OSD CTL

MIC1

MIC2

Optical

Tuner

AV1

AV2(option)

Monitor Out

S-AV

Component

Scart(option)

USB Port

MIC

7VWireless

L

R

V

L

R

V

G

B

R

L

R

L

R

G

B

R

8

16

V

SW1, SW2,MUTE1(A)

Pb(R) ,Pr(R)

CTL-A/B(B)

VIDEO-SW(A)

Tuner-L/R

AV1-L/RAV2-L/R

SC

AR

T-L/R

AV1-CVBSAV2-CVBSMonitor outSCART-CVBS out

CY

SCART-IDSCART-FB

/RST-AD

AD-DATAAD-BCKAD-LRCK

(A)

SPDIF 12.288MHz

LRCKBCK

ADAT 0,1,2,3(FL/R,RL/R, C/SW)

MUTETR Mute

/RST-AD(A)

Mixing

ALRCK,ABCKMCLK,AMDAT

SPDIF

8406_SDI,8406_SDO8406_CLK,8406_CE8406_RST,8406_INT

H/P

Y(G)

YY Y

CDVD-CVBS

CVBS

(A)(T_CE,T_DO,T_DI,T_CLK,T_RDS_DATA,T_RDS,CLK)

(A)AUDIO MICOM

LC876B48

(PIN MAP)

SST

OPTION

FRONT

STA510A

AMP IC

MIC1_DET(A)

MIC2_DET(A)

(A) HP_DET

AMPDNTH_W

FAN1

FAN2

(A)FAN1_CTL

FAN2_CTL

OPTION

2-8 2-9

SCHEMATIC DIAGRAMS 1. POWER SCHEMATIC DIAGRAM_1

A B C D E F G H I J K L M N O P Q R S T


2-10 2-11

2. POWER SCHEMATIC DIAGRAM_2


2-12 2-13

3. MICOM SCHEMATIC DIAGRAM


2-14 2-15

4. FRONT SCHEMATIC DIAGRAM


2-16 2-17

5. DSP&AMP SCHEMATIC DIAGRAM


2-18 2-19

6. I/O SCHEMATIC DIAGRAM


2-20 2-21

7. MAIN MIC SCHEMATIC DIAGRAM


2-22 2-23

PRINTED CIRCUIT BOARD DIAGRAMS1. MAIN/DVD P.C. BOARD DIAGRAM ( TOP VIEW )

2-24 2-25

2. MAIN/DVD P.C. BOARD DIAGRAM ( BOTTOM VIEW )

2-26 2-27

3. FRONT MIC P.C. BOARD

6870R7507AA

2-28 2-29

4. SMPS P.C. BOARD

LOCATION GUIDE


5. JACK P.C. BOARD( 5 TOOL )

LOCATION GUIDE


( 7 TOOL )

( TOP VIEW )

( BOTTOM VIEW )

2-30 2-31

6. AMP P.C. BOARD( TOP VIEW ) ( BOTTOM VIEW )

3-1

ELECTRICAL TROUBLESHOOTING GUIDE1. System operation flow

Power On

No

Yes

Yes

Yes

No

No

No

Show LOGO

Tray Closed?

Tray Close to Closed position

SLED Moves to Inner Position

RecieveOPEN/ CLOSE

Key?

ReceiveCLOSE Key?

1. Stop Playback & Open Tray2. Display tray open message & LOGO

1. Execute Pressed Key & IR Key2. Systemoperati on Routi ne Loop

1. Judge whether have disc and disc type2. Jump to related disc reading procedure

SLED at InnerSide?

1. 8082 initializes SERVO, DSP & RISC registers2. Write RISC code to SDRAM3. Reset RISC

SECTION 3. DVD & AMP PART

3-2

2. Test & debug flow

TEST

Check the POWER PARTNo

Yes

No

Yes

No

No

Yes

Yes

Check the POWER PART

Check the regulators or diode.

1. Check 27MHz system clock.2. Check systemreset circuit.3. Check FLASH R/Wenable signal PRD, RWR.4. Check FLASH Memory related circuit.

Check theAC Vol tage

Power PCBA (110Vor 220V)

Switch on the Power PCBA

Are 3.3V and 5V DCoutputs normal on main

PCBA?

UpdateFLASH

successfully?

Replace FLASH

A

Is the DCVoltage outputs OK?

(-44V, -22V, -26.5V, ±12V, 5.6V, 3.3V, 5V,

7V, 8V)

3-3

A

, 115.

3-4

B

1.

2.

3-5

C

ES6698.

ES6698. ES6698.

3-6

D

3-7

E

Check connection between IC300 ABCK, ALRCK,ASDAT

Check the related circuit of PWM.(Check Audio out Pins52, 54, 55, 59,62, 68

NormalPWM IC out?(IC301)

PWM ICreceived correct data

stream?

Check Digital Amp circuit(IC701, IC702, IC703, IC704)

3-8

3. AUDIO µ-COM Circuit(DVD & AMP)

YES

Does CD/DVD appearat FLD?

Does AV1, TV Audio, AV1 opt.and FM 87.5 appear at FLD

OK

Does Loading appearat FLD?

POWER ON

YES NO

YES

Does no Disc or Timeappear at FLD?

NO YES

NO

NO

NO

NO

NO

NO

Does it appear DVD Errorat FLD?

Refer to SMPS.

Refer to oscillator Circuit.

Check IC101 ResetWaveform.

Check 3.3V line.

Check Power sectionCircuit.

NO

Check power part of MainB/D.

Check oscillator of X101.

Check if IC101 Pin80is high.

Check if IC101 Pin32, 51,80 are high(5V).

Check if IC101 Pin96is high.

Replace IC101.

NO

NO

Check if DVD an AudioMicom Insert is OK.

Check Power.

YES

Check DVD Module.

YES

Check SMPS.

YES YES

YES

YES

YES

YES

YES

3-9

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING

1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL

1) ES6698FD main clock is at 27MHz(X501)

3.8V, 27MHz

FIG 1-1

2) ES6698FD reset is high active.

PWR_CTL(SYSTEM µ-COM)IC501 PIN83)

5.2VA

Power Cord in

M_RESET(IC501 PIN 207)

URST(IC501 PIN 188)

FIG 1-2

3-10

2. SDRAM CLOCK

1) ES6698FD main clock is at 27MHz(X501)

(IC503 PIN 38)

DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V

FIG 2-1

3) Flash R/W enable signal during download(Downloading)

FRD(IC500 PIN 28)

FWR(IC500 PIN 11)

FIG 1-4

3-11

3. TRAY OPEN/CLOSE SIGNAL

1) Tray open/close waveform

OPEN((PDM03 PIN7)

CLOSE(PDM03 PIN8)

TROPEN(IC402 PIN 4)

TRCLOSE(IC402 PIN 5)

FIG 3-1

2) Tray close waveform

OPEN((PDM03 PIN7)

CLOSE(PDM03 PIN8)

TROPEN(IC402 PIN 4)


FIG 3-2

3-12

4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)

FMSO(2.0V/1.4V/1.0V)(IC501 PIN 19)

STBY(5V) – (IC401 PIN 50)

SL+(4.7V/3.6V/1.9V)(IC404 PIN 12)

SL-(5.3V/3.7V/2.5V)(IC404 PIN 11)

FIG 4-1

3) Tray open waveform

OPEN(PDM03 PIN7)

CLOSE(PDM03 PIN8)

TROPEN(IC402 PIN 4)


FIG 3-3

3-13

5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION)

FOSO(1.5V/1.4V/1.3V)(IC501 PIN 12)

F+(4.0V/3.6V/3.2V)(IC404 PIN 14)

F-(4.0V/3.6V/3.2V)(IC404 PIN 13)

FIG 5-1

6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)

MDI1(0V/180mV)(IC401 PIN 26)

LD01(5.0V//3.5V)IC401 PIN 20)

LD02(5.0V/3.6V)(IC401 PIN 21)

FIG 6-1

3-14

F+(IC404 PIN 14)

FE(IC401 PIN 40)

RFL(IC401 PIN 19)

FIG 7-2 (DVD)

7. DISC TYPE JUDGEMENT WAVEFORMS

F+(IC404 PIN 14)

FE(IC401 PIN 40)

RFL(IC401 PIN 19)

FIG 7-1 (DVD)

3-15

F+(IC404 PIN 14)

FE(IC401 PIN 40)

RFL(IC401 PIN 19)

FIG 7-3 (CD)

F+(IC404 PIN 14)

FE(IC401 PIN 40)

RFL(IC401 PIN 19)

FIG 7-4 (CD)

3-16

FE(IC401 PIN 40)

FOSO(IC501 PIN12)

F+(IC404 PIN 14)

F-(IC404 PIN 13)

FIG 8-2 (CD)

8. FOCUS ON WAVEFORMS

FE(IC401 PIN 40)

FOSO(IC501 PIN12)

F+(IC404 PIN 14)

F-(IC404 PIN 13)

FIG 8-1 (DVD)

3-17

9. SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION)

DMSO(1.4V/1.8V)(IC501 PIN 18)

SP-(3.6V/2.4V)(IC404 PIN 18)

SP+(3.6V/4.8V)(IC404 PIN 17)

FIG 9-1

10. TRACKING CONTROL RELATED SIGNAL(System checking)

TE(IC401 PIN 39)

TRSO(IC501 PIN 13)

T-(IC404 PIN 16)

T+(IC404 PIN 15)

FIG 10-1(DVD)

3-18

11. RF WAVEFORM

RFOP(2.3V/1.1V)(IC401 PIN 55)

RFON(0.8V/2.0V)(IC401 PIN 57)

FIG 11-1

TE(IC401 PIN 39)

TRSO(IC501 PIN 13)

T-(IC404 PIN 16)

T+(IC404 PIN 15)

FIG 10-2(CD)

3-19

12. ES6698FD VIDEO OUTPUT WAVEFORMS

1) Full colorbar signal(COMPOSIT)

(IC501 PIN 110)

FIG 12-1

2) Y

(IC501 PIN 113)

FIG 12-2

3-20

1) Audio L/R

FIG 13-1

13. AUDIO OUTPUT FROM PWM IC

(IC301 PIN 68, 49)

2) Audio related Signal

ASDAT0(IC501 PIN 117)

ABCK(IC501 PIN 123)

ALRCK(IC501 PIN 116)

ASDATA3

FIG 13-2

3-21

1)

• R310 → TP301orR311 TP302

2)

• R320 → TP311orR321 TP312

3)

• R312 → TP303orR313 TP304

4)

• R318 → TP307orR319 TP308

5)

• R314 → TP305orR315 TP304

6)

• R318 → TP309orR319 TP310

14. DVD & AMP WAVEFORMS


3-22 3-23

DVD PART SCHEMATIC DIAGRAMS1. DVD MPEG & DSP SCHEMATIC DIAGRAM


3-24 3-25

2. RF & SERVO SCHEMATIC DIAGRAM

3. FRONT MIC SCHEMATIC DIAGRAM


3-26 3-27

3-28 3-29

4. USB CONTROLLER SCHEMATIC DIAGRAM


5. AMP SCHEMATIC DIAGRAM ( 5TOOL )


3-30 3-31

6. AMP SCHEMATIC DIAGRAM ( 7TOOL )


3-32 3-33

• CABINET AND MAIN FRAME SECTION

250463

463

463

463

283

300

465

279

463463

463

A46

A26

A53

A43

A50

A45

A47

A44

274452

452

275

261

261

261

OPTIONAL PART

JACK OPTION

NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.

4-1 4-2

SECTION 4. EXPLODED VIEWS

• DECK MECHANISM EXPLODED VIEW

026

001002

003

A01

020

018

014

013

017

435012

019

012

440

015B

015A

015

016

A02

439

012A

012A

010

432

030

025

024

431

435

430

021

035A

439

035

036

A03

A26

NSP : Non SVC Parts

LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKSA26 6721RJ0870E DECK ASSEMBLY,AUDIO HOME THEATER LH-TK750/550/250

A01 4861R-0016B CLAMP ASSEMBLY DISC DP7 - SH

A02 3041R-T001A BASE ASSEMBLY MAIN DP-9T-ESS

A03 3041R-T001B BASE ASSEMBLY SLED DP-9T-DI -ESS-SAMSUNG

001 3300R-0547A PLATE CLAMP NSP

002 5016H-1016B MAGNET CLAMP(LDM-R608,10*5,1*1.5T) NSP

003 4860R-0021A CLAMP UPPER DP7 NSP

010 6850R-JW14B CABLE,FLAT P=1.0 FFC UL2896(0.035X0.7) 23

012 5040R-0083A RUBBER DVD DP-6, DP-8 FRONT RIGHT 20

012A 5040R-0110A RUBBER DVD REAR DP8 RIGHT 20 OTHER BL

013 4400R-0006B BELT DECK/MECHA DP2-5, DP7C,DP7A OT

014 4470R-0154A GEAR DECK/MECHA DP8 PULLEY MOLD

015 4681R-A015A MOTOR ASSEMBLY DECK/MECHA LOADING DP-9 SH

015A 4680R-E008A MOTOR(MECH) FEEDING RF-300EA-1D390 MABUCHI NSP

015B 4560R-0008A PULLEY MOTOR

016 6871R-9294A PWB(PCB) ASSEMBLY,TOTAL DP-9C LOADING

017 4470R-0176A GEAR DVD DP-9 LOADING MOLD

018 4974R-0067A GUIDE DVD DP-9C UP/DOWN MOLD

019 3210R-M008A FRAME DP-9C UP/DOWN MOLD

020 3040R-M066A BASE MAIN DP-9T MOLD NSP

021 4681R-B009B MOTOR ASSEMBLY DECK/MECHA DP9 FEEDING

024 4470R-0179A GEAR DVD DP-9 PINION MOLD

025 4470R-0178A GEAR DVD DP-9 MIDDLE MOLD

026 3390R-0033A TRAY DVD DP-9T(9T-SLIM) DISK MOLD

030 4470R-0180A GEAR DVD DP-9 RACK MOLD

035 6871R-9295B PWB(PCB) ASSEMBLY,TOTAL DP-9T FEEDING

035A 6850R-GK22Y CABLE,FLAT P=1.0 FFC UL2896(0.05X0.65) 11

036 4370R-0136A SHAFT DVD PU, DR-02 SUS-420J2 OTHER

430 1SZZR-0064B SCREW,DRAWING + 1 D1.7 L7.0 SWCH18A/BZN DP8

431 1SZZR-0062A SCREW,DRAWING + 1 D1.7 L4.5 SWCH18A/NI DP8 P

432 1SZZR-0072A SCREW,DRAWING + 1 D1.7 L4.5 SWRCH18A/FZY DP8

435 1SZZR-0011A SCREW,DRAWING MACHINE

439 1SZZR-0075A SCREW,DRAWING + 1 D1.7 L10.0 SWRCH18A/FZW DP

440 1SZZH-1007B SCREW,DRAWING + D2.0 6MM SWRCH16A/ZNBK 4MM 1

4-3 4-4

4-5

• Packing Accessory Section

BATTERY808

FILTER(CIRC)826

MICRO PHONE827

INSTRUCTION ASSEMBLY801

REMOCON900

811 PLUG ASS'Y 1WAY(YELLOW)

824 ANTENNA LOOP(AM)

825 ANTENNA (FM)

828 AC ADAPTOR

BAG804

PACKING, CASING803

BOX802

PACKING, CASING803

OPTIONAL PART

5-1

SECTION 5. SPEAKER SECTION

• CENTER SPEAKERMODEL : LHS-75TAC

A700

758

757

756

755

755

755

751

751

754

754

750

754

5-2

• FRONT SPEAKERMODEL : LHS-75TAF

A800A800A

850 852

853

854

883

882

850

881 885

886 893 894

892

891

890

889

888

887

884

851

858

859

856

855857

5-4

• REAR SPEAKERMODEL : LHS-75TAL/R

850

851

852

853

854

850

882

899

898

889

890

897

892

891895

896

894893

883

855

856857

859858

860

881A

884A

888A

A80SEN

A80SML

PWRCRD

A80RAM

A80LAM

A800WR

A800WLA801WR

A801WL

887A

5-6

• SUB WOOFER SPEAKERMODEL : LHS-75ATW

953

954

961

950

952

955

951

956

957

A900

5-7

• TRANSMITTERMODEL : ACC75T

380

382

384

(With LENS)

A80M

A300

A80S

480

5-8

• WIRElESS PART1. SMPS SCHEMATIC DIAGRAM

LHS

-W75

TA_S

MP

S

+33VST-

BY

P-S

EN

S

GN

D

GN

D

+3.3

V

21

AC

100-

240V

/50,

60H

z

21

P-C

OR

D

2

1

N.C

TIN

_WIR

E

TIN_WIRE

1/50V

KR

C10

3M

EE

R35

34V

T-75

9TA

3

2

1

KIA

7805

1N40

04

10/50VTIN_WIRE

21 3 4

KR

C10

2M

1/50V

21

2.2K

10K

10K

KR

C10

2M

12K

470

332(M)

EG

1MG

F-R

1

0.47/50

1SS133

10K

_1W

EG

1MG

F-R

1

KA

431

331/400V

N.C

GN

DSYNC

FBV

CC

DR

AIN

5

4

3

2

1

FSC

Q12

65R

T

471/

1KV

N.C

18V/1W

220UF/10V

470

KIA

78R

33

1000UF/10V

SB

140

1/50V

470

200

1.2K

18K

270K

43 2

1

LTV

817

1000UF/50V

1000UF/50V

(10A

/200

V)

FFP

F10U

20S

47uF/50V

633-

088D

20uH

3.3K

/2W

103/630V

10

N20

(0.8

A)

ICP

-N20

1SS

133

15K

N.C

561/1KV(F)

3.3K

BE

AD

56K/2W

10E

G1M

GF-

R1

N.C

4.7K

EG1MGF-R1

331/400V

47uF/100V

600V

/4A

GB

L-06

N.C

223(

M)

100u

F/45

0V

5ohm

331/400V

331/400V

435D

0.1u

F/27

5V

VT-

759T

A

VT-

759T

A

1.5M

(1/2

W)

0.1u

F(X

CA

P)

FUS

E_H

OLD

SV

C68

1D-1

0A

T3.1

5L_2

50V

TIN

_WIR

EFUS

E_H

OLD

43

21

PN

903

PN

904

W90

2

W905

C926

Q90

3

T901

IC90

2

D92

6

C925D902

CN

901

Q90

1

C910

CN

902

R919

R920

R917

Q90

2

R921

R924

C916

D91

4

C920

D903

R92

5

D91

3

IC94

1

C934

C917

IC90

1

C91

5

ZD901

ZD903

C932

R92

2

IC92

2

C922

D92

2

C941

R94

1R

945

R94

4R

943

R92

6

PC

910

C923

C933

D92

3

C924

L921

R91

6

C911

R91

5

F903

D90

1

R931

ZD902

C918

R918

FB90

1

R911

R91

2D

912

C914

R942

D911

C903

C913

BD

901

L923

C91

2

C90

4

TH90

1

C902

C901

CM

902

LF90

2

LF90

1

R90

0

CM

901

FH90

2

VR

901

F901

W90

1

FH90

1

5-9

• WIRElESS PART2. TX SCHEMATIC DIAGRAM

TX_S

CH

EM

ATI

C

AC

C75

T/A

CC

75TK

CN

103

: 16

PIN

CO

NN

EC

TOR

CN

102

: 14

PIN

CO

NN

EC

TOR

CN

101

: 10

PIN

CO

NN

EC

TOR

Not

e.

XH

S-W

759T

A

BLUE LED PORT

BLU

E L

ED

PO

RT

BLUE LED PORT

RED LED PORT

RE

D L

ED

PO

RT

RED LED PORT

FL-

FL+

FR-

FR+

NA

ME

MO

DE

L

00

00

00

00

00

00

07654321

11 1

11 1

11

11

11

ID2

ID1

IDOM

OD

EL

IDN

O.

+3.3V

+3.3

V+3

.3V

+3.3

V

+3.3

V

+5V

RE

SE

T

SDATA0

SD

ATA

0

SDATA0

SCLK

SC

LK

SCLK

LRCK

LRC

K

LRCK

MCLK

MC

LK

MCLK

SW

ITC

HR

ES

ET

SPEAKER OUTPUTDVD RECEIVER FROM

GN

D

22K

150

104

18K

22K

18K

22K

N.C

1K1K 1K

104

1K

8.2V

DC

_JA

CK

1SS133

101

18K

18K

101

22K

104

104

!K

101

150

104103

104

1K 1K

KTA

1273

XC

6203

E33

2PR

22K

2.2K

104

22K

22K

101

1K

HB1M-102J

104

N.C

220/10

10/16

47/16

10K

1K

(DU

AL

LED

)S

AB

5370

1/50

10/16

104

KR

A10

3S

1SS133

KR

C10

3S4.7M

1K

TAC

T_S

/W

KRC103S

180

47

10K

22K

22K

2.2P

2.2P

TLC

274

104

10K

2SC

2412

KR

104

10/16

103

10K

LG-V

ISIO

N.W

TR05

01

10K

104

HB1M-102J

N.C

HB

1M-1

02J

HB1M-102J

N.C

N.C

N.C

3.3V

HB

1M-1

02J

10K

10K

10K

470

HB1M-102J

10K

104

22K

HB1M-102J

10/1

6

10K

10K

3.3K

HB

1M-1

02J

HB

1M-1

02J

XB

1117

P50

1FR

HB

1M-1

02J

PC

M18

03

104

10K

10/16

HB

1M-1

02J

4.7/16

21 3

GN

DV

OU

T

VIN

12

3

21

3B

R

21 3 54

14

13

12

11

10

9

87

6

5

4

1

2

3

OUTPUT4

4-

4+

VEE

3+

3-

OUTPUT3

OUTPUT1

1-

1+

VCC

2+

2-

OUTPUT2

GPA8_REMOTE_CONTROLLER

GP

B11

/CH

_ID

1

GP

B8/

PW

R_C

TRL0

NO_CONNECT

GP

B9/

CH

_ID

0

GPA6/SPDIF_IN

GPA7/SPDIF_OUT

AGND

VCC33

AGND

VCC33

AGND

RESET

TDI

JTAG_RST

TMS

TCK

TDO

DGND

J39

J37

J20

J15

J36

J21

J04

J03

J02

J01

J05

J10

J11

J00

GP

A0/

AU

D_S

CLK

GP

A1/

AU

D_L

RC

K

GP

A2/

AU

D_D

ATA

GP

A3/

AU

D_M

CLK

GP

B0/

SP

K_I

D0

GP

B1/

SP

K_I

D1

GP

B2/

SP

K_I

D2

GP

B6/

LED

0

GP

B5/

MO

DE

L_ID

2

GP

B4/

MO

DE

L_ID

1

GP

B3/

MO

DE

L_ID

0

GP

B7/

LED

1

GP

B10

/PW

R_S

EN

S

J06

J07

J08

J09

J24

J25

J26

J27

J28

J29

J30

J31

J32

J33

J34

J35

EEPROM_ENB

EXT_UXTALIN

DGND

USBDPLUS

USBDMINUS

SDA

SCL

DGND

J38

J18

J14

J17

J16

J22

J23

J13

J12

J19

4039

3837

3635

3433

3231

3029

2827

26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11

109

87

65

43

21

VIN

VO

UT

GN

D12

3

TES

TRL

VV

DD

BC

K

DO

UT

DG

ND

V

SC

KI

OS

R

FMT0

FMT1

MO

DE

2

MO

DE

1

LRC

K

FSY

NC

PD

WN

AG

ND

V

2V

1V

CC

RE

F

RE

F

IN IN

20 19 18 17 16 1520 19 18 17 16 15 14 13 12 1110987654321

R13

2

R17

9

C11

3

R14

3

R13

1

R14

1R

129

W102

R18

2

R183

R18

4

C11

2

R18

5

ZD10

1

JK10

1

D101

C110

R14

2

R14

4

C111

R13

0

C11

5

C11

4

R145

C108

R15

5

C165C162

C179

R148 R147

Q10

2

IC10

1

R15

0

R151

C170

R13

6

R135

C109

R146

FB101

C120

D10

5

C102

C104

C103

R172

R13

9

LD10

2

C101

C119

C118

Q10

5

D104

Q10

4

R137

R10

9

SW

101

Q101

R106

R138

R108

R13

4

R13

3

C11

7

C11

6

JK10

2

IC10

8

C13

1

R171

Q10

3

C132

C169

C161

R170

IC10

3

R11

6

C16

8

FB105

W103

FB10

2

FB111

R12

1

R12

0

R11

9

ZD102

FB10

3

R125

R127

R126

R18

1

FB106

R101

C133

R100

FB104

C16

7

R15

9

R15

8

R18

0

FB10

7

FB10

8

IC10

2

FB11

0

IC11

0

C194

R173

C164

FB10

9

C166

5-10

• WIRElESS PART3. RX SCHEMATIC DIAGRAM

LHS

-W75

TA_R

X

1:2_

1CH

AN

NE

L_O

UTP

UT

LRC

KB

CK

DA

TA0

CN

211

: 16

PIN

CO

NN

EC

TOR

CN

210

: 14

PIN

CO

NN

EC

TOR

CN

209

: 10

PIN

CO

NN

EC

TOR

12.2

88M

Hz

12.288MHz

+32.

5V

R_C

H S

PK

.

L_C

H S

PK

.

ON

LY R

IGH

T C

HA

NN

EL

CH

IP

SDA1

SCL1

SDA2

SD

A2

SCL2

SC

L2

ST-

BY

ST-

BY

ST-

BY

P-S

EN

SG

ND

+3.3

V

RE

D_L

ED

BLU

E_L

ED

Not

e.

P-S

EN

S

P-S

EN

S

P-SENS

LED

PC

B

+3.3V

+3.3

V+3

.3V

+3.3

V

+3.3V

+3.3V

RESET

SDA

SCL

+3.3

V

SW

ITC

HR

ES

ET

GN

DSP

K-

SP

K-

SP

K+

SP

K+

224

1SS

133

1SS

133

3.3V

N.C

104

N.CN.C104104

4P_2

.5m

m

N.C

N.C

N.C

N.C

220

104

100

100

100

BE

AD

N.C

N.C

BEAD BEAD

BEAD

BE

AD

BE

AD

BE

AD

N.C20/3216

1000

/50

BE

AD

331

BEAD

15uH

BE

AD

N.C

104(

M)

104(

M)

5.6 5.6

104 104 N.CN.C

N.CN.C N.C

N.C

474(M) N.C

N.C

3-2P

_3.9

6mm

2P_3

.96m

m

N.C

100/

50224

0

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

100/

50

N.C

BE

AD

BE

AD

22/1

6

N.C

10K

10K

3.3K

N.C

N.C

N.C

N.C

1K

3.3K

10K

N.C

N.C

Dual_LED

N.C

N.C

10

3.3K

82

104

104

272

N.C

2SC

2412

KR

N.C

LG-V

ISIO

N.W

TR05

01

N.C

221

272

N.C

N.C

1SS

133

10K

N.C

N.C

N.C

3.3/

50

KR

A10

3S

3P_2

mm

_AN

GLE

100

100

100

104

104

104

104

10K

3P_2

mm

104

104

N.C

N.C

N.C

2SC

2412

KR

10K

N.C

N.C

10K

104

104

KR

C10

3S

STA

328

470

104

2.2K

N.C

TIN_WIRE

TIN_WIRE

0

3.3V

470

100/16

100/

16

TIN

_WIR

E

N.C

N.C

N.C

N.C

N.C

TIN_WIRE

TIN

_WIR

E

N.C

PIN_HEARDER

TIN_WIRE

21 3 4

432 1

21 321 3

21

GN

DS

UB

PLL

_FIL

TER

SD

I_12

BIC

LKI

LRC

KI

GN

D3

VD

D3

VR

EG

2

VS

IG

VD

D3

VR

EG

1

GN

D

GN

DC

LEA

N

N.C

.

GN

D1A

GN

D1B

VC

C1B

VC

C2A

GN

D2A

GN

D2B

N.C

.

N.C

.

N.C

.

CO

NFI

G

RE

SE

T

SC

L

SD

A

XTI

GN

DA

VD

DA

OU

T1A

VC

C1A

OU

T1B

OU

T2A

VC

C2B

OU

T2B

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19181716151413121110987654321

21 3B R

GPA8/MONO PARALLEL MODE

SDA1

SCL1

GP

B11

/N.C

GP

B9/

N.C

GP

B5/

N.C

GP

B4/

SD

A2

GP

B3/

SC

L2

GP

B8/

PW

R_C

TRL0

NO_CONNECT

GPA6/SPDIF_IN

GPA7/SPDIF_OUT

AGND

VCC33

AGND

VCC33

AGND

RESET

TDI

JTAG_RST

TMS

TCK

TDO

DGND

J39

J37

J20

J15

J36

J21

J04

J03

J02

J01

J05

J10

J11

J00

GP

A0/

AU

D_S

CLK

GP

A1/

AU

D_L

RC

K

GP

A2/

AU

D_D

ATA

GP

A3/

AU

D_M

CLK

GP

B0/

SP

K_I

D0

GP

B1/

SP

K_I

D1

GP

B2/

SP

K_I

D2

GP

B6/

LED

0

GP

B7/

LED

1

GP

B10

/PW

R_S

EN

S

J06

J07

J08

J09

J24

J25

J26

J27

J28

J29

J30

J31

J32

J33

J34

J35

EEPROM_ENB

EXT_UXTALIN

DGND

USBDPLUS

USBDMINUS

DGND

J38

J18

J14

J17

J16

J22

J23

J13

J12

J19

4039

3837

3635

3433

3231

3029

2827

26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11

109

87

65

43

21

2 13

2 13

GN

DS

UB

PLL

_FIL

TER

SD

I_12

BIC

LKI

LRC

KI

GN

D3

VD

D3

VR

EG

2

VS

IG

VD

D3

VR

EG

1

GN

D

GN

DC

LEA

N

N.C

.

GN

D1A

GN

D1B

VC

C1B

VC

C2A

GN

D2A

GN

D2B

N.C

.

N.C

.

N.C

.

CO

NFI

G

RE

SE

T

SC

L

SD

A

XTI

GN

DA

VD

DA

OU

T1A

VC

C1A

OU

T1B

OU

T2A

VC

C2B

OU

T2B

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19181716151413121110987654321

4

21

3

432 1

C23

6

D27

7

D27

8

ZD20

2

R20

0

C26

6

C263C262C261C260

CN

201

FB21

4FB

216

FB21

2

FB21

7

R27

5

C225

R213

R212

R214

FB21

1

R209

R210

FB215 FB213

FB218

FB20

7

FB22

6

FB22

5

C238

R228

C21

4

FB22

1

C237

FB219

L201

FB20

6

R231

C23

9

C24

0

R230 R229

C243 C244 C246C245

R233R232 C24

2

C24

1

C255 C256

CN

206

CN

208

CN

204

R29

1

C21

2

C23

5

R29

0

C28

1

FB20

4

C28

3

FB20

2

W208

W20

7

R29

4

C28

9

C29

0IC

204

R29

6

R29

5C

295

C29

4

C21

3

C291

FB20

1

FB20

3

C28

0

R26

4

R207

R283

R21

7 R29

2

R293

R28

2

R281

R20

8

R25

0

R28

0

C202

R279

LD401

C293

C292

R23

5

R27

1

R23

4

C250

C249

C22

2

R20

6

Q20

1

R26

0

IC20

1

R26

1

C22

1

C28

2

R25

2

R25

3

D20

1

R20

5

C28

6

C28

7

C29

6

C20

3

Q20

3

CN

401

R25

8 R23

7

R23

8

C25

3

C25

4

C23

1

C25

2

R244

CN

203

C23

3

C23

2

R29

9

C29

9

R278

Q20

5

R25

7

C29

8

C29

7

R249

C288

C234

Q20

4

IC20

3

R219

C257

R20

2

R277

W206

W205

R27

6

ZD20

1

R236

C201

C20

0

W20

2

R29

8

R29

7

W204

IC20

2

L202

W201

W25

0

R20

1

SW203

W203

(LD501)

(CN

501)

5-11

• WIRElESS PART4. SMPS P.C. BOARD DIAGRAM

LOCATION GUIDE

5-12

• WIRElESS PART5. TX P.C. BOARD DIAGRAM

(TOP VIEW)

(BOTTOM VIEW)

5-13

• WIRElESS PART6. RX P.C. BOARD DIAGRAM

(TOP VIEW)

(BOTTOM VIEW)

Lg Lh w750!1!2 3ta Lhs w75 Tac Taf Tal Tar Taw Acc75t Sm

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