Acer x223w monitor
-
Upload
kukurikuyu -
Category
Documents
-
view
215 -
download
0
Transcript of Acer x223w monitor
-
8/12/2019 Acer x223w monitor
1/41
Table of Contents
Important Safety Notice---------------------
01. Product Specification--------- ---------
02. OSD Menu---------------- ---------------
03. Exploded Diagram
05 .
Appendix I : Users Manual
Appendix II: Quick Setup Guide
----------------------
Troubleshooting-------------------------
06. Schematics and Layouts-------- ------
04. Assembly and Disassembly Procedu
Appendix III : Spare Parts Llist
Service
ACER
Service
http://m-eng.pdf/http://q-eng.pdf/http://x223w.xls/http://x223w.xls/http://q-eng.pdf/http://m-eng.pdf/ -
8/12/2019 Acer x223w monitor
2/41
Product Anouncement:
This product is certificated to meet RoHS Directive
Lead-Free produced definition. Using approved cri
components only is recommended when the situati
to replace defective parts. Vender assumes no liab
express or implied, arising out of any unauthorized
modification of design or replacing non-RoHS parts
Service providers assume all liability.
Qualified Repairability:
Proper service and repair is important to the safe,
reliable operation of all series products. The servic
providers recommended by vender should being
aware of notices listed in this service manual in ord
to minimize the risk of personal injury when perform
service procedures. Furtermore, the possibile exis
improper repairing method may damage equipmen
products. It is recommended that service engineers
should have repairing knowledge, experience, as w
as appropriate product training per new model befo
performing the service procedures.
NOTICE:
To avoid electrical shocks, the products should b
connect to an authorized power cord, and turn of
master power switch each time before removing
AC power cord.
To prevent the product away from water or explos
!
!
Impo
-
8/12/2019 Acer x223w monitor
3/41
1.1 SCOPE
This document defines the design and performance
requirements for an 20/22W inch diagonal , flat panel
monitor .The display element shall be a WSXGA
(1680x1050) resolution TFT-LCD (Thin Film Transistor
Liquid Crystal Display).16.7M color(RGB 6bits+FRC)
images are displayed on the panel.Video input signals are
analog RGB (0.7Vp-p). When the systemis powered-on ,
previously stored screen parameters for a pre-defined
mode will be recalled if the operating mode is one of stored
in memory( 19 factory , 9 users timing ).This monitor
operates normal by non-interlaced mode. DDC (Display
Data Channel) function is DDC2Bi compliance Power
saving function complies with the DPMS (Display Power
Management Signaling) standard.
1.2 GENERAL REQUIREMENTS1.2.1 Test Condition
Brightness level & contrast level max. Full white
pattern test mode following spec. Warm up more than
1 hr, ambient light < 10 Lux , Luminance meter CA110
or BM7 or same equipment .
1.2.2 Test Equipment
The reference signal source is a calibrated Chroma2135 video generator or higher.The use of other
signal generators during qualification and production
is acceptable provided the product complies with this
specification.
1.3 ELECTRICAL
This section describes the electricalrequirement of the
monitor.The block diagram in Figure1 illustrates the various
electrical sub-system.
1. Product S
Figure 1
Monitor Block Diagram
2
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
4/41
1. Product S
D S U B
P i n S i g n a l P i n S i g n a l P i n S i g n a
1 R e d - V id e o 6 R e d - G N D 1 1 N C
2 G r e e n - V id e o 7 G r e e n - G N D 1 2 D D C - S D A
3 B lu e - V id e o 8 B lu e - G N D 1 3 H - S Y N C
4 N C 9 + 5 V 1 4 V - S Y N C
5 D D C - G N D 1 0 S y n c - G N D 1 5 D D C - S C L
C o n n e c t o r P i n A s s i g n m e n t
D -SUB Pi n D e scri pti on
P in N a m e D e s c riptio n
1 R ed - Vid eo R ed vid eo s igna l in put.
2 G re en -V id e o G re e n v id e o s ig na l in pu t.
3 B lu e- V id e o B lu e v id e o s ig na l in pu t.
4 G N D G ro und
5 D D C - G N D D D C g ro un d fo r th e V E S A D D C 2 B i fu nc tio n.
6 R ed - G N D A na lo g s ig na l g ro un d fo r th e R e d v id e o .
7 G r ee n- G N D A n alo g s ig na l g ro u nd fo r t he G r e en v id e o .
8 B lu e -G N D A n alo g s ig na l g ro u nd fo r t he B lu e v id e o .
9 + 5 V + 5 V in pu t fr om h os t s ys te m fo r t he V E S A D D C 2 B i fu nc tio n.
1 0 S ync - GN D S igna l gro und
1 1 G N D G ro und
1 2 D D C _ S D A S D A s ig na l in p ut fo r t he V E S A D D C B 2 i fu nc tio n .
1 3 H - S Y N C H o r iz o nt al s ig na l in p ut fr o m t he h o st s ys te m .
1 4 V - S Y N C V e rt ic a l s ig na l in p ut fr o m t he h o st s ys te m .
1 5 D D C - S C L S C L s ig na l in p ut fo r t he V E S A D D C 2 B i fu nc tio n .
C o n n e c t o r P i n D e s c r i p t i o n
DVI-I / DVI-D (If using DVI-D cable, C1, C2, C3, C4, C5 is NC)
Pin Signal Pin Signal Pin Signal
1 RX2- 11 GND 21 NC
2 RX2+ 12 NC 22 GND
3 GND 13 NC 23 RXC+
4 NC 14 5V 24 RXC-
5 NC 15 GND C1 Analog Red (NC
6 SCL 16 HP C2 Analog Green (N
7 SCA 17 RX0- C3 Analog Blue (NC
8 Analog V-Sync (NC) 18 RX0+ C4 Analog H-Sync
9 RX1- 19 GND C5 GND
10 RX1+ 20 NC
DVI-I / DVI-D ConnectorPinDescription
Pin Name Description Pin Name Description
1 RX2- TMDSlink#0channel#2differentialpair 16 HP Hotplugging
2 RX2+ TMDSlink#0 channel#2 differentialpair 17 RX0- TMDSlink #0channel#0 differentialpair
3 GND GNDfornolinkshare 18 RX0+ TMDSlink#0channel#0differentialpair
4 NC NC 19 GND GNDfor no link share
5 NC NC 20 NC NC
6 SCL Clock line for DDC interface 21 NC NC
7 SDA Data line for DDC interface 22 GND Clock shield
8 Analog
V-Sync V-syncforanaloginterface 23 RXC+ TMDSclockdifferentialpair
9 RX1- TMDSlink#0 channel#1 differentialpair 24 RXC- TMDSclockdifferentialpair
10 RX1+ TMDSlink#0channel#1differentialpair C1 Analog
Red AnalogRedsignal
11 GND GNDfor no link share C2 Analog
Green AnalogGreensignal
12 NC NC C3 Analog
Blue AnalogBluesignal
13 NC NC C4 Analog
H-Sync H-syncforanalog interface
14 5V +5Vinput fromhost systemforDDC2Bfunction. C5 Analog
GND AnalogGND
-
8/12/2019 Acer x223w monitor
5/41
1.3.2.6 Abnormal Signal Immunity
The monitor shall not be damaged by improper sync
timing , pulse duration , or absence of sync , or
abnormal input signal amplitude ( video and/ or sync
too large or too small) , or any other anomalous
behavior of a graphics card video generator when
changing modes , or when any combination of input
signals is removed or replaced . Additionally , under
these conditions , the monitor shall not causedamage to the driving source
1.3.3 User Controls and Indicatiors
1.3.3.1Power On / Off Switch
The monitor shall have a power control switch
visible and accessible on the front of the monitor .
The switch shall be marked with icons per IEC 417 ,
# 5007 and # 5009.The switch shall interrupt the DCsupply to the monitor
1.3.3.2 Power Indicator LED
The monitor shall make use of an LED type
indicator located on the front of the monitor .
The LED color shall indicate the power states as
given in Table 1.
1. Product Specif
Function LED Color
Full Power Blue color
Sleep Orange color
Table 1
1.3.3.3 On-Screen Display
The Lite-ON On Screen Display system shall be
used , controlled by a Menu button. If the buttons
remain untouched for OSD turn off time while
displaying a menu , the firmware shall save the
current adjustments and exit. Also, if the video
t ll h id d hil th OSD i
4
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
6/41
1.3.5 Controller Requirements
1.3.5.1 General Requirements
Th it h ll i l d t ll bl
1.3.4.4 User Display Modes
In addition to the factory pre-set video modes
provisions shall be made to store up to 9 user
modes. If the current mode is a user mode, th
monitor shall select its previously stored settin
If the user alters a setting, the new setting will
stored in the same user mode. The user mode
are not affected by the pre-set command. If th
input signal requires a new user mode, storag
the new format is automatically performed dur
user adjustment of the display (if required, ple
see Note.(4) )
1.3.4.3 Mode Recognition Pull-in
The monitor shall recognize preset modes wit
range of +/-1KHz whichever is less for horizon
and within +/-1Hz for vertical.
1. Product S
H - Sy n c B a nd W i d th
(K H z) (M H z) H V
1 102 720 x 400 (70H z) 31.469 28.322 - +
2 103 640 x 480 (59.94H z) 31.469 25.175 - -
3 182 640 x 480 (66.66H z) 35 30.24 - -
4 173 640 x 480 (72H z) 37.861 31.5 - -
5 109 640 x 480 (75H z) 37.5 31.5 - -
6 648 x 500 (57.7H z) 31.234 25.175 + +
7 104 800 x 600 (56.25H z) 35.156 36 + +
8 116 800 x 600 (60H z) 37.879 40 + +
9 117 800 x 600 (72H z) 48.077 50 + +
10 110 800 x 600 (75H z) 46.875 49.5 + +
11 108 832 x 624 (74.55H z) 49.722 57.28 - -
12 118 1024 x 768 (60H z) 48.363 65 - -
13 157 1024 x 768 (70H z) 56.476 75 - -
14 141 1024 x 768 (75H z) 60.023 78.75 + +
15 126 1152 x 864 (75H z) 67.5 108 + +
16 161 1280 x 960 (60H z) 60 108 + +
17 179 1280 x 1024 (60H z) 63.981 108 + +
18 131 1280 x 1024 (75H z) 79.976 135 + +
19 1680 x1050(60H z) 65.3 146.25 - +
NO TE : (1) 76 F V 86 : monitor can display but doesn't guarantee.
(2) fV < 55, or fV > 86 : w arning invalid mode.
(3) F actory model :
A fter w e first burn the code into the flash, every preset-model w e run first must do auto-adjusting.
T hen it ' ll not do auto-adjust again w hen w e changed preset-mode back including A C on/off D C on
T he only w ay that preset-mode do auto-adjust again is press ' ' Internal F actory R eset' ' .
(4) U ser mode :T he code should memorize 9 timing m ode exclusive of preset-modes as use mode and do auto-adju
When user set a new m ode that is not am ong previously. It ' ll do auto-adjusting then be solved to us
T he new mode w ill overw rite the first memorized user modes.
T he user modes be cleared is same as F actory mode. Just do ' ' Internal F actory R eset' ' .
(5) Internal F actory R eset and O S D F actory R eset behavior.
PolarityItem No R esolution
Preset Ti m i ng Chart
-
8/12/2019 Acer x223w monitor
7/41
1.3.8 Display Communications Channel
The monitor assembly shall provide a display
communications channel that conforms to VESA
DDC2Bi hardware requirements. This configuration
shall contain the 128-byte EDID file as specified by
VESA EDID standard.The monitor should not write to
the EDID file for the first two minutes of operation
following power-up UNLESS some action taken by the
user or the host CPU forces the write (for instance,
requesting the serial number via the OSD).
Furthermore, it is recommended that CMOS switches
be incorporated to isolate the DDC IC from outside
connections while the EDID Fault Management is
being updated. This is to prevent corruption of the data
by attempts to read the data while it is being changed.
1.3.9 Firmware Update Function (same ISP function)The update firmware need through from the D-Sub
connector, use DDC I2C bus to do update firmware.
1.4 PANEL ELECTRICAL
1.4.1 General Requirements
The panel used as the display device shall be an
WSXGA resolution,20/22W, TFT-LCD.This panel shall
be approved for use in this monitor.
1.4.2 Panel Timings
The controller included with the monitor shall translate
all video timings from the CPU that meet the timing
requirements listed in Panel specification into timings
appropriate for the panel. Under no circumstances may
the controller supply the panel with timings that may
result in damage. The controller shall insulate the
panel from the CPU , so that the panel shall always be
driven per it's own specification regardless of the
timings being sent from the CPU.
1.4.3 Polarizer Hardness
The outer face of the front polarizer panel shall be
1. Product Spec6
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
8/41
1.4.5.5 Defect Terminology
Table 3 gives the descriptive terms used in classifyin
defects.
1.4.5.6 Smudges, Streaks and Smears
When viewing the panel oriented so as to maximize
reflected light , there shall be no visible smudging ,
streaking, smearing or other nonuniformity fromcontaminants ,fingerprints,or defects in any of the vi
surfaces. This is independent of whether the unit is
operating or off .
1.4.5.7 Other Defects
Undefined defects that are considered to be rejectab
by LiteOn will be reviewed by Lite-On as they beco
apparent. These panels will be referred to the Lite - Corporate / Manufacturer Purchasing Agreement fo
disposition.
1.4.5.8 LCD Inspection
Put LCD panel on inspection table and illuminate the
panel with a daylight fluorescent lamp located above
1. Product S
Dark / Spots / Lines
Spots or lines that appear dark in the display patterns
usually the result of contamination. Defects do not va
size or intensity (contrast) when contrast voltage is va
Contrast variation can be achieved through the use of
gray shade patterns.
Bright Spots / Lines
Sp o t s o r l i n es t h at ap p ear l i g h t i n t h e d i s p l ay p
Defect s d o n o t v ary i n s i ze o r i n t en s i ty (co nt ras
contrast voltage is varied. Contrast variation can be a
through the use of varying gray shade patterns.
Polarizer ScratchWhen the unit lights, lines appear light (white) with dpat ter ns dar k and do not var y in si ze. Ph ysi cal dam age
pol ari zer tha t do es not dam age the gla ss
Polarizer Dent
When the unit lights, spots appear light (white) with
pat ter ns dar k and do not var y in siz e. Ph ysi cal dam ag
pol ari zer tha t do es not dam age the gla ss .
Rubbing Line
Horizontal or diagonal lines that appear gray with the
pat ter ns dar k and ma y h ave res ult ed fro m an ou t of c
rubbing process on the polyimide or waves on the B
pri sm she ets .
Ne wt on Ri ng Th e ra inb ow eff ect cau se d by non -un ifo rm cel l thi ck
Mottling
When the unit lights, variation / non uniformity
(splotchiness) appears light (white) with the display a
might vary in size.
Dim Line When the unit lights, line(s) in the monitor (vertical)
(horizontal) axis appear dim, but not completely on or
Cross Lines Off When the unit lights, lines in both the minor and majo
do not appear.
B r ig ht / D a rk D o t A s u b p i xe l ( R ,G , B d o t) s t uc k o ff / o n ( el e ct ri c al ) .
-
8/12/2019 Acer x223w monitor
9/41
2.1 MAIN OSD MENU
Outline:
The description for control function:
M ai n
M en u
I co n
S u b
M en u
I co n
S u b M en u
I t e m D e s c r i p t i o n
Ad j u stm en t
R an g e R e s e t V a l u e
N /A W a r m S e t t h e c o l o r t e m p e r a t u r e t o
w a r m w h i t e . N / A
N /A C o o l S e t t h e c o l o r t e m p e r a t u r e t o
co o l w h i te. N / A
U s e r /R e d 0 - 1 0 0 1 0 0
U s e r /G r e e n 0 -1 0 0 1 0 0
U s e r /B lu e 0 - 1 0 0 1 0 0
N /A E n g lis h
N / A
N /A D e u t s c h
T h e c o lo r
t e m p e r a t u r e w i l l b e
s e t t o c o o l.
A d j u s t s R e d / U s e r / G r e e n
G r een / B l u e i n ten si ty.
2 OS
Go to cover page
8 ACER X223W
-
8/12/2019 Acer x223w monitor
10/41
2. OS
-
8/12/2019 Acer x223w monitor
11/41
3.1 Packing Exploded Diagram
3. Explode10
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
12/41
3.2 Product Exploded Diagram
3. Exploded
-
8/12/2019 Acer x223w monitor
13/41
Use a Phillips-head screwdriver screwed the
No.1~4 screws till that power board and bracket
chassis base firmly attached.(No1 screw
size=M4x8; No2~4 screw size=M3x6;
Torque=9~10KGFxCM).
Take a bracket chassis base on a protective
cushion and stick an insulator on the specific
position, take a power board and turn it over. Then,
put it on the specific positions of bracket chassis
base.
Connect the cable between power board(P802)
and interface board (P301)
Connect the function key cable into interface
board(P306)
Connect the FFC cable into interface board
S3
S2
S1
23
4.1 Assembly procedures:
4. Assembly and Disa
P301P802
P306
FFC
12
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
14/41
Connect FFC cable to LCD panel. There are
locks over here when plugging in should be
noticed
4. Assembly and Dis
S8
S8
S7
Angel < 5 degrees
Plug in parallel direction
-
8/12/2019 Acer x223w monitor
15/41
Assemble the hinge cover into both two sides
Assemble the stand upper side to the rear cover
through the way of screwing 4 screws til l both
units firmly attached.
(No1~4 Screw Size=M4x10;
Torque=11~13KGFxCM).
Put a ear over n he ssembled nit nd
ress on force echanisms ocked nd irmly
attached.
r c o t a u a
p m l a f
S16
S15
S14
1
2
3
4
4. Assembly and Disassem14
Go to cover page
ACER X223W
-
8/12/2019 Acer x223w monitor
16/41
Move previous assembled parts into the carton
then stick Vista and feature label on the carton
packing the carton
Put accessories of stand, DVI cable, and
users manual ,power cable on specific
positions as photo below.
4. Assembly and Dis
S21
FEATURE LABEL
STAND
POWERCABLE
DVI
CABLE
D-SUB CABLE
USERS MANUAL
S22
-
8/12/2019 Acer x223w monitor
17/41
Take off two cushion foams
Take out all accessories including D-SUB cable
power cable, DVI cables, users manual, and stand
base and packing material from the carton.
(Note: It depends on whether users returning
the accessories.)
Open the carton with a proper tool.
S3
S2
S1
4.2 Disassembly procedures
STAND
POWERCABLE
DVI
CABLE
D-SUB CABLE
USERS MANUAL
FEATURE LABEL
VISTA LABEL
16
Go to cover page
4. Assembly and DisassemACER X223W
-
8/12/2019 Acer x223w monitor
18/41
Work your way along the front bezel to disenga
all the locking mechanism.
Place cloth on the panel where you are working
on to protect the panel. Continuously, wedg
your finger between the front bezel and the
panel, then pry up on the front bezel to
disengage the locking mechanism.
S8
4. Assembly and Dis
-
8/12/2019 Acer x223w monitor
19/41
Take out lamp cables right through the No.1 and
2 square holes and separate the bracket chassis
module and LCD panel apart.
Unplug 4 lamp cables (No. 1~4).
S13
S12
S14
2
3 4
1
Use a Phillips-head screwdriver unscrewed the
No.1~4 screws to disassemble the LCD panel
and bracket chassis module.
(No1~4 screw size=M3x6; Torque=3~4KGFxCM).
18
Go to cover page
4. Assembly and DisassemACER X223W
-
8/12/2019 Acer x223w monitor
20/41
Use a Phillips-head screwdriver unscrewed t
No.1~4 screws to disassemble the power boa(No1 screw size=M4x8; No2~4 screw size=M
Torque=9~10KGFxCM).
Disconnect the FFC, P301, and function key
cables to connectors of interface board.
S18
S19
4. Assembly and Dis
1
23
4
P301P802
P306
FFC
-
8/12/2019 Acer x223w monitor
21/41
5.1 No.display of screen (Screen is black, color of LED is
amber)
5. Troubl
Yes
OK
When a signal isn't being inputted, it is
indicated with "No Signal Input". it is
indicated with "Out Of Range" at the
time of the frequency that it can't be
distinguished.
Does OSM display when you
PROCEED buttom.
Check if the sync signal from com
output and if the video cable
connected normally.
Proceed "checking the resoluchange IC movement" secti
Go to cover page
20 ACER X223W
-
8/12/2019 Acer x223w monitor
22/41
5.2 Nothing display on screen (screen is black, color of LED
blue)
5. Troub
OKNG
OK
OK
NG
1) Chan
2) Reco
3) Chan
NG
Is backlight lit?
Is backlight lit?
Check OSM menu is display on
screen when you push the
"PROCEED" key.
-
8/12/2019 Acer x223w monitor
23/41
5. Troublesho
OK
OK
OK
NG
Failure PointI301 is failure.
NG
OK
OK
NG
Continue
Check the 5V powersupply for P304 pin 1, 2, 3
Check the I302 pin2
if voltage is 3.3V
Check if the voltage
between I301 pin2and pin3 is above -
0.7V
Check the I301 pin2if voltage is 5V
Check the D326 pin1
if voltage is 1.8V
Check the input voltage level whether
was changed when pressed functionkeys on the P306 pin 4 (normal is high
level, when push buttom, generated
1.6V)
5.2 Nothing display on screen (screen is black, color of LED is
blue) continued
Go to cover page
22 ACER X223W
-
8/12/2019 Acer x223w monitor
24/41
5.3 Checking the back light unit
5. Troub
Is +22V supplied to inverter PWB ?
(by the power board)
OKNG
OK
NG
OKNG
Failure Point
1) Back light unit of LCD module is
failure.
2) Inverter Cable is disconnected
Check the BKLT_EN signal
of the DC input P301 pin2 at
TTL high level.
Check the BKLT_ADJ signal
of the input P301 pin3 from
I305 pin86 is a PWM signal.
-
8/12/2019 Acer x223w monitor
25/41
5.4 Abnormal screen for VGA
5. Troublesho
OK
NG
NG
OK
NG
OK
Check the R, G, B video
signal from computer input onP302 of video connector.
Check the R, G, B input video
signals on I305 pin18, 20, 23
respectively that their level is 0.0
to 0.7Vp-p.
Check all LVDS signals
being output to P304 from
I305?
Go to cover page
24 ACER X223W
-
8/12/2019 Acer x223w monitor
26/41
5.5 Abnormal OSM display adjust problem
5. Troublesho
OK
OK
NG
Failure Point
I305 is failure
Check the input TTL level whether was changed
when pressed function keys on the P306 pin 4, 5
(normal is high level, when push buttom, generated
low level plus)
Check the input TTL level of I305
pin89, 90 whether was changedwhen pressed function keys.
(Refer to Table 1)
-
8/12/2019 Acer x223w monitor
27/41
5.6 Abnormal plug and play operation for VGA
5. Troub
OKNG
OK
NG
OK
NG
OK
NG
Confirm the host computer
supplies DDC2B mode.
Check the voltage on
P302 pin9 that is power
DC 5 V.
Check the voltage on I303
pin8 that is power DC 5 V.
Check the signal on P302
pin12, 15 that is serial data /
clock signal.
Check the output signal of
serial data/clock on I303
pin5, 6.
Go to cover page
26 ACER X223W
-
8/12/2019 Acer x223w monitor
28/41
5.7 Checking the interface circuit of sync signal
5.7.1 Checking the control circuit of horizontal sync pulse
OK
NG
OK
NG
Failure Point
Process "Checking the resolution change IC
movement" section.
Check the horizontal sync
signal on P302 pin13 TTL
level.
Check the horizontal sync
signal on I305 pin27 TTL
level.
5. Troub
28 ACER X223W
-
8/12/2019 Acer x223w monitor
29/41
OK
NG
OK
NG
OK NG
OK
NG
Check +3.3V supply on I305 pin8,
pin14, pin16, pin24 , pin32, pin49,
pin56, pin75, pin98
Check +1.8V supply on I305 pin
51, 66, 82, 34.
Check X301 14.318MHz clock
input to I305 pin96 and pin97 at
TTL level.
Check I305 pin 84 HWRESET
signal is low level at normal
operation.
Che
Go to cover page
28
5.8 Checking the resolution change IC movement
5. TroubleshoACER X223W
-
8/12/2019 Acer x223w monitor
30/41
5.9 Checking the DC/DC converter circuit
OKNG
OKNG
OK
NG
OKNG
Check the 5V is output from
P301 pin5, pin6.
Check the 5V is input to
I302 pin3.
Check the 3.3V is output
from I302 pin2, 4.
Check the 3.3V is input to
Q305 pin1.
Check the 1.8V is output
from D326 pin 1.
5. Troub
6.Schematic
6.1ACER
ABCDEFG
-
8/12/2019 Acer x223w monitor
31/41
csandLayouts:
_
SCHEMATICSBLOCKDIAGRAM
R_LCD_X223W_
PCB
No.
6832190100P01
Scaler
Function
Key
Board
Flash
EPROM
SST
25VF010A
PMC
25LV010A
X
TAL
1
4318MHZ
.
DC
DC
-
5v
3
3v
-
.
Power
&
Invertor
Board
AC
110
220V
/
Input
LVDS
I305
I306
+5V
P301
I302
Brightness
Inv
On
Off
,
_
/
P304
Audio
DC
5
3V
Out
Option
.
(
)
LCD
Module
Backlight
1
8v
.
Power
Con.
Panel
Con.
Reset
P306
Key
Con.
X301
VCTRL
Q305
RC
VLCD
D
SUB
-
I303
DDC
24LC02B
VGA
DDC
CLK
_
_
,
VGA
DDC
DAT
_
_
P302
R
G
B
Hs
Vs
,
,
,
,
TMDS
DDC
24LC02B
I304
DVI
DDC
SCL
_
_
,
DVI
DDC
DAT
_
_
P303
DVI
D-
Analog
Video
Input
Digital
Video
Input
TSUMU58BWHL
LF
-
DVI
OPTION
AUO
M220EW01
V2
V0
-
/
-
/
M201EW02
V8
V9
SEC
LTM220M1
V0
L01
-
/
CPT
CLAA201WA04A
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
30
ACERX223W
-
8/12/2019 Acer x223w monitor
32/41
-
8/12/2019 Acer x223w monitor
33/41
6.4ACER_L
J
ABCDEFG
-
8/12/2019 Acer x223w monitor
34/41
_
SCHEMATICSINTERFACEPOW
ER
LCD_X223W_
PCB
No.
6832190100P01
SOT
223
-
E
B
C
D
S
G
NOTE
FOR
AUDIO
POWER
5V
:
100
R302
22K
NC
4K7
C301
R301
DC
PULSE
0
1uF
.
NC
Su
scon
UK
3000hrs
Su
scon
UK
3000hrs
Su
scon
UK
3000hrs
VCC5V
BACKLIGHTEN_
BKLTADJ
_
VLCD
BACKLIGHTADJ
_
BKLTEN_
PANELVCC
EN_
VDD
VDD
VCC5V
VCC5V
VCC5
V
VLCD
VCC5V
VCC3V3
TP8
R308
4K7
R304
47K
R305
10K
FB302
PBY160808T600YS
-
-
C305
01uF
.
TP11
C308
01uF
.
Hole4
CaseGND
_
1
2
6 8754
3
C303
100uF16V
/
C311
01uF
.
TP10
I301
AO34193401
/1
2
3
C301
01uF
.
I302
AIC108433PM
_
1
2
3
4
ADJ
VOUT
VIN
TAB
FB301
PBY160808T600YS
-
-
TP4
TP13
C302
01uF
.
R301
10022K
(
)
C314
100uF16V
/
Q301
MMBT3904
2
1 3
P301
JWTA2001WV29P
-
-12 3 4 5 6 7 8 9
C306
01uF
.
R306
47K
R303
1K
R307
2K4
Hole1
CaseGND
_
1
2
6 87543
C307
100uF16V
/
C310
10uF16V
/
TP3
C312
01uF
.
Hole2
CaseGND
_
1
2
6 8754
3
TP12
TP9
C313
100uF16V
/
C309
01uF
.
TP2
TP6
TP5
C304
01uFNC
.
(
)
R302
1KNC(
)
TP7
TP14
TP1
Hole3
CaseGND
_
1
2
6 8754
3
BKLTEN_
VCC3V3
PANELVCC
EN_
BKLTADJ
_
VCC5V
VDD
VLCD
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
33
ACERX223W
6.5ACER_LC
CO
ABCDEFG
-
8/12/2019 Acer x223w monitor
35/41
_
INTERFACEBD_
CD_X223W
SCHEMATICS_
VGA
PCB
No.
6832190100P01
1
P2
3
P
N
VGASCL
_
VGASDA
_
VGA5V
VGADDCDAT
_
_
VGADDCCLK
_
_
VGAVSYNC
_
V
GAVSYNC
_
VGAHSYNC
_
V
GAHSYNC
_
VC
CVGA
_
VGA5V
VCC
VGA
_
V
GACONn
_
VGAGIN
_
VGARED
_
VGACONn
_
VGABIN
_
VGARIN
_
RIN
GIN
BIN
SOG
GNDB
GNDG
GNDR
HSYNC
VSYNC
VGADDC
DAT
_
_
VGADDC
CLK
_
_
DDC
WPn
_
VGA
GREEN
_
VGA
BLUE
_
VSYN
CIN_
HSYN
CIN_
VGASCL
_
VGASDA
_
VGADETn
_
VCC5V
VCC
5V
VCC5V
VCC5V
VCC5V
R324
2K4
R329
2K4
TP16
TP18
I303
24C02
1234
5 6 7 8
A0
A1
A2
GND
SDA
SCL
WP
VCC
TP32
C319
01uF
.
TP38
TP19
R317
68
D305
MMSZ5232B
TP22
D309
MMSZ5232B
TP47
TP17
D311
MMSZ5232B
C328
01uF
.
TP16
5
R331
4K7
TP48
C327
100pF
C325
01uF
.
R313
751_%
D302
MMBD7000
3
1
2
R320
4K7
R310
100
D307
MMSZ5232B
TP39
TP167
TP24
R322
470
TP23
R330
47
C317
47nF
FB309
SBK160808T451YS
-
-
D306
MMSZ5232B
TP166
R315
470
C326
100pF
TP40
TP27
C3
30
47
pF
D310
MMSZ5232B
R316
100
C323
47nF
TP50
TP41
R328
47
TP26
C321
01uF
.
TP30
C318
1nF
TP35
C316
47nF
R311
751_%
FB305
SBK160808T110YS
-
-
P302
ONNECTORDB15
8 15
7 14
6 13
5 12
4 11
3 10
2 9 1
16 17
TP36
TP46
R309
68
R319
47K
TP28 C
322
47nF
R318
100
TP42
TP34
TP49
R321
470
TP37
TP31
R327
12K
TP44
C329
01uF
.
Q302
MMBT3904
2
1 3
D304
MMSZ5232BNC(
)
FB307
SBK160808T110YS
-
-
D303
MMBD7000
3
1
2
FB306
SBK160808T600YS
-
-
R323
2K4
R325
4K7
FB308
SBK160808T600YS
-
-
TP33
TP43
C324
47nF
TP20
R3
26
12
K
D308
BAT54C
FB304
SBK160808T600YS
-
-
R314
68
FB303
SBK160808T110YS
-
-
R312
751_%
D301
MMBD7000
3
1
2
TP21
FB310
SBK160808T451YS
-
-
TP25
C315
47nF
C331
47pF
TP45
TP51
TP15
TP29
C320
01uF
.
RIN
GIN
BIN
VSYNC
GNDR
GNDG
GNDB
HSYNC
SOG
VGADDCCLK
_
_
DDC
WPn
_
VGADDCDAT
_
_
VGADETn
_
VCC5V
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
34
ACERX223W
6.6ACER_LCD
VCC
ABCDEFG
-
8/12/2019 Acer x223w monitor
36/41
_
SCHEMATICSINTERFACEBD_
D_X223W_
S
CALER
PCB
No.
6832190100P01
Su
sco
nUK
3000hrs
Su
sco
nUK
3000hrs
Su
scon
UK
3000hrs
SOG
VSYN
C
GNDR
GNDB
XOUT
GND
G
GIN
RIN
AD
C1IN
_
BIN
XIN
HSYN
C
AD
C2IN
_
LVB
CKM
LVA
0P
LVA
3M
LVB2M
LVB1P
LVB
3M
LVA
3P
LVA
CKP
LVA1M
LVA2P
LVB
0M
LVA1P
LVB
0P
LVB1M
LVA2M
LVB2P
LVB
3P
LVA
CKM
LVB
CKP
LVA
0M
RX
0+
RX
0-
RX1+
RX1-
RX2+
RX2-
RX
C+
RX
C-
SPI
SCK
_
SPI
SCK
_
SPI
SDI
_
I2C
SCL
_
I2C
SDA
_
VGADD
C
DAT
_
_
VGADD
C
CLK
_
_
DVIDD
C
DAT
_
_
DVIDD
C
CLK
_
_
AD
C1IN
_
AD
C2IN
_
CHIP
STBYn
_
SPI
CSn
_
SPI
CSn
_
SPI
SD
O
_
DVIDETn
_
PANELV
CC
EN
_
BKLTAD
J
_
BKLTEN
_
LED
G_
AUDIO
EN
_
VOL
UME
SPI
SD
O
_
SPI
SDI
_BYPA
SS
SCL
RE
SET
SDA
VCTRL
VGADETn
_
DD
C
WPn
_
LED
A_
HD
CP
CTRLn
_
RE
SET
VDVI
VCC1V
8
VP
O
VP
O
VAD
VCC3V
3
VCC1V
8
VCC3V
3
VPLL
VAD
VMPLL VP
LL
VDVI
VCC3V
3
VPLL
VCC3V
3
VMPLL
VCC3V
3
VCC3V
3
VCC3V
3 VCC5V
VCC5V
VCC3V
3
VCC1V
8
VCC3V
3
V
CC5V
VCC5V
TP
89
R351
50
C357
1uF
R356
20KN
C(
)
D32
5
S1A
I307
24
C1
6
1234
5 6 7 8
A0
A1
A2
GND
SDA
SCL
WP
VCC
R354
3901_
%
R352
2K
C360
01
uF
.
TP
94
FB
311
PBY1
60808T
301Y
S
-
-
C369
01
uF
.
C371
10uF1
6V
/
TP1
68
R358
100K
TP
83
FB
312
PBY1
60808T
301Y
S
-
-
C362
01
uF
.
TP1
01
TP
97
TP
8
1
C37
8
10uF1
6V
/
C34
7
01
u
F
.
C366
01
uF
.
D32
6
1N414
8N
C/
C37
3
01
uF
.
TP1
02
C37
5
01
uF
.
C352
01
uF
.
R355
10K
C355
01
uF
.
C363
01
uF
.
TP
84
TP
95
C34
6
10uF1
6V
/
C368
01
uF
.TP
98
TP
90
C383
01
uF
.
TP1
00
TP
88
FB
31
3
PBY1
60808T
30
1YS
-
-
TP1
03
D32
8
1N414
8
TP
85
C350
1uF
C359
10uF1
6V
/
C372
1uFN
C(
)
R361
47
C364
10uF1
6V
/
R35
9
4K7
C37
0
47
uF1
6V
.
/
TP
93
R357
4K7N
C(
)
TP1
05
C353
1uF
Q305
MMBT2
907A
3
2
1
C380
22
pF
C361
01
uF
.
C4
04
01
uFN
C
.
/
TP
92
C37
6
01
uF
.
TP
8
6
TP1
06
R362
47
R360
4K7
C351
01
uF
.
FB
314
PBY1
60808T
301Y
S
-
-
R389
2K4N
C/
I306
PM2
5LV
01
0A
SST2
5VF
01
0A
/
1234
5 6 7 8
CE
#
SO
WP
#
GND
SI
SCK
HOLD
#
VCC
R353
100
TP
87
C354
01
uF
.
C34
9
01
uF
.
C374
01
uF
.
C36
5
01
u
F
.
TP
99
I305
TSUMU58BWHLLF-
23
20
21
18
22
19
17
27
28
15
26
25
37
39
38
40
47
86
59
96
97
60
61
62
63
64
65
67
68
69
70
71
72
73
74
77
78
58
55
54
2
5
3467
8
91
012
13
11
29
33
24
56
53
52
81
51
30
31
1001
93
14
75
35
48
85
88
89
90
91
92
94
95
99
43
44
84
41
42
98
16
32
49
66
82
34
50
57
76
79
83
80
87
36
45
46
RIN
0P
GIN
0P
SOGIN
0
BIN
0P
RIN
0M
GIN
0M
BIN
0M
HSYN
C0
VSYN
C0
REXT
REFP
REFM
SD
O
SCK
CSZ
SDI
GPIO
P24PWM2
_
/
GPIO
P27PWM
3
_
/LVA
CKM
XIN
XOUT
LVA2P
LVA2M
LVA1P
LVA1M
LVA
0P
LVA
0M
LVB
3P
LVB
3M
LVB
CKP
LVB
CKM
LVB2P
LVB2M
LVB1P
LVB1M
LVB
0P
LVB
0M
LVA
CKP
LVA
3M
LVA
3P
GND
GND
R+
R-
G+
G-
AVDD 33_
B+
B-
CK+
CK-
GND
GND
GND
AVDD 33_
VDDP
MODE1[
]
MODE
0[]
VCTRL
VDDC
DD
CA
SDAR
S
232TX
_
/
_
DD
CA
SCLrs2
32RX
_
/
_
DD
CD
SDA
_
DD
CD
SCL
_
GPIO
P1
6PWM1
_
/
AVDD 33_
VDDP
GPIO
P22PWM
0
_
/
GPIO
P4
5PWM1
_
/
GPIO
P2
5
_
GPIO
P01
SAR1
_
/
GPIO
P02
SAR2
_
/
GPIO
P03SAR
3
_
/
GPIO
P07
_
GPIO
P1
5
_
GPIO
P12
_
GPIO
P1
3
_
GPIO
P14PWM
0
_
/
GPIO
P11I2
C
MDA
_
/
_
GPIO
P1
0I2
C
MCL
_
/
_
RST
GPIO
P47
_
GPIO
P4
6
_
AVDD 33_
AVDD 33_
VDDP
VDDP
VDDC
VDDC
VDDC
GND
GND
GND
GND
GND
BYPA
SS
GPIO
P00SAR
0
_
/
GPIO
P2
3
_N
CN
C
I309
STLMIC
81
0M
UN
C/
1 2 3
GND
RST
VCC
FB31
5
PBY
160808T
301Y
S
-
-
X301
14
31
8MHZ
.
D327
1N414
8
C377
01
uF
.
TP
96
TP1
04
C34
8
01
uF
.
TP
91
C367
01
uF
.
C37
9
22
pF
C358
01
uF
.
TP
82
C382
01
uF
.
C356
1uF
C381
01
uF
.
VSYN
C
HSYN
CGIN
SOG
GND
G
RX2+
RX2-
RX1-
RX1+
RX
0-
RX
0+
RX
C-
RX
C+
C3V
3
VGADD
C
CLK
_
_
DVIDD
C
CLK
_
_
AD
C1IN
_
AD
C2IN
_
LVA
3P
LVA
3M
LVA
0P
LVA
0M
LVA1P
LVA1M
LVA2P
LVA2M
LVA
CKP
LVA
CKM
LVB
0P
LVB
CKP
LVB
3P
LVB
CKM
LVB1M
LVB
3M
LVB
0M
LVB2P
LVB1P
LVB2M
DVIDD
C
DAT
_
_
VGADD
C
DAT
_
_
PANELV
CC
EN
_
DVIDETn
_
BKLTAD
J
_
BKLTEN
_
VOL
UME
LED
G_
AUDIO
EN
_
RIN
GNDR
BIN
GNDB
VGADETn
_
VCC5V
DD
C
WPn
_
LED
A_
HD
CP
CTRLn
_
VCC5V
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
35
ACERX223W
6.7ACER_LCD_
AD
AD
ABCDEFG
-
8/12/2019 Acer x223w monitor
37/41
_
SCHEMATICSINTERFACEBD_
_X223W_
K
EY
PANELINTERFACE
&
FOR
THE
DOWN
SIDE
DC2
IN
_
1
641V
56Kohm
.
(
)
DC1
IN
_
KEY
E_
KEY
LEFT
_
KEY
POWER
_
KEY
MENU
_
KEY
RIGHT
_
1
14V
30Kohm
.
(
)
0694V
15Kohm
.
(
)
KEY
AUTO
_
1641V
56Kohm
.
(
)
114V
30Kohm
.
(
)
0694V
15Kohm
.
(
)
0
846V
.
0498V
.
0846V
.
0
49
8V
.
LED
A_
LVA2P
LVA
3P
LVB
3P
LVA
0P
LVA1P
LVA
0M
LVA1M
LVB2P
LVB1M
LVB
0M
LVB1P
LVB
0P
LVA
CKP
LVA2M
LVB
CKP
LVB2M
AD
C2IN
_
LVA
3M
LVA
CKM
LVB
3M
LVB
CKM
LVB
3P
LVB
CKM
LVB1M
LVA2M
LVB
3M
LVA
0P
LVA
CKP
LVB
0P
LVA
3P
LVA
0M
LVB
0M
LVB1P
LVB2M
LVB2P
LVA
3M
LVB
CKP
LVA1M
LVA
CKM
LVA2P
LVA1P
AD
C1IN
_
VL
CD
LED
G_
LED
A
mber
_
LED
B
lue
_
KEYA
DC2
_
KEYAD
C1
_
VCC3V
3
VL
CD
TP1
37
R366
4K7
C388
01
UF
.
TP112
TP114
C389
01
UF
.
TP11
6
C390
01
UF
.
TP
107
C386
01
UF
.
R369
100
TP11
0
TP117
P304
CVIL
UX
CF2
5302D
0R
0
-
1 2 3 4 5 6 7 8 91
011
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
TP124
TP1
09
R372
100
P306
JWTA2
001WV2
06
-
-
123456
TP1
31
TP1
36
TP1
08
R365
56K1
_%
TP11
9
TP111
TP12
6
TP1
30
R364
56K1
_%
TP121
TP11
3
R363
4K7
TP12
0
TP12
3
TP11
5
TP11
8
TP
125
TP127
TP122
TP12
8
AD
C2IN
_
AD
C1IN
_
LED
A_
LED
G_
VCC3V
3
LVA2P
LVA
3M
LVA
0M
LVB1P
LVA
0P
LVA
CKP
LVA1M
LVB
0M
LVB1M
LVB
CKM
LVA2M
LVB
CKP
LVB
3M
LVB2M
LVB
3P
LVA
CKM
LVB2P
LVA1P
LVA
3P
LVB
0P
V
LCD
6832190100P01
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
PCB
No.
Gotocoverpage
36
ACERX223W
6.8ACER_LCD_X
ABCDEFG
-
8/12/2019 Acer x223w monitor
38/41
_
SCHEMATICSFUNCTION_KEY
X223W_
PCB
No.
6832192500P01
LEDORANGE
LEFT
KEY
LEDBLUE
Menu
KEY
POWER
KEY
E
KEY
RIGHT
KEY
AUTO
EXIT
KEY
/
S604
SW
PUSHBUTTON
R603
30K1_%
S601
SW
PUSHBUTTON
S603
SW
PUSHBUTTON
S602
SW
PUSHBUTTON
R605
56K1_%
C602
01uFNC
.
(
) R606
30K1_%
S606
SWPUSHBUTTON
R607
15K1_%
R602
56K1_%
R601
100
R604
15K1_%
P601
JWTCN125WR06PS
-
-
1235 46
78
S605
SWPUSHBUTTON
C601
01uFNC
.
(
)
Y B
D601
LED2 1
4 3
R600
100
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
37
ACERX223W
6.9ACER_LCD_X2
PO
ABCDEFG
-
8/12/2019 Acer x223w monitor
39/41
223W
LAYOUTS_POWERBOARD
_
POWERBOARD-BOTTOMSILK
OWERBOARD-TOPSILK
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
PCB
No.
Gotocoverpage
38
ACERX223W
6.10ACER_LCD_X2
ABCDEFG
-
8/12/2019 Acer x223w monitor
40/41
223W
LAYOUTS_INTERFACEBOARD
_
PCB
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
39
ACERX223W
6.11ACER_LCD_X22
ABCDEFG
-
8/12/2019 Acer x223w monitor
41/41
23W
LAYOUTS_FUNCTION
KEY
BOA
RD
_
PCB
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
ABCDEFG
Gotocoverpage
40
ACERX223W