Acer P223W SM072301V1 SERVICE GUIDE

ACER

ACER_LCD_P223W_SM072301V1

Service

Model ID: R22BNUM-M1

Service Manual

Table of Contents

Important Safety Notice------------------------------------------------------------------------------------- 01

01. Product Specification--------------------------------------------------------------------------------- 02

02. OSD Menu-----------------------------------------------------------------------------------------------08

03. Exploded Diagram

04. Assembly and Disassembly Procedures-----------------------------------------------------------12

05.

Troubleshooting----------------------------------------------------------------------------------------20

06. Schematics and Layouts------------------------------------------------------------------------------ 32

AppendixI:User’s Manual

Appendix II: Quick Setup Guide

Appendix III : Spare Parts Llist

Any person attempting to service this chassis must familarize with the chassis and be aware of the

necessary safety precautions to be used when serving electronic equipment

------------------------------------------------------------------------------------- 10

Safety Notice

containing high voltage.

Published by LITE-ON Service Printed in Taiwan © All rights reserved Subject to modification

23th-Jul-2007

Product Anouncement:

Important Safety Notice

ACER P223W

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1

This product is certificated to meet RoHS Directive and

Lead-Free produced definition. Using approved critical

components only is recommended when the situation

to replace defective parts. Vender assumes no liability

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 service

providers recommended by vender should being

aware of notices listed in this service manual in order

to minimize the risk of personal injury when perform

service procedures. Furtermore, the possibile existed

improper repairing method may damage equipment or

Using Lead-Free solder to well mounted the parts.!

! The fusion point of Lead-Free solder requested in the

degree of 220 C.°

products. It is recommended that service engineers

should have repairing knowledge, experience, as well

as appropriate product training per new model before

performing the service procedures.

NOTICE:

To avoid electrical shocks, the products should be

!

connect to an authorized power cord, and turn off the

master power switch each time before removing the

AC power cord.

To prevent the product away from water or explosed

!

in extremely high humility environment.

To ensure the continued reliability of this product,

!

use only original manufacturer’s specified parts.

To ensure following safty repairing behavior, put the

!

replaced part on the components side of PWBA, not

solder side.

To ensure using a proper screwdriver, follow the

!

torque and force listed in assembly and disassembly

procedures to screw and unscrew screws.

2

ACER P223W

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1. Product Specification

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 REQUIREMENTS

1.2.1 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 Chroma

2135 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.

Figure 1

Monitor Block Diagram

Power Board

AC to DC Adapter,

DC to DC Converter,

DC to AC Inverter.

AC - IN

CCFT Dr ive

1W*2

Spe aker

(Option)

DC 5V

DC5.3V (Audio)

Inve rter cont rol

Speaker line input

Audio So urce

Audio line input

LCD Flat Panel

Panel d at a & control,DC power

Inte rface B oard

Flat P anel Controller, D DC

Audio
AMP.

(Option)

Video Signalinput & DDC

Host Computer

Function key input

Functio n

Key Board

The LCD monitor consists of an interface board , a power board

, a function key board and two speaker (1W)(with audio)

The interface board will house the flat panel control logic ,

brightness control logic, audio function control (option), key

function control, DDC and DC to DC conversion to supply the

appropriate power to the whole board and LCD flat panel , and

transmitting LVDS signals into LCD flat panel module to drive

the LCD display circuit .

The power board will support main power DC5V to interface

board, and the power DC5.3V to audio function power of

interface board,and drive the two CCFLs (Cold Cathode

Fluorescent Tube).The interface board provides the power ON /

OFF control over the whole monitor and control for DPMS LED

indicator to function key board.

MONITOR SPECIFICATIO NS

Signal Input Frequency

ITEM

(Analog) V : 56Hz~76H z

Pixel clock 165MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VG A) ~ 1680 x 1050 (WSXGA)

Sync Signal Separate SYNC for TTL (N or P)

Signal Input Frequency

(Digital) V : 56Hz~76Hz

Pixel clock 165MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VG A) ~ 1680 x 1050 (WSXGA)

Connector AC Input AC100V ~ AC240V ± 10% 50/60Hz , 3 pin AC power cord

Input connector D-SUB 15 pin & DVI-D

Audio Jack

Power Consumption AC in 100V~240V Active 48W (with Audio), active 38W , power saving < 2W

User's Control Front Empowering,Auto Adjust,Adjust(-),Adjust (+),Menu,Power

OSD

Pre-Defined Timing Factory 19

User 9

Plug and Play VESA DDC2Bi

Power Saving VESA DPMS

Input Signal Counter Tolerance

Analog :
H : 30kHz~81kHz

Digital :
H : 30kHz~81kHz

Input Impedance 75

(OPTION A L) Audio input 3.6F

Contrast , Brightness , Position ,Clock ,Phase
,Analog/Digital,RESET, Color , Language select , Audio
(option), etc.

H ± 1kHz,≦V±1Hz

≦

SPEC

Ω

1.3.1 Interface Connectors

1.3.1.1 Power Connector and Cables

The AC input shall have an IEC/CEE-22 type male

power receptacle for connection to mains power.

The power cord shall be with length of 1.8+/-0.005

meters.

1.3.1.2 Video Signal Connectors and Cable

The signal cable shall be 1.8 0.005 meters long.

+/-

At the end of the cable shall be a molded-over,

shielded,triple row, 15 position, D-subminiature

connector. The CPU connection shall have captive

screw locks, which will be adequate for hand

tightening. The monitor connection may use small

screws.

1. Product Specification (continued)

ACER P223W

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3

Connector P in Assignm ent

DSUB

P in Sig n a l P in S ig na l P in S ig n al

Red-Video

1

G reen-V ideo

2

Blue-Video

3

NC

4

DDC-GND

5

Connector Pin D escription

D-SUB Pin Description

Pin N ame D e scription

1 Red -Video Red video signalinput.
2 G reen-Video Green video signal input.
3 B lue -V id eo B lue v id eo s ign al in pu t.
4GND Ground
5 DDC -G N D DDC gro und for the V E S A D DC 2 Bi functio n.
6 Red- GN D A nalog signal ground for the R e d video .
7 Green - G ND A na log signal gr o und for the G re e n video.
8 Blue-G N D Ana log signal gr o und for the B lue vide o .

9 + 5 V +5V input from host system for the V ES A DD C 2 Bi function.
10 S ync-G ND S ignal ground
11 GN D Ground
12 D DC _SD A SDA signal input for the V E S A D D CB 2i functio n.
13 H- S YN C Horizontalsignalinput from the host system.
14 V- S YN C Verticalsignal input from the host system.
15 D D C- S CL S CL signal input for the V ESA D D C 2B i function.

6

7

8

9

10

Red-GND

Green-GND

Blue-GND

+5V

Sync-GN D

11

12

13

14

15

NC

DDC-SDA

H-SYNC

V-SYNC

DDC-SCL

DVI-I / DVI-D (If using DVI-D cable, C1, C2, C3, C4, C5 is NC)

Pin Signal Pin Signal Pin Signal

RX2-

1

RX2+

2

GND

3

NC

4

NC

5

SCL

6

SCA

7

Analog V-Sync (NC)

8

RX1-

9

RX1+

10

DVI-I / DV I-D C on nector P inDes crip tion

Pin Name Description Pin Nam e Description

1 RX2- TM D S l i n k #0channel#2 differen ti alpair 16 HP Hot plu g g in g
2 RX2+ TMDS link #0 cha nnel #2 differ ential pair 1 7 RX0- TMDS link #0 cha n nel #0 diffe rentia lp air
3 GN D GND for no link shar e 18 RX0+ TMDS link #0 c hannel #0 diffe rential p air
4 N C NC 19 GN D GND for no link sha re
5NC NC 20NC NC
6 SCL Clock lin e f or D D C i nterf ace 21 NC NC
7 S DA Dat a line for DDC int erfac e 22 GN D Clo ck shie ld

Analo g

8

V-s ync for ana log inter face 23 RXC + TMDS clock d iffere ntial pa ir

V- Sync

9 RX1- TMDS link #0 channel #1 d ifferent ial pair 24 RXC- TMDS clock d ifferentia l pair

10 RX 1+ TM D Slink #0channel#1 differen ti alpair C1

11 GND GNDfornolinkshare C2

12 NC NC C3

13 NC NC C4

14 5V +5V inpu t f romhost systemfor DD C2Bfunction . C5

15 GND Ground(U si n gas Detect Cabl e)

GND

11

NC

12

NC

13

5V

14

GND

15

HP

16

RX0-

17

RX0+

18

GND

19

NC

20

Analo g
Red
Analo g
Gre en
Analo g
Blue

Analo g
H-S ync
Analo g
GND

NC

21

GND

22

RXC+

23

RXC-

24

Analog Red (NC)

C1

Analog Green (NC)

C2

Analog Blue (NC)

C3

Analog H-Sync (NC)

C4

GND

C5

Analo gRe d signal

Analo gGr een sign al

Analo gBlu e signal

H-s ync for analo gint erface

Analo gGN D

1.3.1.3 Audio Jack (option)

This jack shall connect the audio input from host

computer.

1.3.2 Video Input Signals

Video Input Signal

No. Symbol Item Min

Fh Scanning Horizontal Frequency 30 81 kHz Minimum range

1

Fv Scanning Vertical Frequency 55 76 Hz Minimum range

2

Vih Hi Level Input 2.0 5.0 V Note 1)

3

Vil Low Level Input 0 0.8 V Note 1)

4

Video RGB Analog Video Level 0.0 0.7 1.0 V

5

Note 1) Schmitt-Triggers Input , Supported 3.3V device H(&V) sync output from PC.

Normal

Max Unit Remark

75Ωto Ground

1.3.2.1 Video Signal Amplitudes

The three video inputs consist of Red ,Green , and Blue

signals, each with its own coaxial cable terminated at the

monitor. These video signals are analog levels, where 0

V corresponds to black , and 700 mV is the maximum

signal amplitude for the respective color, when each

signal is terminated by a nominal 75.0 ohms .For a given

monitor luminance levels are measured using this

defined video amplitud driving a monitor meeting the

termination requirements .The signal amplitude is not to

be readjusted to compensate for variations in termination

impendance.

1.3.2.2 Video Signal Termination Impedance

This analog video signal termination shall be 75 1%

which shall be resistive with a negligible reactive

component

.

1.3.2.3 Synchronization ( Sync ) Signals

The Horizontal Sync (HS) TTL signal is used to initiate

the display of a horizontal line. HS may be either active

high or active low, depending upon the timing .The

Vertical Sync (VS) TTL signal is used to initiate the

display of a new frame .VS may be either active high or

active low, depending on the timing

1.3.2.4 Sync Signal Levels

The monitor must accept sync signals from both 3.3 and

5 volt TTL logic families.The inputs shall sense a logic 0

when the input is 0.8 volt or less and shall sense a logic

1 when the input is 2.0 volts or greater. In addition to

these level requirements, there shall also be a minimum

of 0.3 volt hysteresis provided for noise immunity

(typically by using a Schmitt Trigger input ).That is , the

input level at which the monitor actually detects a logic 0

shall be at least 0.3 volt lower than the level at which it

actually detects a logic 1.If the monitor sync processing

circuits are designed around the 3.3 volt logic family

,then the sync inputs must be 5 volt tolerant .

1.3.2.5 Sync Signal Loading

TTL input loading shall be equivalent to one TTL input

load. When logic 0 is asserted by a sync input , the

maximum current source from any single monitor sync

input to the driver is 1.6 mA .When logic 1 is asserted ,

the maximum current source from the driver to any

single monitor sync input is 400 uA .

Ω+/-

4

ACER P223W

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1. Product Specification (continued)

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 cause

damage 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 DC

supply 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.

Table 1

Function LED Color

Full Power Blue color

Sleep Orange color

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

controller changes video mode while the OSD is

active, the current settings shall be saved

immediately, the OSD turn off, and new video mode

is displayed.

Description

Key When no OSD display OSD Displayed

Menu Display

MENU

Speaker Volume/Minus

>

(with Audio)

Speaker Volume/Plus

<

(with Audio)

Auto Adjust Function

Auto

Empowering Menu or sub.menu EXIT/Scenario mode

E

1. To display the OSD menu on the screen.

2. To select the OSD sub-Menu

1. Forward selection of the OSD menu.

2. Increase the value after sub-menu selected.

1. Back-forward selection of the OSD menu.

2. Decrease the value after sub-menu selected.

Menu or sub.menu EXIT/Auto Adjust function.

1.3.3.4 OSD adjustment

ITEM CONTENT

AUDIO VOLUME To increase or decrease the sound level

BRIGHTNESS Back li ght Luminance of the LCD panel is adjusted.

CONTRAST A gain of R , G and B signal is adjusted.

AUTO CONTRAST A gain of R , G and B signal auto adjust.

CLOCK The ratio of dividing frequenc y of the dot clock is adjusted.

PHASE The phase of the dot clock is adjusted.

H-POSITION The indication screen is horizontally moved right and left (1 Pixels pitch).

V-POSITION The indica tio n s c re en is ver tica lly moved up and down (1 Pixels pitch).

AUTO ADJUST Clock system auto adjustment, about under 8 sec.

COLOR BALANCE Select three ki nds of modes. ( USER /6500 / 9300 ).

OSD POSITION The OSD indication posit ion can be adjusted.

OSD L ANGUAGE

RECALL DEFAULTS All data copy fro m factory shipment data.

OSD DURATION Adjust OSD menu off time range from10~120 second.

POWER-SAVE

INFORMA TION

NOTE : OSD MENU SEE APPENDIX A

※

Select the language used for the OSD menu among English , French ,
Italian , Deutsch and Spanish.

Back light of the LCD panel is cut when the signal is not input (AC line
power consumption 2W or less).

The frequency of the horizontal / vertical synchronizing signal under the
input is indicated.

1.3.4 Monitor Modes and Timing Capability

1.3.4.1 Format and Timing

The monitor shall synchronize with any vertical

frequency from 55 to 76 Hz , and with any

horizontal frequency from 30 to 81KHz. If the input

frequency is out of the above – specified range,

the monitor shall display a warning screen

indicating that the input frequency is out of range.

Under no circumstances shall any combination of

input signals cause any damage to the monitor .

1.3.4.2 Factory Assigned Display Modes

There are 19 factory pre-set frequency video

modes. These modes have a factory pre-set for all

characteristics affecting front-of-screen

performance. When the system is powered-

on,previously stored screen parameters for a pre-

defined mode will be recalled if the operating

mode is one of those stored in memory. If the

operating mode is not one of those stored in

memory, the monitor CPU will select the PRESET

timing for a mode that is the next lowest in

horizontal scanning frequency to the mode being

currently used. The screen parameters may be

adjusted by the use of the front bezel controls and

then may be saved as a user defined mode. The

monitor shall include all the preset video timings

shown in the following page.(Please see Note.(3) )

1. Product Specification (continued)

ACER P223W

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5

1.3.4.3 Mode Recognition Pull-in

The monitor shall recognize preset modes within a

range of +/-1KHz whichever is less for horizontal ;

and within +/-1Hz for vertical.

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, the

monitor shall select its previously stored settings.

If the user alters a setting, the new setting will be

stored in the same user mode. The user modes

are not affected by the pre-set command. If the

input signal requires a new user mode, storage of

the new format is automatically performed during

user adjustment of the display (if required, please

see Note.(4) )

Preset Timing Ch art

Item N o Resolution

1 102 720 x 400 (70Hz) 31.469 28.322 - +
2 103 640 x 480 (59.94Hz) 31.469 25.175 - ­3 182 640 x 480 (66.66Hz) 35 30.24 - -

4 173 640 x 480 (72Hz) 37.861 31.5 - ­5 109 640 x 480 (75Hz) 37.5 31.5 - -

6 648 x 500 (57.7Hz) 31.234 25.175 + +

7 104 800 x 600 (56.25Hz) 35.156 36 + +

8 116 800 x 600 (60Hz) 37.879 40 + +

9 117 800 x 600 (72Hz) 48.077 50 + +

10 110 800 x 600 (75Hz) 46.875 49.5 + +
11 108 832 x 624 (74.55Hz) 49.722 57.28 - ­12 118 1024 x 768 (60Hz) 48.363 65 - ­13 157 1024 x 768 (70Hz) 56.476 75 - ­14 141 1024 x 768 (75Hz) 60.023 78.75 + +
15 126 1152 x 864 (75Hz) 67.5 108 + +
16 161 1280 x 960 (60Hz) 60 108 + +
17 179 1280 x 1024 (60Hz) 63.981 108 + +
18 131 1280 x 1024 (75Hz) 79.976 135 + +
19 1680 x1050(60Hz) 65.3 146.25 - +

NOTE : (1) 76≦FV≦86 : monitor can display but doesn't guarantee.

(2) fV < 55, or fV > 86 : warning invalid mode.
(3) Factory m od el :

After w e first burn the code into the flash, every preset-modelw e run firstm ust do auto-adjusting.
Then it'll not do auto-adjust again w hen we changed preset-mode back including AC on/offD C on/off.
The only way that preset-mode do auto-adjust again is press '' Internal Factory Reset''.

(4) User m ode :

The code should memorize 9 timing m ode exclusive of preset-modes as use mode and do auto-adjusting.
Whenusersetanewmodethatisnotamongpreviously.It'lldoauto-adjustingthenbesolvedtousermodes.
The ne w mode w ill o ve rw rite the first mem o rize d u se r m o de s.
The user modes be cleared is same as Factory mode. Just do '' Internal Factory Reset''.

(5) Internal F actory Reset and OS D F actory Reset behavior.

H-Sync Band Width

(KHz) (MH z ) H V

Polarity

1.3.5 Controller Requirements

1.3.5.1 General Requirements

The monitor shall include a controller capable of

converting the analog RGB signal from a standard

SXGA resolution video controller in the CPU to a

signal which can be displayed on the panel. The

controller will include a PLL, A/D converters, LVDS

transmitter and other circuitry necessary to perform

its function. The PLL shall be stable enough to

ensure that a static image from the CPU is placed

in the same physical location on the flat panel in

each frame.

1.3.5.2 Video Stretching

The monitor shall contain provisions to “stretch” the

video signal, so that an input signal from the

computer in any resolution smaller than 1680 x

1050 is automatically expanded to fill the entire

screen.

1.3.5.3 Panel Timing and Interface

The controller supplied with the monitor shall

control all panel timing. This controller shall

adequately insulate the monitor from the computer,

so that no possible combination of input signals

from the computer shall cause damage to the flat

panel or any other component of the monitor. The

LCD panel interface shall support the TFT

standard.

1.3.6 DC - AC Inverter Requirements

The DC-AC inverter is on the power board. The

frequencies used by the DC-AC inverter used to power the

backlight shall be chosen so as to prevent any noticeable

effects on the flat panel (such as a rolling effect).

1.3.7 Power Supply Requirements

The AC to DC converter power supply for the monitor shall

be an external AC to DC converter ”brick” This brick shall

have an IEC receptacle for main power input and a pin - in

-socket for DC power out. The brick shall provide sufficient

power for both the monitor and the backlight assembly,

and shall meet requirements specified in Table 2.

Table 2

o

C, with the unit

o

C, and nominal input line

Input Voltage Range

Input Frequency Range

Power Consumption

Line Fu s e

Initial Cold Start

Inrus h Cur rent

Hot Start Cycle

Under Voltage

Line Transient

AC to DC Converter Requirements

The operating range shall be from 90 to 132 and 195 to 265 AVC
sinusoidal for all models specified.

Input power frequency range sha;; be from 47.5 to 63 Hz over the
specified input voltage range.

Power consumption for the m onitor shall be less than 46W over the
specified voltage and frequency ranges. In suspend or sleep mode
the power consumption will be less than 2W.

The AC input shall be fused and become electrically open as a result
on an unsafe current level. The fuse many not be user replaceable.

The power supply shall start and function properly when under full
load, with worst case conditions of input voltage, input frequenct,
operating temperature, and cold backlight lamps.

The inrush current must be limited to 30A when operated at
120VAC, and 50A when operated at 220VAC. Inrush current is

measured at an ambient temperature of 25
temperature stabilized in the pow er-off.

The power supply shall be dam aged when switched ON for one
second and OFF for one second for seven consecutive after

operating for one hour at full load, 25
voltage.

The power supply shall contain protection circuitry such that the
application of an input voltage below the minimum specified in this
table shall not cause damage to the power supply unit nor cause
failure of the input.

The power supply shall operate within IEC 801-4 (± 1KV) and IEC
801-5 (± 2KV) for the domestic U.S. version. The UPS power
supply shall operate and comply with CE mark.

6

ACER P223W

Go to cover page

1. Product Specification (continued)

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

covered with a coating witha#3hardness value

1.4.4 Backlight Requirements

1.4.4.1 General Requirements

The backlight assembly shall be designed to support

field replacement at the customer site or authorized

service center. The lamps shall have a continuous

operating life of at least 40,000 hours at 25. The

operating life is defined as having ended when the

illumination of light has reached 50% of the initial

value. The lamps shall extend a sufficient amount

from the edge of the light guide that sputtering over

the life of the lamps shall not cause degradation of

the luminance uniformity (such as non-illuminated

bands along the edges of the display).

1.4.4.2 Lamps Startup Time

The backlight lamps shall start about 2 sec of the

time the monitor power switch is pressed or the

monitor is restarted from a power - down mode .The

starting time shall stay about 2 sec. for the

minimum expected life of the lamps.

Test conditions are as follows :

Ambient Light ---------------------- < 1.0 lux

Temperature-------------------------- 10

Inactive Time ----------------------- > 24 hours

1.4.5 Defects

1.4.5.1 Visual Inspection

The LCD panel shall be inspected with all pixels set

to white,black , red , green , and blue. The color

variation, brightness variation , and overall

appearance must not be perceived as poor quality

by Lite-On . Areas and / or parameters considered

questionable shall be subjected to detailed

measurements .

1.4.5.2 Display Degradation

Over the life of the product , variation of the

parameters specified in Panel specification shall be

maintained within reasonable limits.The panel must

not exhibit any significant defects while in operation

( excluding the CCFL operation ).This does not in

any way change the warranty given by the panel

manufacturer .

1.4.5.3 Light Leakage

Except for the active display area , there shall be no

light emission visible from any angle from any other

part of the display . For this test , the ambient

illumination must follow panel's specification.

1.4.5.4 Allowable Defects

No cosmetic defects are allowed except those

specified below.The conditions of visual inspections

.

are as follows :

For P20/22 W Series.

■

Viewing distance is to be approximately 35-50cm

■

Ambient illumination is to be 300 to 700 lux.

■

Viewing angle shall be at 90 degree.

■

Defects not apparent within one minute shall be

ignored.

℃

1. Product Specification (continued)

ACER P223W

Go to cover page

7

1.4.5.5 Defect Terminology

Table 3 gives the descriptive terms used in classifying

defects.

Spo ts or lines that a p p ea r dark in the d is p lay patte rn s and are

Dark / Spots / Lines

Bright Spots / Lines

Polarizer Scratch

Polarizer Dent

Rubbing Line

Newton R ing The “rainbow” effect caused by non-uniform cell thickness.

Mo ttling

Dim Line

Cross Lines Off

Bright/DarkDot Asub–pixel(R,G,Bdot)stuckoff/on(electrical).

usually the result of contamination. D efects do not vary in
size or intensity (contrast) when contrast voltage is varied.
Contrast variation can be achieved through the use of varying
gray shade patterns.

Spots o r lines that appear light in the display p atterns.
Defects do no t va ry in s ize or intens ity (co ntra st) w h en
contrast voltage is varied. Contrast variation can be achieved
through the use of varying gray sh ade patterns.

When the unit lights, lines appear light (white) with display
patterns dark and do not vary in size. Physical dam age to the
polarizer that does not damage the glass

When the unit lights, spots appear light (white) w ith display
patterns dark and do not vary in size. Physical damage to the
polarizer that does not damage the glass.

Horizontal o r d iagonal lines that app ear g ray w ith the display
patterns dark and may have resulted from an “out of control”
rubbin g process on the p o lyim ide or “wave s” on the B E F s or
prism sheets.

Wh en the unit lig hts , variation / no n – u n iform ity
(splotchiness) appears light (white) with the display and
might v ary in size.

Wh en the unit lights, line (s) in th e mon ito r (vertical) or m ajo r
(horizontal) axis appear dim, but not com pletely on or off.

When the unit lights, lines in both the minor and major axis
do not appear.

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 from

contaminants ,fingerprints,or defects in any of the visible

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 rejectable

by Lite–On will be reviewed by Lite-On as they become

apparent. These panels will be referred to the Lite - On

Corporate / Manufacturer Purchasing Agreement for

disposition.

1.4.5.8 LCD Inspection

Put LCD panel on inspection table and illuminate the

panel with a daylight fluorescent lamp located above the

panel surface such that the illuminance at the LCD panel

is between 1000 lux and 1500 lux .Defect limits are given

in Table 4 .

1.5 Optical Characteristics

Depends on the LCD supplier's spec. Details refer to QA

Inspection Spec.

Average Diameter smaller of

(L+W)/2 or L/20+2W

< 0.1mm Non countable N / A

0.1 mm ~ 0.3 mm 10 15 mm

0.31 mm ~ 0.5 mm 10 15 mm

0.51 mm ~ 1.25 mm 5 15 mm

1.26 mm ~ 2.5 mm 3 25.4 mm

2.51 mm ~ 3.75 mm 3 25.4 mm

Greater than 3.75 mm NONE Not applicable

Note : Allowable distance between spots of two sizes is the minimum separation

number for the smaller spot. Therefore, if there are two spots, 1.30mm and 0.4mm

in diameter, they must be at least 15mm apart.

Acceptable Number Minimum Separation

8

ACER P223W

Go to cover page

2.1 MAIN OSD MENU

Outline:

The description for control function:

2 OSD Menu

Main

Sub

Menu

Menu

Ico n

Ico n

N/A Warm

N/A Cool

N/A English
N/A
N/A D eutsch
N/A Francais
N/A Espanol
N/A Italiano
N/A
N/A

N/A Auto C onfig

N/A Analog

N /A D ig it a l

N/A

N/A Information

N/A Reset

N/A Exit

Sub Menu

Ite m

User /Red 0-100 100

User/Green 0-100 100

User/Blue 0-100 100







H.Position

V. Position

OSD

Timeout

DDC/CI

switch

Description

Set the color tem perature to
warm white.
Set the color tem perature to
cool w hite.

Ad ju s ts R ed /U s er /G re e n

Green/Blue intensity.

M u lti-la ng u a ge s ele ctio n . N /A

Ad jus t th e h o rizo nta l
position of the OS D.
Ad jus t th e v e rtic a l p os itio n
of the OSD .

Ad jus t th e O S D tim e o ut. 10 -1 2 0 1 0

Auto Adjust the H/V
Position, Focus and
Clockof picture.
(Only Analog InputM odel)
Selectinput signal from
analog (D-Sub)
(Only DualInputM odel)
Selectinput signal from
digital(DVI)
(Only DualInputM odel)

SelecttheDDC/CION or
OFF

Show the resolution, H/V
freq ue n cy ,SN an d
inputportofcurrentinput
tim in g .

Clear each o ld status of
Au to-c o nfig u ratio n
and set the co lor
temperature to W arm.

Save user a djustment an d
OSD disappear.

Adjustm ent

Range

The color

N/A

temperature w illbe
set to cool.

N/A

Thelanguagewill

be set to Eng lish

0-100 50

0-100 50

N/A N/A

N/A N/A

N/A N/A

The DD C/CI switch,

N/A

defaultis “ON” in

N/A N/A

N/A N/A

N/A N/A

ResetValue

monitor.

2. OSD Manu (continued)

ACER P223W

Go to cover page

9

10

ACER P223W

Go to cover page

3.1 Packing Exploded Diagram

3. Exploded Diagram

3.2 Product Exploded Diagram

3. Exploded Diagram (continued)

ACER P223W

Go to cover page

11

12

ACER P223W

Go to cover page

4.1 Assembly procedures:

Connect the cable between power board(P802)

S1

and interface board (P301)

Connect the function key cable into interface

board(P306)

Connect the FFC cable into interface board

4. Assembly and Disassembly Procedures

Take the key function cable out from the hole

S5

shown as photo

Fix the function key cable with a PVC tape

S2

S3

P802

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.

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).

P301

FFC

P306

S6

Turn the monitor faced down and put it on the

Bracket Chassis module till both parts firmly

Take lamp cables out from the holes shown as

the photo.

S4

3

4

Use a Phillips-head screwdriver screwed the

No.1~4 screws till that interface board and bracket

chassis base firmly attached.

3

4

2

2

1

1

S7

Connect the FFC cable to the connector of the LCD

panel.

S8

4. Assembly and Disassembly Procedures (continued)

Connect FFC cable to LCD panel. There are two
locks over here when plugging in should be

noticed

S10

ACER P223W

13

Go to cover page

Use a Phillips-head screwdriver screwed the No.1~4

screws on both side and assemble the LCD panel

and bracket chassis module.

(No1~4 screw size=M3x6; Torque=3~4KGFxCM).

S7

Plug in parallel direction

S11

S12

1

3

Use a Phillips-head screwdriver screwed the

No.1~2 screws.

(No1~2 screw size=M3x10; Torque=3~5KGFxCM).

1

Use a Hex-head screwdriver screwed the

DVI and D-SUB connectors (No.1~4Hex Nut

screws Size=M3x8;Torque=3~5KGFxCM).

2

4

2

S8

S9

Angel < 5 degrees

Plug 8 lamp cables to the connectors of power

board.(Both of right and left sides)

S13

2

4

3

1

Take a key function board to hook with front

bezel (No.1~2) and connect to key function

cable.

1

2

14

ACER P223W

Go to cover page

4. Assembly and Disassembly Procedures (continued)

S14

S15

rc ota ua

Put a ear over n he ssembled nit nd

ress on force echanisms ocked nd irmly

pmlaf

attached

.

S18

S19

Assemble the stand upper side to the rear cover

through the way of screwing 4 screws till both

units firmly attached.

(No1~4 Screw Size=M4x10;

Torque=11~13KGFxCM).

3

1

Stick Vista and TC003 label on the correct

position the same as below photo

Take a LDPE+EPE bag to cover the LCD

monitor.

Take a PE bag to cover the stand base.

S16

S17

4

Assemble the hinge cover into both two sides

Stick a screen card on the front bezel with two

tapes.

2

S20

Take two cushion foams; one is held the front

side of LCD monitor, and another is held the back

side.

S21

4. Assembly and Disassembly Procedures (continued)

Put accessories of stand, DVI cable, and

user’s manual ,power cable on specific

positions as photo below.

USER’S MANUAL

ACER P223W

Go to cover page

15

S22

POWER CABLE

STAND

Move previous assembled parts into the carton

then stick Vista and feature label on the carton then

packing the carton

D-SUB CABLE

DVI CABLE

FEATURE LABEL

VISTA LABEL

16

ACER P223W

Go to cover page

4. Assembly and Disassembly Procedures (continued)

4.2 Disassembly procedures

Open the carton with a proper tool.

S1

Take out all accessories including D-SUB cable

S2

power cable, DVI cables, user’s manual, and stand

base and packing material from the carton.

(Note: It depends on whether users returning

the accessories.)

USER’S MANUAL

FEATURE LABEL

VISTA LABEL

S4

S5

ut returned unit on a protective cushion,then

P

remove LDPE+EPE bag.

Tear off tapes to remove the screen protector

card then turn over the LCD monitor (screen

faced down),

Disassemble the stand cover.

S3

POWER CABLE

STAND

Take off two cushion foams

DVI CABLE

D-SUB CABLE

S6

S7

Use a Phillips-head screwdriver unscrew 4 screws

to release the stand base.

(No1~4 Screw Size=M4x10;

Torque=11~13KGFxCM).

3

4

Turn over the LCD monitor (screen faced up).

1

2

S8

4. Assembly and Disassembly Procedures (continued)

Place cloth on the panel where you are working

on to protect the panel. Continuously, wedge

your finger between the front bezel and the

panel, then pry up on the front bezel to

disengage the locking mechanism.

S9

ACER P223W

Go to cover page

Unhook the key function board from rear bezel,

disconnect the key function cable

17

Work your way along the front bezel to disengage

all the locking mechanism.

S10

S11

Use a Hex-head screwdriver unscrewed 4 screws to

release the DVI and D-SUB connectors

(No1~4Hex Nut screws

Size=M3x8;Torque=3~5KGFxCM).

2

4

Use a Phillips-head screwdriver unscrewed the

No.1~2 screws to lease power plug

(No1~2 screw size=M3x10; Torque=3~5KGFxCM).

3

1

1

2

18

ACER P223W

Go to cover page

4. Assembly and Disassembly Procedures (continued)

S12

S13

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).

1

3

Unplug 4 lamp cables (No. 1~4).

2

4

S15

S16

Disconnect the FFC cable to the connector of
panel.
Use finger to push the lock according to arrow
direction then take out the FFC cable

Examine the panel surface accoring to inspection

criteria. Put it aside.

S14

Take out lamp cables right through the No.1 and

2 square holes and separate the bracket chassis

module and LCD panel apart.

1

2

S17

Use a Phillips-head screwdriver unscrewed the

No.1~4 screws to release the interface board.

(No1~4 screw size=M3x6; Torque=9~10KGFxCM).

3

4

2

1

S18

4. Assembly and Disassembly Procedures (continued)

Use a Phillips-head screwdriver unscrewed the

No.1~4 screws to disassemble the power board.

(No1 screw size=M4x8; No2~4 screw size=M3x6;

Torque=9~10KGFxCM).

ACER P223W

Go to cover page

19

S19

3

4

Disconnect the FFC, P301, and function key

cables to connectors of interface board.

P802

P301

2

1

FFC

P306

20

ACER P223W

Go to cover page

5.1 No.display of screen (Screen is black, color of LED is

amber)

Does OSM display when you push

PROCEED buttom.

5. Troubleshooting

When a signal isn't being inputted, it is

indicated with "No Signal Input". it is
indicatedwith"OutOfRange"atthe
time of the frequency that it can't be

distinguished.

Check if the sync signal from computer is

output and if the video cable is

Proceed "checking the resolution

change IC movement" section.

Yes

connected normally.

OK

No Proceed "No OSM display" section.

NG

Input the sync signal of computer, or

change the cable.

5. Troubleshooting (continued)

5.2 Nothing display on screen (screen is black, color of LED is blue)

Is backlight lit?

ACER P223W

Go to cover page

21

OK

Is backlight lit?

OK

Check OSM menu is display on

screen when you push the

"PROCEED" key.

OK

NG

NG

Refer "Checking the backlight unit" section"

Check the video cable for failure. Check

the host for output signal is all black or not.

1) Change pattern of video signal output on the host.

2) Reconnect the video cable.

3) Change the video cable.

NG

Check if the LCD video signal cable

is connected between the Interface

Board and LCD module.

NG

OK

Failure Point

The LCD video signal cable is
disconnected.

Proceed "Abnormal sreen" dection"

Next

Page

22

ACER P223W

5. Troubleshooting (continued)

Go to cover page

5.2 Nothing display on screen (screen is black, color of LED is

blue) continued

Continue

Check the 5V power

supply for P304 pin 1, 2, 3

NG

OK

Check the input voltage level whether

was changed when pressed function

keysontheP306pin4(normalishigh

level, when push buttom, generated

1.6V)

Check the I302 pin2
if voltage is 3.3V

OK

Check the D326 pin1
if voltage is 1.8V

OK

Check the I301 pin2

if voltage is 5V

OK

Check if the voltage

between I301 pin2

and pin3 is above -

0.7V

OK

Failure Point
I301 is failure.

NG

NG

NG

NG

NG

Failure Point

1) Printed wire between Q301 pin3,
R305, R306, I301 pin1 is failure..

2) Q301 is failure.

Proceed "Checking the DC/DC

converter circuit" section.

Proceed "Checking the DC/DC

converter circuit" section.

Failure Point

1) FB301 is open.

2) C309, C310 is short.

Check if the Q301 pin2 of

PANELVCC_EN signal that

outputted by I305 pin85 is

High level.

OK

Failure Point

NG

1) Printer wire between R307
and I305 pin85 is failure

2) I305 is failure.

OK

Check the P304 all

LVDS signals.

OK

Failure Point

1) The LVDS cable broke between
P304 and LCD module.

2) LCD module is failure.

NG

Failure Point

I305 is failure

Failure Point

1) Printed wire broke between P304
and I305 LVDS signals.

2) I305 is failure.

Check if the voltage on
I305 pin 90 that is from

3.3V to 1.6V.

OK

NG

Failure Point

Printed wire broke between P306
pin 4 and I305 pin 90.

5.3 Checking the back light unit

5. Troubleshooting (continued)

Is +22V supplied to inverter PWB ?

(by the power board)

OK

Check the BKLT_EN signal

of the DC input P301 pin2 at

TTL high level.

OK

NG

NG

Failure Point

Power board of Inverter part failure.

Failure Point

1) printed wire broke between P301
pin2, R303 and I305 pin 88.

2) I305 is failure.

ACER P223W

Go to cover page

23

Check the BKLT_ADJ signal

of the input P301 pin3 from

I305 pin86 is a PWM signal.

OK

Failure Point

1) Back light unit of LCD module is
failure.

2) Inverter Cable is disconnected

NG

Failure Point

1) printed wire broke between P301
pin3, R301 and I305 pin86.

2) I305 is failure.

24

ACER P223W

Go to cover page

5.4 Abnormal screen for VGA

5. Troubleshooting (continued)

Check the R, G, B video

signal from computer input on

P302 of video connector.

NG

OK

Check the R, G, B input video

signals on I305 pin18, 20, 23

respectively that their level is 0.0

to 0.7Vp-p.

NG

OK

Check all LVDS signals

being output to P304 from

I305?

NG

OK

Failure Point

1) No R, G, B video signals output from
host computer, check computer.

2) Video signal cable disconnection.

Failure Point

In the case of the Red signal. (A Green and
Blue signal is the same path, too.)

1) Printed wire broke between P302 pin1
and I306 pin23.

2) Video cable is failure.

3) FB303,FB304, R309 is open.

4) R311 is short or open.

5) C315 is short or open.

Failure Point

Printed wire broke between I305 and P304.

Process "Checking the

resolution change IC

movement" section.

5.5 Abnormal screen (For the DVI)

Check the DVI video signal from
computer input on P303 of DVI-I

video connector.

5. Troubleshooting (continued)

ACER P223W

Go to cover page

25

OK

NG

Check the DVI input video signals on I305 pin 3,
4, 6, 7, 9, 10, 12, 13 respectively that differential

input voltage is 150 to 1200mV, and input

commond mode voltage is 3.3V.

OK

Check all LVDS signals being

output to P304 from I305?

NG

OK

Failure Point

1) No DVI video signals output from host
computer, check computer.

2) DVI Video signal cable disconnection.

Failure Point

NG

Failure Point

Printed wire broke between I305 and

P304.

In the case of the DVI_RX0+/- signal. (A
DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/­signal is the same path, too.)

1)Printed wire broke between P303 pin 17,
18 and I306 pin 3, 4.

2) Video cable is failure.

3) R336, R337 open.

Prpcess "Checking the resolution

change IC movement" section.

26

ACER P223W

Go to cover page

5.6 Abnormal OSM display adjust problem

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)

5. Troubleshooting (continued)

NG

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Check the input TTL level of I305

pin89, 90 whether was changed

Failure Point

I305 is failure.

OK

when pressed function keys.

(Refer to Table 1)

OK

NG

Failure Point

1) Printed wire broke among P306 pin4, pin5; R369 and I305
pin90.

2) Printed wire broke among P306 pin5,R372, and I305 pin89.

3)C386,C388 ,C389,C390 are short.

5.7 Abnormal plug and play operation for VGA

Confirm the host computer

supplies DDC2B mode.

5. Troubleshooting (continued)

ACER P223W

Go to cover page

27

OK

Check the voltage on

P302 pin9 that is power

DC 5 V.

OK

Check the voltage on I303

pin8 that is power DC 5 V.

OK

Check the signal on P302

pin12, 15 that is serial data /

clock signal.

NG

NG

NG

Failure Point

The host machine is not communicatiog in DDC2B
mode.

Failure Point

The Video cable is failure.

Failure Point

1) Printed wire broke between I303 pin8, D308
and P302 pin9.

2) D309, C329 is short.

3) D308 is failure.

OK

NG

Check the output signal of

serial data/clock on I303

pin5, 6.

NG

OK

Failure Point

1) Printed wire broke among I305 pin30, pin31,
R328,R330 and P302 pin12, 15 .

2) I303 maybe failure.

3) R326, R327 are open.

4) R328 or R330 or C330 or C331 is open or
short.

Failure Point

The Video cable is failure.

Failure Point

I303 is failure.

28

ACER P223W

Go to cover page

5.8 Abnormal plug and play operation (For the DVI)

Confirm the host computer

supplies DDC2 mode.

OK

Check the voltage on P303

pin14 that is power DC 5 V.

5. Troubleshooting (continued)

Failure Point

NG

The host machine is not communicatiog in
DDC2 mode.

OK

Check the voltage on P303

pin 16 that is 4.5V.

OK

Check the voltage on I304

pin8 that is power DC 5 V.

OK

Check the voltage on P303

pin 6, pin7 that is serial data

/ clock signal.

NG

NG

NG

Failure Point

The Video cable is failure.

Failure Point

1) Printed wire broke between P303 pin14 and
pin16.

2) R338 is open.

3) C340 or C341 is short.

Failure Point

1) Printed wire broke between I304 pin8, D321
and P303 pin 14.

2) D321 is failure.

3) D322 is short.

OK

Check the output signal of

serial data/clock on I304

pin 5, pin6.

OK

Failure Point

1) Printed wire broke between I305 pin 1,
pin100, I304 pin 5, 6 and P303 pin 7, 6.

2) I305 maybe failure.

3) R347, R349 is open.

4) R345 or R346 or C344 or C346 is short.

NG

NG

Failure Point

The Video cable is failure.

Failure Point

I304 is failure.

5. Troubleshooting (continued)

5.9 Checking the interface circuit of sync signal

5.9.1 Checking the control circuit of horizontal sync pulse

Check the horizontal sync
signal on P302 pin13 TTL

level.

ACER P223W

Go to cover page

29

NG

OK

Check the horizontal sync

signal on I305 pin27 TTL

level.

NG

OK

Failure Point

Process "Checking the resolution change IC
movement" section.

Failure Point

Video cable is failure.

Failure Point

1) Printed wire broke between P302 pin13
and I305 pin27.

2) FB309, R321 are short.

3) D307 or R324 or C327 is short.

30

ACER P223W

Go to cover page

5.10 Checking the resolution change IC movement

Check +3.3V supply on I305 pin8,
pin14, pin16, pin24 , pin32, pin49,

pin56, pin75, pin98

OK

Check +1.8V supply on I305 pin

51, 66, 82, 34.

OK

5. Troubleshooting (continued)

NG Proceed " Checking the DC/DC converter circuit" section.

NG Proceed " Checking the DC/DC converter circuit" section.

Check X301 14.318MHz clock

input to I305 pin96 and pin97 at

TTL level.

OK

Check I305 pin 84 HWRESET

signal is low level at normal

operation.

NG

OK

Check I305 pin37, pin38, pin39,

pin40 SPI signal

(Same as the IIC signal).

OK

NG

NG

Failure Point

1) Printed wire broke between X301 and I305 pin96, pin97.

2) C379, C380 is short or open.

3) X301 failure.

Failure Point

1) Printer wire broke between I305 pin84
and C378

NG

Check if D328 pin1 is low.

OK

Failure Point

1) Printed wire broke between I305 pin37, pin38, pin39, pin40 and
I306 pin1, pin2, pin5, pin6.

2) I306 failure.

2) C78 is short.

Failure Point

1) Printer wire broke between I305 pin84 and C378.

2) C381 is short.

3) R358, D328 is failure

4) I305 is failure

Failure Point

I306 failure.

5.11 Checking the DC/DC converter circuit

Check the 5V is output from

P301 pin5, pin6.

5. Troubleshooting (continued)

ACER P223W

Go to cover page

31

OK

Check the 5V is input to

I302 pin3.

OK

Check the 3.3V is output

from I302 pin2, 4.

OK

Check the 3.3V is input to

Q305 pin1.

OK

Check the 1.8V is output

from D326 pin 1.

NG

NG

NG

NG

Failure Point

1) Power wire disconnection.

2) Power board is failure.

Failure Point

1) Printed wire broke between P301 pin5,
pin6, and I302 pin3.

Failure Point

I302 is failure.

Failure Point

Printed wire broke between I302 pin2, pin4
and Q305 pin1.

OK

Failure Point

1) Printed wire broke between I302 pin 2. 4,
Q306 pin1 and I305 VCTRL pin.

2) FB311, FB312, FB313, FB314, FB315, are
open.

NG

Failure Point

D326 is failure.

G

F

E

D

C

B

6. Schematics and Layouts:

A

1234567 8910111213

AC

110 220V/

Input

Power &

Invertor

Board

Audio DC 5 3V Out Option.( )

+5V

1234567 8910111213

_6. SCHEMATICS BLOCK DIAGRAM1 ACER_LCD_P223W_

Backlight

Brightness Inv On Off,_/

DVI OPTION

Video

Input

Digital

DVI D-

SST 25VF010A

PMC 25LV010A

P303

I306

Flash EPROM

DVI DDC SCL__,

DVI DDC DAT__

24LC02B

DDC

I304

Q305

18v.

VCTRL

TSUMU58BWHL LF-

I302

DC DC-

5v 3 3v-.

Scaler

I305

LVDS

Power Con.

P301

VLCD

Panel Con.

P304

SEC LTM220M1 V0 L01-/

AUO M220EW01 V2 V0-/

CPT CLAA201WA04A

LCD Module

-/M201EW02 V8 V9

PCB No.

6832190100P01

Video

Input

Analog

RGBHsVs,,, ,TMDS

XTAL

14 318MHZ.

X301

D SUB-

P302

I303

DDC

24LC02B

VGA DDC CLK__,

VGA DDC DAT__

Key

Con.

Key

Board

Reset

P306

Function

RC

G

F

E

D

C

B

A

Go to cover page

ACER P223W

32

1234567 8910111213

R135

1M

GND

1000P

C133

1000P

GND

C132

G

F

GND

GND

GND

GND

GND

C105

1000P

1000P

C111

C102

22uF 50V/

2

+

C101

0 1uF.

30 1K 1.%

R103

876

NC

OVPT

OZ9938

ENA

NC

9101112131415

2 2uF 50V./

C103

1

2

+

150K 1%

R106

C104

330P

C108

220P

1

30 1K 1.%

R102

VSEN

ISEN

SSTCMP

LCT

0 047uF.

GND

10K

R101

E

2 2uF 50V./

GND

C110

10K

R136

D

C

30 1K 1.%

R833

B

P801

GND

N

2

0 33U 275V./

C801

A

G

L

1

3

2 5AL250V.

F801

SCK103

R802

1234567 8910111213

+

12

R105

20

R113

10K

5

4

DIM

CT

C106

22 MOF

R133

GND

GND GND

68K.

3

TIMER

GNDA

R107

2

1

2

VDDA

DRV2

GND

1

DRV1

PGND

16

31 6K 1.%

2N7000

GND

510K 1%

R118

Q104

3

1K

I101

R104

R134

A733

Q106

R131

1K

C945

22 MOF

+5V

R132

Q105

30 1K 1.%

R808

1000P 250V/

ON OFF_

GND 1-

1000P

C812

BRI

C811

220P

4

LTV817

4 7U 50V./

C828

GND

GND GND

33 2K 1.%

R827

R830

243K

+

AP431 1%

I803

1K

33K 1%

23

1K

R825

0 01UF PEM./

C827

R824

R829

NA

R826

1

R823

270

GND 1-

I802

0392W./

5

4

SG5841J

3

I801

7621

8

10UF 50V/

C807

2

GND 1-

ZD801

22D

200 MOF/

R815

22 MOF/

100 MOF/

R813

21

1

2

3

7N65C

Q803

1KV X7R

R811

C810

100P

GND 1-

+

R814

D806 1N4148

BEAD 6mm/

33.

1

R807

L803

1N4937

D804

BEAD

GND 1-

21

C808

L809

1N4007

154

4700P 1KVX7R/

MGF

D803

14W/

R801

MGF

1M

1

2

0 22U 275V./

C819

1000P 250V/

C825

GND GND

RL206

D805

RL206

D812

C830

100U 450V/

+

C805

14W/

R804

2M

3

4

1000P 250V/

C820

4700P 1KVX7R/

C809

RL206

0 01U 1KV./

C806

R812

100K 2W/

D801

X

D807

RL206

D808

LINE FILTER

T802

R818

0511W./

3 10

T801

ER28

_6.2 SCHEMATICS POWER BOARDACER_LCD_P223W_

GND

PCB No.

6832192600P01

D113

1N4148

X7R

L802

100V X7R

+5V

ON OFF_

GND

6

C821

SB1060F

D810

R832

X

1000P

ON OFF_

BRI

BRI

P802

123456789

897

GND

GND

1K

GND GND

R817

51K

R828

330U 35V/

330U 35V/

0 1UF.

24C

C818

C817

C851

D811

+

+

ER1002FCT

D809

3A

F101

+22V

500V X7R

R831

X

C816

1000P

R128

13K

2 1

1N4148

D112

21

0 022UF.

C131

402 1%

R130

21

D114

1N4148

2

1N4148

GND

220UF 35V/

C130

GND

1

2

+

AOP609

330UF 35V/

C135

GND

1

2

+

R140

100K

1N4148

D110

1N4148

21

3 65K 1.%

R126

GND

13K 1%

R122

470P

X7R

GND

1

D115

C114

0 1UF.

GND

C120

2

6

D109

EEL19 B-

21

10

3M 1 4W/

R125

100K 1%

R121

1

2

1

2P

P104

GND

2

+

220UF 35V/

GND

C129

3

2

330UF 35V/

100K

R139

C123

C125

S1

D1

6

C134

+

1

G2

S2

2

GND

1N4148

D104

GND

13K 1%

X7R

330UF 35V/

C128

100K

1N4148

3 65K 1.%

R115

R119

C115

470P

C113

0 1UF.

AOP609

+

R138

21

100K 1%

2

2

Q108

D2

D2

8

7

1

R120

13K

2 1

1N4148

D108

12345

T102

7

1

1

2P

P103

GND

GND

2

1N4148

0 022UF.

X7R

402 1%

1N4148

1N4148

D103

C109

R111

D107

D102

1

21

21

GND

21

4

G1

D1

5

2

10P 6KV/

5P 3KV/

2

2

1

1

3M 1 4W/

R117

G1

D1

D105

GND

3

2

4

S1

G2

D1

D2

6

5

7

330UF 35V/

C127

2

+

R137

100K

6

EEL19 B-

10

R116

1

1

2P

P102

+22V

1

S2

Q107

D2

8

GNDGND

+

1000UF 16V/

C822

+

1000UF 16V/

C824

10U

1

GND

+

1000UF 16V/

C823

12345

T101

7

10PF 6KV/

C117

5PF 3KV/

C116

1

2

1

2

2P

P101

GND

GND

10

5V

5V

GND5VGND

5V

G

F

E

D

C

B

A

Go to cover page

ACER P223W

33

G

F

E

D

C

B

A

6.3 ACER _ INTERFACE_TOP_LCD_P223W SCHEMATICS_

1234567 8910111213

2 POWER.

VLCD

VLCD

VLCD

VCC3V3

PANELVCC EN_

VCC3V3

PANELVCC EN_

VDD

BKLT ADJ_

VCC5V

BKLT EN_

BKLT ADJ_

BKLT EN_

VDD

VCC5V

POWER

VCC5VVCC3V3

4 DVI DDC INTERFACE.&

DVI DDC CLK__

DVI DDC DAT__

DVI DDC DAT__

DVI DDC CLK__

VCC5V

BIN

GNDB

BIN

SOG

SOG

GNDG

GIN

GNDG

VCC5V

GNDR

RIN

GIN

GNDR

1234567 8910111213

VGA DDC INTERFACE&

RIN

VCC5V

DVI DDC INTERFACE&

VCC5V

HDCP CTRLn_

RX2-

RX2-

RX1+

RX2+

RX2+

DDC WPn_

DDC WPn_

DVI DETn_

RXC+

RX0+

RX0-

RX0-

RXC+

RX1-

RX1-

RX0+

RX1+

RXC-

DVI DETn_

RXC-

HDCP CTRLn_

3 VGA DDC INTERFACE.&

DDC WPn_

VGA DDC CLK__

VGA DDC CLK__

DDC WPn_

VGA DDC DAT__

VGA DETn_

VGA DDC DAT__

HSYNC

VSYNC

GNDB

VSYNC

HSYNC

VGA DETn_

5 SCALER TSUMU58BWHL LF.-

BKLT EN_

BKLT ADJ_

PANELVCC EN_

VCC3V3

VCC5V

DVI DDC CLK__

DVI DDC DAT__

SCALER TSUMU58BWHL LF-

VSYNC

HSYNC

BIN

DVI DETn_

HDCP CTRLn_

RXC+

DDC WPn_

VGA DDC CLK__

VGA DDC DAT__

VGA DETn_

RX2+

RX2-

RX1-

RX1+

RX0-

RX0+

RXC-

GNDB

SOG

GIN

GNDG

RIN

GNDR

PCB No.

AUDIO EN_

VOLUME

VOLUME

AUDIO EN_

AUDIO EN_

VDD

AUDIO

6 PANEL KEY INTERFACE.&

7 AUDIO.

VOLUME

ADC1 IN_

ADC2 IN_

ADC2 IN_

LED G_

LED A_

ADC2 IN_

ADC1 IN_

LED G_

LED A_

ADC1 IN_

LED G_

LED A_

LVB3M

LVB3P

LVB3M

LVB3M

LVB3P

LVB2M

LVB3P

LVB2M

LVB2M

LVB2P

LVB2P

LVB2P

LVB1M

LVB1P

LVB1M

LVB1P

LVB1M

LVB1P

LVB0M

LVB0P

LVB0M

LVB0M

LVB0P

LVBCKM

LVBCKP

LVB0P

LVBCKP

LVBCKM

LVBCKM

LVBCKP

LVA3M

LVA3P

LVA3P

LVA3M

LVA3P

LVA3M

LVA2M

LVA2P

LVA2M

LVA2M

LVA2P

LVA1M

LVA2P

LVA1M

LVA1M

LVA0M

LVA1P

LVA1P

LVA1P

LVA0M

LVACKM

LVA0P

LVA0P

LVA0M

LVA0P

LVACKM

LVACKP

LVACKP

LVACKM

LVACKP

VCC3V3

PANEL KEY INTERFACE&

VLCD

6832190100P01

G

F

VDD

E

D

C

VLCD

VCC3V3

B

A

Go to cover page

ACER P223W

34

G

F

E

D

C

B

A

1234567 8910111213

100uF 16V/

AIC1084 33PM_

C313

ADJ

JWT A2001WV2 9P--

PANELVCC EN_

123456789

BACKLIGHT EN_

BACKLIGHT ADJ_

VDD

NOTE FOR AUDIO POWER 5V:

P301

1234567 8910111213

_6.4 SCHEMATICS INTERFACE POWERACER_LCD_P223W_

PANELVCC EN_

TP1

VCC5V

VCC5V VCC3V3

1

I302

SOT 223-

4K7

R308

R307 2K4

TP12

FB301 PBY160808T 600Y S--

TP5

C301

0 1uF.

C302

0 1uF.

C303

100uF 16V/

VDD

VOUTVIN

TAB

C305

Su scon UK 3000hrs

C308

R304

R303 1K

0 1uF.

C306

0 1uF.

C307

100uF 16V/

C304

0 1uF NC.()

TP2

VCC5V

VCC5V

TP3

R301 100 22K()

1

EB

TP13

2

3

Q301

MMBT3904

C

R306 47K

TP10

TP11

10K

0 1uF.

10uF 16V/

Su scon UK 3000hrs

R305

C309

C310

TP7

0 1uF.

47K

23

4

C314

100uF 16V/

TP14

VCC3V3

VCC5V

VDD

Su scon UK 3000hrs

2 3

AO3419 3401/

I301

1

C311

0 1uF.

Hole1

Case GND_

687

5

4
3
2
1

Hole2

Case GND_

687

5

4
3
2
1

C312

0 1uF.

TP8

FB302 PBY160808T 600Y S--

VLCD

TP9

VLCD

D

SG

DC

0 1uF.

22K

4K7

PULSE

NC

100

NC

C301 R301

R302

VCC5V

R302

1K NC()

TP6

BKLT EN_

BKLT EN_

TP4

BKLT ADJ_

BKLT ADJ_

PCB No.

6832190100P01

G

VLCD

Hole3

Case GND_

687

5

4
3
2
1

Hole4

Case GND_

687

5

4
3
2
1

F

E

D

C

B

A

Go to cover page

ACER P223W

35

1234567 8910111213

G

F

E

D

C

CONNECTOR DB15

B

16

815714613512411310291

A

P302

17

1234567 8910111213

_6.5 INTERFACE BD_ACER_LCD_P223W SCHEMATICS_ VGA DDC INTERFACE&

TP49

D310

MMSZ5232B

VGA SCL_

VGA SCL_

VGA SDA_

C319

VCC5V VCC5V VCC5V

1

VGA VSYNC_

VGA HSYNC_

VGA CONn_

MMSZ5232B NC()

D304

0 1uF.

2

TP46

1

0 1uF.

D305

R330 47

R328 47

VGA5V

VCC5V

C328

0 1uF.

TP44

TP40

TP37

FB309 SBK160808T 451Y S--

FB310 SBK160808T 451Y S--

MMSZ5232B

TP35

R320 4K7

VCC5V

2

1

C321

0 1uF.

2

VGA VSYNC_

VGA SDA_

VGA HSYNC_

MMBD7000

D301

3

MMBD7000

D302

3

MMBD7000

D303

3

VGA5V

VGA CONn_

VGA GREEN_

VGA BLUE_

FB305 SBK160808T 110Y S--

FB307 SBK160808T 110Y S--

VGA RED_

TP15

TP16

TP17

FB303 SBK160808T 110Y S--

TP51

MMSZ5232B

47pF

47pF

TP50

D311

C330

C331

24C02

VGA DDC DAT__

VGA DDC CLK__

678

SCLWPVCC

I303

R326

12K

R327

12K

D309

MMSZ5232B

C329

0 1uF.

D308

BAT54C

VCC VGA_

VCC VGA_

TP43

1

P

2

3PN

VCC5V

C325

D306

MMSZ5232B

D307

MMSZ5232B

R323

2K4

C326

100pF

TP41

0 1uF.

TP38

47K

R319

75 1_%

75 1_%

75 1_%

R311

R312

R313

FB306 SBK160808T 600Y S--

FB308 SBK160808T 600Y S--

TP165

TP166

TP167

FB304 SBK160808T 600Y S--

PCB No.

6832190100P01

VGA DDC DAT__

VGA DDC CLK__

4K7

GNDSDA

45

1

Q302

MMBT3904

2

2K4

R331

DDC WPn_

A0A1A2

3

TP47

R329

TP48

VGA GIN_

VGA BIN_

VGA RIN_ RIN

R324

2K4

123

TP45

R325

4K7

100pF

C327

TP42

VSYNC IN_

R322 470

VSYNC

HSYNC IN_

R321 470

TP39

HSYNC

R318 100

C324 47nF

GNDB

R317 68

C323 47nF

BIN

TP30

TP31

TP32

R316 100

TP28

C322 47nF

TP29C320

GNDG

TP36

TP33

VGA DETn_

TP34

R315 470

C318 1nF

SOG

TP26

TP27

R314 68

C317 47nF

GIN

TP23

TP24

TP25

TP21

TP22

R310 100

C316 47nF

GNDR

TP18

R309 68

TP19

C315 47nF

TP20

VGA DDC CLK__

VGA DDC DAT__

G

VSYNC

DDC WPn_

F

E

HSYNC

D

VGA DETn_

C

GNDB

BIN

GNDG

B

SOG

GIN

GNDR

A

RIN

Go to cover page

ACER P223W

36

G

F

E

D

C

B

A

1234567 8910111213

D323

MMSZ5232B

TP78

28

DVI D-

GND

32

GRN

RED

BLU

HS

C1C2C3C4C5

RXC+

RXC-

GND

24

DVI RXC_+

DVI RXC_-

RX5+

31

RX5-

GND

RX0+

RX0-

HP

17181920212223

DVI RX0_-

DVI RX0_+

16

GND

DVI HP_

30

RX1+

RX3+

RX3-

GND

5V

DVI CONn_

DVI 5V_

RX1-

VS

8

9101112131415

DVI RX1_+

DVI RX1_-

SDA

29

RX4+

SCL

DVI SCL_

DVI SDA_

RX4-

GND

RX2+

27

RX2-

1234567

DVI RX2_+

DVI RX2_-

P303

1234567 8910111213

_6.6 SCHEMATICS INTERFACE BD_ACER_LCD_P223W_ DVI DDC INTERFACE&

3

MMBD7000

DVI SDA_

DVI SCL_

3

MMBD7000

TP76

R349 47

R347 47

DVI 5V_

VCC5V

1

Q303

MMBT3904

2

R343 2K4

3

TP72

TP69

0 1uF.

1K

C341

R338

0 1uF.

TP68

C340

TP54

TP55

3

MMBD7000

3

MMBD7000

D312

D313

D314

D315

2

C332

0 1uF.

1

VCC5V VCC5V VCC5V VCC5V VCC5V VCC5V VCC5V VCC5V

2

C333

0 1uF.

1

2

C334

0 1uF.

1

2

C335

0 1uF.

1

D324

MMSZ5232B

C344

47pF

C345

47pF

24C02

DVI DDC DAT__

DVI DDC CLK__

678

SCLWPVCC

I304

R345

12K

R346

12K

D322

MMSZ5232B

C343

0 1uF.

D321

BAT54C

VCC DVI_VCC DVI_

TP74

TP56

3

MMBD7000

D316

2

C336

0 1uF.

1

1

P

N

P

2

3

TP73

HDCP CTRLn_

TP57

3

D317

MMBD7000

2

C337

0 1uF.

1

3

TP58TP52

HDCP CTRLn_

MMBD7000

D318

2

C338

0 1uF.

1

MMSZ5232B NC()

D320

DVI CONn_

R342 4K7

TP70

VCC5V

R341 47K

VCC5V

DVI RXC_-

R340 10

DVI RX0_+

DVI RXC_+

DVI RX0_-

R339 10

R336 10

R337 10

DVI RX1_-

DVI RX1_+

R335 10

R334 10

DVI RX2_-

DVI RX2_+

R333 10

R332 10

TP59TP53

3

MMBD7000

D319

2

C339

0 1uF.

1

PCB No.

6832190100P01

TP80

TP79

DVI DDC DAT__

DVI DDC CLK__

4K7

GNDSDA

45

1

Q304

MMBT3904

2

2K4

R350

DDC WPn_

A0A1A2

3

TP77

R348

C342

0 1uF.

123

TP71

TP75

R344

4K7

DVI DETn_

RX1-

RX1+

RX0-

RX0+

RXC+

RXC-

RX2+

TP60

TP61

TP62

TP63

TP64

TP65

TP66

TP67

RX2-

DVI DDC CLK__

DVI DDC DAT__

G

DDC WPn_

F

E

D

DVI DETn_

C

RXC-

RXC+

RX0+

RX0-

RX1+

RX1-

RX2+

RX2-

B

A

Go to cover page

ACER P223W

37

G

F

E

D

C

B

A

VCC3V3

1234567 8910111213

STLMIC810MU NC/

GND

RST

123

RESET

VCC

I309

TP168

2K4 NC/

C404

0 1uF NC./

R389

VCC5V

VCC5V

VCC5V

1N4148

100K

0 1uF.

D328

R358

C381

10uF 16V/

Su scon UK 3000hrs

C378

VCC5V

TP99

TP98

TP97

1234567 8910111213

VCC1V8

PBY160808T 301Y S--

TP93

SPI CSn_

SPI SDO_

123

4 5

PM25LV010A SST25VF010A/

I306

CE#

SO

WP#

GND SI

HOLD#

VCC

SCK

678

SPI SCK_

SPI SDI_

0 1uF.

TP94

C373

VPLL

VCC3V3

DVI DDC CLK__

DVI DDC DAT__

RXC-

RX2-

RXC+

RX2+

RX1-

RX1+

RX0-

RX0+

VGA DDC CLK__

VGA DDC DAT__

VSYNC

HSYNC

GNDB

BIN

SOG

GNDG

GIN

GNDR

RIN

C364

10uF 16V/

TP86

C365

0 1uF.

C366

0 1uF.

C367

0 1uF.

C368

0 1uF.

Su scon UK 3000hrs

C346

10uF 16V/

C347

0 1uF.

C348

0 1uF.

C349

0 1uF.

FB311

_6.7 SCHEMATICS INTERFACE BD_ACER_LCD_P223W_ SCALER

VDVIVCC3V3 VPLLVCC3V3VMPLLVCC3V3

TP81

PBY160808T 301Y S--

RX0+

346

VGA DDC DAT__

VGA DDC CLK__

30

31

VSYNC0

DDCA SDA RS232 TX_/ _

DDCA SCL rs232 RX_/ _

LVA0M

65

HSYNC

VSYNC

172728

BIN0M

HSYNC0

LVA1M

LVA0P

GNDB

BIN0P

LVA1P

SOG

GNDG

211822

19

SOGIN0

GIN0M

LVA2M

LVA2P

6061626364

GNDR

GIN

20

RIN0P

GIN0P

RIN0M

AVDD 33_
AVDD 33_

AVDD 33_

AVDD 33_

AVDD 33_

LVACKM

LVACKP

LVA3M

59

585554

RIN

23

LVA3P

VDDP
VDDP
VDDP
VDDP

VDDC
VDDC
VDDC

VDDC

VCTRL

81

I305

C350

1uF

C351

0 1uF.

0 1uF.

VDVI VCC1V8VPO

TP82

C352

PBY160808T 301Y S--

FB313

14

98

16

24

32
49
56
75

51
66
82

34

VADVMPLL

VPLL

1uF

0 1uF.

0 1uF.

C353

C354

C355

TP83FB312

VCC3V3

PBY160808T 301Y S--

FB314

R354 390 1_%

C383 0 1uF.

C380 22pF

C379 22pF

14 318MHZ.

X301

SPI SDO_

SPI SDI_

GPIO P00 SAR0_/

GPIO P01 SAR1_/

GPIO P02 SAR2_/

888990

SDI

87

SPI SCK_

40

SCK

CSZ

GPIO P27 PWM3_/

GPIO P25_

86

SPI CSn_

373938

SDO

GPIO P24 PWM2_/

GPIO P45 PWM1_/

48

85

GPIO P22 PWM0_/

47

35

GPIO P46_

TP95

GPIO P47_

42

REFM

41

TP92

C374

0 1uF.

25

26

REFP

15

REXT

TP91

100

1

CK-

DDCD SDA_

DDCD SCL_

TSUMU58BWHL LF-

GPIO P23_

LVB0M

NC

NC

78

364546

LVB1M

LVB0P

LVB2M

LVB1P

LVBCKM

LVB2P

LVBCKP

LVB3M

TP101

TP102

BYPASS

53

52

MODE 1[]

MODE 0[]

2

GND

5

GND

11

GND

29

GND

33

GND

50

GND

57

GND

76

GND

79

GND

83

GND

GPIO P11 I2C MDA_/_

GPIO P10 I2C MCL_/_

43

44

80

BYPASS

97

XOUT

XOUT

XIN

96

XIN

GPIO P14 PWM0_/

GPIO P12_

GPIO P13_

TP100

GPIO P16 PWM1_/

GPIO P15_

93

949599

RESET

84

RST

GPIO P03 SAR3_/

GPIO P07_

91

92

101213

B+B-CK+

LVB3P

676869707172737477

RX0-

789

R+R-G+

G-

RX1+

RX1-

RX2+

RX2-

RXC+

RXC-

DVI DDC DAT__

DVI DDC CLK__

BIN

PCB No.

TP105

TP103

TP106

TP104

24C16

I2C SCL_

I2C SDA_

R361 47

R362 47

SCL

SDA

678

SCLWPVCC

GNDSDA

45

VCC3V3

DVI DETn_

HDCP CTRLn

_

R357

4K7 NC()

DVI DETn_

HDCP CTRLn_

R359

4K7

R360

4K7

C382

0 1uF.

VCC3V3

I307

A0A1A2

123

ADC2 IN_

ADC1 IN_

CHIP STBYn_

PANELVCC EN_

BKLT ADJ_

BKLT EN_

LED G_

LED A_

PANELVCC EN_

BKLT ADJ_

BKLT EN_

LED G_

LED A_

C376

0 1uF.

C377

0 1uF.

ADC1 IN_

ADC2 IN_

ADC1 IN_

ADC2 IN_

DDC WPn_

VOLUME

DDC WPn_

0 1uF.

20K NC()

VOLUME

VGA DETn_

VGA DETn_

C375

R356

AUDIO EN_

AUDIO EN_

TP96

10K

R355

VCC5V

LVB0M

LVB0P

LVB0M

VCC5V

LVB0P

LVB1M

LVB1M

LVB1P

LVB1P

LVB2M

LVB2M

LVB2P

LVB2P

100

LVBCKM

LVBCKP

LVBCKP

LVBCKM

LVB3M

R353

LVB3M

LVB3P

LVB3P

1uF NC()

1N4148

TP90

C372

D327

2

1

Q305

MMBT2907A

LVA0M

3

1N4148 NC/

LVA0P

LVA0M

LVA0P

LVA1M

LVA1P

LVA1M

D326

LVA1P

LVA2M

LVA2M

S1A

LVA2P

LVA2P

LVACKM

LVA3M

LVACKP

LVACKM

LVA3M

LVACKP

TP89

D325

LVA3P

LVA3P

C369

0 1uF.

TP87

VCTRL

C356

1uF

C357

1uF

C358

0 1uF.

Su scon UK 3000hrs

C359

10uF 16V/

C360

0 1uF.

C361

0 1uF.

C362

0 1uF.

TP84

PBY160808T 301Y S--

FB315

VPOVAD VCC3V3

TP85

6832190100P01

G

F

E

D

VCC3V3

C363

0 1uF.

R351

R352

2K

C371

10uF 16V/

4 7uF 16V./

VCC1V8

C

C370

TP88

50

B

A

Go to cover page

ACER P223W

38

1234567 8910111213

G

LVA1M

LVA1P

LVA0M

LVA0P

A

F

ADC2 IN_ 1 641V 56Kohm.( )

ADC1 IN_

ADC2 IN_

ADC1 IN_

E

LED G_

LED A_

D

C

B

LVA3M

LVA3P

LVACKP

LVA2M

LVACKM

LVA2P

1234567 8910111213

4K7

R363

LED A_

TP127

TP125

TP123

TP121

TP119

TP117

LVA3M

LVB3M

LVB3P

LVA3P LVB3P

LVACKM

LVBCKM

LVBCKP

LVA2P

LVACKP

LVA2M

LVB2M

LVB2P

LVA1M

LVB1P

LVB1M

LVA1P

LVA0M

LVB0M

LVA0P

LVB0P

_6.8 SCHEMATICS INTERFACE BD_ACER_LCD_P223W_ KEY PANEL INTERFACE&

TP107

TP109

TP111

TP113

TP115

ADC2 IN_

ADC1 IN_

0 846V.

1 14V 30Kohm.( ) 0 694V 15Kohm.( )

0 498V.

TP137

TP136

1 641V 56Kohm.( )1 14V 30Kohm.( ) 0 694V 15Kohm.( )

0 846V.

KEY E_KEY LEFT_KEY POWER_ KEY MENU_KEY RIGHT_

R369 100

R372 100

4K7

R366

LED G_

TP128

0 498V.

KEY AUTO_

LVB2P

LVB1M

LVB0M

LVB1P

LVB2M

LVB0P

TP108

TP110

TP112

TP114

TP116

LVBCKP

LVB3M

LVBCKM

VCC3V3

C386

0 1UF.

C388

0 1UF.

R364

56K 1_%

C389

0 1UF.

R365

56K 1_%

C390

0 1UF.

VCC3V3

TP130

TP126

TP124

TP122

TP120

TP118

PCB No.

6832190100P01

KEY ADC1_

LED Amber_

LED Blue_

KEY ADC2_

JWT A2001WV2 06--

6

TP131

VLCD

VLCD

LVB3P

LVBCKM

LVA2M

LVACKP

LVA3P

LVA3M

LVACKM

LVA2P

VLCD

12345

P306

CVILUX CF25302D0R0-

123456789

FOR THE DOWN SIDE

LVA1P

1011121314151617181920212223242526272829303132

LVA1M

LVA0P

LVA0M

LVB3M

LVBCKP

LVB2M

LVB2P

LVB1M

LVB1P

LVB0P

LVB0M

P304

G

F

E

D

C

B

A

Go to cover page

ACER P223W

39

G

F

E

D

C

B

A

1234567 8910111213

0 1uF NC.()

C601

JWT CN125WR0 6PS--

P601

7

8

6

12354

1234567 8910111213

_6.9 SCHEMATICS FUNCTION _KEYACER_LCD_P223W_

0 1uF NC.()

C602

R607 15K 1_%

R605 56K 1_%

R606 30K 1_%

R604 15K 1_%

R603 30K 1_%

R602 56K 1_%

R600 100

R601 100

PCB No.

6832192500P01

SW PUSHBUTTON

S602

G

RIGHT KEY

SW PUSHBUTTON

F

S603

LEFT KEY

SW PUSHBUTTON

E

S601

POWER KEY

SW PUSHBUTTON

S605

D

Menu KEY

LEDORANGE

2

Y

4

AUTO EXIT KEY/

SW PUSHBUTTON

C

E KEY

S606

SW PUSHBUTTON

S604

B

A

LEDBLUE

LED

1

B

3

D601

Go to cover page

ACER P223W

40

G

F

E

D

C

B

A

POWER BOARD - TOP SILK

6.10 ACER_LCD_P223W LAYOUTS_POWER BOARD_

1234567 8910111213

1234567 8910111213

POWER BOARD - BOTTOM SILK

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER P223W

41

G

F

E

D

C

B

A

6.11 ACER_LCD_P223W LAYOUTS_INTERFACE BOARD_

1234567 8910111213

1234567 8910111213

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER P223W

42

G

F

E

D

C

B

A

6.12 ACER_LCD_P223W LAYOUTS_FUNCTION KEY BOARD_

1234567 8910111213

1234567 8910111213

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER P223W

43