Acer MB243WABNS User Manual

ACER

ACER_LCD_G24_SM080519V1

Service

Model ID:MB243WABNS

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. Firmware Upgrade Procedure------------------------------------------------------------------------31

07. Writing EDID Procedure-------------------------------------------------------------------------------33

08. Schematics and Layouts------------------------------------------------------------------------------ 35

AppendixI:UsersManual

Appendix II: Quick Setup Guide

Appendix II : Spare Parts List

Appendix IV: Software Pack

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

19th-May-2008

Product Anouncement:

Important Safety Notice

ACER G24

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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 G24

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1.1 SCOPE

This document defines the design and performance

requirements for a 24W inch diagonal , flat panel monitor

.The display element shall be a WUXGA (1920x1200)

resolution TFT-LCD (Thin Film Transistor Liquid Crystal

Display).16.7M color(RGB Hi+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( 24 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

AMLCD: LTM240CT01

LTM240CT03

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 electrical requirement of the

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

power board , a function key board. The interface board

wil l 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.

1. Product Specification

Signal Input Frequency

(Analog) V : 55Hz~76Hz

Signal Input Frequency

(Digital) V : 5 5Hz~76Hz

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

Power Consumption AC in 100V~240V active 90W, power saving < 2W

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

Pre-Defined Timing Factory 24

Plug and Play VESA DDC2Bi

Power Saving VESA DPMS

Input Signal Counter Tolerance

1.3.1 Interface Connectors

1.3.1.1 Power Connector and Cables

1.3.1.2 Video Signal Connectors and Cable

MONITOR SPECIFICATIONS

ITEM

Pixel clock 205MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VGA) ~ 1920 x 1200 (WUXGA)

Sync Signal Separate SYNC for TTL (N or P)

Pixel clock 165MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VGA) ~ 1920 x 1200 (WUXGA)

Input connector D-SUB 15 pin & DVI-D

Audio Jack

OSD

User 9

Analog :
H : 30kHz~94kHz

Digital :
H : 30kHz~94kHz

Input Impedance 75Ω

(OPTIONAL) Audio input 3.6F

Contrast , Brightness , Position ,Clock ,Phase
,Analog/Digital,RESET, Color , Language select , etc.

≦ H±1kHz, ≦ V±1Hz

SPEC

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.

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 G24

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3

Connector P in Assignm ent

DSUB

P in Sig n a l P in Sig n a l P in Sig n a l

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 Nam e De s cription

1 R ed-Video Red video signalinput.
2 G reen-Video Green video signal input.
3 B lue -V id eo B lue v ide o s ign al in pu t.
4GND Ground
5 DDC -GND DDC ground for the VESA DDC2Bi function.
6 Red- GN D A nalog signal ground for the R e d video .
7 G reen-GN D Analog signal ground for the Green video.
8 Blue- GN D A na log signal ground for the Blue video .

9 + 5 V +5V input from host system for the V ES A DD C 2B i function.
10 Sync-GND Signalground
11 GN D Ground
12 DDC _SDA S DA signalinput for the VESA DDC B2i function.
13 H - S YN C Horizontalsignalinput from the host system.
14 V - S YN C Verticalsignal input from the host system.
15 DDC -SC L SCL signalinput for the VESA DDC 2Bi 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 nectorPin Description

Pin Name Des cr ip tion Pin Name Description

1 RX2- TM D Slink #0channel#2 differen ti alpair 16 HP Hot pl u gg i n g
2 RX2+ TM D S l i n k #0channel#2 diff eren tialpair 17 RX0- TMDSlink #0channel#0 differe nti alpair
3 GND GND for no link sha re 18 RX0+ TMDS link #0 c hannel #0 diffe rential pa ir
4 NC NC 19 GND GND for no link shar e
5NC NC 20NC NC
6 SCL Clock li nefor DDCinterface 21 NC NC
7 S DA Da ta line fo r DDC inter face 22 GN D Clo ck shie ld

Analo g

8

V-s ync for ana log inter face 23 RXC + TMDS c lock d ifferent ial pair

V- Sync

9 RX1- TMDS link #0 c hannel #1 differ ential pair 24 RXC- TMDS clock d ifferent ial pair

10 RX 1+ TMD Slink #0channel#1 differen tialpair C1

11 GND GNDfor no l in k sh are C2

12 NC NC C3

13 NC NC C4

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

15 GND Groun d(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 signa l

Analo gBlu e signal

H-s ync for analo gint erface

Analo gGN D

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

impedance.

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+/-

1.3.2 Video Input Signals

No. Symbol Item M in

Fh Scanning H orizontal Frequency 30 94 kHz M inim um range

1

Fv Scanning V ertical Frequency 55 76 H z M inimum range

2

V ih H iL evel Input 2 5 Note 1)

3

V il Low L evel Input 0 0.8 V N ote 1)

4

V ideo RG B A nalog V ideo L evel 0.0 0.7 1.0 V

5

N o te 1 ) S c hm itt-T rig g er s In p u t , S upported 3.3V device H (& V) sync output from PC .

Video Input Signal

Normal

Max Unit Remark

75Ωto G round

4

ACER G24

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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 Indicators

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/Plus

>

(with Audio)

Speaker Volume/Minus

<

(with Audio)

Auto Adjust Function

Auto

E Empowering Menu or sub.menu EXIT/Scenario mode

1. To display the OSD menu on the screen.

2. To select the OSD sub-Menu

1. Back-forward selection of the OSD menu.

2. Decrease the value after sub-menu selected.

1. Forward selection of the OSD menu.

2. Increase the value after sub-menu selected.

Menu or sub.menu auto adjust

1.3.3.4 OSD adjustment

ITEM CONTENT

BRIGHTNESS Back light Luminance of the LCD panel is adjusted.

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

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

CLOCK The ratio of dividing frequency 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 indication screen is vertically moved up and down (1 Pixels pitch).

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

COLOR BALANCE Select three kinds of modes. ( USER /WARM / Cold ).

OSD POSITION The OSD indication position can be adjusted.

OSD LANGUAGE

RECALL DEFAULTS All data copy from factory shipment data.

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

POWER-SAVE

INFORMATION

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 94KHz. 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 24 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)

e

ACER G24

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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 Chart

Preset Timing C hart

Item Reso lu tion

1 720 x 400 31.472 70.4 28.325 - + VG A
2 640 x 480 31.469 59.94 25.175 - - VGA
3 640 x 480 37.5 75 31.5 - - VESA
4 648 x 500 31.234 57.735 31.234 + + M AC

5 800 x 600 37.879 60.3 40 + + VESA
6 800 x 600 46.875 75 49.5 + + VESA

7 1024 x 768 48.363 60 65 - - VESA

8 1024 x 768 60.023 75 78.75 + + VE SA

9 1280 x 1024 63.981 60 108 + + V ESA

10 1280 x 1024 79.976 75 135 + + VESA

11 1440 x 900 55.469 59.01 88.75 + - CVT -RB
12 1440 x 900 55.935 59.887 106.5 - + CVT
13 1440 x 900 70.635 74.98 136.75 - + CVT
14 1280 x 720 45 60 74.25 + + CEA -861
15 1280 x 800 49.702 60 83.5 - + CVT
16 1280 x 800 62.795 75 106.5 - + CVT
17 1600 x 1200 75 60 162 + + V ESA
18 1600 x 1200 74.006 59.924 130.25 + - CVT-RB
19 1600 x 1200 93.75 75 202.5 + +/- V ESA
20 1680 x 1050 65.29 59.954 146.25 - + CV T
21 1680 x 1050 64.674 59.883 119 + - CVT-RB
22 1680 x 1050 82.306 74.892 187 - + CVT
23 1920 x 1200 74.038 59.95 154 + - CVT-RB
24 1920 x 1200 74.556 59.885 193.25 + - CV T

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

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

(4)Usermode:

(5) Internal F actory Reset and OSD Factory R ese t beh avior.

H-Sync V-Sync Band W idth

(KH z) (H z) (MHz ) H V

After we first burn the code into the flash, every preset-modelw e run first must do auto-adjusting.
Then it'llnot do auto-adjust again w hen we changed preset-mode back including A C on/off DC on/off.
The only way that preset-mod e do auto-adjust again is press '' Internal Factory Reset''.

The code should m emorize 9 timing mode exclusive of preset-modes as use mode and do auto-adjusting.
When user set a new m ode that is not among previously. It'll do auto-adjusting then be solved to user mod
The new m ode w ill overwrite the first m emo rized user modes.
The user modes be cleared is sam e as Factory mode. Just do '' Internal Factory R eset''.

Polarity

Source

FACTORY PRESET VIDEO TIMINGS (DIGITAL INPUTS)

CEA-861-C

H-Active V-Active I/P H-tot. HB V-tot. VB

code

17,18 720 576 P 864 144 625 49 31.250 50.000 27.000 DVI,HDMI

19 1280 720 P 1980 700 750 30 37.500 50.000 74.250 DVI,HDMI

20 1920 1080 I 2640 720 1125 22.5 28.125 50.000 74.250 DVI,HDMI

21, 22 1440 576 I 1728 288 625 24.5 15.625 50.000 27.000 HDMI

31 1920 1080 P 2640 720 1125 45 56.250 50.000 148.500 DVI,HDMI

39 1920 1080 I 2304 384 1250 85 31.250 50.000 72.000 DVI,HDMI

2, 3 720 480 P 858 138 525 45 31.469 59.940 27.000 DVI,HDMI

4 1280 720 P 1650 370 750 30 44.955 59.940 74.176 DVI,HDMI

5 1920 1080 I 2200 280 1125 22.5 33.716 59.940 74.176 DVI,HDMI

6, 7 1440 480 I 1716 276 525 22.5 15.734 59.940 27.000 HDMI

16 1920 1080 P 2200 280 1125 45 67.433 59.940 148.352 DVI,HDMI

H-freq

(kHz)

V-freq

(Hz)

Pixel

freq

(MHz)

Inputs

■ Digital inputs (DVI, HDMI): Conflicting video- and PC

timings are to be treated as Video timings with one

exception: 640x480p/60Hz timing to be treated as PC-timing.

■

Analog input (VGA) treats all timings as PC-timings.

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

WUXGA 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 1920 x

1200 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.

6

ACER G24

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1. Product Specification (continued)

Table 2

o

C, and nominal input line

Input Voltage Range

Input Frequency Range

Power Consumption

Line Fus e

Initi al Cold Sta rt

Inrush Current

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 monitor 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 power-off.

The power supply shall be damaged 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 dom estic U.S. version. The UPS power
supply shall operate and comply with CE mark.

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

WUXGA resolution, 24W TFT-LCD. This panel shall be

approved for use in this monitor.

o

C, with the unit

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 24W 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)

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 luminance at the

LCD panel is between 1000 lux and 1500 lux .Defect

limits are given in Table 4 .

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7

1.4.5.5 Defect Terminology

Table 3 gives the descriptive terms used in classifying

defects.

Spots or lines that app ear dark in the display patterns and are

Dark / Spots /Lines

BrightS pots / L ines

PolarizerScratch

PolarizerD ent

R u bb in g L ine

New ton Ring The “rainbow” effect caused by non-uniform cell thickness.

M ottlin g

Dim Line

Cross Lines Off

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

us ua lly the re su lt o f c o nta m ina tio n. D ef ec ts d o n o t v ary in
size o r inten s ity ( co n tras t) w he n co n tras t v o ltag e is var ied .
Contrast variation can be achieved through the u se of varying
gray shade patterns.

Spo ts o r lines that app ear light in the display patterns.
D ef ec ts d o no t v ary in size o r in ten sity (co n tras t) w h en
contrast voltage is varied. Co ntrast variation can be achieved
through the use of varying gray sh ade patterns.

W h en th e un it lig h ts, lines a pp e ar ligh t (w h ite) w ith d isp lay
pa tte rn s da rk an d d o n o t va ry in siz e. P hy sic a l d a m ag e to th e
polarizer that do es not dam age the glass

W h en th e u n it ligh ts, s po ts a p pe ar ligh t (w hite ) w ith d isp la y
pa ttern s d ark an d do n ot v ary in siz e. P h ysic al d am ag e to the
polarizer that do es not dam age the glass.

Horizontal or diagonal lines that appear gray with the display
patterns dark and m ay have resulted from an “out of control”
rub b in g pro ce ss o n the p o lyim ide o r “w a ve s” o n the B E Fs o r
prism sheets.

W h en th e un it lig h ts, var iatio n / n o n – un ifo rm ity
(sp lotc h ine ss ) a pp e ars ligh t (w h ite) w ith th e dis pla y an d
m ight vary in size.

W h en th e un it lig h ts, line( s) in the m o n ito r (v e rtica l) o r m a jor
(ho riz o nta l) a x is ap pe ar dim , bu t n o t c om p lete ly on o r off.

W h en th e un it lig h ts, lines in b oth th e m ino r an d m a jo r a x is
do not appear.

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

1.5 Optical Characteristics

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

Inspection Spec.

8

ACER G24

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2.1 MAIN OSD MENU

Outline:

The description for control function:

2 OSD Menu

2. OSD Manu (continued)

ACER G24

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9

10

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3.1 Packing Exploded Diagram

3. Exploded Diagram

3.2 Product Exploded Diagram

3. Exploded Diagram (continued)

ACER G24

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11

12

ACER G24

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4. Assembly and Disassembly Procedures

4.1 Assembly procedures:

Connect the cable between power board(P802)

S1

S2

and interface board (P301)

Connect the function key cable into interface

board(P303)

Connect the cable between power board(P803)and

inverter board (Cn001)

Connect the FFC cable into interface board

P301

P303

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.

P802

P803

CN01

S4

S5

Use a Phillips-head screwdriver screwed the

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

chassis base firmly attached.

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

3

4

Take the key function cable out from the hole

shown as photo

Fix the function key cable with a PVC tape

2

1

S3

Use a Phillips-head screwdriver screwed the

No.1~5 screws till that power board and bracket

chassis base firmly attached.(No1~4 screw

size=M3x6; No5 screw size=M4x8;

Torque=9~10KGFxCM).

4

1

2

3

5

S6

Turn over the bracket chassis base then fix the
inverter board

Use a Phillips-head screwdriver screwed the
No.1~4 screws till that inverter board and bracket
chassis base firmly attached.

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

12

3

4

S7

4. Assembly and Disassembly Procedures (continued)

Connect cable into inverter board(CN001)

Take an inverter shielding bracket to cover the

inverter board

Use a Phillips-head screwdriver screwed the

No.1~6 screws till that inverter shielding bracket

and bracket chassis base firmly attached.

(No1~6 screw size=M3x4; Torque=9~10KGFxCM).

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13

S8

4

CNOO1

5

6

Connect the FFC cable to the connector of the LCD

panel.

1

2

3

S10

Plug in parallel direction

Angel < 5 degrees

Take lamp cables out from the holes shown as the

photo.

S9

Turn the monitor faced down and put it on the

bracket chassis module till both parts firmly

Connect FFC cable to LCD panel. There are

two locks over here when plugging in should be

noticed

S11

Plug 6 lamp cables to the connectors of inverter

board.

14

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4. Assembly and Disassembly Procedures (continued)

S12

S13

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=2.5 KGFxCM).

1

3

2

4

Use a Phillips-head screwdriver screwed the

No.1~2 screws. (No1~2 screw size=M4x10;

Torque=5~7KGFxCM).

1

2

S16

S17

Take a key function board to hook with front

bezeland connect to key function cable.

rc ota ua

Put a ear over n he ssembled nit nd

pmlaf

ress on force echanisms ocked nd irmly

attached

.

S14

S15

Use a Hex-head and screwdriver

Phillips-head

screwed the DVI , D-SUB and HDMI connectors

(No.1~4 Hex Nut screws

Size=M3x8;Torque=6.5 KGFxCM).

±0.5

(No.5 screw size=M3x8;

Torque= KGFxCM).

5

6.5

±0.5

4

2

3

1

Use a Phillips-head screwdriver screwed the

No.1~2 screws. (No1~2 screw size=M3x6;

Torque=5~7KGFxCM).

S18

4

3

2

1

4

3

2

1

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;

KGFxCM).

1

Torque=13

1

2

2

3

1

4

4. Assembly and Disassembly Procedures (continued)

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15

S19

S20

Assemble the hinge cover into both two sides

Stick a screen card on the front bezel with two

tapes.

S23

S24

Take two cushion foams; one is held the above

side of LCD monitor, and another is held the

below side.

Put accessories of stand, DVI cable, and

user’s manual ,power cable on specific

positions as photo below.

S21

S22

Stick Vista and TC003 label on the correct

position the same as below photo

Take a LDPE+EPE bag to cover the LCD

monitor.

S25

PUT CABLE IN THIS POSITION

PUT USER S

MANUAL IN THIS

POSITION

Move previous assembled parts into the carton then

stick Vista and feature label on the carton then

packing the carton

FEATURE LABEL

VISTA LABEL

16

ACER G24

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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

packing material from the carton.

(Note: It depends on whether users returning

the accessories.)

PUT CABLE IN THIS POSITION

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

Take off two cushion foams

PUT USER S

MANUAL IN THIS

POSITION

S6

S7

Use a Phillips-head screwdriver unscrew 4 screws

to release the stand base.

(No1~4 Screw Size=M4x10;

Torque=13 KGFxCM).±1

2

3

Turn over the LCD monitor (screen faced up).

1

4

S8

4. Assembly and Disassembly Procedures (continued)

Put the dissembled monitor closed to by myself

RIGHT SIDE

UP SIDE

LEFT SIDE

Wedge your finger between the front bezel and

the panel, then pry up on the front bezel to

disengage the locking mechanism.

DOWN SIDE

S9

ACER G24

17

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Hold the one upside corner of the front bezel after
separating the upside of the front bezel
Using properly force to pull up front bezel that will
let the locking mechanism of left side, right side
and down side separated

Hold one side of down side that had been
separated from front bezel
Use properly force to pull up front bezel

Insert steel rule between panel and front bezel

.Using properly force to let the locking
mechanism of front bezel and rear cover
separated

Separating all of the locking mechanism of the
front bezel in turn

S10

S11

Unhook the key function board from front bezel,

disconnect the key function cable

18

ACER G24

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4. Assembly and Disassembly Procedures (continued)

S12

S13

Use a Hex-head screwdriver unscrewed 5 screws to

release the DVI ,D-SUB and HDMI connectors

(No1~4Hex Nut screws

Size=M3x8;Torque=6.5 0.5KGFxCM).

(No.5 screw size=M3x8; Torque=

2

5

4

Use a Phillips-head screwdriver unscrewed the

No.1~2 screws to lease power plug

(No1~2 screw size=M3x10; Torque=5~7KGFxCM).

6.5 0.5KGFxCM).

1

3

S15

S16

Unplug 6 lamp cables

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

S14

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=2.5 KGFxCM).

1

3

2

2

Take out lamp cables right through the No.1-3

S17

4

square holes and separate the bracket chassis

module and LCD panel apart.

1

2

3

4. Assembly and Disassembly Procedures (continued)

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19

S18

S19

Examine the panel surface accoring to inspection

criteria. Put it aside.

Disconnect the cable from inverter board

Use a Phillips-head screwdriver unscrewed the

No.1~8 screws

(No1~6 screw size=M3x4; Torque=9~10KGFxCM).

(No7~8 screw size=M3x6; Torque=5~7KGFxCM).

Remove inverter shielding bracket

S21

S22

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

Use a Phillips-head screwdriver unscrewed the

No.1~5 screws to disassemble the power board.

(No 1~4 screw size=M3x6; No 5 screw

size=M4x8; Torque=9~10KGFxCM).

2

1

S20

8

7

3

6

2

5

1

4

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

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

Remove the inverter board

12

S23

1

2

3

Disconnect all of the cable

P301

4

5

3

4

P303

P802

CN01

P803

20

ACER G24

5. Troubleshooting

Go to cover page

5.1 No display on the screen (Screen is black and colour of LED is amber.)

Does OSM display upon pressing

the “MENU” button?

OK

Check if the sync signal output
from connected computer and the
video cable is connected properly

OK

Proceed to “5.4 Abnormal Screen” section.

NG

NG

Proceed to “5.5 Abnormal OSM display” section.

Input the sync signal of computer, or change to a
standard shipped cable for cross test.

5. Troubleshooting (continued)

5.2 Nothing displays on the screen (Screen is black and colour of LED is blue.)

Check if the backlight is

slightly lightened from upper

corners (right/left) of LCD

panel

OK

Proceed to “5.3 Checking the backlight unit” section

NG

ACER G24

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21

Does RGB video

signals output

from connected PC host?

OK

Check if OSM menu

is displayed upon pressing the

“MENU” key

OK

Proceed to “5.4 Abnormal Screen” section.

Check if 3.3V is

supplied from I301 pin2; 2.5V is

supplied from I303, pin2, and

the 1.8V power is supplied from

I302 pin2.

NG

NG

OK

1. Change pattern of video signal outputs from
the PC host to optimum resolution.

2. Reconnect the video cable.

3. Cross-test the other workable video cable.

Check if video signal cable

is connected properly between

LCD monitor and PC host

OK

Check if the

NG

Voltage on I301, I303,

I320 pin3 is high DC

level at 5V.

OK

Failure Point

The cable is disconnected.NG

Failure Point

NG

1.Printedwireisbrokenbetween
P301 pin1, pin2, pin3, pin4 and

I301, I303, I320.

2. Check power board

Check all LVDS signal pins;

output from I314

OK

Failure Point

1. The cable is broke between
P306 and LCD panel.

2. LCD panel is defected.

NG

Failure Point

I301, I302, I303, or I320 is

damaged.

Failure Point

Printed wire is broke or short
between P306, I314

22

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5.3 Check the backlight unit

5. Troubleshooting (continued)

Check the BKLT_EN signal of

rectangle input P301 pin11 at TTL

high level.

OK

Check the PWM signal

supplied from I314

pin251 is a PWM,

pulse-width modulation.

OK

Failure Point

Inverter of LCD module is defected.

NG

Does the I306 pin16

output a TTLvoltage level

at “H” status? <or> Is BKLT_EN

signal of the rectangle being

OK

Failure Point

1. Printed wire is broke
between I314 pin251 and P301.

NG

2. I314 is defected.

output?

Printed wire is broken
between I306 pin16 and

NG

P301.

Failure Point

5.4 Abnormal Screen:

5. Troubleshooting (continued)

Check R.G.B video signals

output from PC host

to D-Sub R.G.B connector

OK

Check the R.G.B signals

on I314 pin40, pin42, and pin45 which

should have voltage level at 0.7Vpp

max.

Failure Point

1. Check connected PC host if there’s no R.G.B

NG

NG

signals output.

2. Video signal cable disconnected.

Failure Point

Green, Blue, Red signals are flow in the same
path. In the case, the Red signal is example.

1. Printed wire is broken between D-Sub [R] and
I314 pin45.

2. R391 is short.

3. C356 is open.

4. R390 is open.

ACER G24

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23

OK

Check all LVDS signal pins

of I314 whether if

output correct signals.

OK

Proceed to “5.8 Checking the resolution change

IC movement” section.

NG

Failure Point

1. The I314 is defected.

2. Printed wire is broken between I314 and P306.

24

ACER G24

5. Troubleshooting (continued)

Go to cover page

5.5 Abnormal OSM display - OSD Adjusment Problem

Check the input TTL level

whether if it was altered upon

pressing the function keys.

OK

Proceed to “5.4 Abnormal Section”

Failure Point

1. Printed wire is broken between P303 pin 2 and I306 pin 87.

NG

2. Printed wire is broken between P303 pin 3 and I306 pin 88.

3. Printed wire is broken between P303 pin 4 and I306 pin 89.

4. Printed wire is broken between P303 pin 5 and I306 pin 90.

5. Printed wire is broken between P303 pin 6 and I306 pin 22.

6. Printed wire is broken between P303 pin 7 and I306 pin 1.

7. C325, C326, C327, C328, C329,C330 is short.

8. R339, R340, R341, R342, R343, R346, R347, R348,
R349, R350 ,R351, R352 is short or open.

9. I306 is defected.

(Note: more than one components defected is possible.)

5.6 Abnormal Plug and Play Operation

5.6.1 Abnormal DDC2 (D-SUB)

Confirm the output of serial

data on I312 pin6 synchronize SCLK at

5. Troubleshooting (continued)

TTL level

OK

Failure Point

ACER G24

25

Go to cover page

Failure Point

I312 is defectedNG

1. The host machine isn’t communicating in DDC2 mode.

2. The video cable may have defected or may not be established
connection for DDC.

3. The I312 pin6 and P304 pin15 may have no signal or incorrect.

4. The R374, R377 is open.

5. I312 pin6 is short.

6. The input source cable is defected.

7. Check I312 pin5 signal whether if correct.

5.6.2 Abnormal DDC2 (DVI)

data on I313 pin6 synchronize SCLK at

Failure Point

Confirm the output of serial

I313 is defectedNG

TTL level

OK

Failure Point

1. The host machine isn’t communicating in DDC2 mode.

2. The video cable may have defected or may not be established
connection for DDC.

3. The I313 pin6 and P305 pin6 may have no signal or incorrect.

4. The R393 or R397 is open.

5. I313 pin6 is short.

6. The input source cable is defected.

7. Check I313 pin5 signal whether if correct.

26

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5.7 Checking the interface circuit of sync signal

5.7.1 Checking the control circuit of horizontal sync pulse

Check the horizontal

sync signal on I314 pin46

TTL level

OK

Proceedto“5.8Checkingthe

resolution change IC movement”

section

5. Troubleshooting (continued)

1. Video cable is defected.

2. Printed wire is broken between P304 pin13 and I314 pin46.

3. FB305, R364, R363 is open.

NG

4. R371, C336, D305 is short.

5. I311 is defected.

Failure Point

5.7.2 Checking the control circuit of vertical sync pulse

Check the vertical sync

signal on I314 pin47 TTL level

OK

Proceed to “5.8 Checking the resolution

change IC movement” section

NG

Failure Point

1. Video cable is defected.

2. Printed wire is broken between P314 pin14 and I314 pin47.

3. FB306, R368, R369 is open or more than one component.

4. R370, C335, D303 is short.

5. I311 is defected.

5. Troubleshooting (continued)

5.8 Checking the resolution change IC movement

Is there +3.3V

SuppliedonI314pin107,

pin48, pin61, pin250, pin12, pin70,

pin170, pin184, pin203, pin216,

pin236, pin252, pin20, pin28,

pin38, pin19, pin37,

pin131?

OK

Is there +1.8V

supplied on I314 pin16, pin22,

pin50, pin2, pin78, pin96, pin143,

pin160, pin181,

pin225

NG

NG

Proceed to “5.9 Checking the DC/DC converter
circuit” section

Proceed to “5.9 Checking the DC/DC converter
circuit” section

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27

OK

Is 14.318MHz

clock input to I314 pin35

and pin36 at TTL level

during power on?

OK

Is +3.3V supplied to

I314 pin9 at low level

(Reset again)?

OK

Failure Point

I314 is defected.

Is 14.318MHz clock output

NG

NG

Print wire is broken between I306
pin12 and I314 pin9.

from X302 pin1 at TTL level

during power on?

Failure Point

Print wire is broken between X302
pin1 and I314, pin36

Check the output

of 3.3V “H” pulse from

I306 pin12

OK

Failure Point

NG

Failure Point

X302 is defected.

Failure Point

I306 is defected.

28

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5.9 Checking the DC/DC converter circuit

5. Troubleshooting (continued)

Failure Point

Check if the 5V is output

from P301 pin1, pin2, pin3, pin4

to I301, I303, I320 pin3.

OK

Check if the 3.3V, 2.5V

and 1.8V line voltage is output

from I301, I302, I303 pin2

OK

Failure Point

Printed wire is broken
between I301, I302, I303
pin2, and I314 power supply
pin.

Printedwireisbrokenbetween

NG

P301 pin1, pin2, pin3, pin4 and

I301, I303, I320 pin3.

Is the output

NG

FB301 being supplied to

I301, I303, I320 pin3?

OK

Failure Point

I301, I303, I320 is defected.

NG

Failure Point

Printedwireisbroken
between I301, I303, I320
pin3 and output of FB301

5.10 Checking the inverter board circuit

Does 22V output pin

have voltage around 20V?

Does On/Off pin have voltage over 3V?

Does brightness pin have voltage in

the range of 0V~3.2V?

OK

5. Troubleshooting (continued)

NG

Check F101, I101, Q110, Q111, Q112,
Q113 and repair them if be damaged

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29

Does I101 pin6 have 5V output?

OK

Does P101, P102, P103,

P104 be firmly connected?

OK

Does I101 pin4, pin5

have triangle pulse?

OK

Does I101 pin1 have soft

start edge up to 2.4V?

OK

Does I101 pin8 have

voltage up to 1.2V from output

detection?

NG

NG

NG

OK

Check I101 and repair them if be damaged

Check CCFL and repair if damage.NG

Check I101 and repair if damage

Repair 101

Check D102, D103, D107, D108, D114,
D115, D112, D113 and repair if damage.

NG

Does

half bridge (Q104,

Q105, Q106, Q107, Q108)

work successful?

OK

Does transformer
(T101, T102) have output AC
voltage to P101, P102, P103,

P104?

OK

Check panel module if damage

NG

NG

Check Q104, Q105, Q106, Q107, Q108 and
repair them if damage

Check T101 and T102 if damage

30

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5.11 HDMI signal check

5.11.1 No video

5. Troubleshooting (continued)

Check the TMDS signal

from computer input on

HDMI connector

OK

Check the TMDS signal of

I322

NG

Failure Point

I314 was damaged

Failure Point

NG

1.Check the host PC to see if there’s no TMDS
signal output

2.HDMI cabled disconnected. Reconnect the
cable till firmly connected

3.P311 is disconnected. Reconnect the cable
till firmly connected

Failure Point

OK

I322 was damaged.

6. Firmware Upgrade Process

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31

Hardware Configuration

Connect VGA
cable between
monitor and kit

Mstar ISP Utility Configuration:

Select AUTO DETECT button that will automatically detect
the device then shows “OK” on the right side.

S2. Press [Connect] button.

Connect printer
cable between
PC and kit

Launch the utility of “ISP_Tool Winbond 0315.exe”

Press Config button

There s a Dialog window shown on the screen. It is the

meaning of connection successful .

Check the video cable and ISP board (D-sub to Printer

port) between LCD monitor to PC host to see if it

disconnected.

32

ACER G24

Go to cover page

6. Firmware Upgrade Process (continued)

Press [Device] button to select the WP pin pull to high

during ISP““

Press [Read] button.

1. Press Read folder to browse firmware image.

2.The position according to where the firmware be put

Press [Run] button and waiting for firmware upgrade

completed .The screen will show “PASS”

Check firmware version
Turn off the power,then press force on “ POWER ” and “ E ”
button at the same time then press on “ MENU ”button to
enter factory mode
Note: Please pay attention ,Don’t change any parameter
which is measured by precise machine before shipping out

1

2

Press [Auto] button

When you writing F/W face on interrupting that cause monitor
shut down .
You can unplug AC power then press “AUTO”button and plug
AC power at the same time to solve this problem then re-write
F/W again.

7. Writing EDID Process

ACER G24

Go to cover page

33

1 Writing EDID Procedure
Hardware Configuration:

1.)Connect the PRINTER PLUG of DDC FIXTURE with the
printer port of Desktop PC. (Refer to figure 1)

2.)Plug USB A PLUG of DDC FIXTURE to USB socket of

Desktop PC (Refer to figure 2)

3.)Extend the DVI cable on DVI EXTENDING SOCKET of DDC

FIXTURE. (Refer to figure 3)

4.1)Connect the D-sub plug of Chroma with D-SUB PLUG of

DDC FIXTURE (Refer to figure 4)

4.2) Take a video cable then connect the D-SUB PLUG and the

D-sub socket of monitor. (Refer to figure 5)

5.)Connect the extended DVI cable to DVI socket of monitor

(Refer to figure 5)

6.)Re-confirm all the connectors are connected well.

DVI EXTENDING

SOCKET

USB A

SOCKET

DVI EXTENDING

SOCKET

PRINTER PLUG

D-SUB PLUG

USB A

PLUG

2. Writing VGA/DVI Process
Chose the folder:”Acer-VGA&DVI” then double click
Select the “Acer-M1&M3-XPEDID-DVI-.exe” to execute it

3.Select Model: Key in password”cedid” then select model
which one you want to write EDID code that it depends on
panel type.

1

4

2

5

3

6

CAUTION: The timing of Chroma shall be setup at T254/ P41
before data recording. the detail setting parameter from
chroma .Please See below photo

cedid

34

ACER G24

Go to cover page

7. Writing EDID Process (continued)

4. Choose "WRITE" from menu then select "Scan S/N And
Write EDID And Test DDC”

5. Key in series number(22 characters) in the input column
Press write button after key in S/N

Writing HDMI Process
Chose the folder:”Acer-HDMI” then double click
Select the “acer HDMI.EXE” to execute it
According to the previous process(step3-step6) to write
HDMI-EDID.

6. When EDID was written successfully that will show below
message on the screen

G

F

E

D

C

B

8.Schematics and Layouts

A

1234567 8910111213

Digital

Video

Input

HDMI

DDC SCL D__

DDC SDA D__

Input

DDC

24LC02B

110 220v/

I321

AC

I302

33v 18v.-.

I320

5v 3 3v-.

I326

DC DC-

Power

Board

P301

Inverter Board

1234567 8910111213

_8.1 SCHEMATICS BLOCK DIAGRAMACER_LCD_G24_

+5V

Brightness Inv On Off,_/

Digital

Video

Input

Analog

Video

Input

P311

DVI D-

P305

DSUB

DDC SCL D1__

DDC SDA D1__

RGBHsVs,,, ,

DDC

24LC02B

I313

I322

Switch

TMDS

Scaler

MST 9259D

EM6A9320BI

DDR

I315

I314

LVDS

P306

LCD Module

LTM240CT03

LTM240CT01

PCB No.

P304

D SUB SCL__

D SUB SDA__

DDC

24LC02B

I312

14 3MHZ.

XTAL

MCU

W79L659A25FL

P303

I306

Flash

W39L040Ap70Z

I307

G

F

E

D

Function

Key

Board

C

B

A

Go to cover page

ACER G24

35

G

F

E

D

C

B

A

1234567 8910111213

4 7U 50V./

C838

CON3

N

2

R846

100

R0805

C830

102P 0805

X7R

C857

0 1U 1206.

X7R

4700P 1KV/

510K

R879

100K 2W/

C843

D807

R874

VBUS

VBUS1

SG6901

103P 0805

X7R

X7R

C818

R847

33 2K.

R0805

3

4 5

VIN

RI RT

SG5841J

SENSE

470P 0805

C831

X7R

X7R

4

LTV 817

I804

1

23

R0805

R843

220

+

1K R0805

R842

470P 0805

4 7U 50V./

R1206

C832

10K

0332W.

C834

+

R851

R850

47U 50V/

R0805

C833

6

R853

100

1N4148

+

VAUX

FB

VDD

510K

R1206

1

2

GND

I803

GATE

7

8

R0805

10

1N4148

R849

R0805

100

D810

21

R845

7N65C

21

Q803

R877

D814

BEAD 6mm/

R1206

510K

R844

R1206

1

2

3

VA

1N4937 G-

D809

1KV X7R

2200P 250V/

100P

C812

C846

R75A

L805

R841

33.

CUT

641

PG108R

D808

2

P6KE150A

PQ2625

T805

FBPWM

R826

27K.

R0805

R828

100

R1206

100P 0805

C814

X7R

R825

10K

R827

IMP

VDD

6

15

C815 NC

R0805

47K

R0805

X7R

5

IPFC

RANGE

16

R830

102P 0805

IEA

OVP

C813

R0805

24K

3

4

RI

OTP

FBPFC

VEA

17

18

1U 1206

X7R

R824

2

19

C809

R1206

1

VRMS

IAC

20

R0805

I801

604K

R1206

R813

61 9K.

R1206

R1206

604K

R823

24M.

24M.

R812

X7R

1U 1206

R810

R811

C811

043 2W.

R815

C816

102P 0805

X7R

27K.

R0805

102P 0805

C817

10 11

AGND SS

9

IPWM

OPWM

12

8

FBPWM

GND

13

7

ISENSE

OPFC

14

SCK055

R801

R1206

R803

510K

1

2

1000P 250V/

C808

RING CHOKE

1

T803

2

680P 250V/

C829

1

C850

4700P 1KV

X7R

4A 800V/

D802

043 2W.

R814

2

1uF 450V/

MEF P15/

MEF P15/

4

C855

X7R

1uF 450V/

280uH

C856

R1206

-

+

4700P 1KV

L801

G

510K

3

4

3

4

3

1000P 250V/

680P 250V/

R802

C803

C849

ET 24-

C802

C828

3

L

1

0 47U 275V./

T802

0 33U 275V./

F801

P801

C806

3 15AH250V.

D812

1N4007 G-

1234567 8910111213

_8.2 SCHEMATICS POWER BOARDACER_LCD_G24_

D811

1N4007 G-

23

X7R

R0805

R1206

0 1 0805.

30K

10K

R0805

C841

1000U 25V/

1000U 25V/

1000U 25V/

1000U 25V/

D816

FCH30A10

+

C839

+

C835

+

C836

28U.

+

C837

L803

10

52V.

D815

FCH30A10

20

R1206

X7R

220P 100V X7R/

C845

20

R1206

1U 1206

C826

R873

R872

R809

R0805

104P 0805

D817

X

X7R

R0805

C819

VDD

R831

10K

R0805

1N4148

D805

21

R1206

R807

10K

1

10

R832

100

3

2200P 250V/

R1206

C805

680k

R805

150U 450V/

R1206

LT2A06 G-

6

C801

X7R

680k

D804

1KV X7R

103P 1KV

R804

R0805

R833

15K

222P 1206

C810

X7R

R820

10

R0805

R0805

R0805

R829

100

R1206

10K

FBPWM

1N4148

R817

R821

200

033 2W.

R818

1KV X7R

100P

21

C847

D806

17A 800V/

Q801

R1206

R806

24K

C807

10

1

100P

+

R1206

4

100P 1KV

X7R

2

C848

R878

680k

100K 2W/

4700P 1KV/

C804

P6KE180A

D801

CUT

3

2

C858

5A 600V/

R869

BEAD 6mm/

D803

4
5

CUT

3

0221W.

5

PQ2625

T804

L804

L806

Q802

FQPF13N50C

BEAD 6mm/

R868

VBUSVBUS1

PQ 3225-

T801

AP431 1%

R855

20K

R858

R859

4

LTV 817

1

I806

I807

VDD

R1206

47K.

R0805

2200P 0805

X7R

Q806

KN2907A

R860

270

C840

R60A

R856

R60A

KN2222A

VAUX

VA

Q807

R875

100

R854

22K

ZD801

22B

R857

1K

R60A

123

PCB No.

R1206

x

R876

AP431 1%

R0805

18 7K 1.%

X7R

I805

R839

1U 1206

C820

X7R

R0805

0 01U 0805.

C821

X7R

1U 1206

C827

12

220P 1KV X7R

C822

20A 150V/

D813

R870

20 R1206

R871

20

R1206

1000U 35V/

C823

+

1000U 35V/

C824

+

L802

28U.

1000U 35V/

C825

+

24V

4

LTV817

I802

1

R836

23

1 2K 0805.

1K 0805

169K 1%

***

R838

R835

R822

47K.

9

6832194100P01

G

F

E

12345678910111213

20.

OFF

52V.

52V.

52V.

GND

GND

GND

52V.

52V.

D

P802

ON OFF-

52V.

5V RTN-

BRI

C

B

10

20.

ON OFF-

BRI

GND

GND

GND

TO INV

123456789

P803

24V

24V

GND

24V

24V

A

Go to cover page

ACER G24

36

G

F

E

D

C

B

A

8.3 ACER __LCD_G24 SCHEMATICS_INTERFACE_BD_POWER

1234567 8910111213

R310 47K

Q301

MMBT3904

TP445

TP20

TP21

LCD EN_3

47K

Q309

MMBT3906

D301

MM4148

R489

47K

TP19

TP446

GND

R309 30KR488

220u 25V/

10K

C308

R307

+3V3

VCC LCD1_

TP14

FOR POWER SAVING CONTROL

OFF3

GND

220u 25V/

1

AIC1117A 33PYTR-

ADJ GND()

C312

I301

+5V

AUDIO EN_

AUDIO DET_

BKLT EN_

BKLT ADJ_

OFF

JWT A2001WV2 13P--

13

GND

GND

GND

6789101112

+.51V

+.51V

+.51V

5V RTN_

+.51V

P301

12345

1234567 8910111213

SOT 223-

+3V3

TP17

GND

TP1

TP13

R301 0

GND

R570 4 7K.

TP549

Q331

MMBT3904

TP546

10K

R568

+5V

VOUTVIN

TAB

23

4

C313

100u 10V/

GND GND GND GND

1

2

3

I316 FDS4435

C309

01u.

TP18

2 3

Q302

AO3401

1

GND

C310

01u.

FB303

C311

01u.

R308

100K

4

5

6

H161R315 8-

7

8

5

6

H161R315 8-

7

8

3

M301

2

1

4

3

M302

2

1

PBY201209T 300Y S--

VCC LCD2_

VCC LCD2_

GND

TP15

TP16

1

AIC1084 33PMTR-

ADJ GND()

TAB

4

+5VD

I320

VOUTVIN

23

TO 263-

TP547

GND

GND

4

5

6

7

8

C535

47u.

TP544

C537

47u.

+5VD

+5VD

1

ADJ GND()

I326

AIC1117A 33PYTR-

C493

01u.

C301

01u.

C302

01u.

C304

01u.

C305

01u.

C306

01u.

C307

01u.

FB301 PBY201209T 170Y S--

FB302 PBY201209T 170Y S--

VCC LCD1_

+5V

R496 100

R306 100

R305 100

SOT 223-

TP455

MMBT3904

Q325

Q315

MMBT3904

BKLT ADJ_6

10uF

TAB

4

C536

VOUTVIN

23

+3V3D

TP470

TP4

TP5

TP7

TP8

R304 100 NC()

R303 100 NC()

R302 5 6K NC.( )

+3V3

TP9
TP10
TP11
TP12

AUDIO DET_3

PCB No.

6832194600P0

4

5

6

H161R315 8-

7

8

5

6

H161R315 8-

7

8

3

M303

C491

100u 10V/

2

1

GND

4

3

M304

2

1

1

AIC1084 18PMTR-

ADJ GND()

TAB

4

100u 10V/

C314

VOUTVIN

TP428

I302

TO 263-

23

+1V8

TP22

GND

GND

10uF

AP1117E25L 13-

ADJ GND()

TAB

100u 10V/

C538

1

4

C315

VOUTVIN

23

TP23

TP545

+5VD

I303

TO 252 GOI--

+_2V5 VDDM

GND

Q314

MMBT3904

TP542

R567 100

TP543

HI POWER ON==>

TP458

R503

47K

TP459

BKLT EN_3OFF 3

10K

+3V3

R565 10K

R502

TP460

+5V

+5V

R504 10K

+5V

GND

R505 1K

Q313

MMBT3904 NC()

TP456

R501

47K NC()

TP457

AUDIO EN_3

10K NC()

+5V

R500

G

F

E

D

C

B

A

Go to cover page

ACER G24

37

1234567 8910111213

+3V3

R507 4 7K.

G

TP110

LED A_

GND

+_3V3 VDD

MMBT3904 NC()

Q324

A

+_3V3 VDD

CAM MIC DIAG__8

1234567 8910111213

_8.4 SCHEMATICS INTERFACE_BD_MCU AND FUNCTION KEYACER_LCD_G24_

+3V3

R526

10K NC()

TP469

VSS SDA

4 5

SCL

R345 0

MSDA

WP

678

R344 0

MSCL

C

C324

01u.

TP67

WE

R328 0

GND

01u.

SELECT

VGA SDA 3V_ _ TXD

R524 0

123

I309

A0A1A2

VCC

WP

R337

10K

+_3V3 VDD

R338

10K

D

TP81
TP82

R333

47K NC.( )

R334

47K NC.( )

JWT A2001WV2 4--

+_3V3 VDD

P302

GND

TP100
TP101

24LC16B

TP46

TP438

TP47

TP48

ISPTDINT

TRST

DVI HDMI SW__

TP99

TP102

TP103

TP600

TP439

TDO

TP98

E

TP440

TP97

TP441

TMS

TP442

TCK

GND

123

+_3V3 VDD

123

RXD

TXD

4

4

F

TP53

TP49

TP51

TP50

TP52

HP DET DVI__

HWRESET

ALE

DVI DET_

DSUB DET_

+3V3

LED B ACTIVE LOW_

TP108

LED B_ LED BLUE_

R506 4 7K.

LED A ACTIVE LOW_

GND

C320

1

47KNC.( )

R322

VCC

3

B

OUT

2

10u 50V NC/()

I305

STL8110PCH300

C318

TP54

+3V3

+_3V3 VDD

TP465

GND

TP116

TP117

TP113

01u.

C332

MMBT3904

Q317

R361 10K

MMBT3906

LED AMBER_

Q304

TP463

MMBT3904

TP540

TP109

TP105

01u.

C331

Q316

R357 10K

MMBT3906

+5V

R354 4 7K.

Q303

GNDGND GND

GNDGND

GND

GND

+5V

R360 4 7K.

GND

DOWN

POWER

MENUUPSELECT

R339

10K

R340

10K

R341

10K

R342

10K

R343

10K

R352

10K

R347 1K

R348 1K

R346 1K

R349 1K

R350 1K

R351 1K

TP90

C325

01u.

TP91

C326

01u.

TP92

C327

01u.

TP93

C328

01u.

TP94

C329

01u.

TP601

C330

01u.

GND

123456789

SELECT

EXE

MINUS

MENU

PLUS

POWER

LED AMBER_

LED BLUE_

10

P303 JWT A2001WV2 10p--

+_3V3 VDD

RD6

WP

R336

10K

C322 22p

TP84

GNDGND

R478 4 7K NC.( )

R479 4 7K NC.( )TP89

R477 4 7K NC.( )

+_3V3 VDD

AUDIO DET_2

AUDIO EN_2

OFF 2

DVI HDMI SW__ 5

TP85

TP86

TP87

TP88

AD0

24MHz

AD1

X301

AD2

R335

47K.

C321 22p

TP77

A10

A9

AD3

A11

A8

TP80

TP83

TP78

TP79

R329

10K

R330

10K

R331

10K

R332

10K

31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

TP76

P37RD./
XTAL2
XTAL1
NC
AVSS
VSS
VSS
NC
P4 0.
P7 0.
P7 1.
P7 2.
P7 3.
P6 0.
P6 1.
P6 2.
P6 3.
P20A8./
P2 1 A9./
P2 2 A10./
P2 3 A11./
NC
NC
NC
NC
NC

+_3V3 VDD

TP96

TP95

NCNCNCNCNC

7475767778

RXDVGA SCL 3V__

R470 4 7K NC.( )

DSUB DET_4

9

P5 0.

P1 7.
P1 6.
P1 5.
P1 4.

P4 2.

TRST

TDO

TD
TMS
TCK
P7 7.
P7 6.
P7 5.
P7 4.

AVDD

VDD
VDD

MAD5

MAD6

R316 4 7K NC.( )

R317 4 7K NC.( )

R473 4 7K NC.( )

R474 4 7K NC.( )

R472 4 7K NC.( )

R475 4 7K NC.( )

8
7
6
1
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81

I306

W79L659A25FL

MAD4

MAD3

R314 4 7K NC.( )

R315 4 7K NC.( )

R471 4 7K NC.( )

LED A_

A18
A17
A16
A15

TRST
TDO
TD
TMS
TCK
UP
DOWN

MENU

SELECT

MAD2

MAD0

MAD1

R311 4 7K NC.( )

R313 4 7K NC.( )

R312 4 7K NC.( )

R325 100

R327 100

R467 0

HP DET DVI__5

BKLT EN_2

HWRESET6

DVI DET_5

LCD EN_2

WP EN_4

INT6

TP70

MSDA

MSCL

POWER

234

5

NCNCNC

NC

NC

P2 6 A14./

P2 5 A13./

P2 4 A12./

NC

79

A12

A13

TP65

TP68

A14

TP63

P3 2 INT0./

P3 3 INT1./

P3 4T0.

P35T1./

P36WR./NCNCNCNC

P6 4 SCL1./

P2 7 A15./

/PSTN

P4 1.

ALE

/EA

EA

MALE

PSEN

R522 4 7K NC.( )

TP57

TP60

TP71

ISP

P3 0 RXD./

P4 3.

P3 1 TXD./

P6 5 SDA1./

P6 7 SDA2./

P6 6 SCL2./

6766656463626160595857

6869707172

SDA1

SCL2

SCL1

R324 0R

R323 0R

R320 0RR523 0

DVI SCL 3V__

VGA SDA 3V__

VGA SCL 3V__

17

18192021222324252627282930

P5 5.

P5 6.

P5 7.

P0 7 AD7./

P0 6 AD6./

P0 5 AD5./

SDA2

R319 0R

DVI SDA 3V__

ALE6

RST

10111213141516

P5 1.

P5 2.

P5 3.

RST

P5 4.

P1 3 PWM3./
P1 2 PWM2./
P1 1 PWM1./
P1 0 PWM0./

P0 0 AD0./
P0 1 AD1./
P02AD2./

P0 4 AD4./

P0 3 AD3./

73

80

MAD7

R318 4 7K NC.( )

R525 47K NC()

R476 4 7K NC.( )

R468 4 7K NC.( )

R469 4 7K NC.( )

USB DET_8

USB EN_8

LED B_

E

R481 0NC()
R482 0NC()
R483 0NC()
R484 0NC()
R485 0NC()

+_3V3 AVDD

+_3V3 VDD

GND

01u.

01u.

TP468

TP28
TP29
TP30
TP31

TP431
TP432
TP433
TP434
TP435

C317

C487

+3V3

PBY201209T 300Y S--

FB304

+_3V3 VDD +3V3

TP24

PCB No.

6832194600P0

R510 X4 7K.

2SK3018

Q320

1

VGA SDA 3V__

R511 X4 7K.

2SK3018

Q321

1

VGA SCL 3V__

MAD0

3 2

A0

01u.

I304

GND

PBY201209T 300Y S--

FB339

+_3V3 AVDD

C488

TP429

20

+_3V3 VDD

C316

01u.

10

74LVC373A

MALE

TP44

+_3V3 VDD

GND

MAD1

MAD2

MAD3

MAD4

MAD5

MAD6

MAD7

13 12

14 15

17 16

18 19111

4 5

7 6

8 9

D0 Q0

D1 Q1

D2 Q2

D3 Q3

D4 Q4

D5 Q5

D6 Q6

D7 Q7OCG

VCCGND

A1A2A3A4A5A6A7

TP33

TP25

TP42

TP43

TP26

TP27

TP32

R508 X4 7K.

2SK3018

Q318

1

DVI SDA 3V__

R509 X4 7K.

2SK3018

Q319

1

DVI SCL 3V__

+_3V3 VDD

TP500

TP501

TP502

TP503

47KNC.( )

2

R512

3

DVI SDA_56,

+_3V3 VDD

47KNC.( )

2

R513

3

DVI SCL_56,

AD 0 3[..] 6

+5V

TP467

A14

A13

A12

A18

W39L040AP70Z

30 22

1

A17 CE

A18

GND

R520

SCL1

SDA1

SCL2

SDA2

GND

TP73

TP74

TP72

TP75

+5V

3

GND

2 4

TC7SU04FU

I308

10K

16

VSS

C323

01u.

5

+_3V3 VDD

2

A16

OE

24

A16A9A17

A15

WE

PSEN

A10

A15

A11

25428

29

3

A11

A12

A13

A14

31

WE

272623

A8

IO8

TP69

TP58

A7

21

MAD7

TP66

IO7

WR 6

A6

IO6

MAD6

TP64

A5

IO5

MAD5

TP62

A4

IO4

MAD4

TP61

A3

98765

IO3

MAD3

TP59

47K.

A2

VCC

IO2

MAD2

TP56

R321

A1

A0A1A2A3A4A5A6A7A8A9A10

IO1

MAD1

TP55

A0

121110

13141517181920

MAD0

I307

GND

+_3V3 VDD

GND

GND

32

+_3V3 VDD

C319

01u.

+_3V3 VDD +_3V3 VDD

47KNC.( )

3

VGA SDA_4

3

VGA SCL_4

R514

+5V

47KNC.( )

R515

+5V

2

2

G

F

E

D

C

B

A

Go to cover page

ACER G24

38

G

F

E

D

C

B

A

1234567 8910111213

GNDA

C35901u.

GNDA

NC

R392

47

0 047u.

C358

RIN0M 6

D325BAV99

+5V

75 1/%

R391

C357

TP169

TP168FB311

GNDA GNDA

CONNECTOR DB15

P304

17

12

411310291

D324BAV99

+5V

75 1/%

R388

FB309

C353

TP162

TP161

10

GREEN

0R

R387

0 047u.

C344

GIN0P 6

TP159

TP158

470

TP156TP157

SOG 6

R486

1000p

C489

GNDA

47

TP444C34301u.

TP443

GNDA

0 047u.

BIN0M 6

NC

R386

C342

D314BAV99

+5V

75 1/%

R385

FB307

C341

TP155

TP154

BLUE

0R

R384

10

0 047u.

C340

BIN0P 6

GNDA

TP152

TP151

TP150

TP149

MMSZ5232B

+_5V VGA

TP134

VGA RX_

R382NC

VGA SCL_3

VGA TX_

TP141

D308

VGA TX_

TP140

R381NC

TP139

VGA SDA_3

VGA RX_

TP146

TP142

R37647K.

DSUB DET_3

R380

0

R378

0

RED

GNDA

C35501u.

GNDA GND

TP166

0R

NC

TP165

R390

10

TP164

0 047u.

C356

TP163

RIN0P 6

R389

47

0 047u.

C354

GIN0M 6

16

8

15

7146135

TP135

TP138

D306 NC

MMSZ5232B

D305

R3750

R3740

TP123

TP137

74LVC14

TP136

DSUB SCL-

DSUB SDA-

GND

DSUB

Connector

TP124

FB305

C336

27p

R371

22K.

R364100

TP122

3 4

I311B

TP121

1 2

+3V3

74LVC14

I311A

HSYNC

SBK201209T 431Y S--

GNDGNDGND GNDGND

TP130

R362NC

D304 NC

MMSZ5232B

D303

27p

22K.

R369100

11 10

74LVC14

13 12

74LVC14

TP131

C335

R370

I311E

I311F

FB306

TP129 TP132

TP128

VSYNC

SBK201209T 431Y S--

R367NC

1234567 8910111213

_8.5 INTERFACE_BD_ACER_LCD_G24 SCHEMATICS_ VGA INPUT

GND

D312 NC

MMSZ5232B

D311

D310 NC

MMSZ5232B

D309

47p

47p

D313

MMSZ5232B

C339

C338

R379100

DSUB SDA-

DSUB SCL-

DDC WP_5

DDC WP_

100

R377

NC

TP127

C334

5 6

74LVC14

R368100

VSYNC0 6

I311C

TP118

+_5V VGA

+5V

MM4148

MM4148

D307

D302

TP449

GND

MMBT3904

R49747K

Q305

MMBT3906

Q312

R373

47K.

R372

47K.

TP452

TP453

10K

R492

TP133

+3V3

GNDGNDGND GND GND

NC

C333

TP120

GND

R363100

HSYNC0 6

9 8

74LVC14

I311D

PCB No.

6832194600P0

G

TP144
TP143

SCLWPVCC

24LC02B

VSSSDA

A2

678

A0

A1

2345

F

TP126

R493

47K

I312

1

C337

1u

TP125

+_5V EDID

E

R36547K

WP EN_3

D

C

B

GND

01u.

+3V3

C361

A

Go to cover page

ACER G24

39

G

F

E

D

C

B

A

P S GND GNDA must be connected.. , .

1234567 8910111213

GNDAGND

C525

0 1uF.

NC9

5V SUPPLY

1234567891011121314151617181920

C526

1uF

+_5V EDID

TP451

R401 100

DVI

Connector

TP190

TP454

BAV99

C345

01u.

BAV99

C346

01u.

DVI RX1_ - DVI RX0_ - DVI RX0_ + DVI RXC_+DVI RX1_+DVI RX2_- DVI RXC_-DVI RX2_+

BAV99

C347

01u.

BAV99

GND

DVI D-

GND

TP189

GND

D333

MMSZ5232B

R517

47K

+5V

R383

47K.

TP148 D319

D316

D317

D318

28

GND

+3V3

GND

29

30

GRN

RED

BLU

HS

R400 4 7K.

DVI DET_3

47p

47p

D332

MMSZ5232B

TP182

TP183

RXC+

RXC-

GND

DVI RXC_+

DVI RXC_-

C363

C364

GND

RX5+

RX5-

24LC02B

VSSSDA

RX0+

RX0-

GND

DVI RX0_+

DDC WP_4

DDC SDA D1__

DDC SCL D1__

R397 100

R399

100

DDC WP_

678

SCLWPVCC

A0A1A2

45

HP

DVI RX0_-

I313

123

RX3+

GND

5V

+_5V DVI

R398 1K

GND GND GNDGND GND

C360

1u

RX1+

RX1-

RX3-

GND

SDA

VS

DVI RX1_-

DVI RX1_+

TP172

D328 NC

D329

MMSZ5232B

D330 NC

D331

MMSZ5232B

+_5V DVI

C362

01u.

R394

47K.

R395

47K.

+5V

31

RX4+

RX4-

SCL

DDC SCL D1__

DDC SDA D1__

D326 MM4148

+_5V EDID

TP173

D327

XMM4148

GND

32

RX2+

27

RX2-

123456789101112131415161718192021222324C1C2C3C4C5

DVI RX2_-

DVI RX2_+

P305

1234567 8910111213

_8.6 INTERFACE_BD_HDMI AND DVI INPUTACER_LCD_G24 SCHEMATICS_

DDC SDA

HPD

CEC

13

DDC SDA D__

HPD I_

21

HOTPLUG DET IN__HOTPLUG DET OUT__

DDC SDA D__

8

GND

362751

DDC SDA D2__

CEC DDC GND/

DDC SCL

+5V

1817151619

GND GND

DDC SCL D__

DDC SDA D__

Q329

MMBT3904

I325

CM2021

HP DET HDMI__ 6

PCA9515ADP

I328

1u

P311

D341

MMSZ5232B

01u.

TP481

1K

HPD I_

R437 100

TP487

TP486

+3V3

C500

C496

R534

TP482

C486

01u.

GND

+_5V HDMI

Q323

MMBT3904

TP476

DDC SDA D__

DDC SCL D__

+3V3

R555

47K

R530 100R

R531 100R

GND

C498

X27p

C499

X27p

D347

MMSZ5232B

47K

47K

DDC WP_

R532

R533

+_5V HDMI

D342 MM4148

+5V

D340 XMM4148

TP485

HP DET DVI__ 3

D315 MMSZ5232B

GND

TP483

TP484

GND

24LC02B

VSSSDA

45

678

SCLWPVCC

A0A1A2

I321

123

C495

1u

GND

+_5V EDID

HDMI CONNECTOR

Dat2 shield

Dat1 shield

Dat0 shield

clk shield

DAT0+

DAT1+

DAT2+

DAT0-

DAT1-

DAT2-

GND1

GND2

clk+

clk-

HDMI RX0_+

HDMI RX1_+

HDMI RX0_-

25

TMDS CLK O_-

TMDS GND5_

TMDS GND4_

TMDS CLK_-

GND

4

25811794613101220

GND

C497

0 1uF.

HDMI RXC_-

DDC SCL D__

22

23

24

DDC CLK OUT__

CEC OUT_

CE REMOTE IN__

DDC CLK IN__

DDC SCL D__

HDMI RXC_-

GND VCC

SCL0SCL1

ENNC

DDC SCL D2__

R535 4 7K.

R536 4 7K.

DDC DAT OUT__

DDC DAT IN__

SDA0SDA1

21

GND

HDMI RXC_+

HDMI RXC_-

HDMI RX1_-

HDMI RX2_+

HDMI RX2_-

HDMI RX1_+

32

TMDS GND7_

TMDC D1 O_+

TMDS GND2_

TMDC D1_+

HDMI RX1_+

31

HDMI RX1_-

30

TMDS D1 O_-

TMDC D1_-

HDMI RX1_-

HDMI RX0_+

29

TMDS GND6_

TMDS D0 O_+

TMDS GND3_

TMDS D0_+

HDMI RX0_+

28

HDMI RX0_-

27

TMDS D0 O_-

TMDS D0_-

HDMI RX0_-

HDMI RXC_+

26

TMDS CLK O_+

TMDS CLK_+

HDMI RXC_+

HDMI RX2_+

HDMI RX2_-

33

34

353836

37

TMDS D2 O_-

TMDS GND8_

TMDS D2 O_+

GND2

ESD BYP_

TMDS GND1_

LV SUPPLY_

TMDS D2_+

TMDS D2_-

GND1

HDMI RX2_+

HDMI RX2_-

PCB No.

6832194600P0

GND

TS3DV520RHUR

GND

GND

GND

495344

GND

NC4

level must 3 3V 2V<= . & >

GND

NC3

52

DVI HDMI SW 1 the voltage__=,

GND

NC2

GND

NC1

55154

2139243328

GND

GND

GND

GND

SEL

0 DVI INPUT 1 HDMI INPUT:,:

DVI HDMI SW__ 3

C348

+5V

GND

PBY201209T 300Y S--

FB343

22uF 50V/

C515

+3V3HDSW+3V3

C516

01u.

C517

01u.

C518

01u.

C519

01u.

C520

01u.

C521

01u.

DVI RX2_+

DVI RX0_-

DVI RX0_+

DVI RX1_-

DVI RX1_+

DVI RX2_-

DVI RXC_+

HDMI RX2_+

DVI RXC_-

HDMI RX1_-

HDMI RX1_+

HDMI RX2_-

HDMI RX0

HDMI RX0_+

HDMI RXC_-

HDMI RXC_+

DDC SCL D1__

DDC SCL D2__

DDC SDA D2__

DDC SDA D1__

_-

+3V3HDSW

484743

42

373632

31

41

30293545463440

I322

0B1

1B1

2B1

3B1

4B1

5B1

6B1

7B1

2B2

6B2

7B2

4B2

1B2

0B2

5B2

9B1

8B1

A8

19

R529 100

R528 100

DVI SCL_36,

3B2

A3A2A1

873

RX1- 6

RX1+ 6

A0

2

RX2- 6

RX2+ 6

A4

A5

A7

A6

11

12

15

14

RXC- 6

RXC+ 6

RX0+ 6

RX0- 6

GND

274103818

262322

VCC

VCC

TP490

25

9B2

8B2

A9

20

505556

1

VCC

VCC

VCC

VCC

VCC

13

9166

GND

GND

17

TP491

DVI SDA_36,

01u.

BAV99

D320

C349

01u.

BAV99

D321

C350

01u.

BAV99

D322

C351

01u.

BAV99

D323

G

F

E

D

C352

01u.

C522

01u.

C

B

A

Go to cover page

ACER G24

40

G

F

E

D

C

B

A

1234567 8910111213

GND

AR8

AR5

AR0

AR7

AR3

AR2

AR4

AR1

AR6

+3V3D +3V3DAVDD MCLK_ AVDD LPLL_

PBY201209T 300Y S--

FB317

22u 50V/

C374

GND

C375

01u.

TP195

PBY201209T 300Y S--

FB318

22u 50V/

C376

GND

C377

01u.

TP196

AVDD APLL_

AVDD LPLL_

R407 10 1/%

RX1N

292827

197

RX0-5

RX0+5

R406 10 1/%

RX0P

RX0P

RX0N

LVA2M

LVA1P

198

RXC+5

R405 10 1/%

RX0N

262524

RXCKP

LVA1M

199

RXC-5

R404 10 1/%

RXCKP

23

RXCKN

LVA0P

201

200

DVI SCL_35,

DVI SCL_

R403 10 1/%

RXCKN

15

DDC SCL_

LVA0M

202

DVI SDA_35,

DVI SDA_

14

DDC SDA_

LVB4P

205

HP DET HDMI__5

DDC HPD_

LVB4M

HP DET HDMI__

GND

R402 100

TP202

13

8

MCL

LVB3M

LVB3P

208

207

206

C389

22p

TP203

7

MDA

LVBCKM

LVBCKP

209

210

35

XOUT

AVDD MPLL_

AVDD PLL2_

AVDD APLL_

AVDD LPLL_

AVDD18 DVI_

AVDD18 ADC_

AVDD ADC_
AVDD ADC_

AVDD MCLK_

LVB2M

LVB2P

212

211

14 318MHz.

XIN

AVDD PLL_
AVDD PLL_

AVDD DVI_
AVDD DVI_

LVB1M

LVB1P

213

X302

36

VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC

VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM

VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP

GPO 9[]
GPO 8[]
GPO 7[]
GPO 6[]
GPO 5[]
GPO 4[]
GPO 3[]
GPO 2[]
GPO 1[]
GPO 0[]

FSP

BSP
BB3N
BB3P
BB2N
BB2P
BB1N
BB1P
BB0N
BB0P
BG3N
BG3P
BG2N
BG2P
BG1N
BG1P

LVB0M
LVB0P

214

GND GND

C382

22p

TP201

AVDD PLL_

AVDD MPLL_

38
19

37

AVDDPLL2

131

16

250

22

50

48
61

107

20

2
78
96
143
160
181
225

88
105
117
128
134
142
151
159

12
70
170
184
203
216
236
252

248
247
246
245
244
243
242
241
240
239

238
237
234
233
232
231
230
229
228
227
224
223
222
221
220
219
218
217

AVDD18 DVI_

AVDD18 ADC_

AVDD ADC_

AVDD MCLK_

AVDD DVI_

VDDC

VDDM

VDDP

HWRESET3

HSYNC04

54

SOGIN1

GIN1P

FR0N

FR0P

174

173

FR1PGIN1M

17553

52

BIN1P

FR1N

176

51

BIN1M

FR2N

FR2P

177

VSYNC04

47

VSYNC0

FR3P

179

178

46

HSYNC0

FR3N

180

TP505

TP511

TP506

TP507

TP508

TP509

TP504

GND

R413

10K NC()

BKLT ADJ_2

C416

01uNC.( )

AVDD DVI_

GND

C418 0 1u.

MCLKZ

MCLK

109

110

C417 0 1u.

REFP

BADR 0[]

113

BADR 1[]

TP237

21

REXT

RASZ

112

114

R412 390 1/%

TP236

CASZ

115

R411 100

TP235

77

9

HWRESET

GPIO 2[]

DQS 3[]

WEZ

80

116

76

GPIO 0[]

GPIO 1[]

DQS 2[]

DQS 1[]

101

C420 0 1u.

C419 0 1u.

TP239

TP240

251

636264

PWM 0[]

REFM

RMID

3

GND

10

GND

11

GND

17

GND

18

GND
GND

31

GND

34

GND

49

GND

60

GND

69

GND

79

GND

87

GND
GND

103

GND

108

GND

111

GND

129

GND

130

GND

141

GND

144

GND

161

GND

171

GND

182

GND

183

GND

204

GND

215

GND

226

GND

249

GND

253

GND

235

GND

257

PAD GND

118

MADR 0[]

119

MADR 1[]

120

MADR 2[]

121

MADR 3[]

122

MADR 4[]

123

MADR 5[]

124

MADR 6[]

125

MADR 7[]

126

MADR 8[]

127

MADR 9[]

132

MADR 10[]

133

MADR 11[]

AR11

AR9

AR10

MVREF

MCLKE

104

106

AUSD9

AUSCK9

AUWS9

AUMCK9

INT3

WR3

AUSCK

255

AUSCK GPIO 4/[]

MDATA 27[]

AUMCK

254

AUMCK GPIO 3/[]

MDATA 26[]

86

MDATA 25[]

899490

MDATA 24[]

MDATA 23[]

9192939597

MDATA 22[]

INT

74

INT

MDATA 21[]

WRZ

MDATA 20[]

AUWS

MUTE

AUSD

75

DQS 0[]

158

136

256

4

6

1

5

AUSD GPIO 6/[]

SPDIFO GPIO 7/[]

AUMUTE GPIO 8/[]

AUWS GPIO 5/[]

AUPWM GPIO 9/[]

MDATA 31[]

MDATA 30[]

MDATA 29[]

MDATA 28[]

DQM 1[]

DQM 0[]

8182838485

135

102

RD3

RDZ

MDATA 19[]

RD

ALE3

ALE

717273

ALE

MDATA 18[]

98

AD3

68

DBUS 3[]

MDATA 17[]

99

AD2

67

DBUS 2[]

MDATA 16[]

100

AD1

66

DBUS 1[]

MDATA 15[]

137

65

DBUS 0[]

MDATA 14[]

138

AD 0 3[..]3

AD0

MDATA 13[]

139

MDATA 12[]

140

172

NC

MDATA 11[]

145

169

NC

MDATA 10[]

146

MDATA 9[]

MUTE

168

MDATA 8[]

147

AUSD

167

MDATA 7[]

148

AUWS

166

MDATA 6[]

149

AUMCK

AUSCK

164

165

MDATA 5[]

152

150

DVI SDA_

DVI SCL_

162

163

NCNCNCNCNCNCNC

MDATA 4[]

MDATA 2[]

MDATA 3[]

153

154

575655

58

59

RIN1P

RIN1M

HSYNC1

VSYNC1

I314A

MST9259D

MDATA 1[]

MDATA 0[]

155

156

157

RIN0P4

45

RIN0P

FG0P

185

RIN0M4

444342

RIN0M

FG0N

186

GIN0P4

SOG4

SOGIN0

GIN0P

FG1N

FG1P

188

187

BIN0P4

GIN0M4

41

GIN0M

BIN0P

FG2N

FG2P

189

40

BIN0M

LVA4P

190

BIN0M4

39

191

LVA4M

LVA3P

192

RX2+5

RX2P

LVA3M

193

RX2-5

R409 10 1/%

R410 10 1/%

RX2P

RX2N

33

32

RX2N

LVACKP

195

194

RX1-5

RX1+5

R408 10 1/%

RX1P

30

RX1P

RX1N

LVACKM

LVA2P

196

+3V3D AVDD ADC_

PBY201209T 300Y S--

FB313

22u 50V/

C365

C366

01u.

TP191

C367

01u.

PBY201209T 300Y S--

22u 50V/

C368

C369

01u.

TP192

1234567 8910111213

+1V8 AVDD APLL_

FB314

_8.7 INTERFACE_BD_SCALERACER_LCD_G24 SCHEMATICS_

PCB No.

6832194600P0

GND

MDATA20WR

MDATA18

MDATA19

TP216

TP215

LVA3P

LVA3M

MDATA16

MDATA17

MDATA15

MDATA 16 31[..]7

MDATA14

DQS0

DQS2

DQS1

SBA0 7

SBA0

SBA1 7

SBA1

RAS 7

RAS

CAS 7

VDDM

TP234

LVB0M

CAS

SWE 7

TP233

LVB0P

SWE

DQS3 7

TP232

TP231

LVB1P

LVB1M

DQS3

DQS2 7

TP230

LVB2M

DQS1 7

TP229

LVB2P

DQS0 7

CKE

MCLK+

MCLK-

MVREF

AR 0 11[.. ] 7

1K 1/%

01u.

0 01u.

R415

C421

C422

GND

MCLK+ 7

MCLK- 7

CKE 7

MVREF 7

R414

1K 1/%

TP238

DQM1

DQM0

DQM0 7

DQM1 7

TP227

TP228

LVBCKP

LVBCKM

TP225

TP226

LVB3P

LVB3M

MDATA29

MDATA31

MDATA30

TP224

TP223

LVA0P

LVA0M

MDATA28

MDATA26

MDATA27

TP222

TP221

LVA1M

LVA1P

MDATA23

MDATA24

MDATA25

TP220

TP219

LVA2P

LVA2M

MDATA22

MDATA21

TP218

TP217

LVACKP

LVACKM

FPC FFC 30S 100C---

30

31

MDATA12

MDATA13

P306

1234567891011121314151617181920212223242526272829

32

MDATA11

MDATA9

MDATA10

MDATA7

MDATA8

VCC LCD2_

MDATA6

MDATA5

MDATA4

MDATA3

MDATA1

MDATA0

MDATA2

GND

MDATA 0 15[.. ] 7

PBY201209T 300Y S--

FB323

22u 50V/

C407

GND

VDDP+3V3D

C408

01u.

TP214

C409

01u.

C410

01u.

C411

01u.

C412

01u.

C413

01u.

C414

01u.

C415

01u.

LVA3P

PBY201209T 300Y S--

FB322

VDDM+_2V5 VDDM

GND

22u 50V/

C390

C391

01u.

C392

01u.

C393

01u.

C394

01u.

C395

01u.

C396

01u.

C397

01u.

22u 50V/

C398

C399

01u.

TP205

C400

01u.

C401

01u.

C402

01u.

C403

01u.

C404

01u.

C405

01u.

C406

01u.

LVB3M

LVBCKP

LVB3P

PBY201209T 300Y S--

FB321

TP204

LVBCKM

+1V8

VDDC

LVB2P

GND

GND

LVB2M

LVB1P

LVB1M

22u 50V/

01u.

01u.

22u 50V/

01u.

01u.

C383

C384

C385

C386

C387

C388

LVB0M

LVB0P

PBY201209T 300Y S--

FB319

GND

AVDD DVI_+3V3D

TP199

+3V3D

PBY201209T 300Y S--

FB320

AVDD PLL_

GND

TP200

+1V8 +1V8

PBY201209T 300Y S--

FB337

22u 50V/

C378

AVDD18 DVI_

GND

C379

01u.

TP197

PBY201209T 300Y S--

FB338

22u 50V/

C380

AVDD18 ADC_

GND

C381

01u.

TP198

+3V3D

PBY201209T 300Y S--

FB315

22u 50V/

C370

AVDD MPLL_

C371

01u.

TP193

+3V3D

PBY201209T 300Y S--

FB316

22u 50V/

C372

AVDDPLL2

C373

01u.

TP194

LVA0P

LVACKP

LVA1P

LVA2M

LVA0M

LVA1M

LVA2P

LVACKM

LVA3M

G

F

E

D

C

B

A

Go to cover page

ACER G24

41

G

F

E

D

C

B

A

+_2V5 VDDM

1234567 8910111213

GND

PBY201209T 300Y S--

FB326

C434

10uF

+_2V5 DMQ

C443

01u.

C444

01u.

C445

01u.

C446

01u.

01u.

GND

01u.

01u.

01u.

01u.

01u.

+_2V5 DMQ

C435

C436

C437

C438

C439

C440

10uF

01u.

GND

01u.

01u.

01u.

01u.

01u.

PBY201209T 300Y S--

FB325

C425

+_2V5 DMC

C426

C427

C428

C429

C430

C431

1234567 8910111213

_8.8 SCHEMATICS INTERFACE_BD_SDRAMACER_LCD_G24_

GND

EM6A9320BI

TP342

TP344

DQS 2_

DQS 3_

K8L5K6

K7

VSS

VSS

VSS

TP340

TP338

DQS 1_

DQS 0_

L10

VSS

TP336

DM3

VSS

TP334

TP332

DM2

DM1

J9

TH VSS

TH VSS

TP331

DM0

J7

J8

TH VSS

J6

TH VSS

H9

TH VSS

TP343

DQS3

H8

TH VSS

TP341

DQS2

H7

TH VSS

TP339

DQS1

H6

TH VSS

TP337

DQS0

G9

TH VSS

TH VSS

TP333

TP335

DQM0

DQM1

G7

G8

TH VSS

G6

TH VSS

F9

TH VSS

F8

TH VSS

F7

TH VSS

F6

TH VSS

DQS06

DQS26

DQS2

R429 22

DQS 0_

B2

DQS1

DQS0

DQS36

DQS3

DQS0

R427 22

R428 22

DQS 2_

DQS 1_

H13

H2

DQS2

DQS16

DQS1

R426 22

DQS 3_

B13

DQS3

DQM16

DQM1

R425 22

DM0

B3

DM0

R424 22

DM1

H12

DM1

R423 22

DM2

H3

DM2

DQM06

DQM0

R422 22

DM3

B12

DM3

TP273

TP274

TP275

TP276

CKE6

CKE

N12

CKE

SWE6

WE

GND

RAS6

CAS6

SWE

RAS

CAS

M2

N2

L3

L2

CAS

RASCS/CK

R421 22

MCLK-6

TP261

TP262

MCLK+6

MCLK-

MCLK+

M11

M12

CK

GND

R420 150 1/%

TP260

VREF

N13

GND

GND

01u.

01u.

1K NC()

01u.

0 01u.

NC

M13

DSF MCL,

C441

C442

R418

C447

C448

R419

L13

NC

NC

L12

MVREF6

M4

NC

R417 0

256M

N3

NC

TP257

1K NC()

M3

NC

NC

TP258

TP259

H11

NC

R416

H4

NC

C11

NC

C432

01u.

C433

01u.

+_2V5 DMQ

AR 0 11[.. ]6

M10

C4

L9

NC RFU/

NC RFU/

TP253

AR0

AR0

N5

A1

A0

TP251

TP252

AR1

AR2

AR2

AR1

M6

N6

A2

TP254

TP250

AR3

AR3

N7

A4

A3

TP248

TP249

AR4

AR5

AR4

AR5

M9

N8

A5

TP247

AR6

AR6

N9

A7

A6

TP245

TP246

AR8

AR7

AR8

AR7

N11

N10

A9

A8 AP()

TP243

TP244

AR10

AR9

AR10

AR9

M8

L6

A10

TP241

AR11

AR11

M7

A11

SBA16

M5

BA1

SBA06

SBA1

SBA0

N4

BA0

TP255

TP256

I315

PCB No.

6832194600P0

GND

VSS

K9

VSS

E10

VSS

E8

VSS

E7

VSS

E5

VSSQ

VSSQ

E6

VSSQ

K10

VSSQ

K5

VSSQ

J10

VSSQ

VSSQ

H10

J5

MDATA 31_

TP329

MDATA31

VSSQ

VSSQ

VSSQ

F10

G5

H5

MDATA 30_

MDATA 29_

MDATA 28_

TP327

TP325

TP323

MDATA28

MDATA29

MDATA30

VSSQ

VSSQ

VSSQ

D11

G10

E9

F5

MDATA 27_

MDATA 25_

MDATA 26_

TP317

TP321

TP319

MDATA25

MDATA27

MDATA26

VSSQ

VSSQ

VSSQ

D6

D9

D10

MDATA 23_

MDATA 24_

MDATA 22_

TP315

TP311

TP313

MDATA24

MDATA22

MDATA23

VSSQ

VSSQ

VSSQ

D4

D5

MDATA 21_

MDATA 20

MDATA 19_

_

TP309

TP305

TP307

MDATA20

MDATA19

MDATA21

VSSQ

VDD

L11

B4

B11

MDATA 16_

MDATA 17_

MDATA 18_

TP303

TP301

TP299

MDATA18

MDATA17

MDATA16

VDD

VDD

VDD

L4

L7

L8

MDATA 14_

MDATA 15_

MDATA 13_

TP293

TP295

TP297

MDATA13

MDATA14

MDATA15

VDD

VDD

VDD

D8

E4

E11

MDATA 12_

MDATA 10_

MDATA 11_

MDATA 9_

TP291

TP285

TP289

TP287

MDATA11

MDATA10

MDATA12

MDATA9

VDDQ

VDD

K11

D7

+_2V5 DMC

MDATA 7_

MDATA 8_

TP283

TP281

MDATA7

MDATA8

VDDQ

VDDQ

J11

K4

MDATA 6_

MDATA 5_

TP279

TP277

MDATA5

MDATA6

VDDQ

VDDQ

G11

J4

MDATA 4_

MDATA 3_

TP271

TP269

MDATA3

MDATA4

VDDQ

VDDQ

VDDQ

F11

G4

MDATA 1_

MDATA 2_

TP265

TP267

MDATA1

MDATA2

VDDQ

VDDQ

F4

E3

E12

MDATA 0_

TP263

MDATA0

VDDQ

VDDQ

C12

VDDQ

C10

VDDQ

C7

C8

VDDQ

VDDQ

C5

+_2V5 DMQ

C3

DQ2

DQ1

DQ0

C6

B7

MDATA 16_

MDATA 17_

MDATA16

MDATA17

DQ5

DQ4

DQ3

C2

B5

B6

MDATA 19_

MDATA 18_

MDATA 20_

RN308 22x4

MDATA20

MDATA18

MDATA19

DQ8

DQ7

DQ6

E2

D2

D3

MDATA 22_

MDATA 23_

MDATA 21_

RN307 22x4

MDATA23

MDATA22

MDATA21

DQ10

DQ9

J13

K12

K13

MDATA 1_

MDATA 0_

MDATA 2_

MDATA1

MDATA0

MDATA2

DQ12

DQ11

G13

J12

MDATA 3_

MDATA 4_

RN306 22x4

MDATA4

MDATA3

DQ14

DQ13

F13

G12

MDATA 6_

MDATA 5_

MDATA6

MDATA5

DQ17

DQ16

DQ15

F3

F12

MDATA 24_

MDATA 7_

RN305 22x4

MDATA24

MDATA7

DQ20

DQ19

DQ18

G3

F2

MDATA 25_

MDATA 26_

MDATA 27_

RN304 22x4

MDATA26

MDATA27

MDATA25

DQ23

DQ22

DQ21

K3

K2

J2J3G2

MDATA 31_

MDATA 30_

MDATA 29_

MDATA 28_

RN303 22x4

MDATA28

MDATA29

MDATA30

MDATA31

DQ26

DQ25

DQ24

D13

E13

MDATA 9_

MDATA 8_

MDATA9

MDATA8

DQ29

DQ28

DQ27

B10

C13

D12

MDATA 10_

MDATA 11_

MDATA 12_

RN302 22x4

MDATA12

MDATA10

MDATA11

DQ31

DQ30

B8

C9

B9

MDATA 14_

MDATA 13_

MDATA 15

_

RN301 22x4

MDATA14

MDATA15

MDATA13

MDATA 0 31[.. ] 6

G

TP330

TP328

TP324

TP326

TP320

TP322

F

TP318

TP316

TP312

TP314

TP308

TP310

TP306

TP304

TP300

TP302

TP296

TP298

E

TP292

TP294

TP288

TP290

TP284

TP286

TP282

TP280

TP272

TP278

TP268

TP270

D

TP264

TP266

C

B

A

Go to cover page

ACER G24

42

1234567 8910111213

UGND

G

TP420

TP421

UGND

NC

4 5

VSS SDA

SCL

WP

678

USCL

USDA

37

VSS FLAG()

123

A0A1A2

VCC

UGND

TP409

I319

R462

NC

R463

NC

C471 18pF

32

XTAL2 CLKIN EN/_

C474 NC

24MHz

1M

+U3V3

X304

R458

TP448

TP355

TP356

D334

MM4148

VOUTVIN

23

MMBT3906

+U5V

I327

+C3V3

UGND

Q310

TP353

TP354

A

220u 25V/

USB EN_3

C449

TP447

R490

10K

01u.

01u.

100u 10V/

01u.

22u 50V/

R430

C450

1

C451

C452

AIC1117A 33PYTR-

C453

C454

+3V3

1

ADJ GND()

VOUTVIN

TAB

4

2 3

I317

23

PBY201209T 170Y S--

TP348

+5V

AO3401

Q308

+U5V

SOT 223-

FB328

+U3V3

1234567 8910111213

_8.9 SCHEMATICS INTERFACE_BD_USB AND CAM/MIC OUTPUTACER_LCD_G24_

TP345

TP346

GND

R491

47K

47K

R431 30K

R443

100K

Upstream

31

DP0

10K

TP376

TP377

I318

R440

USB2514USB2512

I323

USB2514

B

+U3V3

UGND UGND

GND

USB2512

100u 10V/

AIC1117A 33PYTR-

C490

R434 47K

Q307

MMBT3904

1

ADJ GND()

TAB

4

D

+U3V3

R574

NC

TP394

+U3V3

C468

01u.

R451

100K

17

OCS2

USBDN2 DM_

PRTPWR2

3

16

2514 DET_

DN

R452

NC

R453

NC

+U3V3

R442

100K

OVR3

17

OCS2

R454

26

RESET

Common

RBIAS

352224

R571

100K

R572

100K

R573

NC

19

OCS3

TP379

OVR4

HS IND CFG SEL1_/ _

25

TP415

SDA SMBDATA NON REM1//_

SCL SMBCLK CFG SEL0//_

USCL

USDA

TP374

TP372

EEPROM Config/

C532 22pF

32

XTAL2 CLKIN EN/_

VDDCR18

14

C542

C543

TP512

UGND

+U3V3

TP395

C472

26

RESET

24MHz

1M

100K

X303

R575

1u

01u.

01u.

01u.

01u.

R456

E

C546

C547

C548

C549

C550

UGND

C531 22pF

33

XTAL1 CLKIN/

VDDPLLREF VDDA33/

VDDA33

VDDA33

VDDA33

293615

10

UGND UGND

+U3V3

5

UGND

01u.

01u.

TP391

100K

C533

C534

OVR5

21

OCS4

R569

11

TEST

VDD33 REG()

VDD33 IO()

PBY201209T 170Y S--

+U3V3

TP416

23

TP514

UGND

UGND

28

LOCAL PWR NON REM0 SUSP IND N_/_ / __

12K 1/%

UGND

UGNDUGND

FB336

F

UGND

TP390

UGND

37

VSS FLAG()

VDDPLL18

34

C544

1u

1u

C545

01u.

UGND

01u.

TP513

UGND

TP408

UGND

100K

C469 18pF

TP399

UGND

33

11

XTAL1 CLKIN/

TEST

R441

LOCAL PWR NON REM0 SUSP IND_/_ / _

UGND

28

R438

NC

01u.

C

C463

1u

R444

100K

UGNDUGND

TP515

USBUP DM_

27

VBUS DET_

USBUP DP_

30

DN0

TP366

2514 DET_BUSPWR

R460 0

27

VBUS DET_

13

OCS1

USBDN1 DM_

PRTPWR1

12

OVR2

13

OCS1

Downstream 1

USBDN1 DP_

241

DN1DPDP1

Downstream 2

USBDN2 DP_

PCB No.

6832194600P0

UGND

UGND

14

14

TP370

DN5

DD1M

VBUS4

PRTPWR1

12

L303

VBUS5

USBDN1 DM_

USBDN1 DP_

2

1

DP2

DN2

TP363

TP362

DP4

DN4

WCMH2012F2SF 900T04-

3 2

32

14

14

TP367

TP368

GND

DD2M

DD2P

Downstream 1

L302

VBUS4

VBUS3

1234567891011

Upstream

USBUP DM_

USBUP DP_

31

30

DP

DN

OVR4

TP351

UGND

R435

15K

TP360

TP361

UGND

15K

123456789

P307

R436

UGND

UGND

UGND

UGND

TP357

OVR5

TP358

R432

10K

PBY201209T 170Y S--

1 2

FB329

100uF 10V/

C455

VBUS4

C456

01u.

TP352

R433

10K

PBY201209T 170Y S--

1 2

FB330

100uF 10V/

C457

VBUS5

C458

01u.

+U5V

GND

F301

5V 0 75A.

12

6

01u.

4

C461

TP349

UGNDUGND

C459

NC

C460

NC

WCMH2012F2SF 900T04-

+U5V

F302

5V 0 75A.

TP350

UGND

5

34

123

TP364

TP365

3 2

L301

32

14

14

DP0

DN0

MM4148

TP369

TP371

R527

18K

P308

USB B_

BUSPWR

R439 10K

D343

TP359

USB DET_3

PRTPWR2

16

+U5V+U5V

USBDN2 DM_

3

DN3

UGND

GND

USBDN2 DP_

4

DP3

Downstream 2

TP373

DP5

WCMH2012F2SF 900T04-

3 2

32

C462 0 1u.

GND

DD1P

JWT A2008WR0 12P--

101112

12

UGND

UGND

USBDN4 DM_

PRTPWR4

20

15K

Downstream 4

USBDN4 DP_

9

8

DN5

DP5

OVR2

10K

R448

15K

TP386

100uF 10V/

UGND

C465

01u.

OVR3

R450

10K

TP387

100uF 10V/

UGNDUGND

UGND

C467

01u.

EEPROM Config/

SDA SMBDATA NON REM1//_

Common

SCL SMBCLK CFG SEL0//_

VDDA33 VDD33PLL/

VDDA18PLL

VDD18CR

34

14

C562

1u

C563

01u.

UGND

TP347

+C3V3

XPBY201209T 170Y S--

PBY201209T 170Y S--

1 2

1 2

FB335

100uF 10V/

C481

VBUS1

C482

01u.

TP422

FB344

+U5V

UGND

TP417

C5581uC553

C561

01u.

TP414

UGND

UGND

C485

01u.

UGND

1u

C554

01u.

C555

01u.

C556

01u.

C557

01u.

CAM MIC DIAG__3

WCMH2012F2SF 900T04 NC-()

R461 0

R464 100

TP412

FB327

PBY201209T 170Y S--

GND

JWT A2008WR0 5P--

VDDA33

VDDA33

VDDA33

293615

5

10

UGND UGND

01u.

01u.

TP411

TP410

DN1

DP1

3 2

L306

32

14

14

VBUS1

DP1

DN1

VBUS1

DIAG LOOP_

12345

P310

12345

R459 0

TP406

TP407

VDD33REG

C551

C552

VDD33IO

23

11 5K 1./%

UGND

UGND

PBY201209T 170Y S--

FB333

+U3V3

TP418

UGND

C470 0 1u.

GND

UGND

TP402

TP403

11

9

RBIAS

R455

TP388

100K

UGND

WCMH2012F2SF 900T04-

L305

32

8

DP+

GND

GND

GND

HS IND CFG SEL1_/ _

352224

R457

TP398

R449

100K

TP385

R445

100K

TP401

TP400

DN3

DP3

3 2

32

14

14

VBUS3

DP+

GND

VCC

DM-

25

TP378

TP397

DP2

3 2

14

DM-

GND

GND

14

TP396

DN2

VCC

WCMH2012F2SF 900T04-

VBUS2

1234567

L304

TP392

TP393

P309

USB A DUAL__

12

10

R446

PBY201209T 170Y S--

C464

R447

PBY201209T 170Y S--

C466

USBDN3 DM_

PRTPWR3

18

TP382

1 2

FB331

TP383

1 2

FB332

Downstream 3

USBDN3 DP_

7

6

DP4

DN4

F303

5V 0 75A.

TP380

VBUS2

F304

5V075A.

TP381

VBUS3

G

F

E

D

C

B

A

Go to cover page

ACER G24

43

HDMI AUDIO CODEC deleted for(

P243W HDMI model)

1234567 8910111213

G

F

E

D

AUMCK6

AUWS6

C

AUSCK6

AUSD6

B

GND

A

+5V

1234567 8910111213

TP533

PBY201209T 300Y S--

R547 33

4 5

MCLK VQ

8

AGND

R545 33

TP527

3

LRCK

FILT

R543 33

TP526

2

#/DEM SCLK

AOUTR

R540 33

TP525

1

SDIN

AOUTL

VA

TP524

I324 CS4344

9

FB340

100u 10V/

0 1uF.

D501

MM4148

C505

C506

TP532

VS

TP510

_8.10 SCHEMATICS INTERFACE BD _AUDIO LINE OUTACER_LCD_G24_

10u

0 1uF.

C523

C524

TP534

6

C527 10u

10K

10

TP535

C513 3 3u 50V./

R560

R548 470

7

TP530

TP531

10K

TP528

C512 3 3u 50V./

TP529

R559

R541 470

PCB No.

6832194600P0

1500pF

1

X100MV05

PBY201209T 300Y S--

C503

2

D349

FB342

FB346

TP519

PH JACK 3P Green--( )

1

TP518

SBK160808T 300YS-

HDMI RIGHT_

2

1

3

C502

1500pF

2

X100MV05

D348

TP516

SBK160808T 300YS-

FB345

HDMI LEFT_

G

F

E

D

C

P312

B

A

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ACER G24

44

2 6

1234567 8910111213

G

ENA

A

GND

59876

GND

CN001

VIN

VIN

VIN

124

3

1234567 8910111213

PWM

GND

GND

ENA

10

F

VA

VB

4 6

4 1

T110

2 1

T107

E

VA

VB

2 6

4 1

T104

2 1

D

4 6

T101

C

VA

2

ZD101

56V.

GND

B

1

R120

3K

3K

VIN 24V-

R120A

GND

GND

2N3904

Q101

2

+5V

GNDGND

3

1

1000P

C109

C107

2 2uF.

0 1uF.

C163

30 1K 1.%

0603

R112

22K

876

NC

OVPT

OZ9938

ENA

NC

9101112131415

0603

C110

2 2uF.

150K

R113

C108

470P

C108A

NC

C112

10u.

0805

C122

C140

1500P

CR107

CR110

C146

R160

CR111

C147

R161

CR112

C148

R162

BAV99

3 1

C137

10P 3KV/

2

100K 1%

2

C143

22n.

R157

510

2

VA

VB

CR108

BAV99

R151

IS3

VS3

36K

R154

CN104

1

4 6

2 1

T108

C141

1500P

3 1

C138

10P 3KV/

2

100K 1%

2

C144

22n.

R158

510

2

VA

VB

CR109

BAV99

R152

IS7

VS7

36K

R155

CN105

1

4 6

2 1

T109

C142

1500P

3 1

C139

10P 3KV/

2

100K 1%

36K

IS11

R156

R153

VS11

2

C145

22n.

R159

510

1500P

C131

C134

10P 3KV/

CR104

2

R145

R146

2 6

R147

R148

2 6

1500P

R149

R150

BAV99

3 1

2

C128

22n.

R142

510

IS2

VB

4 1

T105

1500P

C132

CR105

2

BAV99

3 1

2

C129

22n.

R143

510

IS6

VB

4 1

T106

C133

CR106

2

BAV99

3 1

2

C130

22n.

R144

510

IS10

100K 1%

VS2

36K

C135

10P 3KV/

100K 1%

VS6

36K

C136

10P 3KV/

100K 1%

VS10

36K

1500P

C149

C152

10P 3KV/

R163

R164

2 6

1500P

R165

R166

2 6

1500P

R167

R168

BAV99

3 1

22n.

510

IS4

4 1

T111

C150

BAV99

3 1

22n.

510

IS8

4 1

T112

C151

BAV99

3 1

22n.

510

IS12

100K 1%

VS4

36K

C153

10P 3KV/

100K 1%

VS8

36K

C154

10P 3KV/

100K 1%

VS12

36K

1500P

CR101

BAV99

3 1

C119

10P 3KV/

100K 1%

C125

22n.

R139

510

2

VA

CR102

BAV99

C126

22n.

R140

510

2

VA

CR103

BAV99

C127

22n.

R141

510

R133

IS1

VS1

36K

R136

CN101

1

4 6

2 1

T102

C123

1500P

3 1

C120

10P 3KV/

100K 1%

R134

IS5

VS5

36K

R137

CN102

1

4 6

2 1

T103

C124

1500P

3 1

C121

10P 3KV/

100K 1%

R135

IS9

VS9

36K

R138

4

AP9985GM

GDS

D

AP9985GM

D

GDS

4

4

AP9985GM

GDS

D

AP9985GM

D

GDS

4

1

2

3

S

SD

D

657

8

open 1812/

C157

1

2

220UF 35V/

+

C158

1

2

220UF 35V/

+

C159

657

8

D

S

SD

1

2

3

LDR1HDR1

1

2

3

S

SD

D

657

8

open 1812/

C160

1

2

220UF 35V/

+

C161

1

2

220UF 35V/

+

C162

657

8

D

S

SD

1

2

3

Q103

GND GND

R115

100K

LX1

C114

1000P

VIN 24V-

Q104

GND

1000P

0603

C118

R119

1M

GND

C116

1000P

0603

VB

R129

51K.

Q105

LX2

VIN 24V-

Q106

470

VSEN

LCT

R121

R107

5

ISEN

SSTCMP

0 047uF.

GND

C111

470

10K

0603

4

DIM

CT

R121A

R105

10K

R111

3

TIMER

GNDA

GND

2 49K 1.%

R110

0805

GND

1uF

VDDA

DRV2

10u.

C113

2

510K

0603

GND

R103

C106

20

1

DRV1

PGND

16

39K 1%

R106

R104

0603

DRV1

I101

DRV2

10K

R102

F101

1206

ON OFF-

VIN 24V-

BRI

1

2

220UF 35V/

+

C101

+5V

C102

1u 50V/

1206

1

2

220UF 35V/

+

GND

C104

1206

GND

C103

1u 50V/

_8.11 SCHEMATICS INVERTER BDACER_LCD_G24_

PCB No.

6832188000P0

CN106

1

2

1

33K

33K

R130

R131

BAT54A

IS2

BAT54A

IS6

3

D116

51V.

2

R125

100K

C117

10n

1N4148

R126

33K

D117

IS4

R127

33K

D118

IS8

IS

2

2N3906

Q102

1

1

D115

2

10K

R122

R123

10K

CN103

1

2

R116

10K

BAT54A3

D109

2

1

IS3

IS1

R117

10K

BAT54A

D110

IS5

IS7

LDR2HDR2

open

21

D106

0

0603

LDR2

R114

0805

GND

6

7

8 9

LDR2

GNDP2

VDDP2 BST2

1 3

D122

BAT54

C115

0 47u.

LX2

HDR2

LX2

10111213141516

open

D104

21

5

NC

PWM2

0

0603

HDR2

DRV2

R109

4

NC

PWM1

DRV1

open

D103

21

GND

3

LDR1

HDR1

2

GNDP1

LX1

0603

HDR1

0

1

VDDP1

BST1

0805

R108

0 47u.

I102

OZ9982

BAT54

C105

LX1

1 3

D121

open

21

D101

R101 0

LDR1

0603

G

33K

R132

F

BAT54A

IS10

D113

R128

33K

D119

IS12

10K

R124

BAT54A

IS11

10K

D111

IS9

E

BAV70

R118

VS12

D

D108

BAV70

VS10

VS11

D120

BAV70

VS9

VS8

C

D114

BAV70

VS7

VS6

D112

BAV703

2

VS4

VS5

D107

BAV703

1

2

1

VS3

VS1

VS2

B

A

Go to cover page

ACER G24

45

G

F

E

D

C

B

A

1234567 8910111213

10 HEADER

123456789

MENUEMINUS

SELECT

POWER

PLUS

P601

10

1234567 8910111213

LED AMBER_

LED BLUE_

_8.12 SCHEMATICS FUNCTION _KEYACER_LCD_G24_

R606 240

C605 0 1u.

C606 0 1u.

C604 0 1u.

C603 0 1u.

C602 0 1u.

C601 0 1u.

LEDORANGE

R605 200

LEDBLUE

PCB No.

6832194800P0

G

Menu KEY

D601

LED

2

S601

S606

Auto exit/

E

F

S605

E

Menu

S604

D

Left

S603

Right

S602

C

Power

B

Y

4

A

1

B

3

Go to cover page

ACER G24

46

G

F

E

D

C

B

A

POWER BOARD - TOP SILK

8.13 ACER_LCD_G24 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 G24

47

G

F

E

D

C

B

A

8.14 ACER_LCD_G24 LAYOUTS_INTERFACE BOARD_

1234567 8910111213

1234567 8910111213

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER G24

48

G

F

E

D

C

B

A

8.15 ACER_LCD_G24 LAYOUTS_FUNCTION KEY BOARD_

1234567 8910111213

1234567 8910111213

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER G24

49

G

F

E

D

C

B

A

8.16 ACER_LCD_G24 LAYOUTS_INVERTER BOARD_

1234567 8910111213

1234567 8910111213

PCB No.

G

F

E

D

C

B

A

Go to cover page

ACER G24

50