Acer MB243WABNS service manual PCB No

Page 36

8.Schematics and Layouts

8.1 ACER_LCD_G24_SCHEMATICS_BLOCK DIAGRAM

12

A

3

4

5

6

7

8

9

10

11

12

13

 

 

 

LCD Module

 

 

 

 

 

 

 

 

 

 

LTM240CT03

 

 

 

 

 

 

 

 

 

 

LTM240CT01

 

 

 

 

 

 

A

ACER G24

 

35

 

 

 

Go to cover page

B

Inverter Board

C

Power

 

Board

D

AC

110/220v Input

E

F

G

Brightness,Inv_On/Off

+5V

P301

I326 DC-DC

I320 5v-3.3v

3.3v-1.8v

I302

I321

DDC 24LC02B

DDC_SCL_D

DDC_SDA_D

HDMI

Digital

Video

Input

 

 

 

P306

 

B

 

 

 

 

 

 

 

LVDS

 

 

I307

 

 

 

 

 

Flash

 

 

 

I314

 

W39L040Ap70Z

I315

 

 

I306

 

 

 

 

 

DDR

 

 

 

MCU

C

 

 

 

W79L659A25FL

 

 

 

 

EM6A9320BI

 

Scaler

 

 

P303

 

 

 

 

 

 

 

MST 9259D

 

 

Function

 

 

 

 

 

 

 

 

 

XTAL

Key

 

 

 

 

14.3MHZ

Board

 

 

 

 

 

D

 

 

TMDS

 

 

 

 

Switch

 

 

 

 

I313

 

I322

 

I312

 

 

 

 

 

DDC

 

 

 

DDC

E

24LC02B

 

 

 

24LC02B

 

DDC_SCL_D1

 

R,G,B,Hs,Vs

D_SUB_SCL

 

 

 

 

 

DDC_SDA_D1

 

 

 

D_SUB_SDA

 

P311

DVI-D

P305

DSUB

P304

F

G

Digital

Analog

Video

Video

Input

Input

1

2

3

4

5

6

7

8

9

10

11

12

13

PCB No.

Image 36
Contents Acer Go to cover Scope Sync Signal Loading Video Input Signals Function LED Color Factory Preset Video Timings Digital Inputs Panel Electrical Diameter, they must be at least 15mm apart Main OSD Menu Outline Description for control function OSD Manu Exploded Diagram Packing Exploded Diagram Exploded Diagram Product Exploded Diagram Assembly and Disassembly Procedures S10 S11 S12 S22 Open the carton with a proper tool S10 S15 S18 Go to cover Proceed to 5.3 Checking the backlight unit section Troubleshooting Troubleshooting Abnormal Screen Troubleshooting Abnormal OSM display OSD Adjusment Problem Failure Point Confirm the output of serial Checking the control circuit of vertical sync pulse Troubleshooting Checking the resolution change IC movement Between I301, I303 Troubleshooting Checking the inverter board circuit Failure Point I314 was damaged Firmware Upgrade Process Go to cover Cedid Go to cover PCB No PCB No P01 For Power Saving Control ACERLCDG24SCHEMATICSINTERFACEBDMCU and Function KEY Dsub ACERLCDG24SCHEMATICSINTERFACEBDHDMI and DVI Input 123 ACERLCDG24SCHEMATICSINTERFACEBDSDRAM ACERLCDG24SCHEMATICSINTERFACEBDUSB and CAM/MIC Output Hdmi Audio CODECdeleted for P243W Hdmi model ACERLCDG24SCHEMATICSINVERTER BD Menu KEY Power Board TOP Silk ACERLCDG24LAYOUTSINTERFACE Board ACERLCDG24LAYOUTSFUNCTION KEY Board ACERLCDG24LAYOUTSINVERTER Board