Acer RA19WAANU service manual Interface Board LCD Flat Panel

Page 36

8.BLOCK DIAGRAM

1

2

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6

7

CCFT Drive

A

B

DC 5V

Inverter control

Interface Board

8

9

10

11

12

13

LCD Flat Panel

Panel date& control.DC power

A

B

ACER X203H

 

35

 

 

 

Go to cover page

C

D

E

F

G

AC to DC Adapter

DC to AC Inverter

Audio

AMP (Option)

AC-IN

 

 

 

 

inputAudioline

 

1W*2

 

Speaker

 

 

line input

 

Speaker

 

(Option)

 

 

 

 

 

 

Audio Source

Interface Board

Flat Panel Controller,DDC

 

 

VideoSignal

Functionkey

 

 

 

input&

input

 

 

DDC

 

 

 

 

 

 

 

 

 

Host Computer

Function Key Board

C

D

E

F

G

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PCB No.

Image 36
Contents Service Go to cover SUB Connector Pin Description SUB Description DVI-I/DVI-DIf using DVI-D cable,C1,C2,C3,C4,C5 is NCUser Controls and Indicators Power On / Off Switch OSD adjustmentPower Supply Requirements KHz MHzDisplay Communications Channel Panel TimingsBacklight Requirements General Requirements Defects Inspection Spec Main OSD Menu Outline Description for control function O l w h it eOSD Manu Exploded Diagram Packing Exploded Diagram Exploded Diagram Product Exploded Diagram Plug in parallel direction Angel 5 degrees S10 S18 USER’S Manual Separating all of the locking mechanism Front bezel in turnTurn over the LCD monitor screen faced up S14 S15 S16 Use properly force to pull up front bezelS20 Does OSM display when you push Proceed buttom Next Circuit section Troubleshooting Checking the back light unit Troubleshooting Abnormal screen for VGA Troubleshooting Abnormal screen For the DVI Troubleshooting Abnormal OSM display adjust problem Abnormal plug and play operation for VGA Troubleshooting Abnormal plug and play operation For the DVI Checking the control circuit of vertical sync pluse Troubleshooting Checking the resolution change IC movement Troubleshooting Checking the DC/DC converter circuit Firmware Upgrade Process Go to cover Cedid Go to cover Interface Board LCD Flat Panel