Software Programming Step - AOC n941S/plus Service Manual

Service Manual
Key Board---
OSD no working

9.3 Software programming step

U402 056G2233 11
SMTCR-U402 100GANA9000B21
756GJ9CB AA082
Step1：Connection
1. Connect LPT cable of the PC, the other end of cable to connect ISP programming card（715GT034-B） ；
2.VGA cable to Connect the monitor and the tool;
OSD is unstable or not
working
Is Key Pad Board connecting
normally?
OK
Is Button Switch normally?
OK
Is Key Pad Board normally?
OK
Check Main Board
NG
NG
NG
IC Pm25LD020C-SCE SIOC-8(150mil) 2M
AOCN941S_NT68168_AUOM190PW01V7_V002
MCU ASSY CBPC9NWA1QHJ G3225-1-2
38
Check flow chart
For the key board
Connect Key Pad Board
Replace Button Switch
Replace Key Pad Board
AOCn941Splus