Software Update Step（Sop - AOC 931SW series Service Manual

Service Manual
Key Board---
OSD no working
8.3 Software update step（SOP）
After replacing the Main board and the Panel, Check if white-balance is within the specs ,then re-writing DDC is
necessary.
Product information
U402 056G2233501
SMTCR-U402 100GARV9001B11
CBPCAR5ACJ1
Step1：Connection
1. Connect USB cable to the PC USB port and the ISP tool,（715GT089-B） ；
2. Will be the Monitor VGA cable to connect ISP tool ；
3. ISP tool card connection as shown below
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
Connect Key Pad Board
NG
Replace Button Switch
NG
Replace Key Pad Board
NG
FLASH MX25L2026DM1I-12G 2Mb SOP-8
AOC931SW+_RTD2270_TPM190A1_100611_V001
mainboard G3244-2-2-X-3-100609
32
AOC 931SW+
Check flow chart
For the key board