ViewSonic VG712s Service Manual page 46

2. If the firmware upgrade still fails, reboot the PC, or simply use another PC to upgrade.
3. If the above procedures don't work, unplug and re-plug the power cord of VG712s/b. Then try to upgrade the
firmware again if VG712 can be powered on.
the main board is out of work.
3. DDC Key In Procedure
Note:
1. Every time after replacing the main board, you have to do the DDC key in.
2. If you find the DDC does not conform to the monitor, you have to do the DDC key in.
3.1 Equipment Needed
- VG712s/b Series Monitor
- Fixture (V3) for DDC Key in (JP3 must be closed)
- RS232 Cable (P/N: 42.55907.001) *1
- VGA Cable (P/N: 42.59901.003) *2
- DVI-DVI Cable *1 (P/N: 42.56108.012)
ViewSonic Corporation
Copy the error line of the
"bdisp.txt" batch file to
"Gprobe:>"
You then have to replace the main board.
If VG712s/b cannot be turned on, that means the flash memory of
43
Confidential - Do Not Copy
VG712s/b