There is no display on both LCD and VGA monitor after power on although the LCD and monitor is known-good.
No Display

8399 N/B Maintenance

8.4 No Display(1)

Monitor

No

Replace monitor

 

 

 

or LCD module

 

or LCD.

Secret

OK?

 

 

 

Yes

 

 

Make sure that CPU module,

 

DIMM memory are installed

 

 

 

 

 

Properly.

 

 

 

 

Replace

 

 

 

 

 

 

 

CorrectMiTacit.

Document

 

 

 

Motherboard

Display

Yes

 

 

 

 

 

OK?

 

 

 

 

 

No

 

 

 

 

 

1.Try another known good CPU

 

 

 

 

module, DIMM module and BIOS.

 

 

 

2.Remove all of I/O device (FDD,

Confidential

 

HDD, CD-ROM…….) from

 

 

motherboard except LCD or monitor.

 

 

 

 

Yes

1. Replace faulty part.

 

 

 

Display

2. Connect the I/O device to the

 

 

OK?

M/B one at a time to find out

which part is causing the problem.

 

 

No

 

 

 

 

 

 

 

Board-level

Troubleshooting

Using debug card,depending on the error codes to make sure which parts maybe faulty

Using circuit diagram ,check the faulty parts

106