Chapter 5 Troubleshooting Guidelines
340S2
57
Rev : B
5.3 LCD no display or Invalid Picture
Symptom: The LCD shows nothing or abnormal picture, but it is ok for external
monitor.
LCD No Display
Try another known good LCD module
Display
OK?
No
Yes
Replace each parts of LCD
module / cables and test
Replace motherboard
Board level troubleshooting
Check LCD module and SIS630 controller, replace the parts one at a time and test
after each replacement
Correct it
Check LCD module
for cold solder
Re-soldering
LCD Type in
BIOS Setup OK?
No
No
Yes
Yes
Summary of Contents for 340S2
Page 6: ...Chapter 1 General System Description 340S2 6 Rev B ...
Page 18: ...Chapter 2 Connectors Switches 340S2 18 Rev B ...
Page 38: ...Chapter 4 System Disassembly 340S2 38 Rev B SB3052P TL594 29LV020 ...
Page 48: ...Chapter 4 System Disassembly 340S2 48 Rev B 4 5 ...
Page 88: ...t 340S2 Rev B ...
