8. Trouble Shooting
Does picture display?
NO
Off
YES
On
Adark picture or a picture full of colorfully vertical lines
Check power LED
| Hsync, |
Green | or DE error |
|
Flash
Check display resolution
Check I/F board
Check inverter Check I/F board J5
Check I/F board CN5 Check panel connector
OSD no response
too dim
The brightness is different between upper side and downer side.
partly picture without color
Vertical, Horizontal none synchronousness
a few of colorfully vertical lines
even(or odd) vertical lines is dark
Check SW board 
SW1~SW4
|
|
| Check OSD | |
|
|
| adjustment | |
|
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| |
RGB | Check backlight | |||
| ||||
signal |
| |||
| ||||
error |
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| |
Check I/F board | ||||
| ||||
H,Vsyn |
|
| Check LCD panel | |
c error |
|
| ||
|
|
| ||
Check LCD Panel
Check I/F board
Check SW board JP1
Check I/F board
LT1201 User Manual
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