H77
3-6
3-2.4
D. Remote Control Troubleshooting
Start
End
Does the Remote
Function work?
No
Replace the battery
Yes
No
Change Remote Control
No
Change Front-End Board
Yes
Yes
3-2.5
E. Video Signal Troubleshooting
A. Have Image
?
?
?
?
?
-
Ensure the signal cable and source work as well.
-
Check that OSD menu can show on the screen.
(Check the main board if OSD menu cannot show on the screen)
B. Have Garbage Pattern
?
?
?
?
?
-
Ensure the signal cable and source work as well.
-
Check that OSD menu can show on the screen.
(Check the main board if OSD cannot show on the screen)
