Appendix 5 - Flowchart Of Troubleshooting - Toshiba TD-E502 Service Manual

Appendix 5 Troubleshooting
a. Flow chart of System Trouble Shooting
Power On OK?
Backlight OK?
(No full white)
IR Remote
control, keypad,
and LED OK?
OSD Image OK?
No signal?
Audio OK?
Function OK?
1.
No
2.
3.
Yes
No
1.
2.
3.
Yes
1.
No
2.
3.
Yes
No
1.
Yes
Yes
1.
2.
No
No
Yes
1.
2.
No
1.
Check adapter AC socket to LCD TV.
Check cable connection between power board and main board.
Check power board VCC
Check cable connection between main board and Power Board
Check cable connection between Power board and LCD panel
Check remote controller battery.
Check remote controller.
Check wire connection between main board, keypad and IR
board.
Check cable connection between main board and LCD panel.
Check input cable.
Check OSD source set up.
Check wire between Main board to speaker.
Check audio input connection.
Check main board
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