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TROUBLESHOOTING FLOWCHART
LED lamp blinking
Turn power on and check
state of lamp.
Not lighted.
LAMP STATE
Power supply
circuit faulty.
POWER SUPPLY STATE
∗ Replace Main
Power PCB.
REMEDY
∗ Vs and V
a must be adjusted.
Blinks
continuously.
Power turned off
immediately.
Check 1
Power turned off
immediately.
Check 1
6 times (Red)
Power turned off
after 10 sec.
Check 2
2 times (Red)
Power turned off
after 10 sec.
Check 3
4 times (Red)
Power not turned
off, LED blinks only.
Replace Main/Digital
PCB Assy.
5 times (Red)
Power not turned
off, LED blinks only.
Replace Video PCB
Assy.
Is on-screen display
normal?
Check 4
Check 5
Signal processing
PCB faulty.
Replace Main/Digital
PCB Assy.
Check 5
Check 6
Check 7
Lights steadily for
more than 10 sec.
GREEN
NO
YES
All input image
faulty.
Video input image
faulty.
S-video input image
faulty.
Component video
input image faulty.
RGB input image
faulty.
Note : 1. Since a voltage is applied to the Main Power
PCB heat sinks while the set is operating, do
not touch the heat sinks.
2. If the Main Power PCB insulation sheet is not
installed when assembling, the Main Power
PCB fuse will blow.
1 time (Red)
1 time (Green)
Check PDP Panel.
1 time (Red)
2 times (Green)
1 time (Red)
3 times (Green)
Check Main/Digital
PCB
Power turned off
immediately.
Power turned off
immediately.
Blink LED
Blink LED
Blink LED
Blink LED
Blink LED
Blink LED
Blink LED
Blink LED
3 times (Red)
Power not turned
off, LED blinks only.
Replace Main/Digital
PCB.
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