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TROUBLESHOOTING FLOWCHART
LED lamp blinking
Turn power on and check
state of lamp.
Not lighted.
STATE OF LAMP
Power supply unit
faulty.
POWER SUPPLY STATE
∗
Replace Power
Supply Unit.
MEASURE
∗
Vs and -Vy must be adjusted.
Blinks
continuously.
Power turned off
immediately.
RED
Check 1
Blinks continuously.
Power turned off
immediately.
RED
Check 1
Blinks once.
Power turned off
after 10 sec.
RED
Check 2
Blinks twice.
Power turned off
after 10 sec.
RED
Check 3
Blinks four times.
Power not turned
off, LED blinks only.
RED
Replace Main/Digital
PCB Assy.
Blinks five times.
Power not turned
off, LED blinks only.
RED
Replace video PCB
Assy.
On screen display
normal?
Check 4
All input images
faulty.
Signal processing
PCB faulty.
Replace Main/Digital
PCB Assy.
Video input image
faulty.
Check 5
S-video input image
faulty.
Check 5
Component video
input image faulty.
Check 6
RGB 1, 2 input
image faulty.
Check 7
Sound faulty, picture
normal.
Check 8
Lights continuously
for more than 10 sec.
GREEN
NO
YES