Troubleshooting Flowchart - Fujitsu Plasmavision P50XHA10US Service Manual

TROUBLESHOOTING FLOWCHART

LED lamp blinking
Turn power on and check
state of lamp.
LAMP STATE
Not lighted.
RED RED
Blinks continuously.
RED
Blinks once
RED
Blinks twice
RED
Blinks four times
RED
Blinks five times
GREEN
Lights steadily for
more than 10 sec.
Is on-screen display
normal?
YES
POWER SUPPLY STATE
Power supply
PCB faulty.
Power turned off Power turned off
immediately. immediately.
Power turned off
after 10 sec.
Power turned off
after 10 sec.
Power not turned
off, LED blinks only.
Power not turned
off, LED blinks only.
NO
All input image
faulty.
Video input image
faulty.
S-video input image
faulty.
Component video
input image faulty.
RGB 1, 2 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.
REMEDY
Check PDP Panel.
Check PDP Panel.
Check 1
Check 2
Replace Main/Digital
PCB Assy.
Replace Video PCB
Assy.
Check PDP Panel.
Signal processing
PCB faulty.
Video PCB faulty.
Video PCB faulty.
Signal processing
PCB faulty.
Check 3
- 26 -
Replace Main/Digital
PCB Assy.
Replace Video PCB
Assy.
Replace Video PCB
Assy.
Replace Main/Digital
PCB Assy.