Troubleshooting Using Led And Osd - Fujitsu Plasmavision PDS4229W-B Service Manual

TROUBLESHOOTING USING LED AND OSD

1. Display
(1) OSD
Two kinds of error messages are displayed on the screen, and the power is turned off 10 sec later.
(2) LED
LED error is displayed continuously after the power is turned off.
2. Error types and check points
(1) OSD
On screen display
ERROR MESSAGE CONDITION 1
ERROR MESSAGE CONDITION 2
(2) LED
LED lamp display status
Steady light (Red)
Continuous
Flashes continuously (Red)
1 time
Flashes once every 4 sec. (Red)
2 times
Flashes twice every 5 sec. (Red)
4 times
Flashes four times every 7 sec.
(Red)
5 times
Flashes five times every 8 sec.
(Red)
Cause
Fan protector operated
Temperature protector
operated
Cause
Stand-by status
No power
Power supply protector
operated
Fan protector operated
Temperature protector
operated
Main/Digital circuit faulty
Video circuit faulty
– 12 –
Check point
• Fan
• Main power PCB
• PFC PCB
• Main/Digital PCB
• Ambient temperature of unit
• Main/Digital PCB
• Temp. sensor IC757.
Check point
–––––––––––
• Main power PCB
• PFC PCB
• PDP panel
• Fan
• Main power PCB
• Main/Digital PCB
• Ambient temperature of unit
• Temperature sensor IC757
• Main/Digital PCB
• Main/Digital PCB
• Video PCB Assy