Fujitsu Plasmavision PDS4208W-B Service Manual page 17

Check 4
Start
Is picture
displayed on screen Yes
when a signal is input?
No
Is voltage at
No
each connector on Power
Supply Unit
normal ?
Yes
Is voltage at each
No
connector on DC/DC
power PCB normal ?
Yes
Is picture displayed Yes
normally when PDP is
changed ?
No
OSD is not displayed.
Power lamp : Lighted green.
(10 sec or more)
Signal processing Replace Main/Digital
circuit faulty. PCB Assy.
Power Supply Replace Power Supply
circuit faulty. Unit.
DC/DC power Replace DC/DC
circuit faulty. power PCB Assy.
PDP panel faulty. Replace PDP panel.
Signal processing Replace Main /Digital
circuit faulty. PCB Assy.
Check 5
Video/S-video input signals are abnormal.
Power lamp : Lighted green
Start
Can this unit
Yes
select only RGB 1 or
RGB 2 mode ?
No
Is picture
displayed on screen
Yes
normally when new video
PCB unit installed ?
Yes
Is signal input level
normal ?
No
Check input signal.
(10 sec or more)
Install video PCB
Assy firmly.
Video PCB Assy Replace Video
faulty. PCB Assy.
Signal prosessing Replace Main/Digital
circuit faulty. PCB Assy.