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Service Modes, Error Codes, and Fault Finding
EN 14 FHP PDP5.
Figure 5-5 Problem analysis procedure: the entire screen does not light
The entire screen does not light
Replace the
Power Supply
PSU board is
defective
Y
N
Turn “OFF” AC power
Connect CN 6 (LOGIC)
Turn on AC power
Remove CN06
(on LOGIC Board,
PSU-LOGIC cable)
the PSU board is present?
LOGIC board is
defective
N
Y
“Logic Board Exchange” procedure
G_16400_026.eps
310706
2
Disconnect the mains plug.
Remove the following power connections:
on X-SUS: CN23 (PSU -> X-SUS)
on X-SUS: CN26 (X-SUS -> ABUS-R)
on X-SUS: CN32 (X-SUS -> Y-SUS)
on ABUS-R: CN47 (ABUS-R -> ABUS-L)
Problem Analysis Procedure: The entire screen does not light
Caution 1: never disconnect connectors or
remove boards when the mains plug is connected.
Allow discharge of power supplies before
disconnecting connectors!
All the boards are connected
Connect the set to mains.
Switch “ON” the set
Vpr2 (3.3 V) on
the PSU board is present?
Vpr2 (3.3 V) on
via the mains switch
Replace Logic Board
Follow the
Caution 2: do not interchange boards between
different PDPs, this might damage your PDP
1