Philips FPF42C128135UA-52 Service Manual page 13

5.4.3 Fault Finding Flowcharts
Problem analysis procedure: PDP repair / board swap
The entire Screen does not light.
The set is going into protection.
(PSU is OK)
Go to Step 1 in the procedure
Check the 3.3V Vpr2 on the PSU
and the Logic board
Go to Step 2 in the procedure
Check if there is a short circuit
on boardsY-SUS, X-SUS, SDMs,
X-BUS, or XFPCs
Go to Step 3 in the procedure
Check if there is a short circuit on
boards ABUS-L, ABUS-R, or ADMs
Go to Step 4 in the procedure
Check if Vcc (5V), Vs (85V) and
Va (63V) are present
on PSU and boards
Service Modes, Error Codes, and Fault Finding
PDP Repair procedure Board Swap
Figure 5-4 Problem analysis procedure: PDP repair / board swap
Vertical Line / Vertical Bar?
Go to the
"Vertical line/Vertical bar"
problem analysis procedure
Logic Board Exchange
Copy data from the
defective Logic board
Restore data into the new
Auto alignment procedure
FHP PDP 5.
Horizontal bar?
Go to the
"Horizontal bar"
problem analysis procedure
procedure.
Use of ComPair
board
Ship Out
EN 13
G_16400_025.eps
310706