Philips FPF32C106128UA-51 Service Manual page 15

Service Modes, Error Codes, and Fault Finding
Problem Analysis Procedure the entire screen does not light.
N
Check supply voltages
Vcc pin 6 Cn306
Vs pin 10 Cn323
Va pin 1 Cn323
Vcc Pin 3 Cn323
Vcc pin 7 Cn342
Vcc pin 7 Cn352
Figure 5-5 Problem analysis procedure the entire screen does not light
The entire screen does not light
All the boards are connected
Connect the set to mains.
Switch the set on via vacation switch
Standby LED is on?
Set is in Standby?
Y
Check 3.3V Stby
on pin 1 CN6
Logic board
Y
3.3V Standby is ok.
Switch on the set via RC
Y
Set is going into protection?
Y
Disconnect the mains plug.
Remove the following power connections
CN23 X-Sus
CN33 Y-Sus
CN42 ABUSR
CN52 ABUSL
1
FHP PDP
Caution: never disconnect connectors or
remove boards when the mains plug is connected.
Allow discharge of power supplies before
disconnecting connectors!
N
N
Switch vacation switch off
Disconnect CN306 Logic board
Switch vacation switch on and check
3.3V Stby on PSU
3.3V Stby
on pin 1 Cn306
is ok?
Y
CC on Logic board
Replace Logic Board
Follow Logic board
replacement procedure
5. EN 15
N
Defect is on PSU
board.
Standby supply repair
See PSU repair
method
E_14580_009.eps
101005