Philips FPF32C106128UA-51 Service Manual page 17

Service Modes, Error Codes, and Fault Finding
2
ABUSR Board
Va CN42 pins 1 - 4
Vcc CN42 pins 5 -7
are shorted?
N
Only the Logic board CN306 and CN307 are
connected.
Connect set to mains
Switch vacation switch on
Switch set on via RC
PSU Board
Vcc 5V exists a few
seconds?
Y
Disconnect the set from AC Mains
3
Short-circuit check on Power Supply Lines
Y
Remove ADM from the following connectors
CN43, CN44, CN45, CN45
ABUSR Board
Va CN42 pins 1 - 4
Vcc CN42 pins 5 -7
are shorted?
Y
N
Check if VCEGO
is High
Logic board is
defective
In step 3 the 5V Vcc will be checked by use of an external PSU.
First adjust the current output on the external PSU to 5V 0.5A
Connect external PSU to Diodes D6224 and/or D6225 on the set
Figure 5-7 Short circuit check on power supply lines (2/2)
FHP PDP
ADM is defective
N
PDP is defective
ABUSR Board is defective.
Replace ABUSR board
Replace Logic Board
Follow Logic board replacement
procedure
Set V output to 0V
PSU (D6224 not present in FM33).
See diagram P7
5. EN 17
End of analysis
E_14580_011.eps
101005