Philips FPF32C106128UA-51 Service Manual page 16

EN 16 5. FHP PDP
1
X-Sus Board CN23
VCC pins 3 - 4
Vs pins 6 - 8
Va pins 1 - 4
are shorted?
N
Y-Sus Board CN33
Vcc pins 1 - 2
Vs pins 5 - 7
are shorted?
N
ABUSL Board
Va CN52 pins 1 - 4
Vcc CN52 pins 5 -7
are shorted?
N
2
Service Modes, Error Codes, and Fault Finding
Short-circuit check on Power Supply Lines
Check with an ohmmeter if following
pins are not shorted
Y
Remove SDM from the following
connectors CN34, CN35
Y-Sus Board CN33
Vcc pins 1 - 2
Vs pins 5 - 7
are shorted?
Y
Remove ADM from the
following connectors
CN53, CN54, CN55, CN56
ABUSL Board
Va CN52 pins 1 - 4
Vcc CN52 pins 5 -7
are shorted?
Figure 5-6 Short circuit check on power supply lines (1/2)
X-Sus board is defective
Y
Replace X-Sus board
N
Y-Sus board is defective.
Y
Replace Y-Sus Board
N
ABUSL Board is defective
PSU board has a short circuit
Y
Replace ABUSL Board
SDM is defective
PDP is defective
ADM is defective
PDP is defective
End of analysis
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