Philips S42AX-YD04 Service Manual page 22

EN 22 5. SDI PDP 2K7
5.2.2 Faulty Power Supply
Check CN8001/2pin
Connect [ 230Vac]
Check
LED 8001 Green
ON/OFF Relay
(RLY 8001, 8002
Acts?
Check Protection,
LED 8001(Green)
is not blinking?
Check output voltage
Service Modes, Error Codes, and Fault Finding
NO
SMPS
YES
NO
SMPS
YES
NO
Replace SMPS
Vs, Va
Figure 5-4 Power Supply Check for 42" HD W2 & 42" HD W2 Plus models
NO
AC Input
YES
NO
SMPS
YES
LED (Green)
8001 off
The number
of blinking
2
Turn off Relay SW
Open these connectors
One by One
- CN8007, X-Main check
- CN8006, Y-Main check
Check output voltage
Vs, Va
YES
Go to "No Display"
Reconnect it
SMPS Voltage check
D5V; 5V Check
Vs ; 205V Check
Va : 63V Check
Vcc: 15V Check
D3V3; 3.3V Check
5Vstandby; 5.2V Check
Fuse
8001/8002/8003/8005
Replace SMPS
Replace
SMPS
Turn off Relay SW
1
Open these connectors
One by One
- CN8005 Buffer check
NO
Replace SMPS
H_16870_007.eps
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