Philips S42SD-YD09 Service Manual page 25

Service Modes, Error Codes, and Fault Finding
Check CN8001/2pin
Connect [ 220Vac]
Check
LED 8001,8002
Green
Figure 5-7 Power Supply Check for 42" HD w1 models 1/2
On/OFF Relay
(RLY 8001, 8002
SMPS
Acts?
Check Protection,
SMPS
LED 8004(RED) is
OFF?
Check output voltage
Vs, Va, Vset, Vscan, Ve
Replace SMPS
Figure 5-8 Power Supply Check for 42" HD w1 models 2/2
AC Input
YES
O SMPS
1
NO
LED (Green)
8001, 8002 off
YES
O
NO Open CN 8001
1
Until LED 8004 OFF,
Then Reset SMPS
YES
NO
SDI PDP 2K6
NO
Reconnect it
SMPS Voltage check
NO
D5V: 5V Check
Vs: 195V Check
Va: 65V Check
Vset: 190V Check
Vscan: -190V Check
Ve: 110V Check
Vcc: 15V Check
D3V3: 3.3V Check
5Vstandby: 5.2V Check
Fuse
8001/8002/8005/8007
Replace SMPS
G_16380_124.eps
Replace
SMPS
NO
Check
Vs_on
YES
Turn off Relay SW
->
Open these connectors
One by One
- CN8002, X-Main check
- CN8003, Y-Main check
- CN8005/CN8006 Buffer check
Check output voltage
Vs, Va, Vset, Vscan
,Ve
YES
Go to 5.2.3 No Display
5. EN 25
190606
If LED 8004 is ON
Under voltage
O
Checking, repeat 1
NO
Replace SMPS
G_16380_124a.eps
190606