Philips 202P4 - Repair Flow Chart

82
201P GS3 CM25
A. Power Supply Failure
1. Sympton :
no startup sound
LED light off
check 7121 pin1
Waveform right?
check 7121
pin2
Ok
NO
check 7121
pin 3
check
1103/6101/
7121 pin3/2103
Ok
NO
check
3121/3123
replace 7121
NO
check 7121
pin4
check 6125
2. Sympton :
hicup mode with
startup sound or
blinking LED
check 3121,3123,3125
check 7121
pin 4
Ok
replace 7121
check
3106/3111
Ok
NO
OK
No
replace 5130
No
check 7143 pin3
voltage dip
check 7143 pin1
12V< pin1 < 15V
check 7121
pin 1
Ok
check
6147/5131
7135/2163
No
check
+5V loading current
Turn power off
check the resistance for
all output voltages+230,
80,+15,-15,+6.3,+5V,check
6131,6133,6134,6137,6139
replace 5130
check
7141/7155/7144
3. Sympton:
abnormal sound
check 7121
drain waveform
right?
check
frequency
Ok
Ok
No
check
6104/3104/3105
2103/2104/3106
replace 5130
No
OK
Ok
Repair Flow Chart
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