CM150/PV150
3-4
GM CHASSIS
TROUBLESHOOTING
Check Standby Conditions
150VDC - CR3402 C
Power Supply
Main Module
5VSB - R4108
Check Standby Conditions
Power ON Conditions
Main Module
5VSW - W 9
Power ON Conditions
Power Supply
3.8VDC - R3432
Power ON Conditions
Power Supply
115VDC - RX3437 left end
YES
NO
NO
NO
NO
NO
YES
YES
YES
Check AC Power
Then Replace
Power Supply
Check 6A3 Cable
Then Replace
Main Module
Replace
Main Module
Check 6A3 Cable
Then Replace
Power Supply
Replace
Power Supply
Sweep ON Conditions
Power Supply
H DRV - R3264
4V p-p / 1V AC
Sweep ON Conditions
Power Supply
250VDC - RX3206
HV ON Conditions
Power Supply
Unplug 4F
250VDC - RX3206
YES
YES
NO
YES
NO
NO
Check 2N3 Cable
Then Replace
Main Module
Check System
For Video
Shut Down
Replace
Focus Block
HV ON Conditions
Power Supply
47 - 52K ohm - 4F
YES
NO
Replace
Power Supply
Replace
Focus Block
250VDC - RX3206
Replace
Power Supply
NO
Also Check CRTs
Also Check CRTs
POW ER UP CHECKS - DEAD SET
SW EEP/HV CHECKS - DEAD SET
15VSB - L3416
37VSB - CR3488 cath
PW RFA - R3442
(F5)
(E6)
(E6)
(E5)
(C2)
(E5)
(C2)
(E6)
(E4)
(E5)
(G2)
(G2)
(G4)
(G4)
(E3)
(G4)
GM A Line Projection TV
# = H DRV can also be checked
on top of the 9-1642/1645
2N3 pin 2
Содержание A50M84D Series
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