Samsung HCM653W Service Manual page 62

5-3 No Raster (Sound OK)
Normal
Check High Voltage
Normal
Check CN501
pins 1, 3, 5
Normal
Check CN501
(Connector)
Normal
Check CN01
inpur pins 30, 31
Abnormal
Check CNT02
input pins 19, 21
Abnormal
Check IC02
input pin 24
Abnormal
Check IC701
input pin 8
Abnormal
Check CN01
Samsung Electronics
Check Heater
Normal
Check
IC501, 531, 561
Abnormal
Check CN501
(Connector)
Normal
Check CN01
Normal
Check CNT02
Normal
Check IC02
Normal
Check IC701
Check CRT PCB
pin 1
Normal
Check Q473
HV-REG
Abnormal
Check
Q473, IC471
Abnormal
Check
HV-OUT BLOCK
Troubleshooting
Abnormal
Check
Q473, R437A
Normal
Check Q472 input
pin "G"(HV-DRIVER)
Normal
Check
HV-OUT BLOCK
5-3