.!29!.
6-3 BLANKING
NG
OK
CHECK THE RELATIVE
CIRCUIT OF BLANKING
CHECK THE RELATIVE CIRCUIT
ON MAIN PCB
CHECK G1 RELATIVE CIRCUIT
CHECK IC801 PIN 16 ON VIDEO PCB,
Q705, R718, C707 ON MAIN PCB
OF C433, D410, R635, R636, IC105
6-4 HOR./OSC/DEF/HV CIRCUIT FAULT
1. NO RASTER (DISCONNECT WITH SIGNAL CABLE)
NG
OK
OK
OK
NG
NG
NG
CHECK THE COLLECTOR VOLTAGE
CHECK THE COLLECTOR VOLTAGE
RELATIVE CIRCUIT
RELATIVE CIRCUIT
CHECK IC401 PIN 26 ~ 31
CHECK Q402, T401
CHECK T401, T402, Q402, Q403,
OF Q402 ABOUT 40Vpp
OF Q403 ABOUT 1100Vpp AT FH:31KHz
D408, C418, C419, H-DY
CHECK IC401 PIN 10 ABOUT 11.5 VDC
CHECK IC401 PIN 8 WAVE FORM
ABOUT 10Vpp
CHECK IC401 PIN 10 RELATIVE CIRCUIT
CHECK THE RELATIVE CIRCUIT OF
D424,C451,R497 ON MAIN PCB
CHECK IC801 PIN 16 ON VIDEO
PCB,CHECK G1 RELATIVE CIRCUIT
Q704,R718,C713 ON MAIN PCB
CHECK THE DRAIN VOLTAGE
OF Q409 ABOUT 150Vpp
CHECK THE COLLECTOR
VOLTAGE OF Q410 ABOUT
900Vpp AT FHH:31KHz
CHECK Q409 T401 RELATIVE
DIRCUIT
CHECK T401, T402,Q409,
Q410,D412,C424,H-DY
To Next Page
Loading...
Need help?
General