18
6-3 NO 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 IC801 PIN11 VIDEO PCB,CHECK
G1 RELATIVE CIRCUIT
Q702,Q703,Q704,C711,C712
CHECK THE RELATIVE CIRCUIT OF
D424,R497,ZD404 ON MAIN PCB
CHECK THE COLLECTOR
VOLTAGE OF Q410 ABOUT 900Vpp
AT FH:31KHZ
CHECK THE DRAIN VOLTAGE OF
Q409 ABOUT 40Vpp
CHECK Q409,T401 RELATIVE
CIRCUIT
CHECK Q410,D412,C424,H-DY
Q408,R449
Содержание AF715 Series
Страница 1: ...SERVICE GUIDE COLOR MONITOR AF715 Series 41AB793Z ACER A00 P N B793Z 01 A Date Mar 18 03 Ver A00 ...
Страница 23: ...22 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Страница 45: ...44 10 IC BLOCK DIAGRAM IC201 IC701 IC906 LM358 IC101 NT6861 ...
Страница 47: ...46 ...
Страница 49: ...48 IC802 NT6828 IC801 TDA4887 ...