
18
6-3 NO BLANKING
NG
OK
CHECK THE RELATIVE
CIRCUIT OF BLANKING
CHECK THE RELATIVE CIRCUIT
CHECK G1 RELATIVE CIRCUIT
CHECK R859 ON VIDEO PCB,
FBT PIN 5 ON MAIN PCB
OF Q601, Q707
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 Q402, T401
CHECK T401, T402, Q402, Q403,
ABOUT 3Vpp
OF Q403 ABOUT 1200Vpp AT FH:31KHz
D408, C418, C419, H-DY, B+
CHECK IC401 PIN 26 WAVE FORM
CHECK IC401 PIN 4~7, PIN 13
CHECK IC401 PIN 29 ABOUT 12 VDC
CHECK IC401 PIN 29 RELATIVE CIRCUIT
OF Q402 ABOUT 20Vpp
CHECK R858 ON VIDEO PCB, CHECK G1
RELATIVE CIRCUIT FBT PIN 5 ON MAIN
PCB.
CHECK THE RELATIVE CIRCUIT OF
Q705, Q708
Содержание S761U
Страница 1: ...SERVICE MANUAL COLOR MONITOR SPECTRUM 7V SERIES S761U V 41AS761 E11 ...
Страница 22: ...7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Страница 25: ...LOCATION CMS761U2N SPECIFICATION ...
Страница 26: ...LOCATION CMS761U2N SPECIFICATION LOCATION CMS761U2N SPECIFICATION ...
Страница 27: ... PARTS LIST OF MAIN PC BOARD LOCATION AMS761U SPECIFICATION LOCATION AMS761U SPECIFICATION ...
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Страница 34: ...LOCATION AMS761U SPECIFICATION ...
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Страница 39: ...LOCATION AMS761U SPECIFICATION PARTS LIST OF CRT PC BOARD LOCATION CRS761U SPECIFICATION ARS761U CRT BOARD ...
Страница 40: ...PARTS LIST OF CRT AUTO INS PC BOARD LOCATION ARS761U SPECIFICATION LOCATION ARS761U SPECIFICATION ...
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