7-11
5. ABNORMAL PICTURE
5-1. Horizontal Size
Measure the voltage at CRT anode.
Normally, the voltage is approx. 27kV.
NG
OK
Check the voltage at CNP pin 6 on the VIDEO PWB (PWE-567A).
NG
OK
NG
OK
f H 7
3 3 . 6 k H z
3 6 . 6 k H z
4 1 . 5 k H z
4 5 . 8 k H z
5 2 . 7 k H z
5 7 k H z
6 9 . 5 k H z
8 2 . 6 k H z
1 1 0 k H z
1 0 1 k H z
f H 3
f H 5
f H 1
f H 2
f H 6
4 9 k H z
6 5 . 5 k H z
f H 4
1 2 1 k H z
1 3 0 k H z
3 0 . 8 k H z
Fig 5.1.1
CONTINUE
SW REG. failure (see item 13)
Check the voltage which is supplied to CPU
IC801, IC802, IC8G1, IC7A1or their ambient circuit failure
Check the horizontal frequency mode output (IC571 pins 4
~
7
、
10
~
12) See Fig. 5.1.1
Check HV voltage
HV circuit failure (see item 6)
Check 8.5V line
Summary of Contents for MultiSync FP1370
Page 13: ...4 4 REMARK SYMBOL Mount the EMF PWB 121E REMARK SYMBOL Clamp the connector ...
Page 14: ...4 5 REMARK SYMBOL COIL FORMING UPPER SIDE REMARK SYMBOL COIL FORMING LOWER SIDE ...
Page 23: ...4 14 REMARK SYMBOL REMARK SYMBOL Clamp CN CA CN CC and CN D with CLAMPER WIRE ...
Page 26: ...4 17 REMARK SYMBOL Clamp the wires SAFETY REMARK SYMBOL Clamp the wires CN ASD CN AF 21 ...
Page 80: ...5 51 Fig 3 11 CONV PWB Fig 3 12 EMF PWB CN EMF CN LL CN RR CNEM CN CA CN D CN CCB HS8N1 ...
Page 143: ...8 18 15V 80V AFC D FOCUS Fig 3 1 HIGH VOLTAGE CIRCUIT AND PROTECTOR CIRCUIT ...
Page 260: ...10 1 ...
Page 261: ...10 2 ...
Page 262: ...10 3 ...
Page 263: ...10 4 ...
Page 264: ...10 5 ...
Page 266: ...for Human Potential ...
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