7-21
CONTINUE1 CONTINUE2 CONTINUE3
NG
NG
OK
Measure the voltage at C5P1 on the SW/HV PWB(PWE-571).
NG
OK
Check the pulse at Q5R1 gate on the SW/HV PWB
(PWE-571).
OK
NG
Check the pulse at pin 14 of IC5W1
on the HVCT PWB (PWE-623).
NG
OK
OK NG
CONTINUE1 CONTINUE2 CONTINUE3
Remove L5R1 and check 80V line again.
・
Video amplifier IC721 on the VIDEO
PWB (PWE-567A) failure.
・
Check SW REG circuit. (see item 13)
Q5R1 and its ambient circuit failure.
Check 15V line.
Check SW REG circuit. (see item 13)
Check HV drive pulse.
・
Q5R1 and ambient circuit failure.
・
T5R1 (FBT) failure.
Check the horizontal trigger pulse.
・
CN-DF Failure.
・
CNPCS or R5W7 Failure.
Check waveform at pin1 of CNPCS.
・
R5P1,R5P2 failure.
approx.15V
Horizontal period
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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