7-12
CONTINUE
NG
OK
Check the operation of MQ571, Q572, Q573.
NG
OK
Measure the voltage at IC592 pin 1 and IC531 pin 12.
Normally, pin 1 voltage varies from approx. 3.5V to 5V
and pin 5 voltage varies from approx. 0.9V to 5V.
NG
OK
Measure the voltage at Q561 Collector.
Normally, this voltage varies from 850 to 1200V by H-SIZE control for user.
approx.
850
~
1200 Vp-p
approx.
2.0 usec
NG
Fig 5.1.2
OK
OK
Digital control circuit or IC592 failure
Check Q561 FBP
See Fig 5.1.2
IC571 failure
Check S-correction capacitor
Switching circuit
MQ571, Q572, Q573 failure
Check whether IC592 pin 1 on DEF PWB
and IC531 pin 5 vary by horizontal
size control in OSD menu or not
Q561, D561, D562, C561, H-DY or their ambient circuit failure
Check the distortion correction circuit (see item 5-6)
H OSC/DEF/HV circuit failure (see item 6)
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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