7-8
3. UNSTABLE PICTURE
3-1.Horizontal
Measure at CN-AF 5 pin (HD) on the VIDEO PWB (PWE-567A)
NG
Check the sync pulse at Mini D-SUB 13pin on the VIDEO
PWB (PWE-567A).
NG
OK
Check the pulse (HD) at IC731 22 pin on the VIDEO PWB
(PWE-567A).
NG
OK
OK
Check H sync
Check the input H sync
Signal cable failure
Check the output pulse
Q7Y1, Q7Y2, Q7Y5, Q7Y6, Q734, Q735, IC731 and their ambient
circuit failure on the VIDEO PWB (PEW-567A).
IC7A1 and their ambient circuit failure on the VIDEO PWB (PWE-567A).
・
H OSC/DEF/HV circuit failure (see item 6).
・
Digital control circuit failure (see item 12).
Содержание MultiSync FP1370
Страница 13: ...4 4 REMARK SYMBOL Mount the EMF PWB 121E REMARK SYMBOL Clamp the connector ...
Страница 14: ...4 5 REMARK SYMBOL COIL FORMING UPPER SIDE REMARK SYMBOL COIL FORMING LOWER SIDE ...
Страница 23: ...4 14 REMARK SYMBOL REMARK SYMBOL Clamp CN CA CN CC and CN D with CLAMPER WIRE ...
Страница 26: ...4 17 REMARK SYMBOL Clamp the wires SAFETY REMARK SYMBOL Clamp the wires CN ASD CN AF 21 ...
Страница 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 ...
Страница 143: ...8 18 15V 80V AFC D FOCUS Fig 3 1 HIGH VOLTAGE CIRCUIT AND PROTECTOR CIRCUIT ...
Страница 260: ...10 1 ...
Страница 261: ...10 2 ...
Страница 262: ...10 3 ...
Страница 263: ...10 4 ...
Страница 264: ...10 5 ...
Страница 266: ...for Human Potential ...
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