JVC JX-S555, Руководство по обслуживанию

Страница: 15 / 46

(No. 70251) 15
JX-S555(J)
11. The S-Video
input at CH5 is
not output at the
Monitor output.
(Y) Q104: Emitter
(C) Q102: Emitter
H
(Y)
(C)
(Y)
(C)
NO
YES
Check Q101 to Q104, Q119, Q120
and their surroundings.
Go to check
E
.
(Y) Q114: Emitter
(C) Q113: Emitter
I
NO
YES
Go to check
J
.
Check IC101 and surroundings.
Symptom Check Results and Failures
12. Malfunction in
Y/C separation.
2.0 Vp-p
1.28 Vp-p
2.0 Vp-p
1.28 Vp-p
(Y)
(C)
(Y) M101: Pin 5
(C) M101: Pin 3
J
NO
YES
M101 defective.
Check Q112 to Q114, Q173, Q174
and their surroundings.
1.0 Vp-p
0.64 Vp-p
(Y)
(C)
(Y) Q118: Emitter
(C) Q117: Emitter
K
NO
YES
Go to check
L
.
Check IC101 and surroundings.
13. Malfunction in
Y/C separation
for monitor
output.
2.0 Vp-p
1.28 Vp-p
(Y)
(C)
(Y) M102: Pin 5
(C) M102: Pin 3
L
NO
YES
M101 defective.
Check Q116, Q117, Q175, Q176
and their surroundings.
1.0 Vp-p
0.64 Vp-p
Check Points Normal Voltage/Waveform