27
Check EE mode.
34
Is Luminance and Color
signal output
from IC301 , pin?
Is signal input into
IC301 pin?
Check INPUT selector circuit.
Is +5V supplied at
IC401 , pin?
Is REC signal input
into IC401 pin?
Check Q311, Q312.
Check power circuit.
14
12
1
2
31
NO
YES
YES
NO
NO
YES
NO
C. REC VIDEO SIGNAL N.G
YES
Check R399, R491.
YES
Is REC(H) Signal
supplied at IC401 pin?
Check REC(H).
Is REC singnal output
from IC401 , pin?
SP mode: pin
EP mode: pin
Is SW pulse input into
IC401 pin?
Check adjustment state of
R399, R491.
16
17
7
NO
NO
NO
Check IC601 pin.
YES
NO
YES
YES
Check Video Head
and connector.
YES
Change IC401
6
18
17
16
Adjustment R399, R491.
Y: 300m Vp-p
C: 80m Vp-p
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