18
HCD-VM330AV
Checking Location :
[ BD BOARD ] — SIDE B —
TP (DVC)
TP (FEO)
TP (XPCK)
TP (TEO)
TP (RFDC)
TP (VC)
TP
(RFAC)
IC103
IC101
TP (FEI)
R120
VIDEO SECTION
Video Frequency Adjustment
Connection:
Procedure:
1. Connect a frequency counter to TP (27MHz) and TP (GND).
2. Turn power switch on.
3. Turn the [FUNCTION] knob of amplifier unit (TA-SV7AV) to
set the CD function.
4. Adjust CT503 on the VMP board so that the frequency counter
reading 27.0 MHz ± 80 Hz at stop status.
Adjustment Location:
[VMP BOARD] (SIDE A)
J301
CN501
CN502
IC507
TP (GND)
TP (27MHz)
CT503
Video
Frequency
Adjustment
VMP board
TP (27MHz)
TP (GND)
frequency counte
w
w
w
.
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i
a
o
y
u
1
6
3
.
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Q
Q
3
7
6
3
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1
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9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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