Sony HCD-VX99 Service Manual page 22

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Adjustment Location :
[ BD BOARD ] — SIDE B —
TP
(RF)
TP
IC102
(VC)
TP
(AGCCON)
TP TP
(FEO) (TEO)
TP
(AGND)
TP
(IOP)
TE
L 13942296513
VIDEO SECTION
Frequency adjustment
1. Connect the frequency counter to check point of the VIDEO
board.
2. Adjust CT503 of the VIDEO board so that the frequency counter
read 27MHz ± 80Hz at STOP condition.
Adjustment Location :
[ VIDEO BOARD ] – SIDE A –
SL501 SL502
SL503
TEST MODE
(27MHz)
CT503
VIDEO
FREQUENCY
(GND)
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.
22
http://www.xiaoyu163.com
TP
(DGND)
IC505
IC507
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http://www.xiaoyu163.com
2 9
8
Q Q
3 6 7 1 3 1 5
VIDEO board
(27 MHz)
[ VIDEO BOARD ] – SIDE B –
SL503
TEST
IC502
SL502
MODE
SL501
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
frequency counter
+
–
m
9 9
9 9