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Adjustment Location :
[ BD BOARD ] — SIDE B —
TP
(RF)
TP
(VC)
TP
(FE)
TP
(AGCCON)
TP
(IOP)
VIDEO SECTION
TE
L 13942296513
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 –
D502
SL501
SL502
TEST MODE
VIDEO
FREQUENCY
www
.
http://www.xiaoyu163.com
TP
(TE)
SL503
IC505
(27MHz)
CT503
IC507
(GND)
x
ao
y
i
http://www.xiaoyu163.com
8
Q Q
3
6 7
1 3
VIDEO board
(27 MHz)
[ VIDEO BOARD ] – SIDE B –
SL503
TEST
SL502
MODE
SL501
u163
.
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
frequency counter
+
–
(27MHz)
IC506
(GND)
IC502
m
co
9 9
2 8
9 9
17
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