Read Sony MHC-VX3 (serv.man2) Service Manual online
17
VIDEO SECTION
Frequency adjustment
1.
Connect the frequency counter to check point of the VIDEO
board.
board.
2.
Adjust CT503 of the VIDEO board so that the frequency
counter read 27MHz ± 80Hz at STOP condition.
counter read 27MHz ± 80Hz at STOP condition.
[ VIDEO BOARD ] – SIDE B –
Adjustment Location :
[ VIDEO BOARD ] – SIDE A –
frequency counter
VIDEO board
(27 MHz)
(27 MHz)
+
–
–
SL501
IC502
IC506
(27MHz)
(GND)
SL502
SL503
TEST
MODE
SL501
D502
SL502
CT503
SL503
TEST MODE
VIDEO
FREQUENCY
(27MHz)
(GND)
IC507
IC505
Adjustment Location :
[ BD BOARD ] — SIDE B —
TP
(VC)
(VC)
TP
(RF)
(RF)
TP
(TE)
(TE)
TP
(IOP)
(IOP)
TP
(FE)
(FE)
TP
(AGCCON)
(AGCCON)
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