Diagrams; Circuit Boards Location - Sony HCD-VR50 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
Adjustment Location :
[ BD BOARD ] — SIDE B —
TP
(RF)
TP
(VC)
TP TP
(FE) (TE)
TP
(AGCCON)
TP
(IOP)
VIDEO SECTION
T E
L 1 3 9 4 2 2 9 6 5 1 3
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 SL503
TEST MODE
IC505
(27MHz)
CT503
VIDEO
IC507
FREQUENCY
(GND)
w w w
.
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frequency counter
VIDEO board
+
(27 MHz)
–
[ VIDEO BOARD ] – SIDE B –
(27MHz)
IC506
(GND)
SL503
TEST
IC502
SL502
MODE
SL501
x a o u 1 6 3
y
i
– 17 –
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8 9

7-1. CIRCUIT BOARDS LOCATION

PANEL FL board
TC-A board
PANEL VR board
FRONT INPUT board
Q Q
3 7 6 3 1 5 1
LEAF SW board
AUDIO board
c o
.
CD MOTOR board
SECTION 7

DIAGRAMS

2 4 2
9 8
TUNER UNIT
JACK board
VIDEO board
TC-B board
TRANS board
LED (PANEL) board
5 0 8 9 2 4 9 8 2
CD-L board
DOOR SWITCH board
CD-R board
TABLE SENSOR board
BD board
m
LED (CD) board
– 18 –
HCD-VR50/VR70
9 9
TUNER UNIT is supplied
as the assembled block.
MAIN board
9 9
PA board