Sony HCD-GB3 Service Manual page 21

Q Q
3 7 6 3 1 5 1 5 0
• Circuit Boards Location
PANEL board
T E
L 1 3 9 4 2 2 9 6 5 1 3
JACK board
w w w
HCD-GB3
MAIN board
AMP board
REG board
BD83S board
x a o
y
. i
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• Waveforms
– MAIN Board –
1
IC801 w; (XOUT)
13.3 µ s
500m V/DIV, 4 µ s/DIV
POWER board
Q Q
3 7 6
u 1 6 3
.
21 21
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2 4
8 9 9
– PANEL Board ––
2
IC701 qd (X0A/P90)
1.5 Vp-p
2.2 Vp-p
30.5 µ s
0.5 V/DIV, 10 µ s/DIV
3
IC701 od (X0)
3.3 Vp-p
239 ns
1 V/DIV, 100 ns/DIV
3 1 5 1 5 0 8 9 2
m
c o
HCD-GB3
2
8 9 9
– BD83S Board –
4
IC201 u; (RFACO)
(CD PLAY mode)
0.5 to 1.3 Vp-p
200 mV/DIV, 500 ns/DIV
5
IC201 <z/, (XTAO)
(CD PLAY mode)
3.3 Vp-p
59.1 ns
1 V/DIV, 20 ns/DIV
6
IC201 1 (LRCK)
(CD PLAY mode)
3.3 Vp-p
4 9 8 2 9 9
22.7 µ s
1 V/DIV, 10 µ s/DIV
7
IC201 5 (BCK)
(CD PLAY mode)
3.4 Vp-p
472 ns
1 V/DIV, 200 ns/DIV