Sony HCD-EC50, Service Manual, Page: 17 / 78

17 17
HCD-EC50
HCD-EC50
TRANSISTOR board
AMP board
GUARD (B) board
(E3, SP, KR, AUS models)
MAIN board
JACK board
PANEL board
PT board
BD83S board
• Circuit Boards Location • Waveforms
– MAIN Board –
1
IC801
w;
(XOUT)
13.3 µ s
2.2 Vp-p
5 V/DIV, 10 µ s/DIV
2
IC701
qd
(X0A/P90)
30.5 µ s
2.5 Vp-p
1 V/DIV, 10 µ s/DIV
3
IC701
od
(X0)
239 ns
2.9 Vp-p
1 V/DIV, 100 ns/DIV
4
IC201
u;
(RFACO)
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
5
IC201
<z/,
(XTAO)
(CD PLAY mode)
1 V/DIV, 20 ns/DIV
6
IC201
1
(LRCK)
(CD PLAY mode)
1 V/DIV, 10 µ s/DIV
7
IC201
5
(BCK)
(CD PLAY mode)
1 V/DIV, 200 ns/DIV
0.5 to 1.3 Vp-p
59.1 ns
3.3 Vp-p
22.7 µ s
3.3 Vp-p
472 ns
3.4 Vp-p
– BD83S Board –
– PANEL Board –
Ver. 1.3