Sony HCD-EC68P - Printed Wiring Board - MOTOR Board (EC68 P;EC78 P: US, Canadian Models); Schematic Diagram - MOTOR Board (EC68 P;EC78 P: US, Canadian Models)

HCD-EC68P/EC78P
HCD-EC68P/EC78P
3939
M001
CN001
S001
5P
OPEN SW
CLOSE SW
OPEN
CLOSE
(LOADING)
DGND
CLOSE
OPEN
CD TRAY
OPEN/CLOSE
DETECT
PAN EL
BOARD
CN311
Q
CN001
S001
A
B
1234567
1-866-548-
21
(21)
MOTOR BOARD
Q
PANEL BOARD
CN311
DISC TRAY
OPEN/CLOSE
DETECT
OPEN 5CLOSE
M
M001
(LOADING)
(Page 37)
6-17. PRINTED WIRING BOARD - MOTOR Board (EC68P/EC78P: US, Canadian models) -
6-18. SCHEMATIC DIAGRAM - MOTOR Board (EC68P/EC78P: US, Canadian models) -
• : Uses unleaded solder.
• See page 27 for Circuit Boards Location.
• Waveforms
– CD Board –

IC101 XG (XO)
(CD play mode)
1 V/DIV, 20 ns/DIV
59.1 ns
3.3 Vp-p

IC101 JB (RFi)
(CD play mode)
200 mV/DIV, 500 ns/DIV
0.5 to 1.3 Vp-p
XB
IC801 RM (XIN)
500 mV/DIV, 5 μs/DIV
13.3 μs
1 Vp-p
– MAIN Board –
FT
IC301 PT (X1)
1 V/DIV, 50 ns/DIV
166 ns
3 Vp-p
FB
IC301 RG (X1A)
1 V/DIV, 10 μs/DIV
30.5 μs
3 Vp-p
– PANEL Board –
(Page 36)