Printed Wiring Board - Motor Board (Ec68P/Ec78P: Us, Canadian Models); Schematic Diagram - Motor Board (Ec68P/Ec78P: Us, Canadian Models) - Sony HCD-EC68P Service Manual

6-17. PRINTED WIRING BOARD - MOTOR Board (EC68P/EC78P: US, Canadian models) -

• See page 27 for Circuit Boards Location.
1 2
MOTOR BOARD
A
Q
PANEL BOARD
CN311 M
(Page 36)
M001
(LOADING)
B

6-18. SCHEMATIC DIAGRAM - MOTOR Board (EC68P/EC78P: US, Canadian models) -

M001
(LOADING)
S001
CLOSE
CD TRAY
OPEN/CLOSE
OPEN
DETECT
HCD-EC68P/EC78P
• : Uses unleaded solder.
3 4 5
S001
DISC TRAY
OPEN/CLOSE
DETECT
OPEN CLOSE
OPEN
CLOSE
DGND Q
CLOSE SW
OPEN SW PANEL
BOARD
CN001 CN311
5P (Page 37)
• Waveforms
– CD Board –
6 7
IC101 (RFi)
(CD play mode)
200 mV/DIV, 500 ns/DIV
IC101 (XO)
(CD play mode)
21
1-866-548- (21)
59.1 ns
1 V/DIV, 20 ns/DIV
39 39
– MAIN Board –
IC801 (XIN)
1 Vp-p
0.5 to 1.3 Vp-p
13.3 μs
500 mV/DIV, 5 μs/DIV
3.3 Vp-p
HCD-EC68P/EC78P
– PANEL Board –
IC301 (X1A)
3 Vp-p
30.5 μs
1 V/DIV, 10 μs/DIV
IC301 (X1)
3 Vp-p
166 ns
1 V/DIV, 50 ns/DIV