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Sony D-E660 Service Manual page 10

Portable cd player
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Pin No.
Pin name
41
X3037
42
XHGOM
43
XLAT
44
XSOE
45
HP ATTENUATION
46
XPOWLT
47
RESERVE
48
XAPC OFF
49
SEG15
50 to 64
SEG14 to SEG0
65 to 68
COM3 to COM0
69 to 71
V3 to V1
72, 73
C1, C0
74
STOP
75
TEST
76
BBSW
77
XLED
78
RESET
79
XIN
80
XOUT
I/O
O
Mode select terminal for IC601.
O
Optical pick-up power ON/OFF control signal output terminal.
O
Serial data latch pulse signal output to IC601.
O
Serial data output enable signal output terminal.
O
Headphone attenuater ON/OFF signal output.
O
Latch signal output to the power control (IC401).
O
Not used (Fixed at "H").
O
APC mute signal output terminal. "L": mute
Not used (open).
O
Segment drive signal output to the liquid crystal display.
O
Common drive signal output to the liquid crystal display.
O
Bias signal output to the liquid crystal display driver.
O
Capacitor connected terminal for the liquid crystal display driver voltage-up.
O
VCD control stop signal output terminal. Not used (Fixed at "L").
I
Test terminal for IC (Fixed at "L").
O
ON/OFF control signal output to the headphone amplifier (IC302).
O
LCD back light control signal output to the liquid crystal display. (EJ616CK)
System reset signal input from the power control (IC401). "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to
"H"
I
System clock input terminal.
Not used (OPEN).
– 10 –
Description
"L": ON

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