Read Sony HCD-ED2 Service Manual online
31
Pin No.
Pin Name
I/O
Function
45
FRECSW
I
Tape forward/reverse record sw input
/
1.7V (2k4) = frecsw on & rrecsw on
RRECSW
2.25V (3k9) = frecsw on & rrecsw off
2.89V (6k8) = frecsw off & rrecsw on
5V = frecsw off & rrecsw off
46
PLAYSW
I
Tape play/tape in sw input
/
1.7V (2k4) = play sw on & tape in sw on
TAPEIN
2.25V (3k9) = Play sw on & tape in sw off
2.89V (6k8) = Play sw off & tape in sw on
5V = play sw off & tape in sw off
47
AMS
I
Tape music search input (HI = music)
48
AREF
I
A/D convert refrence input (+5v)
49
AGND
I
A/D convert Input GND input
50
GND
I
GND
51
VDD
I
+5V
52
OPEN
O
CD loading open motor on
53
CLOSE
O
CD loading close motor on
54
POWER
O
System power output
55
MUTE-A
O
Audio mute cuntrol output
56
SEG35
O
57
SEG34
O
58
SEG33
O
59
SEG32
O
60
SEG31
O
61
SEG30
O
62
SEG29
O
63
SEG28
O
64
SEG27
O
65
SEG26
O
66
SEG25
O
67
SEG24
O
68
SEG23
O
LCD segment output
69
SEG22
O
70
SEG21
O
71
SEG20
O
72
SEG19
O
73
SEG18
O
74
SEG17
O
75
SEG16
O
76
SEG15
O
77
SEG14
O
78
SEG13
O
79
SEG12
O
80
SEG11
O
81
SEG10
O
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