83
Pin No.
Pin Name
I/O
Description
86
DSENS
I
Detection input from the disc in detect sensor (D704 and Q703) on the CD mechanism block
“H”: disc detected
87
PRTC SW
I
Detection input from the CD tray door open/close detect switch (S702)
“L”: when CD lid is open, “H”: when CD lid is close
88
SOFT TEST
O
Not used (open)
89
KEY3
I
Key input terminal (A/D input) S991 to S997 (INPUT, TIME/CHAR MD,
x
(MD),
X
(MD),
H
(MD), CLEAR (MD), TIME CD keys input)
90
KEY2
I
Key input terminal (A/D input) S982 to S990 (MENU/NO, YES,
m
(MD),
M
(MD),
REC
z
, PLAY MODE MD, SLEEP, REC MODE,
A
EJECT keys input)
91
KEY1
I
Key input terminal (A/D input) S771 to S780 (
l
AMS
L
(CD), PLAY MODE CD,
DISPLAY,
x
(CD),
X
(CD),
H
(CD),
M
(CD),
m
(CD), REC-IT, CLEAR (CD) keys input)
92
KEY0
I
Key input terminal (A/D input) S901 to S913 (DISC5,
A
(CD4), DISC4,
A
(CD3), DISC3,
A
(CD2), DISC2,
A
(CD1), DISC1,
A
(CD1), CD SYNCHRO NORMAL, CD SYNCHRO
HIGH,
A
(CD5) keys input)
93
SPEC IN
I
Destination setting terminal (fixed at “H” in this set)
94
LEVEL L
I
L-ch level input from the system controller (IC801)
95
LEVEL R
I
R-ch level input from the system controller (IC801)
96
AVSS
—
Ground terminal
97
TE
I
Tracking error signal input terminal Not used (open)
98
VREF
I
Reference voltage (+5V) input terminal (for A/D converter)
99
AVCC
—
Power supply terminal (+5V) (for analog system )
100
XRST
O
Reset signal output to the CD block
