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26
Pin No.
Pin Name
I/O
Description
30
RDS-ON
O
Power supply on/off control signal output of the tuner pack (+7.5V) and RDS decoder (IC804)
(RDS decoder: used for the AEP and UK models only)
LED drive signal output of the TUNER indicator (D855) “H”: tuner power on (LED on)
31
HP-CHK
I
Headphone check detection signal input terminal
32
TC-SW
I
Half detect (side A and B) switch and cassette in detect switch input terminal (A/D input)
33
TRAY-SW
I
Disc tray position detect switch (S901, 902) input terminal (A/D input)
“L”: close position, “M”: open position, “H”: moving
34
KEY3
I
Key input terminal (A/D input) S817 to S822, S824 and S825 (STANDBY I/
u
, CD, TUNER,
TAPE, MD/VIDEO, DSG, TUNER BAND, CD SYNC keys input)
35
KEY2
I
Key input terminal (A/D input) S801 to S808 (TUNING MODE, CD
^
/
p
/
+
/
=
, PLAY
MODE, REPEAT, CD EJECT
6
keys input)
36
KEY1
I
Key input terminal (A/D input)
S809 to S816 (TAPE
9
(
/
p
/
)
/
0
/
P
, REC
r
, /– keys input)
37
SIMUKE
I
Destination setting terminal (A/D input)
38
RESET
I
System reset signal input from the reset signal generator (IC803) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
39
EXTAL1
I
Main system clock input terminal (4.19 MHz)
40
XTAL1
O
Main system clock output terminal (4.19 MHz)
41
VSS
—
Ground terminal
42
XTAL2
O
Sub system clock output terminal (500 kHz) Not used (open)
43
EXTAL2
I
Sub system clock input terminal (500 kHz) Not used (fixed at “L”)
44
AVREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
45
AVSS
—
Ground terminal (for A/D conversion)
46
VL
O
Liquid crystal display bias on/off control signal output terminal
47 to 49
VLC3 to VLC1
—
Power supply terminal for the liquid crystal display bias
50 to 53
COM0 to COM3
O
Common drive signal output to the liquid crystal display (LCD801)
54 to 85
SEG0 to SEG31
O
Segment drive signal output to the liquid crystal display (LCD801)
86
REC-BIAS
O
Recording bias on/off selection signal output to the HA12203NT (IC352)
“L”: bias on, “H”: bias off
87
REC-MUTE
O
Recording muting on/off selection signal output to the HA12203NT (IC352)
“L”: muting on, “H”: muting off
88
DOLBY
O
Dolby NR on/off selection signal output to the HA12203NT (IC352)
“L”: dolby on, “H”: dolby off
Connected to power supply (+5V)
Sub system clock output terminal (32.768 kHz)
Sub system clock input terminal (32.768 kHz)
Recording/playback selection signal output to the BA3126N (IC350) and HA12203NT (IC352)
“L”: playback mode, “H”: recording mode
96
L-MUTE
O
Line muting on/off selection signal output to the HA12203NT (IC352)
“L”: muting on, “H”: muting off
97
LINE OUT-MUTE
O
Muting on/off control signal output terminal “H”: muting on
98
TC-ON
O
Power supply on/off control signal output of the cassette holder back light
LED drive signal output of the TAPE indicator (D854) “H”: back light on (LED on)
99
WP
I
Wakeup control signal input terminal
100
CD-SCOR
I
Subcode sync (S0+S1) detection signal input from DSP on the CD block (at CD function)
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