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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)
Pin No.
30
RDS-ON
"H'': tuner power on (LED on)
31
32
HP-CHK
TC-SW
I
Headphone check detection signal input terminal
I
Half detect (side A and B) switch and cassette in detect switch input terminal (A/D input)
Disc tray position detect switch (S901, 902) input terminal (A/D input)
"L": close position, "M'': open position, "H": moving
Key input terminal (A/D input)
$817 to S822, $824 and S825 (STANDBY Vb, CD, TUNER,
TAPE, MD/VIDEO, DSG, TUNER BAND, CD SYNC keys input)
Key input terminal (A/D input)
$801 to S808 (TUNING MODE, CD Pll/i/PP1/Ked , PLAY
MODE, REPEAT, CD EJECT & keys input)
33
TRAY-SW
Ww
4
KEY3
Ww wn
KEY2
Key input terminal (A/D input)
$809 to S816 (TAPE ~<@ B>/E/PP/<4<4/11, REC @, TUNING +/- keys input)
Destination setting terminal (A/D input)
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"
Main system clock input terminal (4.19 MHz)
Main system clock output terminal (4.19 MHz)
KEY1
37
SIMUKE
_
al
38
Ww ON
39
EXTALI
40
XTALI
S
XTAL2
EXTAL2
AVREF
AVSS
Sub system clock output terminal (500 kHz)
Not used (open)
<
n
wa
ies Wn ies]
3
wR
42
43
44
5
I
Sub system clock input terminal (500 kHz)
Not used (fixed at "L")
I
Reference voltage (+5V) input terminal (for A/D conversion)
round terminal (for A/D conversion)
Liquid crystal display bias on/off control signal output terminal
a
On —_
leas
47 to 49 | VLC3 to VLC1
50 to 53 | COMO to COM
54 to 85 | SEGO to SEG3
Power supply terminal for the liquid crystal display bias
Common drive signal output to the liquid crystal display (LCD801)
Segment drive signal output to the liquid crystal display (LCD801)
Recording bias on/off selection signal output to the HA12203NT (1C352)
"L": bias on, "H": bias off
Recording muting on/off selection signal output to the HA12203NT (IC352)
"L": muting on, "H": muting off
Dolby NR on/off selection signal output to the HA12203NT (IC352)
"L": dolby on, "H": dolby off
Power supply terminal (+5V)
Power supply on/off control signal output of the CD block (+5V)
LED drive signal output of the CD indicator (D852)
"H': CD power on (LED on)
Recording/playback selection signal output to the BA3126N (IC350) and HA12203NT (C352)
"L": playback mode, "H": recording mode
Line muting on/off selection signal output to the HA12203NT (IC352)
"L": muting on, "H": muting off
:
—_
REC-BIAS
87
REC-MUTE
wo
8
DOLBY
DD
Z a
he
<
SS
Oo N
<
\O
o
~
EX
\o
4
CD-ON
©
5
REC/PB
L-MUTE
=
Zz m
ie)
c |
=
Cc =| ies]
97
Muting on/off control signal output terminal
"H'": muting on
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)
Wakeup control signal input terminal
TC-ON
P
100
CD-SCOR
_
Es
29
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