Technics QUARTZ SA-GX100 - TERMINAL FUNCTION OF IC; IC901 Microcomputer Pin Functions

SA-GX100
Wi TERMINAL FUNCTION OF IC
© 10901 (LC6554H4097): Microcomputer
uo
Division
Peas [ 0 | seamen si ou
PAO
| Key return signal input
5 PA3
w
#3] |
< cm
De TUNING 0
TUNING 1
Key return signal input
STAND BY Power supply terminal
1 Power ON/OFF det. terminal
0 (Not used, open)
OG STEREO
38 LOUDNESS
sofa
F
A
B
vp
Stereo signal det. terminal
Received signa! det. terminal
Cassette deck contro! terminal
13
[a
Cassette deck contro! terminal
1 DECK | (Not used, connected to GND)
> > EY
OPT1 (IN)
et Not used, connected to GND
OPT1 (OUT) $1
FM AUTO/MONO select signal
MONO - Output
Muting contro! output for tuner
circuit
Muting contro! output for amplifier $12
circuit
Muting control output for amplifier
circuit
Not used, connected to GND
Ground terminal
Oscillator terminal
Reset signal input
Not used, connected to GND
27 | DATA (PFO)
a oO
nN
L (PF 1)
CE (PF2)
INT
g
i
v0 Functi
Division yncuen
lo | Level shift contro! output
Not used, connected to GND
LED drive control signal for
O rotary tuning
(Not used, connected to GND)
oO Loudness ON/OFF signal output
fe) Volume motor drive output
Rotary tuning control signal
(@) output
(Not used, connected to GND)
Power supply terminal
(negative voltage)
oO Segment'signal output
Power supply terminal
(positive voltage}
Digit signal and key scan signal
output