Technics QUARTZ ST-K50

m FUNCTIONS OF IC TERMINALS (ic901: Lc6512A3997)
pinout | MARK | SC(DESCRIPTIONOF TERMINAL
| PBs
INPUT Computer drive terminal.
DO~D13: Divided frequency data
DATA
OUTPUT
RO~R2: Reference frequency data
oe
a
ourrut [Poo
[Po
P02
P03
PEO
8
Data output t>4X08e
CL
f XOSC: Crystal OSC a
Not used in this unit.
UTPUT Auto/mono changeover terminal. (auto — 0V, mono — 5V)
OUTPUT Computer drive terminal.
Not used in this unit.
OUTPUT
INPUT Reset terminal.
TEST . :
hoe Wes Ground terminal.
te oe Not used in this unit.
INPUT OSC1
Connecting terminal for crystal oscillator.
OUTPUT | OSG2 2
wh | oe —|O
Digital signal terminal for display.
Terminal for key return signal to external key matrix.
OUTPUT Segment signal terminal for display.
Not used in this unit.
| NC |
OUTPUT
iNT
INPUT Power supply terminal of device.
Voltage of 5V is supplied during operation of device.
INPUT ae Terminal for key return signal to
PA3
Roe
PB2
Not used in this unit.
Stereo signal terminal.
SD signal terminal.
Tuner select terminal. (Ground connection)
external key matrix.
a/a uo NI] OD po
INPUT
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