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2 | PAS
Speed select is performed by key scan.
3 | PBo |)
4 | PBI
key scan input
5 | Ppa
(keys are read by key scan of PG ports.)
PB3
a
PCO
Arm motor forward control
a
6
7
8
PC1
Arm motor backward control
9
0
PC2
Arm motor on/off select
1
PC3
t—+————
pCueing control
11 | PDO
pe
: re
—
12 | PD
Muting relay control (Muting is off at "H")
13 | PD2
Synchro recording control (Synchro recording is on at "H")
fr
14
| PD3
Turntable speed select (45 rpm "H", 33 rpm "L")
(ene
Ih
15. | PEO
Reading for stylus cue-down position adjusting time
16 | PEt
Tonearm rest position detection
("L" when tonearm is at rest)
17'
PE2
Blank pulse detecting signal input terminal
18 | PE3
Offset angle detecting signal input terminal
19
| TEST
Test terminal
20 | VSS
Ground terminal
21
| OSC1
Clock oscillation terminal
'R205.
6
25 | PEI
ons
.
C201
26 | PF2
|
91011
2 13 1415 16
ee
eee
|
28 | PGO
Key scan and offset angle read strobe
29
| PG1
Key scan and stylus cue-down position read strobe
30 | PG2
Key scan output
31 | PGS
—
2
—_—
ee
32 | PIO
Program No. 1 indicator display
33. | PI
Program No. 2 indicator display
34 | Pl2
Program No. 3 indicator display
35 | PIS
Program No. 4 indicator display:
lights up at "L"
Program No. 5 indicator display
2SD1423, 2SC3311
pin
+
Program No. 7 indicator display
SVTDTA114S
SVILC6520CPB | 42 pin
39 | PJ3
Program No. 8 indicator display
ee
Power supply (+5V)
Program No. 6 indicator display
ace
Na
ON1161
SVDSEL1121R
MA4056
18S$254, SVDERA15
ON1186
Turntable start/stop select terminal ("L" start, "H" stop)
|
Anode
4
34
3
2
12
1
1
Anode
Cathode
Anode
1
%
L,
So
°
Cathode
~Cathode
a
4
a
A
Ca o¥g}—
A
Cao—q—_~A
— 15 —
=s6 =
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