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IC (PD6033) terminal descriptions
Pin
S ymbol
1/0
Terminal name
Description
No.
display
1
EX ta I
Ceramic oscil-
--
Internal clock oscillator external circuit terminal
2
Xtal
lator "3M Hz"
3
Reset
I
CPU initial reset input
�
Normally "H"
4
00
0
ARM
I>
Tonearm motor drive output (toward outside edge)
�
5
01
0
ARM
<l
Tonearm motor drive output (toward center)
�
6
02
0
EV 1
Tonearm EV drive output (drawing plunger in)
ON
I
OFF
Drawing time
1 sec
7
03
0
EV 2
Tonearm EV drive output (holding plunger in)
ON
I
OFF
8
04
0
TRACKING
Tonearm tracking output during tracing
ON
I
OFF
9
05
0
33/45
Phono motor 33/45 switch output
-
�
10
06
0
PH ONO-MOTOR
Phono motor START/STOP output
Start
i
Stop
11
Q7
12
RO
I
0/C
Cover 0/C detection input
Open
i
Closed
13
Rl
14
Vss
--
GND
15
R2
I
45rpm
33/45 switch 45 input
Closed
i
AUTO
16
R3
I
33rpm
33/45 switch 33 input
Tonearm START/STOP switch in�ut
I
AUTO
17
R4
I
REP
Repeat switch input
ON
I
OFF
18
R5
I
<l
Locate switch input (toward record center)
ON
I
OFF
19
R6
I
EV
Tonearm elevation switch input
ON
I
OFF
20
R7
I
I>
Locate switch input (Toward outside edge)
ON
I
OFF
21
R8
I
SIS
Tonearm START/STOP switch input
ON
I
OFF
22
R9
0
UP LED
Tonearm UP display LED output
UP
I
DOWN
23
R10
0
REP LED
Repeat display LED output
ON
I
OFF
24
KO
I
30 SIZE
30 cm record detector input
�
25
Kl
I
17 SIZE
17 cm record detector input
�
26
K2
I
ADDRESS
Address sensor input
-11.Iu
27
K3
I
REST
Rest switch input
On rest
I
Off rest
28
Vee
--
+5V
12