IC DESCRIPTION
OEC9032B
Pin No.
Pin Name
I/O
Description
1
VSAD
— Ground.
2
BOT
I
Tape start sensor input signal.
3
CASS DOWN/SERVICE
I
Input of CASS DOWN, TAB switch and setting of service mode.
4
EOT
I
Tape end sensor input signal.
5
VIDEO ENV DET
I
Input terminal of video RF envelope.
6
HI-FI ENV DET
I
Input terminal of HI-FI RF envelope.
7
DEW
I
Dew sensor input.
8
SLOW TRACK OFFSET
I
Slow tracking offset adjustment.
9
CYL/CAP MOTOR SELECT
I
CYL/CAP motor select input.
10
VDAD
— 5V.
11
DFG OUT
O Output terminal of DFG AMP.
12
DFG IN
I
Input terminal of DFG AMP.
13
DPG IN
I
Input terminal of DPG comparator.
14
CFG IN
I
Input terminal of CFG AMP.
15
CFG OUT
O Output terminal of CFG AMP.
16
VSSA
— Ground.
17
VREF
— Power on reset signal.
18
CTL AMP -
I
Input terminal of CTL AMP.
19
CTL AMP +
O Output terminal of CTL AMP.
20
CTL -
I
Input terminal of CTL AMP negative.
21
CTL +
I/O Input terminal of CTL AMP positive.
22
VDDA
— 5V.
23
RESET B
— Power reset.
24
TEST
I
Ground.
25
SYSTEM 1
O Open.
26
V-PB H
O Open.
27
HI-FI L
I
Input selection of audio type.
28
AUTO DET IN
I
Ground.
29
BILINGUAL L
I
Input selection of audio type.
30
STEREO L
I
Input selection of audio type.
31
2HEAD/4HEAD
I
Input terminal for heads selecting 2 head/4 head.
32
SEARCH SPEED SW
I
Input terminal for the speed selection of CUE/REV.
33
TRICK PB-L
O During special playback, this pin will output HIGH.
34
LP-H
O Output HIGH at tape speed LP.
35
SP-H
O Output HIGH at tape speed SP.
36
REC-H
O
After the tape loading, when the REC key is activated, HIGH will be
output.
37
V. REC ST H
O
When the recording current flows through the head during the
recording, this pin will output HIGH.
38
VIDEO H. SW
O Output terminal of VIDEO HEAD SW.
39
AUDIO H. SW
O Open.
40
H. AMP SW
O Open.
41
COLOR ROTARY
O Open.
42
DUMMY-V
O Imitation vertical signal output.
43
VDD
— 5V.
44
PWM0
O PWM output for error signal of drum motor.
45
PWM1
O PWM output for error signal of capstan motor.
46
DRM ON
I/O Control the drum motor rotation direction.
47
CAP ON
I/O Control the capstan motor rotation direction.
48
LDM REV.
O Control the loading motor rotation direction.
49
LDM FWD.
O Control the loading motor rotation direction.
50
CAP LIMIT
I/O 3 State C-MOS output.
F-2
