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Pin No.
Pin Name
72
OSC 1
73
OSC 2
74
MODE SW4
75
MODE SW3
76
MODE SW2
77
MODE SW1
78
I-LIMIT
79
REC START "H"
80
CAP ACCEL "H"
81
DRUM ADJ
I/O
I
1. 10MHz oscillator is used to generate the standard clock used to operate the u-COM.
2. When Vcc is applied, Oscillation occurs. (But, when "L" is applied to pin 89 in
O
power failure, Oscillation stops.)
1. Port to detect the mechanism's position.
2. Deck and Mode SW Positions.
MODE
No.
SW4
1
L
2
L
3
L
4
L
5
H
6
H
7
H
8
H
9
H
10
H
I
* Description of Deck Positions
RETURN
EJECT
ULC
LOADING START
LOADING END
NONE
REV
PLAY
BRAKE
FF, REW
1. Input signal for stopping capstan motor.
I
2. When this port inputs "L", the capstan motor stops.
1. When REC mode is operaing normally, outputs "H".
O
2. Switched to REC mode by operating audio, Y/C pre-amp.
3. Outputs "H" and record audio, video signals on the tape.
O
Pulse output to control capstan motor in slow mode.
O
Pulse output to control drum motor in slow mode.
35
Description
MODE
MODE MODE
SW3
SW2
SW1
H
L
H
L
L
H
L
H
L
H
H
L
H
L
L
L
L
L
L
H
H
L
H
H
L
L
H
H
L
H
Cassette insertion standby mode
For cassette insertion and ejection
Mode in which base assemblies P2 and P3 are completely
unloaded status (unloading complete)
Mode in which base assemblies P2 and P3 can load tape
after cassette loading is completed.
Mode in which base assemblies P2 and P3 have completely
loaded tape. Also used for "power off mode".
None
"REV" or "-SLOW" mode
"Playback/Still/Slow/Stop" mode.
Mode that drives the brake (take-up, supply) to stop tape
during "fast forward" or "rewind".
FF, REW / "Fast forward" or "Rewind" mode
DECK POSITION
NAME
RETURN
EJECT
ULC
LOADING START
LOADING END
TUNE
REV
PLAY
STOP
FF, REW
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