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Panasonic NV-MV20GC Service Manual page 64

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No Terminal Name I/O
22 NC
O Low fix.
23 NC
I Low fix.
24 D.A.REC(H)
O Recording control signal for the Linear Audio.
25 PAL 9H (H)
O PAL 9H: High is output.
26 BIAS(H)
O
27 STAB(L)
I
28 FM_MUTE
O
29 SW1
O
30 POS.SW4
I
31 POS.SW3
I
32 POS.SW2
I
33 POS.SW1
I
34 RESET
I RESET Terminal.
35 32KHz.IN
I Sub clock (32.768KHz) osc. input terminal.
36 32KHz.OUT
O Sub clock (32.768KHz) osc. output terminal
37 5V(D)
- VCC (5V) for Digital port
38 12MHz.IN
I Main clock (12MHz) osc. input terminal.
39 12MHz.OUT
O Main clock (12MHz) osc. output terminal.
40 GND(OSC)
- Digital GND for OSC circuit.
41 PAL PB (L)
O
Linear Audio REC/ERASE ON/OFF control terminal. (FULL ERASE ON/OFF control
is combined with)
*When recording the linear audio, the "Low" is output synchronizing with D.REC
signal for IC3001.
Output mode: REC(ADUB/AV-INSERT)
*When the recording starts, "High" is output at 130-150m sec. after D.REC (H) for
IC3001has been shifted to "High" from "Low".
*When the recording stops, the "Low" is output.
*Other than above: "Low" Level.
SAFETY TAB DETECTION
*With SAFETY TAB: "Low"
*Without SAFETY TAB:"High"
Audio mute control terminal.
High output (AUDIO MUTE).
The voltage is shifted to Hi-Z for reucing the current at 3 second after the power has
been turned on .
AUDIO SYSTEM (TUNER PRESET)=BG, I: High output
AUDIO SYSTEM (TUNER PRESET)=DK, M: Low output
For A: High fix.
Input terminal for mechanism position.
SW4 SW3 SW2 SW1 Position Name
1
1
1
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
1
0
1
1
1
1
1
1
3.58NTSC (D6=0, D7=0 both of IC3001): High output
Other than above
Description
0
EJECT Position
0
DOWN Position
1
R-REW Position
0
LOAD Position
1
REV Position
0
PLAY Position
1
P_OFF Position
0
STOP_R Position
1
STOP_F Position
0
FF/REW Position
0
FF2 Position
Intermediate Positions
1
between each
Positions
: Low output
Reset/
P.OFF
P.Failure
Release
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
In
In
Hi-Z
In
Low
Low
In
In
In
In
In
In
In
In
In
In
In
In
Out
Out
-
-
In
In
Out
Out
-
-
Low
Low
Low
Low
Low
Low
Low
In
In
Low
In
In
In
In
In
In
Out
-
In
Out
-
Low

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