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8 IC PIN FUNCTION DESCRIPTIONS
Comparison Chart of Models and Marks
Model
VT-FX340E(UK)
VT-MX310E(UK)
IC501( SERVO / SYSTEM CONTROL IC )
Pin
IN/
Signal
Mark
No.
OUT
Name
1
IN
SC2-IN
2
IN
PG-DELAY
3
IN
POW-SAF
4
IN
END-S
5
IN
AFC
6
IN
V-ENV
7
IN
KEY-1
8
IN
KEY-2
9
IN
LD-SW
10
OUT ST-S
11
-
NU
12
-
NU
13
OUT D-V- SYNC
REMOCON-
14
IN
IN
15
OUT C-ROTA
30
Mark
A
B
"H" ≥ 4.5V, "L" ≤ 1.0V
Active
Function
Level
Input Signal
from
A/D
Pin 8 of
SCART2
Video Head
Switching Pulse
A/D
Signal Adjusted
Voltage
P-ON Power
Detection Input
A/D
Signal
Tape End
Position
A/D
Detect Signal
Automatic
Frequency
A/D
Control Signal
Video Envelope
Comparator
A/D
Signal
Key Scan Input
A/D
Signal 1
Key Scan Input
A/D
Signal 2
Deck Mode
Position
A/D
Detector Signal
Tape Start
A/D
Position
Detector Signal
Not Used
-
Not Used
-
H/
Dummy V-sync
Output
Hi-z
Remote
L
Control Sensor
Color Phase
Rotary
H/L
Changeover
SIgnal
Pin
IN/
Signal
Mark
No.
OUT
Name
B
-
NU
16
A
OUT H-A-SW
B
-
NU
17
A
IN
H-A-COMP
18
OUT RF-SW
B
-
NU
19
A
OUT HiFi-H-SW
20
IN
DAVN-L
21
-
NU
22
-
NU
23
-
NU
24
-
NU
25
-
NU
26
-
NU
27
-
NU
B
-
NU
28
A
OUT LINE MUTE
OUT AUDIO-SW-
B
1
29
A
-
NU
OUT AUDIO-SW-
B
2
30
A
-
NU
REC-SAF-
31
IN
SW
B
-
NU
32
A
IN
A-MODE
33
OUT D-REC-H
34
IN
RESET
35
IN
Xcin
Active
Function
Level
Not Used
-
Video Head
Amp Switching
H/L
Pulse
-
Not Used
Head Amp
Comparator
H/L
Signal
Video Head
H/L
Switching Pulse
-
Not Used
HiFi Audio Head
H/L
Switching Pulse
VPS/PDC Data
L
Receive = "L"
Not Used
-
-
Not Used
-
Not Used
-
Not Used
Not Used
-
Not Used
-
Not Used
-
Not Used
-
Audio Mute
L
Control
Signal
Audio IN/OUT
H/L
Control Signal
-
Not Used
Audio IN/OUT
H/L
Control Signal
-
Not Used
Recording
Safety SW
Detect (With
H
Record tab="L"/
With out Record
tab="H")
-
Not Used
Hi-Fi Tape
L
Detection Signal
Delayed Record
L
Signal
System Reset
Signal
L
(Reset="L")
-
Sub Clock
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