1-14-3
HE270PIN
IC PIN FUNCTION DESCRIPTIONS
[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
“H”
≥
4.5V, “L”
≤
1.0V
Model
Mark
VR140/02
N
VR140/07
O
VR140/39
P
VR140/58
Q
VR840/07
R
VR840/16
S
VR840/39
T
VR840/58
U
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
1
IN
SC2-IN
Input Signal
from
Pin 8 of
SCART2
A/D
2
IN
PG-
DELAY
Video Head
Switching Pulse
Signal Adjusted
Voltage
A/D
3
IN
POW-
SAF
P-ON Power
Detection Input
Signal
A/D
4
IN
END-S
Tape End
Position
Detect Signal
A/D
5
IN
AFC
Automatic
Frequency
Control Signal
A/D
6
IN
V-ENV
Video Envelope
Comparator
Signal
A/D
7
IN
KEY-1
Key Scan Input
Signal 1
A/D
8
IN
KEY-2
Key Scan Input
Signal 2
A/D
9
IN
LD-SW
Deck Mode
Position
Detector Signal
A/D
10
OUT ST-S
Tape Start
Position
Detector Signal
A/D
11
-
N.U.
Not Used
-
12
-
N.U.
Not Used
-
13
OUT
D-V-
SYNC
Dummy V-sync
Output
H/Hi-z
14
IN
REMOC
ON-IN
Remote
Control Sensor
L
15
OUT C-ROTA
Color Phase
Rotary
Changeover
SIgnal
H/L
16
N,O,
P,Q
-
N.U.
Not Used
-
R,S,
T,U
OUT H-A-SW
Video Head
Amp Switching
Pulse
H/L
17
N,O,
P,Q
-
N.U.
Not Used
-
R,S,
T,U
IN
H-A-
COMP
Head Amp
Comparator
Signal
H/L
18
OUT RF-SW
Video Head
Switching Pulse
H/L
19
N,O,
P,Q
-
N.U.
Not Used
-
R,S,
T,U
OUT
HiFi-H-
SW
HiFi Audio Head
Switching Pulse
H/L
20
N,O,
P,Q
-
N.U.
Not Used
-
R,S,
T,U
IN
DAVN-L
VPS/PDC Data
Receive = “L”
L
21
N,O,
P,R,
S,T,U
-
N.U.
Not Used
-
Q
OUT
TUN-
SW1
Tuner System
Control Signal
Output
H/L
22
-
N.U.
Not Used
-
23
-
N.U.
Not Used
-
24
-
N.U.
Not Used
-
25
-
N.U.
Not Used
-
26
-
N.U.
Not Used
-
27
OUT
RGB-
THROUG
H
SCART 2 RGB
Through Control
Signal
H/L
28
N,O,
P,Q
-
N.U.
Not Used
-
R,S,
T,U
OUT
LINE
MUTE
Audio Mute
Control
Signal
L
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
