FUNAI 31A-250 - IC Pin Function Descriptions

1-13-1 HM240PIN
IC PIN FUNCTION DESCRIPTIONS
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
“H” ≥ 4.5V, “L” ≤ 1.0V
Model Mark
31A-250 A
31C-250 B
31D-250 C
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
1INSC2-IN
Input Signal
from Pin 8 of
SCART2
A/D
2IN
PG-
DELAY
Video Head
Switching Pulse
Signal Adjusted
Voltage
A/D
3INPOW-SAF
P-ON Power
Detection Input
Signal
A/D
4 IN END-S
Tape End
Position Detect
Signal
A/D
5INAFC
Automatic
Frequency
Control Signal
A/D
6INV-ENV
Video Envelope
Comparator
Signal
A/D
7INKEY-1
Key Scan Input
Signal 1
A/D
8INKEY-2
Key Scan Input
Signal 2
A/D
9INLD-SW
Deck Mode
Position
Detector Signal
A/D
10 IN ST-S
Tape Start
Position
Detector Signal
A/D
11 - NU Not Used -
12 - NU Not Used -
13 OUT
D-V-
SYNC
Dummy V-sync
Output
H/Hi-z
14 IN
REMOCON
-IN
Remote Control
Sensor
L
15 OUT C-ROTA
Color Phase
Rotary
Changeover
SIgnal
H/L
16 - NU Not Used -
17 - NU Not Used -
18 OUT RF-SW
Video Head
Switching Pulse
H/L
19 - NU Not Used -
20 - NU Not Used -
21 - NU Not Used -
22
A,B - NU Not Used -
COUTTUN-SW2
Tuner System
Control Signal
Output
H/L
23 OUT
POWER-
LED
“STANDBY”
LED Signal
Output
H
24
OUT CAS-LED
“TAPE IN” LED
Signal Output
H
25
OUT
TIMER-
LED
“TIMER” LED
Signal Output
H
26
OUT REC-LED
“REC” LED
Signal Output
H
27 - NU Not Used -
28 - NU Not Used -
29 OUT
AUDIO-
SW-1
Audio IN/OUT
Control Signal
H/L
30 OUT
AUDIO-
SW-2
Audio IN/OUT
Control Signal
H/L
31 IN
REC-
SAF-SW
Recording
Safety SW
Detect (With
Record tab="L"/
With out Record
tab="H")
H
32 IN A-MODE
Hi-Fi Tape
Detection
Signal
L
33 OUT D-REC-H
Delayed Record
Signal
H
34 IN RESET
System Reset
Signal
(Reset=”L”)
L
35 IN Xcin Sub Clock -
36 OUT Xcout Sub Clock -
37 - Vcc Vcc -
38 IN Xin
Main Clock
Input
-
39 OUT Xout
Main Clock
Input
-
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level