FUNAI 29B-250 - IC Pin Function Descriptions

1-11-1 HG242PIN
IC PIN FUNCTION DESCRIPTIONS
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
“H” ≥ 4.5V, “L” ≤ 1.0V
Model Mark
29B-250 A
29B-750 B
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
1IN
SC2-IN
Input Signal
from Pin 8 of
SCART2
A/D
2IN
PG-
DELAY
Video Head
Switching Pulse
Signal Adjusted
Voltage
A/D
3IN
POW-SAF
P-ON Power
Detection Input
Signal
A/D
4IN
END-S
Tape End
Position Detect
Signal
A/D
5IN
AFC
Automatic
Frequency
Control Signal
A/D
6IN
V-ENV
Video Envelope
Comparator
Signal
A/D
7IN
KEY-1
Key Scan Input
Signal 1
A/D
8IN
KEY-2
Key Scan Input
Signal 2
A/D
9IN
LD-SW
Deck Mode
Position
Detector Signal
A/D
10 IN
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
REMOCON
-IN
Remote Control
Sensor
L
15 OUT
C-ROTA
Color Phase
Rotary
Changeover
SIgnal
H/L
16
A-
N.U. Not Used
-
BOUT
H-A-SW
Video Head
Amp Switching
Pulse
H/L
17
A-
N.U. Not Used
-
BIN
H-A-
COMP
Head Amp
Comparator
Signal
H/L
18 OUT
RF-SW
Video Head
Switching Pulse
H/L
19
A-
N.U. Not Used
-
BOUT
Hi-Fi-H-
SW
Hi-Fi Audio
Head Switching
Pulse
H/L
20 -
N.U. Not Used
-
21 -
N.U. Not Used
-
22 -
N.U. Not Used
-
23
AOUT
POWER-
LED
“POWER” LED
Signal Output
H
B-
N.U. Not Used
-
24
A
OUT CAS-LED
“CASSETTE”
LED Signal
Output
H
B-
N.U. Not Used
-
25
A
OUT
TIMER-
LED
“TIMER” LED
Signal Output
H
B-
N.U. Not Used
-
26
A
OUT REC-LED
Recording LED
Control Signal
H
B-
N.U. Not Used
-
27 -
N.U. Not Used
-
28
A-
N.U. Not Used
-
BOUT
LINE-
MUTE
Audio Mute
Control Signal
H
29
AOUT
AUDIO-
SW-1
Audio IN/OUT
Control Signal
H/L
B-
N.U. Not Used
-
30
AOUT
AUDIO-
SW-2
Audio IN/OUT
Control Signal
H/L
B-
N.U. Not Used
-
31 IN
REC-
SAF-SW
Recording
Safety SW
Detect (With
Record tab="L"/
With out Record
tab="H")
H
32
A-
N.U. Not Used
-
BIN
A-MODE
Hi-Fi Tape
Detection
Signal
L
33 OUT
D-REC-H
Delayed Record
Signal
H
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level