1-11-1
HG456PIN
IC PIN FUNCTION DESCRIPTIONS
IC501( SERVO / SYSTEM CONTROL IC )
“H”
≥
4.5V, “L”
≤
1.0V
Pin
No.
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
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
REMOCO
N-IN
Remote Control
Sensor
L
15 OUT C-ROTA
Color Phase Rotary
Changeover SIgnal
H/L
16 OUT H-A-SW
Video Head Amp
Switching Pulse
H/L
17
IN
H-A-
COMP
Head Amp
Comparator Signal
H/L
18 OUT RF-SW
Video Head Switching
Pulse
H/L
19 OUT
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
-
N.U.
Not Used
-
24
-
N.U.
Not Used
-
25
-
N.U.
Not Used
-
26
-
N.U.
Not Used
-
27
-
N.U.
Not Used
-
28 OUT
LINE-
MUTE
Audio Mute Control
Signal
H
29
-
N.U.
Not Used
-
30
-
N.U.
Not Used
-
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
-
40
-
Vss
Vss(GND)
-
41
-
N.U.
Not Used
-
42
-
N.U.
Not Used
-
43
IN
CLKSEL
Clock Select (GND)
-
44
IN
OSCin
Clock Input for letter
size
-
45 OUT OSCout
Clock Output for letter
size
-
46
-
N.U.
Not Used
-
47
-
LP
LP
-
48
IN
FSC-IN
[4.43MHz]
4.43MHz Clock Input
-
49
-
OSDVss
OSDVss
-
50
IN
OSD-V-IN
OSD Video Signal
Input
-
51
-
N.U.
Not Used
-
52 OUT
OSD-V-
OUT
OSD Video Signal
Output
-
53
-
OSDVcc
OSDVcc
-
Pin
No.
IN/
OUT
Signal
Name
Function
Active
Level
Summary of Contents for 29C-854
Page 23: ...1 8 3 1 8 4 HG456SCM1 Main 1 8 Schematic Diagram...
Page 24: ...Main 2 8 Sensor Schematic Diagrams 1 8 5 1 8 6 HG456SCM2 D1 D2 D3 D4 a b c d e g f...
Page 25: ...Main 3 8 Schematic Diagram 1 8 7 1 8 8 HG456SCM3...
Page 26: ...Main 4 7 Jack Sub Jack Schematic Diagrams 1 8 9 1 8 10 HG456SCM4...
Page 28: ...1 8 13 1 8 14 HG456SCM6 Main 6 8 Schematic Diagram...
Page 29: ...HG456SCM7 Main 7 8 Schematic Diagram 1 8 15 1 8 16...
Page 30: ...HG456SCM8 Main 8 8 Schematic Diagram 1 8 17 1 8 18...
Page 31: ...1 8 19 1 8 20 HG456SCAFV AFV Schematic Diagram...
Page 34: ...1 8 25 1 8 26 Jack CBA Top View Jack CBA Bottom View BHG470F01014C...
Page 41: ...1 13 1 HG250FEX EXPLODED VIEWS Front Panel A1X...
Page 77: ...29C 854 HG456FD 2004 11 25...
