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IC501( SERVO / SYSTEM CONTROL IC )
Pin
IN/
Signal
No.
OUT
Name
1
-
NU
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
IN ST-S
11
-
NU
12
-
NU
13 OUT D-V- SYNC
14
IN REMOCON
15 OUT C-ROTA
16 OUT H-A-SW
17
IN H-A-COMP
18 OUT RF-SW
19 OUT Hi-Fi-H-SW
20
-
NU
21
-
NU
22
-
NU
23 OUT POWER- LED
IC PIN FUNCTION DESCRIPTIONS
≥
≤
"H"
4.5V, "L"
Active
Function
Level
Not Used
Video Head
Switching Pulse
A/D
Signal Adjusted
Voltage
P-ON Power
A/D
Detection Input
Signal
Tape End Position
A/D
Detect Signal
Automatic
A/D
Frequency Control
Signal
Video Envelope
A/D
Comparator Signal
Key Scan Input
A/D
Signal 1
Key Scan Input
A/D
Signal 2
Deck Mode
A/D
Position Detector
Signal
Tape Start Position
A/D
Detector Signal
Not Used
Not Used
Dummy V-sync
Output
Hi-z
Remote Control
Sensor
Color Phase Rotary
H/L
Changeover SIgnal
Video Head Amp
H/L
Switching Pulse
Head Amp
H/L
Comparator Signal
Video Head
H/L
Switching Pulse
HiFi Audio Head
H/L
Switching Pulse
Not Used
Not Used
Not Used
"POWER" LED
H/L
Signal Output
Pin
IN/
No.
OUT
24 OUT POWER-LED
1.0V
25
-
NU
26
-
NU
-
27 OUT TIMER-LED
28 OUT TIMER-LED
29 OUT REC-LED
30 OUT REC-LED
31
IN REC-SAF-SW
32
IN A-MODE
33 OUT D-REC-H
34
IN RESET
35
IN Xcin
36 OUT Xcout
37
-
Vcc
38
IN Xin
-
39 OUT Xout
-
40
-
GND
H/
INPUT-
41 OUT
SELECT
L
42 OUT DVD-POWER
43
IN CLKSEL
44
IN OSCin
45 OUT OSCout
46
-
NUB
47
IN P61/LP
IN FSC-IN
48
[4.43MHz]
49
-
-
OSDVss
-
50
IN OSD-V-IN
-
51
-
NU
52 OUT OSD-V-OUT
1-15-1
Signal
Function
Name
"POWER" LED
Signal Output
Not Used
Not Used
"TIMER" LED
Signal Output
"TIMER" LED
Signal Output
Recording LED
Control Signal
Recording LED
Control Signal
Recording Safety
SW Detect (With
Record tab="L"/
With out Record
tab="H")
Hi-Fi Tape
Detection Signal
Delayed Record
Signal
System Reset
Signal (Reset="L")
Sub Clock
Sub Clock
Vcc
Main Clock Input
Main Clock Input
Vss(GND)
Input Selector
Control Signal
DVD Power
Control Signal
Clock Select (GND)
Clock Input for
letter size
Clock Output for
letter size
Not Used
P61/LP
4.43MHz Clock
Input
OSDVss
OSD Video Signal
Input
Not Used
OSD Video Signal
Output
Active
Level
H/L
-
-
H
H
H/L
L
H
L
-
-
-
-
-
-
H/L
H
L
-
-
-
-
-
-
-
-
-
H9745PIN
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