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IC501( SERVO / SYSTEM CONTROL IC )
Pin
IN/
Signal
No.
OUT
Name
1
IN
SC2-IN
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 Dummy V-sync
REMOTE-
14
IN
VIDEO
15 OUT C-ROTA
16 OUT H-A-SW
17
IN
H-A-COMP
18 OUT RF-SW
19 OUT Hi-Fi-H-SW HiFi Audio Head
20 OUT FRONT-AV Front AV Output
21 OUT DVD-
POWER
IC PIN FUNCTION DESCRIPTIONS
≥
≤
"H"
4.5V, "L"
Active
Function
Level
Input Signal from
A/D
Pin 8 of SCART2
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
H/Hi-z
Output
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
H/L
Switching Pulse
Z/L
Signal
DVD Power Control
Signal
Pin
IN/
No.
OUT
22
-
NU
1.0V
23 OUT POWER-
LED
24
-
NU
25
-
NU
26
-
NU
27
-
NU
28 OUT LINE-
MUTE
29 OUT DVD-LED
30 OUT VCR-LED
REC-SAF-
31
IN
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
INPUT
41 OUT
SELECT
L
DVD-8PIN-
42
IN
IN
43
IN
CLKSEL
44
IN
OSCin
45 OUT OSCout
46
-
NUB
47
IN
LP
FSC-IN
48
IN
[4.43MHz]
49
-
OSDVss
H
50
IN
OSD-V-IN
1-15-1
Signal
Function
Name
Not Used
"POWER" LED
Signal Output
Not Used
Not Used
Not Used
Not Used
Audio Mute Control
Signal
"DVD" LED Signal
Output
"VCR" LED Signal
Output
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
SCART 8Pin DVD
Input Control
Signal
Clock Select (GND)
Clock Input for
letter size
Clock Output for
letter size
Not Used
LP
4.43MHz Clock
Input
OSDVss
OSD Video Signal
Input
Active
Level
-
H/L
-
-
-
-
H
H/L
H/L
H/L
L
H
L
-
-
-
-
-
-
H/L
H/L
L
-
-
-
-
-
-
-
H9740PIN
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