1-15-1
E9B00PIN
IC PIN FUNCTION DESCRIPTIONS
< VCR Section >
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
Model
Mark
DRV-A3635
A
DRV-C3835
B
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
1
IN
SC2-IN
Input Signal from Pin 8
of SCART2
2
IN
PG-DELAY
Video Head Switching
Pulse Signal Adjusted
Voltage
3
IN
DVD-POW-
SAFETY
Abnormal Voltage
Detection
4
IN
END-S
Tape End Position
Detect Signal
5
IN
AFC
Automatic Frequency
Control Signal
6
IN
V-ENV
Video Envelope
Comparator Signal
7
IN
KEY-1
Key Scan Input Signal 1
8
IN
KEY-2
Key Scan Input Signal 2
9
IN
LD-SW
Deck Mode Position
Detector Signal
10
IN
ST-S
Tape Start Position
Detector Signal
11
OUT
FAN-
CONT1
Fan Motor Control Signal
12
-
NU
Not Used
13
OUT D-V- SYNC Dummy V-sync Output
14
IN
REMOCON
-IN
Remote Control Sensor
15
OUT C-ROTA
Color Phase Rotary
Changeover SIgnal
16
OUT H-A-SW
Video Head Amp
Switching Pulse
17
IN
H-A-COMP
Head Amp Comparator
Signal
18
OUT RF-SW
Video Head Switching
Pulse
19
OUT Hi-Fi-H-SW
HiFi Audio Head
Switching Pulse
20
-
NU
Not Used
21
-
NU
Not Used
22
OUT
VIDEO-
SW1
Video Input Select
Signal
23
OUT
VIDEO-
SW2
Video Input Select
Signal
24
OUT
VIDEO-
SW3
Video Input Select
Signal
25
OUT
REG-
CONT2
Power Regulator Control
Signal
26
OUT
DVD-
AUDIO-
MUTE
DVD Audio Mute Control
Signal
27
OUT
RGB-
THROUGH
SCART 2 RGB Through
Control Signal
28
OUT
AUDIO-
MUTE-2
Audio Mute Control
Signal
29
OUT
DVD-
AUDIO-
MUTE2
DVD Audio Mute
Control Signal
30
OUT
DVD-
SCART-
AUDIO-
MUTE
DVD SCART Audio
Mute Control Signal
31
IN
REC-SAF-
SW
Recording Safety SW
Detect (With Record
tab=”L”/ With out Record
tab=”H”)
32
IN P-DOWN -H
Power Voltage Down
Detector Signal
33
OUT D-REC-H
Delayed Record Signal
34
IN
RESET
System Reset Signal
(Reset=”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
-
GND
Vss(GND)
41
OUT PWR-SW
DVD Power Supply
Control Signal
42
OUT
REGULATOR
-CONTROL
Power Regulator Control
Signal
43
IN
CLKSEL
Clock Select (GND)
44
IN
OSCin
Clock Input for letter size
45
OUT OSCout
Clock Output for letter
size
46
-
NUB
Not Used
47
IN
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
-
NU
Not Used
52
OUT
OSD-V-
OUT
OSD Video Signal
Output
53
-
OSDVcc
OSDVcc
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
www.freeservicemanuals.info
3/21/2018
Digitized in Heiloo Netherlands
