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7-2 IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
Pin
IN/
Signal
No.
OUT
Name
1
IN P-DOWN-H
IN REC-SAF-
2
SW
3
IN T-REEL
4
-
N.U.
IN REMOTE-
5
VIDEO
DISPLAY-
6
OUT
CLK
AUDIO-
7
OUT
MUTE-H
DISPLAY-
8
OUT
DATA
DISPLAY-
9
OUT
ENA
10
-
N.U.
11
-
N.U.
IN/
IIC-BUS
12
OUT
SDA
IIC-BUS
13 OUT
SCL
14 OUT YCA-SCL
15 OUT YCA-SDA
16 OUT YCA-CS
17
-
N.U.
18 OUT RF-SW
19 OUT D-V SYNC
20
IN RESET
"H" ≥ 4.5V, "L" ≤ 1.0V
Active
Function
Level
Power Voltage
Down Detector
Signal
Recording Safety
SW Detect (With
Record tab = "L"/
H/L
With out Record tab
= "H")
Take Up Reel
PULSE
Rotation Signal
Not Used
Remote Control
Sensor
7seg. Driver IC
Clock Control
H/L
Output Signal
Audio Mute Control
Signal (Mute = "H")
7seg. Driver IC
Data Control Output
H/L
Signal
7seg. Driver IC
Enable Control
Output Signal
Not Used
Not Used
IIC BUS Control
H/L
Data
IIC BUS Control
H/L
Clock
YCA IC Control
H/L
Clock
YCA IC Control
H/L
Data
YCA IC Control
H/L
Chip Select
Not Used
Video Head
H/L
Switching Pulse
Dummy V-sync
H/Hi-z
Output
System Reset
Signal (Reset="L")
Pin
IN/
No.
OUT
21 OUT LM-FWD/
REV
22 OUT P-ON-L
23
-
N.U.
H
24 OUT D-REC-H
25 OUT HiFi-H-SW
DVD-
26 OUT
POWER
27 OUT C-F/R
-
28 OUT C-CONT
L
29 OUT D-CONT
30
-
N.U.
31
-
VDD
H
32 OUT OSCO
33
IN OSCI
L
-
34
VSS
35
IN XI
-
-
36 OUT XO
37
IN SXI
38 OUT VIDEO-
OUT
39
-
Vss2
40
IN VIDEO-IN
41
IN C-SYNC
-
42
-
VDD2
43
IN AFCC
L
44 OUT AFCLPF
7-7
Signal
Function
Name
Loading Motor
FWD/ REV Output
Power On Signal to
Low
Not Used
Delayed Record
Signal
HiFi Audio Head
Switching Pulse
DVD Power Control
Signal
Capstan Motor
FWD/REV Control
Signal (FWD="L"/
REV="H")
Capstan Motor
Control Signal
Drum Motor Control
Signal
Not Used
VDD
Main Clock Output
14.31818MHz
Main Clock Input
14.31818MHz
VSS
Sub Clock Input
32.768 MHz
Sub Clock Output
32.768 MHz
Operation Mode
Selecting Input
Signal
Composite Video
Signal Output
Vss2
Composite Video
Signal Input
Composite
Synchronized Pulse
VDD2
Low Path Filter
Input Signal For
AFC
Low Path Filter
Output Signal For
AFC
Active
Level
H/Z/L
L
-
H
H/L
H
H/L
PWM
PWM
-
-
-
-
-
-
-
-
-
-
PULSE
-
-
-
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