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IC PIN FUNCTION DESCRIPTIONS
< VCR Section >
IC4501 (MICROCONTROLLER)
"H" ≥ 4.5 V, "L" ≤ 1.0 V
Pin
IN/
Signal
No.
OUT
Name
1
IN
S-CS
REC-SAF-
2
IN
SW
3
IN
T-REEL
4
-
NU
REMOTE-
5
IN
VIDEO
S-CLOCK Communication of Clock
6
IN
S-DATA-IN Communication of Data to
7
IN
S-DATA-
8
OUT
OUT
DISPLAY-
9
OUT
ENA
DISPLAY-
10
OUT
DATA
DISPLAY-
11
OUT
CLK
IN/
IIC-BUS
12
OUT
SDA
IIC-BUS
13
OUT
SCL
14
OUT YCA-SCL YCA IC Control Clock
15
OUT YCA-SDA YCA IC Control Data
16
OUT YCA-CS
17
-
NU
18
OUT RF-SW
19
OUT D-V SYNC Dummy V-sync Output
20
IN
RESET
LM-FWD/
21
OUT
REV
22
OUT P-ON-L
23
-
NU
Function
Sub Micro Controller
Interface Chip Select Signal
Input
Recording Safety SW
Detect (With Record tab =
"L"/ With out Record tab =
"H")
Take Up Reel Rotation
Signal
Not Used
Remote Control Sensor
with Micro Controller
Micro Controller
Communication of Data
from Micro Controller
FL Display Driver IC
Enable Control Output
Signal
FL Display Driver IC Data
Control Output Signal
FL Display Driver IC Clock
Control Output Signal
IIC BUS Control Data
IIC BUS Control Clock
YCA IC Control Chip Select
Not Used
Video Head Switching
Pulse
System Reset Signal
(Reset="L")
Loading Motor FWD/ REV
Output
Power On Signal to Low
Not Used
Pin
IN/
Signal
No.
OUT
Name
24
OUT D-REC-H
Hi-Fi-H-
25
OUT
SW
AUDIO-
26
OUT
MUTE-H
27
OUT C-F/R
28
OUT C-CONT
29
OUT D-CONT
30
-
NU
31
-
VDD
32
OUT OSCO
33
IN
OSCI
34
-
VSS
35
-
NU
36
-
NU
37
IN
SXI
VIDEO-
38
OUT
OUT
39
-
VSS2
40
IN
VIDEO-IN
41
IN
C-SYNC
42
-
VDD2
43
IN
AFCC
44
OUT AFCLPF
45
-
NU
46
-
NU
47
IN
D-PFG
48
-
NU
49
IN
C-FG
50
-
AFG
51
OUT VRO
1-17-1
Function
Delayed Record Signal
Hi-Fi Audio Head
Switching Pulse
Audio Mute Control Signal
Capstan Motor FWD/REV
Control Signal (FWD="L"/
REV="H")
Capstan Motor Control
Signal
Drum Motor Control Signal
Not Used
VDD (AL+5V)
Main Clock Output
14.31818MHz
Main Clock Input
14.31818MHz
VSS (GND)
Not Used
Not Used
Operation Mode Selecting
Input Signal
Composite Video Output
Signal
Vss2
Composite Video Input
Signal
Composite Synchronized
Pulse
VDD2 (AL+5V)
Low Path Filter Input
Signal For AFC
Low Path Filter Output
Signal For AFC
Not Used
Not Used
Drum PG/FG Input Signal
Not Used
Capstan Motor Rotation
Detection Pulse
GND
Servo Standard Voltage
Output
E4340PIN
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