Hitachi DV-PF7E - IC Pin Function Descriptions

7-7
7-2 IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
“H” ≥ 4.5V, “L” ≤ 1.0V
Pin
No.
IN/
OUT
Signal
Name
Function
Active
Level
1IN
SC2-IN
Input Signal from Pin
8 of SCART2
A/D
2IN
PG-Delay
Video Head
Switching Pulse
Signal Adjusted
Voltage
A/D
3IN
POW-SAF
P-ON Power
Detection Input
Signal
A/D
4IN
END-S
Tape End Position
Detect Signal
A/D
5IN
AFC
Automatic Frequency
Control Signal
A/D
6IN
V-ENV
Video Envelope
Comparator Signal
A/D
7IN
KEY-1
Key Scan Input Signal
1
A/D
8IN
KEY-2
Key Scan Input Signal
2
A/D
9IN
LD-SW
Deck Mode Position
Detector Signal
A/D
10 IN
ST-S
Tape Start Position
Detector Signal
A/D
11 -
NU Not Used
-
12 -
NU Not Used
-
13 OUT
D-V- SYNC
Dummy V-sync
Output
H/Hi-z
14 IN
REMOTE-
VIDEO
Remote Control
Sensor
L
15 OUT
C-ROTA
Color Phase Rotary
Changeover SIgnal
H/L
16 OUT
H-A-SW
Video Head Amp
Switching Pulse
H/L
17 IN
H-A-COMP
Head Amp
Comparator Signal
H/L
18 OUT
RF-SW
Video Head
Switching Pulse
H/L
19 OUT
Hi-Fi-H-SW
HiFi Audio Head
Switching Pulse
H/L
20 -
NU Not Used
-
21 OUT
DVD-
POWER
DVD Power Control
Signal
H
22 -
NU Not Used
-
23 -
NU Not Used
-
24 -
NU Not Used
-
25 OUT
TIMER-
LED
“TIMER” LED Signal
Output
H/L
26 OUT REC- LED
“REC” LED Signal
Output
H/L
27 -
NU Not Used
-
28 OUT
LINE-
MUTE
Audio Mute Control
Signal
H
29 OUT DVD-LED
“DVD” LED Signal
Output
H/L
30 OUT VCR-LED
“VCR” LED Signal
Output
H/L
31 IN
REC-SAF-
SW
Recording Safety SW
Detect (With Record
tab=”L”/ With out
Record tab=”H”)
H/L
32 IN
A-MODE
Hi-Fi Tape Detection
Signal
L
33 OUT
D-REC-H
Delayed Record
Signal
H
34 IN
RESET
System Reset Signal
(Reset=”L”)
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 -
NU Not Used
-
42 IN
DVD-8PIN-
IN
SCART 8Pin DVD
Input Control Signal
H/L
43 IN
CLKSEL Clock Select (GND)
L
44 IN
OSCin
Clock Input for letter
size
-
45 OUT
OSCout
Clock Output for letter
size
-
46 -
NU 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
-
54 -
HLF
LPF Connected
Terminal (Slicer)
-
55 -
NU Not Used
-
Pin
No.
IN/
OUT
Signal
Name
Function
Active
Level