Hitachi DV-PF7E Wartungshandbuch Seite 80

7-2 IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
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
IN REMOTE-
14
VIDEO
15 OUT C-ROTA
16 OUT H-A-SW
IN H-A-COMP Head Amp
17
18 OUT RF-SW
19 OUT Hi-Fi-H-SW HiFi Audio Head
20 -
NU
21 OUT DVD-
POWER
22 -
NU
23 - NU
24 - NU
"H" ≥ 4.5V, "L" ≤ 1.0V
Function
Input Signal from Pin
8 of SCART2
Video Head
Switching Pulse
Signal Adjusted
Voltage
P-ON Power
Detection Input
Signal
Tape End Position
Detect Signal
Automatic Frequency
Control Signal
Video Envelope
Comparator Signal
Key Scan Input Signal
1
Key Scan Input Signal
2
Deck Mode Position
Detector Signal
Tape Start Position
Detector Signal
Not Used
Not Used
H/Hi-z
Output
Remote Control
Sensor
Color Phase Rotary
Changeover SIgnal
Video Head Amp
Switching Pulse
Comparator Signal
Video Head
Switching Pulse
Switching Pulse
Not Used
DVD Power Control
Signal
Not Used
Not Used
Not Used
Pin IN/
No. OUT
25 OUT TIMER-
LED
26 OUT REC- LED "REC" LED Signal
Active
27 - NU
Level
28 OUT LINE-
A/D MUTE
29 OUT DVD-LED
A/D
30 OUT VCR-LED
REC-SAF-
A/D 31 IN
SW
A/D
32 IN A-MODE
A/D
33 OUT D-REC-H
A/D
34 IN RESET
35 IN XCin
A/D
36 OUT XCOUT
A/D
37 -
Vcc
38 IN Xin
A/D
39 OUT Xout
A/D
40 - GND
41 -
NU
-
IN DVD-8PIN-
-
42
IN
43 IN CLKSEL
44 IN OSCin
L
45 OUT OSCout
H/L
46 - NU
H/L
47 IN LP
IN FSC-IN
H/L
48
[4.43MHz]
49 -
OSDVss
H/L
50 IN OSD-V-IN
H/L
51 - NU
-
52 OUT OSD-V-
OUT
H
53 - OSDVcc
-
54 -
HLF
-
-
55 -
NU
7-7
Signal
Function
Name
"TIMER" LED Signal
Output
Output
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)
Not Used
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
Not Used
OSD Video Signal
Output
OSDVcc
LPF Connected
Terminal (Slicer)
Not Used
Active
Level
H/L
H/L
-
H
H/L
H/L
H/L
L
H
L
-
-
-
-
-
-
-
H/L
L
-
-
-
-
-
-
-
-
-
-
-
-