Read Sharp DV-NC100H (serv.man4) Service Manual online
1-15-1
H9741PIN
IC PIN FUNCTION DESCRIPTIONS
Pin
No.
No.
IN/
OUT
Signal
Name
Function
Active
Level
1
IN
SC2-IN
Input Signal from
Pin 8 of SCART2
Pin 8 of SCART2
A/D
2
IN
PG-DELAY
Video Head
Switching Pulse
Signal Adjusted
Voltage
Switching Pulse
Signal Adjusted
Voltage
A/D
3
IN
POW-SAF
P-ON Power
Detection Input
Signal
Detection Input
Signal
A/D
4
IN
END-S
Tape End Position
Detect Signal
Detect Signal
A/D
5
IN
AFC
Automatic
Frequency Control
Signal
Frequency Control
Signal
A/D
6
IN
V-ENV
Video Envelope
Comparator Signal
Comparator Signal
A/D
7
IN
KEY-1
Key Scan Input
Signal 1
Signal 1
A/D
8
IN
KEY-2
Key Scan Input
Signal 2
Signal 2
A/D
9
IN
LD-SW
Deck Mode
Position Detector
Signal
Position Detector
Signal
A/D
10
IN
ST-S
Tape Start Position
Detector Signal
Detector Signal
A/D
11
-
NU
Not Used
-
12
-
NU
Not Used
-
13
OUT D-V- SYNC
Dummy V-sync
Output
Output
H/Hi-z
14
IN
REMOTE-
VIDEO
VIDEO
Remote Control
Sensor
Sensor
L
15
OUT C-ROTA
Color Phase Rotary
Changeover SIgnal
Changeover SIgnal
H/L
16
OUT H-A-SW
Video Head Amp
Switching Pulse
Switching Pulse
H/L
17
IN
H-A-COMP
Head Amp
Comparator Signal
Comparator Signal
H/L
18
OUT RF-SW
Video Head
Switching Pulse
Switching Pulse
H/L
19
OUT Hi-Fi-H-SW
HiFi Audio Head
Switching Pulse
Switching Pulse
H/L
20
21
OUT
DVD-
POWER
POWER
DVD Power Control
Signal
Signal
H
23
OUT
POWER-
LED
LED
"POWER" LED
Signal Output
Signal Output
H/L
24
-
NU
Not Used
-
27
-
NU
Not Used
-
28
OUT
LINE-
MUTE
MUTE
Audio Mute Control
Signal
Signal
H
29
OUT DVD-LED
"DVD" LED Signal
Output
Output
H/L
30
OUT VCR-LED
"VCR" LED Signal
Output
Output
H/L
31
IN
REC-SAF-
SW
SW
Recording Safety
SW Detect (With
Record tab="L"/
With out Record
tab="H")
SW Detect (With
Record tab="L"/
With out Record
tab="H")
H/L
32
IN
A-MODE
Hi-Fi Tape
Detection Signal
Detection Signal
L
33
OUT D-REC-H
Delayed Record
Signal
Signal
H
34
IN
RESET
System Reset
Signal (Reset="L")
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
OUT
INPUT-
SELECT
SELECT
Input Selector
Control Signal
Control Signal
H/L
42
IN
DVD-8PIN-
IN
IN
SCART 8Pin DVD
Input Control
Signal
Input Control
Signal
H/L
43
IN
CLKSEL
Clock Select (GND)
L
44
IN
OSCin
Clock Input for
letter size
letter size
-
45
OUT OSCout
Clock Output for
letter size
letter size
-
46
-
NUB
Not Used
-
47
IN
LP
LP
-
48
IN
FSC-IN
[4.43MHz]
[4.43MHz]
4.43MHz Clock
Input
Input
-
49
-
OSDVss
OSDVss
-
50
IN
OSD-V-IN
OSD Video Signal
Input
Input
-
Pin
No.
No.
IN/
OUT
Signal
Name
Function
Active
Level
-
NU
Not Used
-
25
OUT TIMER-
LED
"TIMER" LED
Signal Output
Signal Output
H/L
26
OUT REC- LED
"REC" LED Signal
Output
Output
H/L
22
-
NU
Not Used
-
[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
"H"
≥
4.5V, "L"
≤
1.0V
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