Ic Pin Function Descriptions - FUNAI W4A-A4180DB Service Manual

< VCR Section >
Comparison Chart of Models and Marks
Model
W4A-A4180DB
W4A-D4180DB
W4D-D4180DB
IC501( SERVO / SYSTEM CONTROL )
Pin IN/ Signal
Mark
No. OUT Name
1 IN SC2-IN
IN PG-
2
DELAY
DVD-
3 IN POW-
SAFETY
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
FAN-
11 OUT
CONT1
12 - NU
OUT D-V-
13
SYNC
14 IN REMOTE Remote Signal Input
15 OUT C-ROTA
16 OUT H-A-SW
IN H-A-
17
COMP
18 OUT RF-SW
OUT Hi-Fi-H-
19
SW
20 OUT I/P-SW
21 - NU
VIDEO-
22 OUT
SW1
VIDEO-
23 OUT
SW2

IC PIN FUNCTION DESCRIPTIONS

Mark
A
B
C
Function
Input Signal from Pin 8 of
SCART2
Video Head Switching
Pulse Signal Adjusted
Voltage
Abnormal Voltage
Detection
Tape End Position Detect
Signal
Automatic Frequency
Control Signal
Video Envelope
Comparator Signal
Key Data Input 1
Key Data Input 2
Deck Mode Position
Detector Signal
Tape Start Position
Detector Signal
Fan Motor Control Signal
Not Used
Dummy V-sync Output
Color Phase Rotary
Changeover Signal
Video Head Amp
Switching Pulse
Head Amp Comparator
Signal
Video Head Switching
Pulse
HiFi Audio Head
Switching Pulse
Progressive/Interlace
Data Output
Not Used
Video Input Select Signal
1
Video Input Select Signal
2
Pin IN/ Signal
Mark
No. OUT
VIDEO-
24 OUT
SW3
REG-
25 OUT
CONT2
DVD-
26 OUT
AUDIO-
MUTE
RGB-
27 OUT THROUG
H
AUDIO-
28 OUT
MUTE-2
DVD-
29 OUT AUDIO-
MUTE2
DVD-
SCART-
30 OUT
AUDIO-
MUTE
REC-SAF-
31 IN
SW
P-DOWN -
32 IN
H
33 OUT D-REC-H Delayed Record Signal
34 IN RESET
35 IN Xcin
36 OUT Xcout
37 - Vcc
38 IN Xin
39 OUT Xout
40 - Vss
OUT PWR-SW DVD Power Supply
41
42 OUT REG-CONT
43 - NU
44 IN OSCin
45 OUT OSCout
46 - NU
47 IN LP
IN FSC-IN
48 [4.43MHz] 4.43MHz Clock Input
49 -
OSDVss
50 IN OSD-V-IN OSD Video Signal Input
51 - NU
1-15-1
Function
Name
Video Input Select Signal
3
Power Regulator Control
Signal
DVD Audio Mute Control
Signal
SCART 2 RGB Through
Control Signal
Audio Mute Control
Signal
DVD Audio Mute Control
Signal
DVD SCART Audio Mute
Control Signal
Recording Safety SW
Detect (With Record
tab="L"/ With out Record
tab="H")
Power Voltage Down
Detector Signal
System Reset Signal
(Reset="L")
Sub Clock Input
Sub Clock Output
+5V Power Supply
(Timer)
Main Clock Input
Main Clock Output
Ground
Control Signal
Power Regulator Control
Signal
Ground
Clock Input for letter size
Clock Output for letter
size
Ground
LP
OSDVss
Not Used
E9G00PIN