Ic Pin Function Descriptions - FUNAI WD6D-M100 Service Manual

< VCR Section >
IC501 ( MICROCONTROLLER 8BIT SERVO
/ SYSTEM CONTROL )
Pin IN/ Signal
No. OUT Name
1 IN SC2-IN
IN PG-DELAY Video Head Switching Pulse
2
IN DVD-POW-
3
SAFETY1
4 IN END-S
5 -
NU
6 IN V-ENV
7 IN KEY-1
8 IN KEY-2
9 IN LD-SW
IN DVD-POW-
10
SAFETY2
11 - NU
12 - NU
13 OUT D-V-SYNC Dummy V-sync Output
14 IN REMOTE
15 OUT C-ROTA
16 OUT H-A-SW
IN H-A-COMP Head Amp Comparator
17
18 OUT RF-SW
19 OUT Hi-Fi-H-SW HiFi Audio Head Switching
20 -
NU
21 -
NU
22 - NU
23 - NU
DVD-SC2-
24 OUT AUDIO-
MUTE
25 OUT 1V2CONT 1.2V Regulator Control Signal
DVD-
26 IN AUDIO-
MUTE

IC PIN FUNCTION DESCRIPTIONS

Function
Input Signal from Pin 8 of
SCART2
Signal Adjusted Voltage
DVD P-ON Power Detection
Input Signal 1
Tape End Position Detect
Signal
Not Used
Video Envelope Comparator
Signal
Key Data Input 1
Key Data Input 2
Deck Mode Position Detector
Signal
DVD P-ON Power Detection
Input Signal 2
Not Used
Not Used
Remote Signal Input
Color Phase Rotary
Changeover Signal
Video Head Amp Switching
Pulse
Signal
Video Head Switching Pulse
Pulse
Not Used
Not Used
Not Used
Not Used
SCART Jack Audio Mute
Control Signal 2 (Mute="L")
DVD Audio Mute Control
Signal (Mute="L")
Pin IN/ Signal
No. OUT Name
VCR-
27 OUT
AUDIO-
MUTE
28 IN A-MODE
DVD-
29 OUT AUDIO-
MUTE
DVD-SC-
30 OUT AUDIO-
MUTE
IN REC-SAF-
31
SW
IN P-DOWN-
32
H
33 OUT D-REC-H
34 IN RESET
35 IN Xcin
36 OUT Xcout
37 -
Vcc
38 IN Xin
39 OUT Xout
40 - Vss
41 OUT 8POUT-1
42 OUT 8POUT-2
43 IN CLKSEL
44 IN OSCin
45 OUT OSCout
46 - NU
47 IN LP
IN FSC-IN
48
[4.43MHz]
49 - OSDVss
50 IN OSD-V-IN
51 -
NU
52 OUT OSD-V-
OUT
53 -
OSDVcc
54 -
HLF
55 IN COLOR-IN
1-16-1
Function
VCR Audio Mute Control
Signal (Mute="L")
Hi-Fi Tape Defection Signal
DVD-Audio Mute Control
Signal (Mute="L")
SCART Jack Audio Mute
Control Signal (Mute="L")
Recording Safety SW Detect
(With Record tab= "L"/ With
out Record tab="H")
Power Voltage Down Detector
Signal
Delayed Record Signal
Micro Controller Reset Signal
Sub Clock Input
Sub Clock Output
Always +5V with AC Plug
Connected
Main Clock Input
Main Clock Output
Ground
Control SCART1 8Pin Level
by using 8POUT-1
Control SCART2 8Pin Level
by using 8POUT-2
Clock Select
Clock Input for letter size
Clock Output for letter size
Ground
LP
4.43MHz Clock Input
Ground
OSD Video Signal Input
Not Used
OSD Video Signal Output
+5V Power Supply (OSD)
LPF Connected Terminal
(Slicer)
SECAM or MESECAM
Chroma Video Input Signal at
Super Impose
E9TFCPIN