Ic Pin Function Descriptions - Magnavox MWD2206 Service Manual

IC PIN FUNCTION DESCRIPTIONS

< VCR Section >
IC501 (SERVO/SYSTEM CONTROL/OSD)
"H" ≥ 4.5 V, "L" ≤ 1.0 V
Pin IN/ Signal
No. OUT Name
Power Voltage
1 IN P-DOWN -H Down Detector
Signal
Recording Safety
SW Detect (With
REC-SAF-
2 IN Record tab = "L" /
SW
With out Record tab
= "H")
Take Up Reel
3 IN T-REEL
Rotation Signal
4 - NU Not Used
REMOCON Remote Control
5 IN
-IN Sensor
- NU Not Used
6
AUDIO- Audio Mute Control
7 OUT
MUTE-H Signal (Mute = "H")
- NU Not Used
8
- NU Not Used
9
RF Conv. ON/OFF
10 OUT VCR/TV Signal (VCR = "H"/
TV = "L" )
RF Conv. Output
Channel Switching
11 OUT CONV-SW
Signal (3ch = "Hi-z",
4ch = "L")
IN/ IIC-BUS- IIC BUS Control
12
OUT SDA Data
IIC-BUS- IIC BUS Control
13 OUT
SCL Clock
YCA IC Control
14 OUT YCA-SCL
Clock
YCA IC Control
15 OUT YCA-SDA
Data
YCA IC Control
16 OUT YCA-CS
Chip Select
17 - NU Not Used
Video Head
18 OUT RF-SW
Switching Pulse
Dummy V-sync
19 OUT D-V SYNC
Output
System Reset
20 IN RESET
Signal (Reset = "L")
Active
Function
Level
H
H/L
PULSE
-
H/L
-
H
-
-
H/L
Hi-z/L
H/L
H/L
H/L
H/L
H
-
H/L
H/Hi-z
L
1-16-1
Pin IN/ Signal
No. OUT Name
LM-FWD/ Loading Motor
21 OUT
REV FWD/ REV Output
Power On Signal to
22 OUT P-ON-L
Low
23 - NU Not Used
Delayed Record
24 OUT D-REC-H
Signal
25 - NU Not Used
DVD- DVD Power Control
26 OUT
POWER Signal
Capstan Motor
FWD/REV Control
27 OUT C-F/R
Signal (FWD = "L" /
REV = "H")
Capstan Motor
28 OUT C-CONT
Control Signal
Drum Motor Control
29 OUT D-CONT
Signal
30 - NU Not Used
31 - VDD VDD
Main Clock Output
32 OUT OSCO
14.31818MHz
Main Clock Input
33 IN OSCI
14.31818MHz
34 - VSS VSS
Sub Clock Input
35 IN XI
32.768 KHz
Sub Clock Output
36 OUT XO
32.768 KHz
Operation Mode
37 IN SXI Selecting Input
Signal
VIDEO- Composite Video
38 OUT
OUT Signal Output
39 - Vss2 Vss2
Composite Video
40 IN VIDEO-IN
Signal Input
Composite
41 IN C-SYNC
Synchronized Pulse
42 - VDD2 VDD2
Low Path Filter Input
43 IN AFCC
Signal For AFC
Low Path Filter
44 OUT AFCLPF Output Signal For
AFC
45 - NU Not Used
Active
Function
Level
H/Z/L
L
-
H
-
H
H/L
PWM
PWM
-
-
-
-
-
-
-
-
-
-
-
PULSE
-
-
-
-
E8A61PIN