Ic Pin Function Descriptions - Magnavox sylvania mwd2205 Service Manual

IC PIN FUNCTION DESCRIPTIONS

< VCR Section >
Comparison Chart of Models and Marks
Model
DVC840F
MWD2205
DVC865F
IC501 (SERVO/SYSTEM CONTROL/OSD)
"H" ≥ 4.5 V, "L" ≤ 1.0 V
Pin IN/ Signal
Mark
No. OUT Name
P-DOWN
1 IN
-L
REC-
2 IN
SAF-SW
3 IN T-REEL
4 - N.U.
REMOTE-
5 IN
VIDEO
- N.U.
6
A-MUTE-
7 OUT
H
8 - N.U.
- N.U.
9
10 - N.U.
IN/
11 DVD-PC
OUT
IN/ IIC-BUS-
12
OUT SDA
IIC-BUS-
13 OUT
SCL
14 OUT YCA-SCL
15 OUT YCA-SDA
16 OUT YCA-CS
17 - N.U.
Mark
A
B
C
Active
Function
Level
Power Voltage
Down Detector L
Signal
Recording
Safety SW
Detect (With
Record tab = H/L
"L" / With out
Record tab =
"H")
Take Up Reel
PULSE
Rotation Signal
Not Used -
Remote
L
Control Sensor
Not Used -
Audio Mute
Control Signal H
(Mute = "H")
Not Used -
Not Used -
Not Used -
DVD Power
-
Supply
IIC BUS
H/L
Control Data
IIC BUS
H/L
Control Clock
YCA IC Control
H/L
Clock
YCA IC Control
H/L
Data
YCA IC Control
H/L
Chip Select
Not Used -
1-16-1
Pin IN/ Signal
Mark
No. OUT Name
18 OUT RF-SW
D-V
19 OUT
SYNC
20 IN RESET
LM-FWD/
21 OUT
REV
22 OUT P-ON-L
23 - N.U.
24 OUT D-REC-H
A,B - N.U.
25
HiFi-H-
C OUT
SW
DVD-
26 OUT
POWER
27 OUT C-F/R
28 OUT C-CONT
29 OUT D-CONT
30 - N.U.
31 - VDD
32 OUT OSCO
33 IN OSCI
34 - VSS
35 IN XI
36 OUT XO
37 IN SXI
Active
Function
Level
Video Head
Switching H/L
Pulse
Dummy V-sync
H/Hi-z
Output
System Reset
Signal (Reset = L
"L")
Loading Motor
FWD/ REV H/Z/L
Output
Power On
L
Signal to Low
Not Used -
Delayed
H
Record Signal
Not Used -
HiFi Audio
Head Switching H/L
Pulse
DVD Power
H
Control Signal
Capstan Motor
FWD/REV
Control Signal H/L
(FWD = "L" /
REV = "H")
Capstan Motor
PWM
Control Signal
Drum Motor
PWM
Control Signal
Not Used -
VDD -
Main Clock
Output -
14.31818MHz
Main Clock
Input -
14.31818MHz
VSS
Sub Clock
Input 32.768 -
MHz
Sub Clock
Output 32.768 -
MHz
Operation
Mode Selecting -
Input Signal
H9801PIN