Ic Pin Function Descriptions - Magnavox DV225MG9 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
P-DOWN
1 IN Down Detector
-H
Signal
Recording Safety
SW Detect (With
REC-
2 IN Record tab = "L" /
SAF-SW
With out Record
tab = "H")
Take Up Reel
3 IN T-REEL
Rotation Signal
REMOTE- Remote Control
4 IN
DVD Sensor
REMOTE- Remote Control
5 IN
VIDEO Sensor
- NU Not Used
6
Audio Mute
AUDIO-
7 OUT Control Signal
MUTE-H
(Mute = "H")
- NU Not Used
8
- NU Not Used
9
POWER- POWER LED
10 OUT
LED Signal Output
POWER- POWER LED
11 OUT
LED Signal Output
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
D-V Dummy V-sync
19 OUT
SYNC Output
20 - NU Not Used
Active
Function
Level
H
H/L
PULSE
L
L
-
H
-
-
H/L
H/L
H/L
H/L
H/L
H/L
H
-
H/L
H/Hi-z
-
Pin IN/ Signal
No. OUT Name
LM-FWD/
21 OUT
REV
22 OUT P-ON-L
23 - NU
24 OUT D-REC-H
Hi-Fi-H-
25 OUT
SW
DVD-
26 OUT
POWER
27 OUT C-F/R
28 OUT C-CONT
29 OUT D-CONT
30 - NU
31 - VDD
32 OUT OSCO
33 IN OSCI
34 - VSS
35 IN XI
36 OUT XO
37 IN SXI
VIDEO-
38 OUT
OUT
39 - VSS2
40 IN VIDEO-IN
41 IN C-SYNC
42 - VDD2
1-17-1
Active
Function
Level
Loading Motor
FWD/ REV H/Z/L
Output
Power On Signal
L
to Low
Not Used -
Delayed Record
H
Signal
HiFi Audio Head
H/L
Switching 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
Composite Video
-
Signal Output
VSS2 -
Composite Video
-
Signal Input
Composite
Synchronized PULSE
Pulse
VDD2 -
E8E62PIN