Emerson EWD2004OM Supplement Service Manual

1-14-1 H9600PIN
IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
“H” ≥ 4.5V, “L” ≤ 1.0V
Model Mark
DVC860E A
DVC840E B
DVC845E C
EWD2204 D
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
1IN
P-DOWN
-L
Power Voltage
Down Detector
Signal
L
2IN
REC-
SAF-SW
Recording
Safety SW
Detect (With
Record tab =
”L”/ With out
Record tab =
”H”)
H/L
3INT-REEL
Take Up Reel
Rotation
Signal
PULSE
4 - N.U. Not Used -
5
IN
REMOTE-
VIDEO
Remote
Control Sensor
L
6
AOUT
DISPLAY-
CLK
7seg. Driver IC
Clock Control
Output Signal
H/L
B,C,D - N.U. Not Used -
7OUT
A-MUTE-
H
Audio Mute
Control Signal
(Mute = “H”)
H
8
AOUT
DISPLAY-
DATA
7seg. Driver IC
Data Control
Output Signal
H/L
B,C,D - N.U. Not Used -
9
AOUT
DISPLAY-
ENA
7seg. Driver IC
Enable Control
Output Signal
L
B,C,D - N.U. Not Used -
10 - N.U. Not Used -
11 - N.U. Not Used -
12
IN/
OUT
IIC-BUS-
SDA
IIC BUS
Control Data
H/L
13
OUT
IIC-BUS-
SCL
IIC BUS
Control Clock
H/L
14 OUT
YCA-SCL
YCA IC
Control Clock
H/L
15 OUT YCA-SDA
YCA IC
Control Data
H/L
16 OUT YCA-CS
YCA IC
Control Chip
Select
H/L
17 - N.U. Not Used -
18 OUT RF-SW
Video Head
Switching
Pulse
H/L
19 OUT
D-V
SYNC
Dummy V-
sync Output
H/Hi-z
20 IN RESET
System Reset
Signal
(Reset=”L”)
L
21 OUT
LM-FWD/
REV
Loading Motor
FWD/ REV
Output
H/Z/L
22 OUT P-ON-L
Power On
Signal to Low
L
23 - N.U. Not Used -
24 OUT D-REC-H
Delayed
Record Signal
H
25
AOUT
HiFi-H-
SW
HiFi Audio
Head
Switching
Pulse
H/L
B,C,D - N.U. Not Used -
26
OUT
DVD-
POWER
DVD Power
Control Signal
H
27 OUT C-F/R
Capstan Motor
FWD/REV
Control Signal
(FWD=”L”/
REV=”H”)
H/L
28 OUT C-CONT
Capstan Motor
Control Signal
PWM
29 OUT D-CONT
Drum Motor
Control Signal
PWM
30 - N.U. Not Used -
31 - VDD VDD -
32 OUT OSCO
Main Clock
Output
14.31818MHz
-
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level

Emerson EWD2004OM Specifications

General

Brand	Emerson
Model	EWD2004OM
Category	DVD Player
Language	English