Emerson EWV401B - IC Pin Function Descriptions

1-13-1 HB3J1PIN
IC PIN FUNCTION DESCRIPTIONS
Comparison Chart of Models and Marks
IC501( SERVO / SYSTEM CONTROL IC )
“H” ≥ 4.5V, “L” ≤ 1.0V
Pins that have * in the Pin No. section on table below
are not used.
Model Mark
EWV401B A
EWV601B B
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level
1IN
REMO-
CON-IN
Remote
Control Sen-
sor
L
2 OUT TV/VCR
RF Conv. ON/
OFF Signal
(TV="L"/
VCR="H")
H/L
3 - N.U. Not Used -
4 - N.U. Not Used -
5 - N.U. Not Used -
6 - N.U. Not Used -
7OUT
INSEL/
ST-SL
Input Selector
Control Signal
(EE/Rec)/Still/
Slow
(Playback)
H/Hi-z
/L
8
A - N.U. Not Used -
B OUT HiFi-CS
HiFi IC Chip
Select
H
9
IN/
OUT
I
2
C BUS-
DATA
I
2
C BUS Data
Input/Output
H/L
10 OUT
I
2
C BUS-
CLK
I
2
C BUS Clock
Output
H/L
11
A - N.U. Not Used -
B OUT HiFi-CLK
HiFi IC
Control Clock
Output
H/L
12
A - N.U. Not Used -
BOUT
HiFi-
DATA
HiFi IC
Control Data
Output
H/L
13 OUT A-MUTE
Audio Mute
Control
Signal
(Mute = “H”)
H
14 IN
H-A-
COMP
Head Amp
Comparator
Signal
H/L
15 OUT C-ROTA
Color Phase
Rotary
Changeover
SIgnal
H/L
16 OUT H-A-SW
Video Head
Amp Switching
Pulse
H/L
17 OUT RF-SW
Video Head
Switching
Pulse
H/L
18
A - N.U. Not Used -
BOUT
HiFi-H-
SW
HiFi Audio
Head
Switching
Pulse
H/L
19 OUT
REC-CTL
(+)
Record
Control
Signal (+)
H/L
20 OUT
REC-CTL
(-)
Record
Control
Signal (-)
H/L
21 IN C-SYNC
Composite
Synchronized
Pulse
PULSE
22 - GND GND -
23 - N.U. Not Used -
24 - OSDVss OSDVss -
25 IN REC-SW
Recording
Safety SW
Detect (With
Record tab =
”L”/ With out
Record tab =
”H”)
H/L
*26 IN
C-
VIDEO-
IN
Composite
Video
Signal Input
(Slicer)
-
*27 IN VHOLD
Condenser
Connected
Terminal
(Slicer)
-
28 - HLF
LPF
Connected
Terminal
(Slicer)
-
29 - GND GND -
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
Active
Level