Ic Pin Function Descriptions - Sylvania Emerson EWV601A Service Manual

IC PIN FUNCTION DESCRIPTIONS

IC501( SERVO / SYSTEM CONTROL IC )
Pins that have * in the Pin No. section on table below
are not used.
Pin IN/ Signal
No. OUT Name
REMO- Remote
1 IN
CON-IN Control Sensor
RF Conv. ON/OFF
2 OUT TV/VCR Signal (TV="L"/
VCR="H")
3 - N.U. Not Used
4 - N.U. Not Used
5 - N.U. Not Used
6 - N.U. Not Used
Input Selector
INSEL/ Control Signal
7 OUT
ST-SL (EE/Rec)/Still/Slow
(Playback)
8 OUT HiFi-CS HiFi IC Chip Select
2 2
IN/
I C BUS- I
9
OUT
DATA Output
2
10 OUT I C BUS-
2
I
CLK
HiFi IC Control Clock
11 OUT HiFi-CLK
Output
HiFi- HiFi IC Control Data
12 OUT
DATA Output
Audio Mute Control
13 OUT A-MUTE
Signal (Mute = "H")
H-A- Head Amp
14 IN
COMP Coparator Signal
Color Phase Rotary
15 OUT C-ROTA
Changeover SIgnal
Video Head Amp
16 OUT H-A-SW
Switching Pulse
Video Head Switching
17 OUT RF-SW
Pulse
HiFi-H- HiFi Audio Head
18 OUT
SW Switching Pulse
REC-CTL Record Control
19 OUT
(+) Signal (+)
REC-CTL Record Control
20 OUT
(-) Signal (-)
Composite
21 IN C-SYNC
Synchronized Pulse
22 - GND GND
23 - N.U. Not Used
24 - OSDVss OSDVss
Recoding Safety SW
Detect (With Record
25 IN REC-SW
tab="L"/ With out
Record tab="H")
All manuals and user guides at all-guides.com
"H" ≥ 4.5V, "L" ≤ 1.0V
Active
Function
Level
L
H/L
H/Hi-z
/L
H
C BUS Data Input/
H/L
H/L
C BUS Clock Output
H/L
H/L
H
H/L
H/L
H/L
H/L
H/L
H/L
H/L
PULSE
H/L
Pin IN/ Signal
No. OUT Name
C-VIDEO-
*26 IN
IN
*27 IN VHOLD
28 - HLF
29 - GND
30 OUT OSD- BB-
OUT
-
OSD-
-
31 OUT CHARA-
-
OUT
-
32 - OSDVcc
D-V
33 OUT
SYNC
34 IN RESET
35 IN OSC
36 OUT OSC
37 - Vcc
38 IN X-IN
39 OUT X-OUT
40 - Vss
41 IN XC-IN
42 OUT XC-OUT
43 IN CLKSEL
44 OUT PICTURE-
SEL
SP/LP/
45 OUT
SLP
46 - N.U.
TRICK/C-
47 OUT
G/APC
48 OUT C-F/R
49 IN T-REEL
50 - N.U.
-
-
51 IN C-FG
-
52 IN D-FG
53 IN D-PG
1-13-1
Function
Composite Video
Signal Input (Slicer)
Condenser
Connected
Terminal (Slicer)
LPF Connected
Terminal (Slicer)
GND
Composite Video
Signal Output
(Blue Back)
Character Output
(Superimposed)
OSDVcc
Dummy V-sync
Output
System Reset
Signal (Reset="L")
Clock Input
IN
for letter size
Clock Output for let-
OUT
ter size
Vcc
Main Clock Input
14.31818 MHz
Main Clock Output
Vss(GND)
Sub Clock 32 kHz
Sub Clock 32 kHz
Clock Select (GND)
Picture Control Signal
Top Speed Select
Siganl (SP="L"/
LP="Z"/SLP="H")
Not Used
Special Playback/
Copy Guard/APC
Control Signal
Capstan Motor FWD/
REV Control Signal
(FWD="L"/REV="H")
Take Up Reel
Rotation Signal
Not Used
Capstan Motor
Rotation Detection
Pulse
Drum Motor Rotation
Detection Pulse
Drum Motor Pulse
Generator
Active
Level
-
-
-
-
-
-
-
H/Hi-z
L
-
-
-
-
-
-
-
-
L
-
H/Z/L
-
H/Z/L
H/L
PULSE
-
PULSE
PULSE
PULSE
HB400PIN