Ic Pin Function Descriptions - Symphonic WF802 Service Manual

[ VCR Section ]
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-
1 IN
CON-IN
2 OUT TV/VCR
3 - N.U.
DVD-
4 OUT
POWER
5 - N.U.
6 - N.U.
INSEL/
7 OUT
ST-SL
8 OUT HiFi-CS
2
IN/
I C BUS-
9
OUT
DATA
2
10 OUT I C BUS-
CLK
11 OUT SERIAL-
CLK
12 OUT SERIAL-
DATA
13 OUT A-MUTE
H-A-
14 IN
COMP
15 OUT C-ROTA
16 OUT H-A-SW
17 OUT RF-SW
18 OUT HiFi-H-
SW
19 OUT REC-CTL
(+)
20 OUT REC-CTL
(-)
21 IN C-SYNC
22 - GND
23 - N.U.
24 - OSDVss

IC PIN FUNCTION DESCRIPTIONS

"H" ≥ 4.5V, "L" ≤ 1.0V
Function
Remote
Control Sensor
RF Conv. ON/OFF
Signal (TV="L"/
VCR="H")
Not Used
DVD Power Control
Signal
Not Used
Not Used
Input Selector
Control Signal
(EE/Rec)/Still/Slow
(Playback)
HiFi IC Chip Select
2
I C BUS Data Input/
Output
2
I C BUS Clock Output
Serial IC Control
Clock Output
Serial IC Control Data
Output
Audio Mute Control
Signal (Mute = "H")
Head Amp
Coparator Signal
Color Phase Rotary
Changeover SIgnal
Video Head Amp
Switching Pulse
Video Head Switching
Pulse
HiFi Audio Head
Switching Pulse
Record Control
Signal (+)
Record Control
Signal (-)
Composite
Synchronized Pulse
GND
Not Used
OSDVss
Pin IN/
No. OUT
25 IN
26 IN
Active
Level
27 IN
L
28 -
H/L
29 -
-
30 OUT
L
- 31 OUT
-
32 -
H/Hi-z
33 OUT
/L
34 IN
H
35 IN
H/L
36 OUT OSC
H/L
37 -
H/L
38 IN
H/L
39 OUT X-OUT
40 -
H
41 IN
42 OUT XC-OUT
H/L
43 IN
H/L
44 -
45 OUT SP/LP/
H/L
H/L
46 -
47 OUT TRICK/C-
H/L
H/L
48 OUT C-F/R
H/L
49 IN
PULSE
50 -
-
-
51 IN
-
1-15-1
Signal
Function
Name
Recoding Safety SW
Detect (With Record
REC-SW
tab="L"/ With out
Record tab="H")
C-VIDEO- Composite Video
IN Signal Input (Slicer)
Condenser
VHOLD Connected
Terminal (Slicer)
LPF Connected
HLF
Terminal (Slicer)
GND GND
Composite Video
OSD- BB-
Signal Output
OUT
(Blue Back)
OSD-
Character Output
CHARA-
(Superimposed)
OUT
OSDVcc OSDVcc
D-V Dummy V-sync
SYNC Output
System Reset
RESET
Signal (Reset="L")
Clock Input
OSC
IN
for letter size
Clock Output for let-
OUT
ter size
Vcc Vcc
Main Clock Input
X-IN
14.31818 MHz
Main Clock Output
Vss Vss(GND)
XC-IN Sub Clock 32 kHz
Sub Clock 32 kHz
CLKSEL Clock Select (GND)
N.U. Not Used
Top Speed Select
Siganl (SP="L"/
SLP
LP="Z"/SLP="H")
N.U. Not Used
Special Playback/
Copy Guard/APC
G/APC
Control Signal
Capstan Motor FWD/
REV Control Signal
(FWD="L"/REV="H")
Take Up Reel
T-REEL
Rotation Signal
N.U. Not Used
Capstan Motor
C-FG Rotation Detection
Pulse
Active
Level
H/L
-
-
-
-
-
-
-
H/Hi-z
L
-
-
-
-
-
-
-
-
L
-
H/Z/L
-
H/Z/L
H/L
PULSE
-
PULSE
H9200PIN