Ic Pin Function Descriptions - Symphonic FUNAI SYLVANIA Emerson SC309C Service Manual

IC 201 (TV/VCR Micro Computer)
Pin IN/ Signal
No. OUT Name
1 IN LD-SW
2 IN P-SAFETY 1
3 IN P-SAFETY 2
4 IN P-SAFETY 3
5 IN KEY0
6 IN KEY1
7 IN END-SENS End-Sensor
8 - NU
9 IN ST-SENS
10 IN V-ENV
11 - NU
12 OUT SP-MUTE
IN/
13 D-V SYNC
OUT
14 IN REMOTE
15 OUT ROTA
16 - NU
17 - NU
18 OUT RF-SW
19 - NU
20 OUT EXT-L
21 OUT D-PB-H
22 OUT REC-LED
23 OUT REC-LED
24 - NU
25 - NU
26 - NU
IN/
27 REC/EE/PB YCA IC Mode Output
OUT
TAPE-
IN/
28
OUT
SPEED

IC PIN FUNCTION DESCRIPTIONS

"H" ≥ 4.5V, "L" ≤ 1.0V
Function
Loading Switch Input
Power Supply Failure
Detection 1
Power Supply Failure
Detection 2
Power Supply Failure
Detection 3
Key 0 Input
Key 1 Input
Not Used
Start-Sensor
Video Envelope Input
Not Used
Speaker Mute Output
Artificial V-Sync Output
Remote Signal Input
Color Phase Rotary
Changeover SIgnal
Not Used
Not Used
Video Head Switching
Pulse
Not Used
External Input or
Playback = Output
Playback Output
Recording LED Control
Signal
Recording LED Control
Signal
Not Used
Not Used
Not Used
Tape Speed Control Output
Pin IN/ Signal
No. OUT Name
EXT-H/
29 OUT
INSEL
IN/
30 RENTAL
OUT
31 OUT P-ON-H
32 OUT SPL-PLAY
REC-
33 IN
SAFETY
34 IN RESET
35 IN XC-IN
36 OUT XC-OUT
37 - TIMER+5V
38 IN X-IN
39 OUT X-OUT
40 - GND
41 OUT SPOT-KILL Counter-measure for Spot
42 - NU
43 IN CLKSEL
44 OUT D-REC-H
45 IN I2C-OPEN
46 - GND
47 - NU
48 - NU
49 - GND
50 - NU
51 - NU
52 - NU
53 - P-ON+5V
54 - HLF
55 IN V-HOLD
56 IN CV-IN
57 - GND
58 IN H-SYNC
59 IN V-SYNC
60 OUT OSD-BLK
61 - NU
1-13-1
Function
External Input or Playback
SIgnal Output/Input
Selector Control Signal
Rental Position Control
Signal
Power On Signal at High
Special Playback Control
Signal
Record Protection Tab
Detection
System Reset Signal
(Reset="L")
Sub Clock 32 kHz
Sub Clock 32 kHz
Vcc
Main Clock Input
Main Clock Output
GND
Not Used
Clock Select (GND)
Delayed Record Signal
White Balance Adjust
Mode Judgment
GND
Not Used
Not Used
OSD GND
Not Used
Not Used
Not Used
OSD Vcc
HLF
VHOLD
Video Signal Input
GND
H-SYNC Input
V-SYNC Input
Output for Picture Cut off
Not Used
T4307PIN