Ic Pin Function Descriptions - Durabrand ADB2737BD Service Manual

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< VCR Section >
IC501( SERVO / SYSTEM CONTROL IC )
Pin IN/ Signal
No. OUT Name
1 IN SC2-IN
IN PG-DELAY Video Head Switching Pulse
2
DVD-POW-
3 IN
SAFETY
4 IN END-S
5 IN AFC
6 IN V-ENV
7 IN KEY-1
8 IN KEY-2
9 IN LD-SW
10 IN ST-S
FAN-
11 OUT
CONT1
12 -
NU
13 OUT D-V- SYNC Dummy V-sync Output
IN REMOCON
14
-IN
15 OUT C-ROTA
16 OUT H-A-SW
IN H-A-COMP Head Amp Comparator
17
18 OUT RF-SW
19 OUT Hi-Fi-H-SW HiFi Audio Head Switching
20 - NU
21 - NU
VIDEO-
22 OUT
SW1
VIDEO-
23 OUT
SW2
VIDEO-
24 OUT
SW3
REG-
25 OUT
CONT2
DVD-
26 OUT AUDIO-
MUTE
RGB-
27 OUT
THROUGH

IC PIN FUNCTION DESCRIPTIONS

Function
Input Signal from Pin 8 of
SCART2
Signal Adjusted Voltage
Abnormal Voltage Detection
Tape End Position Detect
Signal
Automatic Frequency Control
Signal
Video Envelope Comparator
Signal
Key Scan Input Signal 1
Key Scan Input Signal 2
Deck Mode Position Detector
Signal
Tape Start Position Detector
Signal
Fan Motor Control Signal
Not Used
Remote Control Sensor
Color Phase Rotary
Changeover SIgnal
Video Head Amp Switching
Pulse
Signal
Video Head Switching Pulse
Pulse
Not Used
Not Used
Video Input Select Signal
Video Input Select Signal
Video Input Select Signal
Power Regulator Control
Signal
DVD Audio Mute Control
Signal
SCART 2 RGB Through
Control Signal
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Pin IN/ Signal
No. OUT Name
AUDIO-
28 OUT
MUTE-2
DVD-
29 OUT AUDIO-
MUTE2
DVD-
SCART-
30 OUT
AUDIO-
MUTE
REC-SAF-
31 IN
SW
32 IN P-DOWN -H
33 OUT D-REC-H
34 IN RESET
35 IN Xcin
36 OUT Xcout
37 - Vcc
38 IN Xin
39 OUT Xout
40 - GND
41 OUT PWR-SW
REGULATOR
42 OUT
-CONTROL
43 IN CLKSEL
44 IN OSCin
45 OUT OSCout
46 - NUB
47 IN LP
IN FSC-IN
48
[4.43MHz]
49 - OSDVss
50 IN OSD-V-IN
51 - NU
52 OUT OSD-V-
OUT
53 - OSDVcc
54 - HLF
55 - NU
56 IN DAVN-L
57 - NU
58 IN C-SYNC
1-15-1
Function
Audio Mute Control Signal
DVD Audio Mute Control
Signal
DVD SCART Audio Mute
Control Signal
Recording Safety SW Detect
(With Record tab="L"/ With out
Record tab="H")
Power Voltage Down Detector
Signal
Delayed Record Signal
System Reset Signal
(Reset="L")
Sub Clock
Sub Clock
Vcc
Main Clock Input
Main Clock Input
Vss(GND)
DVD Power Supply Control
Signal
Power Regulator Control
Signal
Clock Select (GND)
Clock Input for letter size
Clock Output for letter size
Not Used
LP
4.43MHz Clock Input
OSDVss
OSD Video Signal Input
Not Used
OSD Video Signal Output
OSDVcc
LPF Connected Terminal
(Slicer)
Not Used
VPS/PDC Data Receive = "L"
Not Used
Composite Synchronized
Pulse
E9B01PIN
18/6/2013