Ic Pin Function Descriptions - Toshiba rd-xv48dtkb Service Manual

IC PIN FUNCTION DESCRIPTIONS

< VCR Section >
IC501 ( SERVO / SYSTEM CONTROL )
Pin IN/ Signal
No. OUT Name
Input Signal from Pin 8 of
1 IN SC2-IN
SCART2
IN PG-DELAY Video Head Switching Pulse
2
Signal Adjusted Voltage
IN DVD-POW- DVD P-ON Power Detection
3
SAF Input Signal
Tape End Position Detect
4 IN END-S
Signal
5 IN AFC
Tuner Voltage Input Signal
Video Envelope Comparator
6 IN V-ENV
Signal
7 IN KEY-1
Key Data Input 1
8 IN KEY-2 Key Data Input 2
Deck Mode Position Detector
9 IN LD-SW
Signal
10 - NU Not Used
11 OUT FAN-
Fan On Control Signal
CONT1
12 -
NU Not Used
13 OUT D-V- SYNC Dummy V-sync Output
14 IN REMOTE
Remote Signal Input
Color Phase Rotary
15 OUT C-ROTA
Changeover Signal
Video Head Amp Switching
16 OUT H-A-SW
Pulse
IN H-A-COMP Head Amp Comparator
17
Signal
18 OUT RF-SW
Video Head Switching Pulse
19 OUT Hi-Fi-H-SW HiFi Audio Head Switching
Pulse
20 OUT DUBBING- DUBBING-LED Control
LED Signal
21 OUT DVD-REC- DVD-REC-LED Control
LED Signal
22 OUT HDD-REC- HDD-REC-LED Control
LED Signal
23 OUT VCR-REC- VCR-REC-LED Control
LED Signal
24 - NU Not Used
25 OUT 1V2CONT 1.2V Regulator Control Signal
DVD/HDD-
DVD/HDD Audio Mute
26 OUT AUDIO-
Control Signal (Mute="H")
MUTE
Function
1-17-1
Pin IN/ Signal
No. OUT Name
VCR-
VCR Audio Mute Control
27 OUT AUDIO-
Signal (Mute="H")
MUTE
28 IN A-MODE Hi-Fi Tape Defection Signal
29 OUT AUDIO- Audio Mute Control Signal
MUTE (Mute="H")
SC-
SCART Jack Audio Mute
30 OUT AUDIO-
Control Signal (Mute="H")
MUTE
Recording Safety SW Detect
IN REC-SAF-
31
(With Record tab="L"/ With
SW
out Record tab="H")
IN P-DOWN- Power Voltage Down Detector
32
H Signal
33 OUT D-REC-H
Delayed Record Signal
34 IN RESET Micro Controller Reset Signal
35 IN Xcin
Sub Clock Input
36 OUT Xcout Sub Clock Output
Always +5V with AC Plug
37 - Vcc
Connected
38 IN Xin Main Clock Input
39 OUT Xout Main Clock Output
40 -
Vss Ground
Control SCART1 8Pin Level
41 -
8POUT-1
by using 8POUT-1
Control SCART2 8Pin Level
42 - 8POUT-2
by using 8POUT-2
43 IN CLKSEL Clock Select
44 IN OSCin
Clock Input for letter size
45 OUT OSCout Clock Output for letter size
46 -
NU Ground
47 IN LP LP
IN FSC-IN
48 4.43MHz Clock Input
[4.43MHz]
49 - OSDVss Ground
50 IN OSD-V-IN OSD Video Signal Input
51 -
NU Not Used
52 OUT OSD-V-
OSD Video Signal Output
OUT
53 -
OSDVcc +5V Power Supply (OSD)
LPF Connected Terminal
54 -
HLF
(Slicer)
55 -
NU Not Used
56 - DAVN-L VPS/PDC Data (Receive="L")
Function
E3NG1PIN