Ic Pin Function Descriptions - Toshiba DVR80KF Service Manual

IC PIN FUNCTION DESCRIPTIONS

< VCR Section >
IC501 ( MICROCONTROLLER 8BIT SERVO
/ SYSTEM CONTROL )
Pin IN/ Signal
No. OUT Name
1 IN
SC2-IN
2 IN PG-DELAY
DVD-POW-
3 IN
SAFETY1
4 IN END-S
5 IN
AFC
6 IN
V-ENV
7 IN
KEY-1
8 IN KEY-2
9 IN LD-SW
DVD-POW-
10 IN
SAFETY2
11 - NU
12 -
NU
13 OUT D-V-SYNC Dummy V-sync Output
14 IN
REMOTE
15 OUT C-ROTA
16 OUT H-A-SW
H-A-COMP Head Amp Comparator
17 IN
18 OUT RF-SW
19 OUT Hi-Fi-H-
SW
20 -
NU
21 - NU
22 -
NU
23 - NU
DVD-SC2-
24 OUT AUDIO-
MUTE
25 OUT 1V2CONT
Function
Input Signal from Pin 8 of
SCART2
Video Head Switching Pulse
Signal Adjusted Voltage
DVD P-ON Power Detection
Input Signal 1
Tape End Position Detect
Signal
Tuner Voltage Input Signal
Video Envelope Comparator
Signal
Key Data Input 1
Key Data Input 2
Deck Mode Position
Detector Signal
DVD P-ON Power Detection
Input Signal 2
Not Used
Not Used
Remote Signal Input
Color Phase Rotary
Changeover Signal
Video Head Amp Switching
Pulse
Signal
Video Head Switching Pulse
HiFi Audio Head Switching
Pulse
Not Used
Not Used
Not Used
Not Used
SCART Jack Audio Mute
Control Signal 2 (Mute="L")
1.2V Regulator Control
Signal
Pin IN/ Signal
No. OUT Name
DVD-
26 IN AUDIO-
MUTE
VCR-
27 OUT AUDIO-
MUTE
28 IN A-MODE
29 OUT AUDIO-
MUTE
SC-
30 OUT
AUDIO-
MUTE
REC-SAF-
31 IN
SW
P-DOWN-
32 IN
H
33 OUT D-REC-H
34 IN
RESET
35 IN
Xcin
36 OUT Xcout
37 -
Vcc
38 IN
Xin
39 OUT Xout
40 -
Vss
41 OUT 8POUT-1
42 OUT 8POUT-2
43 IN
CLKSEL
44 IN OSCin
45 OUT OSCout
46 - NU
47 IN
LP
FSC-IN
48 IN
[4.43MHz]
49 - OSDVss
50 IN
OSD-V-IN
51 - NU
52 OUT OSD-V-
OUT
53 -
OSDVcc
1-18-1
Function
DVD Audio Mute Control
Signal (Mute="L")
VCR Audio Mute Control
Signal (Mute="H")
Hi-Fi Tape Defection Signal
Audio Mute Control Signal
(Mute="L")
SCART Jack Audio Mute
Control Signal (Mute="L")
Recording Safety SW Detect
(With Record tab="L"/ With
out Record tab="H")
Power Voltage Down
Detector Signal
Delayed Record Signal
Micro Controller Reset
Signal
Sub Clock Input
Sub Clock Output
Always +5V with AC Plug
Connected
Main Clock Input
Main Clock Output
Ground
Control SCART1 8Pin Level
by using 8POUT-1
Control SCART2 8Pin Level
by using 8POUT-2
Clock Select
Clock Input for letter size
Clock Output for letter size
Ground
LP
4.43MHz Clock Input
Ground
OSD Video Signal Input
Not Used
OSD Video Signal Output
+5V Power Supply (OSD)
E9TK2PIN