Toshiba DVR80KF Service Manual

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

Toshiba DVR80KF Specifications

General

Brand	Toshiba
Model	DVR80KF
Category	DVD Recorder
Language	English