Toshiba D-VR7KC, Руководство по обслуживанию

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1-16-1 E9KG0PIN
IC PIN FUNCTION DESCRIPTIONS
< VCR Section >
IC1501
(SYSTEM CONTROL MICROPROCESSOR)
Pin
No.
IN/
OUT
Signal
Name
Function
1 IN P-DOWN
-H
Power Voltage Down Detector
Signal
2
IN
READY/
BUSY
Ready/Busy Communication
Control with Main Micro
Controller
3 IN T-REEL Take Up Reel Rotation Signal
4 - NU Not Used
5 IN REMOTE Remote Control Sensor
6 OUT
DISPLAY-
ENA
FL Display Driver IC Enable
Control Output Signal
7 OUT
DISPLAY-
DATA
FL Display Driver IC Data
Control Output Signal
8 OUT
DISPLAY-
CLK
FL Display Driver IC Clock
Control Output Signal
9 - NU Not Used
10
-
NU Not Used
11 -
NU Not Used
12
-
NU Not Used
13 - NU Not Used
14 OUT S-CLOCK Communication of Clock with
VCR Micro Controller
15 IN S-DATA-
IN
Communication of Data to
VCR Micro Controller
16 OUT
S-DATA-
OUT
Communication of Data from
VCR Micro Controller
17
IN/
OUT
IIC-BUS
SDA
IIC BUS Serial Data
18 OUT
IIC-BUS
SCL
IIC BUS Serial Clock
19 OUT YCA-SCL YCA IC Serial Clock
20 OUT YCA-SDA YCA IC Serial Data
21 OUT YCA-CS YCA IC Chip Select
22 IN
REC-
SAF-SW
Recording Safety SW Detect
(With Record tab = ”L”/
Without Record tab = ”H”)
23 OUT RF-SW Video Head Switching Pulse
24 OUT
D-V
SYNC
Dummy V-sync Output
25 IN RESET
System Reset Signal
(Reset=”L”)
26 OUT
LM-FWD/
REV
Loading Motor FWD/ REV
Output
27 OUT P-ON-L Power On Signal to Low
28 - NU Not Used
29 OUT D-REC Delayed Record Signal
30 OUT
Hi-Fi-H-
SW
Hi-Fi Audio Head Switching
Pulse
31 OUT
VCR-
AUDIO-
MUTE
VCR Audio Mute Control
Signal
32 OUT C-F/R
Capstan Motor FWD/REV
Control Signal (FWD=”L”/
REV=”H”)
33 OUT C-CONT
Capstan Motor Control Signal
34 OUT D-CONT
Drum Motor Control Signal
35
-
NU Not Used
36 - VDD Power Supply
37 OUT OSCO
Main Clock Output
14.31818MHz
38 IN OSCI
Main Clock Input
14.31818MHz
39 - GND Ground
40 IN XI Main Clock Input
41 OUT XO Main Clock Output
42 IN SXI
Operation Mode Selecting
Input Signal
43 OUT PWR-SW
DVD Power Supply Control
Signal
44
IN SYS-
RESET
System Reset Signal
(Reset=”L”)
45 OUT REG-
CONT2
Power Regulator Control
Signal
46 OUT
REG-
CONT1
Power Regulator Control
Signal
47 OUT
VIDEO-
OUT
Composite Video Signal
Output
48
- GND Ground
49 IN VIDEO-IN Composite Video Signal Input
50 IN C-SYNC-
IN
Composite Synchronized
Pulse
51 -
VDD2 Power Supply
52 IN AFCC
Low Pass Filter Input Signal
For AFC
53 OUT AFCLPF
Low Pass Filter Output Signal
For AFC
54 OUT VIDEO-
MUTE
Video Mute Control Signal
55 OUT OUTPUT-
SELECT
Output Select (DVD=”L”/
VCR=”H”)
56 - NU Not Used
Pin
No.
IN/
OUT
Signal
Name
Function