Philips DVDR600VR/37, Руководство по обслуживанию

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1-16-1 E9480PIN
IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
IC228 ( SYSTEM CONTROL MICROPROCESOR )
“H”
≥
4.5V, “L”
≤
1.0V
Pin
No. IN/
OUT
Signal
Name
Function
Active
Level
1 IN CS
Communication of
Select with Sub Micro
Controller
L
2 IN
REC-
SAF-SW
Recording Safety SW
Detect (With Record
tab = ”L”/ With out
Record tab = ”H”)
H
3 IN T-REEL
Take Up Reel
Rotation Signal
PULSE
4 - N.U. Not Used -
5
IN
REMOTE-
VIDEO Remote Control
Sensor
L
6 IN S-CLK
Communication of
Clock with Sub Micro
Controller
H/L
7 IN SDA-IN
Communication of
Data from Sub Micro
Controller
H/L
8 OUT
SDA-
OUT
Communication of
Data to Sub Micro
Controller
H/L
9 OUT
DISPLAY-
ENA
FL Display Driver IC
Enable Control
Output Signal
L
10 OUT
DISPLAY-
DATA
FL Display Driver IC
Data Control Output
Signal
H/L
11 OUT
DISPLAY-
CLK
FL Display Driver IC
Clock Control Output
Signal
H/L
12
IN/
OUT
IIC-BUS-
SDA
IIC BUS Control Data H/L
13 OUT
IIC-BUS-
SCL
IIC BUS Control Clock
H/L
14 OUT YCA-SCL YCA IC Control Clock H/L
15 OUT YCA-SDA YCA IC Control Data H/L
16 OUT YCA-CS
YCA IC Control Chip
Select
H
17 - N.U. Not Used -
18 OUT RF-SW
Video Head Switching
Pulse
H/L
19 OUT
D-V
SYNC Dummy V-sync
Output
H/Hi-z
20 IN RESET
System Reset Signal
(Reset=”L”)
L
21 OUT
LM-FWD/
REV Loading Motor FWD/
REV Output
H/Z/L
22 OUT P-ON-L
Power On Signal to
Low
L
23 - N.U. Not Used -
24 OUT D-REC-H
Delayed Record
Signal
H
25 OUT
Hi-Fi-H-
SW HiFi Audio Head
Switching Pulse
H/L
26 OUT
A-MUTE-
H Audio Mute Control
Signal (Mute = “H”)
H
27 OUT C-F/R
Capstan Motor FWD/
REV Control Signal
(FWD=”L”/REV=”H”)
H/L
28 OUT C-CONT
Capstan Motor
Control Signal
PWM
29 OUT D-CONT
Drum Motor Control
Signal
PWM
30 - N.U. Not Used -
31 - VDD VDD (AL+5V) -
32 OUT OSCO
Main Clock Output
14.31818MHz
-
33 IN OSCI
Main Clock Input
14.31818MHz
-
34 - VSS VSS (GND)
35 - N.U. Not Used -
36 - N.U. Not Used -
37 IN SXI
Operation Mode
Selecting Input Signal
-
38 OUT
VIDEO-
OUT Composite Video
Signal Output
-
39 - Vss2 Vss2 (GND) -
40 IN
VIDEO-
IN Composite Video
Signal Input
-
41 IN C-SYNC
Composite
Synchronized Pulse
PULSE
42 - VDD2 VDD2 (AL+5V) -
43 IN AFCC
Low Path Filter Input
Signal For AFC
-
44 OUT AFCLPF
Low Path Filter Output
Signal For AFC
-
45 OUT INSEL2 Input Select H/L
46 - N.U. Not Used -
Pin
No. IN/
OUT
Signal
Name
Function
Active
Level