Ic Pin Function Descriptions - Philips DVDR600VR/37 Service Manual

IC PIN FUNCTION DESCRIPTIONS

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