Ic Pin Function Descriptions - Philips DVD757VR /00 Service Manual

[ VCR Section ]
Comparison Chart of Models and Marks
Model
DVD757VR/00
DVD757VR/05
DVD757VR/02
IC501( SERVO / SYSTEM CONTROL IC )
Pin IN/ Signal
Mark
No. OUT Name
1 IN SC2-IN
2 IN PG-Delay
IN POW-
3
SAF
4 IN END-S
5 IN AFC
6 IN V-ENV
7 IN KEY-1
8 IN KEY-2
9 IN LD-SW
10 IN ST-S
11 - NU
12 -
NU
OUT D-V-
13
SYNC
IN REMOTE
14
-VIDEO
15 OUT C-ROTA
16 OUT H-A-SW
IN H-A-
17
COMP

IC PIN FUNCTION DESCRIPTIONS

Mark
A
B
C
"H" ≥ 4.5V, "L" ≤ 1.0V
Function
Input Signal from
Pin 8 of SCART2
Video Head
Switching Pulse
Signal Adjusted
Voltage
P-ON Power
Detection Input
Signal
Tape End Position
Detect Signal
Automatic
Frequency Control
Signal
Video Envelope
Comparator Signal
Key Scan Input
Signal 1
Key Scan Input
Signal 2
Deck Mode
Position Detector
Signal
Tape Start Position
Detector Signal
Not Used
Not Used
Dummy V-sync
Output
Remote
Control Sensor
Color Phase Rotary
Changeover SIgnal
Video Head Amp
Switching Pulse
Head Amp
Comparator Signal
Pin
Mark
No.
18
19
20
21
22
23
Active
Level
24
A/D
25
A/D
26
27
A/D
28
A/D
29
30
A/D
A/D
31
A/D
32
A/D
33
A/D
34
35
A/D
36
-
37
-
38
H/Hi-
z 39
40
L
41
H/L
42
H/L
43
H/L
44
1-15-1
IN/ Signal
OUT Name
Video Head
OUT RF-SW
Switching Pulse
OUT Hi-Fi-H- HiFi Audio Head
SW Switching Pulse
VPS/PDC Data
IN DAVN-L
Receive = "L"
OUT DVD- DVD Power
POWER Control Signal
-
NU Not Used
POWER- "POWER" LED
OUT
LED Signal Output
OUT FIL-ON/ Filament ON/OFF
OFF Control Signal
TIMER- "TIMER" LED Sig-
OUT
LED nal Output
"REC" LED Signal
OUT REC-LED
Output
-
NU Not Used
OUT DVD
DVD Play at High
PLAY
OUT DVD-LED "DVD" LED Signal
Output
OUT VCR-LED "VCR" LED Signal
Output
Recording Safety
SW Detect (With
IN REC-SAF-
Record tab="L"/
SW
With out Record
tab="H")
IN A-MODE Hi-Fi Tape
Detection Signal
OUT D-REC-H Delayed Record
Signal
System Reset
IN RESET
Signal (Reset="L")
IN XCin Sub Clock
OUT XCOUT
Sub Clock
-
Vcc Vcc
IN Xin Main Clock Input
OUT Xout
Main Clock Input
- Vss Vss(GND)
INPUT Input Selector
OUT
SELECT Control Signal
SCART 8Pin DVD
IN DVD-
Input Control
8PIN-IN
Signal
IN CLKSEL Clock Select (GND)
Clock Input
IN OSCin
for letter size
Active
Function
Level
H/L
H/L
L
H
-
H/L
H/L
H/L
H/L
-
H
H/L
H/L
H/L
L
H
L
-
-
-
-
-
-
H/L
H/L
L
-
H9520PIN