Ic Pin Function Descriptions - FUNAI DCVR-4800 Service Manual

IC PIN FUNCTION DESCRIPTIONS

[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
Pin IN/ Signal
No. OUT Name
Input Signal from
1 IN
SC2-IN
Pin 8 of SCART2
Video Head
PG- Switching Pulse
2 IN
DELAY Signal Adjusted
Voltage
P-ON Power
POW-
3 IN Detection Input
SAF
Signal
Tape End Position
4 IN END-S
Detect Signal
Automatic Frequency
5 IN AFC
Control Signal
Video Envelope
6 IN
V-ENV
Comparator Signal
Key Scan Input
7 IN
KEY-1
Signal 1
Key Scan Input
8 IN KEY-2
Signal 2
Deck Mode Position
9 IN LD-SW
Detector Signal
Tape Start Position
10 IN
ST-S
Detector Signal
11 - NU Not Used
12 -
NU Not Used
13 OUT D-V- Dummy V-sync
SYNC Output
REMOTE Remote
14 IN
-VIDEO Control Sensor
Color Phase Rotary
15 OUT C-ROTA
Changeover Signal
Video Head Amp
16 OUT H-A-SW
Switching Pulse
H-A- Head Amp
17 IN
COMP Comparator Signal
Video Head
18 OUT RF-SW
Switching Pulse
19 OUT Hi-Fi-H- HiFi Audio Head
SW Switching Pulse
20 - NU Not Used
21 OUT DVD- DVD Power
POWER Control Signal
22 - NU Not Used
"H" 4.5V, "L" 1.0V
Active
Function
Level
A/D
A/D
A/D
A/D
A/D
A/D
A/D
A/D
A/D
A/D
-
-
H/Hi-z
L
H/L
H/L
H/L
H/L
H/L
-
H
-
1-13-1
Pin IN/ Signal
No. OUT Name
POWER- "POWER" LED
23 OUT
LED Signal Output
24 - NU Not Used
25 OUT TIMER- "TIMER" LED Signal
LED Output
26 OUT REC-LED "REC" LED Signal
Output
27 -
NU Not Used
28 - NU Not Used
29 OUT DVD-LED "DVD" LED Signal
Output
30 OUT VCR-LED "VCR" LED Signal
Output
Recording Safety SW
REC-SAF- Detect (With Record
31 IN
SW tab="L"/ With out
Record tab="H")
A-MODE Hi-Fi Tape Detection
32 IN
Signal
33 OUT D-REC-H Delayed Record
Signal
System Reset
34 IN RESET
Signal (Reset="L")
35 IN XCin Sub Clock
36 OUT XCOUT
Sub Clock
37 -
Vcc Vcc
38 IN Xin Main Clock Input
39 OUT Xout Main Clock Input
40 -
Vss Vss(GND)
41 OUT INPUT DVD/AV3 Input
SELECT Select
DVD- SCART 8Pin DVD
42 IN
8PIN-IN Input Control Signal
43 IN CLKSEL Clock Select (GND)
Clock Input
44 IN OSCin
for letter size
Clock Output for letter
45 OUT OSCout
size
46 - NU Not Used
47 -
NU Not Used
FSC-IN
48 IN 4.43MHz Clock Input
[4.43MHz]
49 - OSDVss OSDVss
OSD-V-IN OSD Video Signal
50 IN
Input
51 - NU Not Used
Active
Function
Level
H/L
-
H/L
H/L
-
-
H/L
H/L
H/L
L
H
L
-
-
-
-
-
-
H/L
H/L
L
-
-
-
-
-
-
-
-
H9512PIN