1-11-1
HC341PIN
IC PIN FUNCTION DESCRIPTIONS
IC501( SERVO / SYSTEM CONTROL IC )
“H”
≥
4.5V, “L”
≤
1.0V
Pin
No.
IN/
OUT
Signal
Name
Function
Active
Level
1
IN
SC2-IN
Input Signal from
Pin 8 of SCART2
L/Hi-z
2
IN
PG-
DELAY
Video Head
Switching Pulse
Signal Adjusted
Voltage
A/D
3
IN
POW-
SAF
P-ON Power
Detection Input
Signal
A/D
4
IN
END-S
Tape End Position
Detect Signal
A/D
5
IN
AFC
Automatic Frequency
Control Signal
A/D
6
IN
V-ENV
Video Envelope
Comparator Signal
A/D
7
IN
KEY-1
Key Scan Input
Signal 1
A/D
8
IN
KEY-2
Key Scan Input
Signal 2
A/D
9
IN
LD-SW
Deck Mode Position
Detector Signal
A/D
10
IN
ST-S
Tape Start Position
Detector Signal
A/D
11
-
N.U.
Not Used
-
12
-
N.U.
Not Used
-
13
OUT
D-V-
SYNC
Dummy V-sync
Output
H/Hi-z
14
IN
REMOCO
N-IN
Remote
Control Sensor
L
15
OUT C-ROTA
Color Phase Rotary
Changeover SIgnal
H/L
16
OUT H-A-SW
Video Head Amp
Switching Pulse
H/L
17
IN
H-A-
COMP
Head Amp
Comparator Signal
H/L
18
OUT RF-SW
Video Head
Switching Pulse
H/L
19
-
N.U.
Not Used
-
20
-
N.U.
Not Used
-
21
-
N.U.
Not Used
-
22
-
N.U.
Not Used
-
23
OUT
POWER
LED
“STANDBY” LED Sig-
nal Output
H/L
24
OUT CAS LED
“TAPE IN” LED Sig-
nal Output
H/L
25
OUT
TIMER
LED
“TIMER” LED Signal
Output
H/L
26
OUT REC LED
“REC” LED Signal
Output
H/L
27
-
N.U.
Not Used
-
28
-
N.U.
Not Used
-
29
OUT
AUDIO-
SW1
Audio Input/Output
Switching Control
Signal 1 (Mono)
Z/L
30
OUT
AUDIO-
SW2
Audio Input/Output
Switching Control
Signal 2 (Mono)
Z/L
31
IN
REC-SAF
Recording Safety SW
Detect (With Record
tab="L"/With out
Record tab="H")
H
32
-
N.U.
Not Used
-
33
-
N.U.
Not Used
-
34
IN
RESET
System Reset
Signal (Reset=”L”)
L
35
IN
XC-IN
Sub Clock
-
36
OUT XC-OUT
Sub Clock
-
37
-
Vcc
Vcc
-
38
IN
X-IN
Main Clock Input
-
39
OUT X-OUT
Main Clock Input
-
40
-
Vss
Vss(GND)
-
41
-
N.U.
Not Used
-
42
-
N.U.
Not Used
-
43
IN
CLKSEL
Clock Select (GND)
L
44
IN
OSC
IN
Clock Input
for letter size
-
45
OUT OSC
OUT
Clock Output for letter
size
-
46
-
N.U.
Not Used
-
47
-
N.U.
Not Used
-
48
IN
FSC-IN
[4.43MHz]
4.43MHz Clock Input
-
49
-
OSDVss
OSDVss
-
50
IN
VIDEO-IN Video Signal Input
-
51
-
N.U.
Not Used
-
52
OUT
VIDEO-
OUT
Video Signal Output
-
53
-
OSDVcc
OSDVcc
-
54
-
HLF
LPF Connected
Terminal (Slicer)
-
Pin
No.
IN/
OUT
Signal
Name
Function
Active
Level
Содержание VCR425
Страница 22: ...1 8 6 1 8 7 1 8 8 HC341SCM2 Main 2 4 Schematic Diagram...
Страница 23: ...1 8 9 1 8 10 1 8 11 HC341SCM3 Main 3 4 Schematic Diagram...
Страница 25: ...Jack Schematic Diagram 1 8 15 1 8 16 HC341SCJ...
Страница 26: ...1 8 17 1 8 18 Function Schematic Diagram HC341SCF...
Страница 29: ...Jack CBA Top View Jack CBA Bottom View BHC400F01018 E 1 8 25 1 8 26...
Страница 30: ...Function CBA Top View Function CBA Bottom View 1 8 27 1 8 28 BHC400F01018 B...
Страница 49: ...2 4 6 U25PALDA S 12 19 Cap Belt Fig DM11 Fig DM12 20 C 1 21...
Страница 55: ...3 1 1 HC341FEX A1X EXPLODED VIEWS Front Panel...
Страница 57: ...3 1 3 HC341PEX Some Ref Numbers are not in sequence X4 S1 X2 X20A X3 X20B Unit S3 X1 S2 S2 A14 Packing...
Страница 74: ...VCR425 HC341ED...
