5-4
5-5. SERVO/SYSTEM/TIMER/TUNER CONTROL MICROPROCESSOR PIN FUNCTION (MA-323 BOARD IC161)
Pin No.
Pin Name
I/O
Function
1
F MONO
O
TUNER Audio select signal
2
AN GND
–
Analog Ground
3
APC ERROR
I
APC ERROR Voltage input
4
DMS UP
I
Click Shuttle fowared/reverse signal input (DMS models only)
5
FUNC. KEY2
I
Function Key Analog voltage input
6
TU AFT
I
AFT (Auto fine tuning signal input)
7
FUNC. KEY1
I
Function Key Analog voltage input
8
POWER FAIL
I
Power failure detect signal input
9
DMS DOWN
I
Click Shuttle fowared/reverse signal input (DMS models only)
10
DEST
I
Destination set
11
S SENS
I
Supply end sensor signal input
12
T SENS
I
Take up end sensor signal input
13
VIDEO RF
I
Video RF Envelop input
14
AU RF
I
Hifi Audio Envelop input
15
AN 5V
–
Power supply
16
RESET
I
RESET signal input
17
3.58/4.43
O
NTSC color freq. judge signal
18
PAL
O
“H”: PAL (Video block control signal)
19
SAP BILL OUT
I
MAIN/SAP judge input
20
STEREO OUT
I
STEREO/MONO judge input
21
MAIN/SAP
O
MAIN/SAP select signal
22
VCC
–
Power supply
23
AF SWP
O
AF switching pulse output
24
RF SWP
O
RF switching pulse output
25
CAP VS
O
Capstan error signal output
26
DRUM VS
O
Drum motor error signal output
27
QVD
O
Quasi VD pulse output
28
N.C.
–
Not used
29
H. AMPSW
O
“H”: A-DUB mode (CTL Amp. Gain. Coutrol)
30
N.C.
–
Not used
31
CTL (+)
I/O
CTL head signal Input/Output (rec mode)
32
CTL (–)
I/O
CTL head signal Input/Output (rec mode)
33
VSS (SERVO)
–
Ground
34
CTL-AMP1
I
CTL Amp. Coutrol (Gain set)
35
CTL-AMP2
I
CTL Amp. Coutrol (Gain set)
36
CTL-AMP3
I
CTL Amp. Coutrol (Gain set)
37
CTL-AMP OUT
O
CTL Amp. Output (For Check)
38
DRUM FG
I
Drum FG Schmitt amp. input
39
DRUM PG
I
Drum PG Schmitt amp. input
40
CAP FG
I
Capstan FG Schmitt input
41
VCC (SERVO)
–
Power supply
42
VCC(OSD)
–
Power supply
43
CV IN
I
Composite Video signal input
44
VREF
I
Reference bias and clamp bias power pin
45
CV OUT
O
Composite Video signal output
46
N.C.
–
Not used
47
AFC LPF
I
AFC LPF pin
48
AFC OSC
I
AFC oscillator pin
49
VSS (OSD)
–
Ground
50
DOSC-IN
I
OSD dot clock oscillator (input)
Pin No.
Pin Name
I/O
Function
51
DOSC-OUT
O
OSD dot clock oscillator (output)
52
4FSC-OUT
O
OSD 4fsc oscillator terminal (output)
53
4FSC-IN
I
OSD 4fsc oscillator terminal (input)
54
CSYNC
I
Composite Sync signal input
55
REC PRF
I
Erasing protection tab. Cassette in detection
56
IIC DATA
O
EEP ROM, Hifi IC, Tuner/Serial communication signal (IIC DATA)
57
IIC CLOCK
O
EEP ROM, Hifi IC, Tuner/Serial communication signal (IIC CLOCK)
58
DRUM QR
O
Drum motor step driving
59
AF REC
O
“H” output when Hifi audio REC
60
AF REC P
O
“L” output when Hifi audio REC pause
61
TV/VTR
O
RF output control
62
SSB CLOCK (VIDEO)
O
Video, Video Amp. Serial communication signal (CLOCK)
63
SSB DATA (VIDEO)
O
Video, Video Amp. Serial communication signal (DATA)
64
BLUE BACK
O
OSD block control signal output
65
APC PWM
O
APC PWN signal
66
CAP TRQ PWM
O
Capstan TRQ PWN output
67
TA MUTE
O
“H” output when Tuner mute
68
TEST
I
Fixed to Ground
69
32kHz (IN)
I
Timer Clock terminal (32kHz)
70
32kHz (OUT)
O
Timer Clock terminal (32kHz)
71
VSS
–
Ground
72
10MHz (IN)
I
System clock terminal (10MHz)
73
10MHz (OUT)
O
System clock terminal (10MHz)
74
END LED
O
Top/End LED ON/OFF control
75
REC P
O
“L” output when REC pause mode
76
IN SEL 1
O
LINE-INPUT selection control signal-1
77
IN SEL 2
O
LINE-INPUT selection control signal-2
78
OSD SEL
–
Not used
79
A MUTE
O
“H” Audio mute signal outout
80
WRITE CONT
O
EEPROM write timing control
81
EP. LP
O
“H” : “LP/EP” mode
82
REMOCON
I
Remote control signal (SIRCS) input
83
CAM
O
CAM motor control
84
MODE 1
I
Mechanism section CAM encoder input (data1)
85
MODE 2
I
Mechanism section CAM encoder input (data2)
86
MODE 3
I
Mechanism section CAM encoder input (data3)
87
MODE 4
I
Mechanism section CAM encoder input (data4)
88
T REEL
I
T side reel FG input
89
S REEL
I
S side reel FG input
90
FLD CS
O
FIP driver chip select signal output
91
FUll ERASE
O
Full erase head on/off control signal
92
P CONT
O
Power Supply control signal
93
CAP RVS
O
Capstan reverse control signal H when Reverse
94
CAP QR
O
Capstan step driving
95
S CLOCK 0
O
Serial communication signal (Serial clock)
96
S IN 0
I
Serial communication signal (Data input)
97
S OUT 0
O
Serial communication signal (Data output)
98
PLL CLOCK
O
TUNER PLL clock
99
TU ENABLE
O
TUNER PLL signal chip select
100
PLL DATA
O
TUNER PLL data
Summary of Contents for SLV-ED1PL
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Page 14: ...1 10 1 10 E ...
Page 19: ...SLV ED1 ED4 ED7 ED8 3 1 3 2 SECTION 3 BLOCK DIAGRAM 3 1 OVERALL BLOCK DIAGRAM ...
Page 23: ...SLV ED1 ED4 ED7 ED8 3 10 3 9 3 5 AUDIO BLOCK DIAGRAM ...
Page 24: ...SLV ED1 ED4 ED7 ED8 3 12 3 6 TUNER BLOCK DIAGRAM 3 11 740m Vp p 24 576 MHz IC1 REC PB ...
Page 25: ...SLV ED1 ED4 ED7 ED8 3 14 3 13 3 7 MODE CONTROL BLOCK DIAGRAM ...
Page 26: ...SLV ED1 ED4 ED7 ED8 3 16 E 3 8 POWER BLOCK DIAGRAM 3 15 ...
Page 28: ...SLV ED1 ED4 ED7 ED8 4 3 4 4 4 1 FRAME SCHEMATIC DIAGRAM FRAME ...
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