7-5-1. IC501 Main Microcomputer Terminal Function
Fig. 7-5-2
45
46
47
48
49
50
COMPOSITE SYNC INPUT(V SYNC DETECT)
44
43
42
41
40
31
32
33
34
35
39
38
37
36
66
67
68
69
65
64
63
62
61
70
71
72
73
74
80
79
78
77
76
75
60
51
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53
54
55
59
58
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56
CAPSTAN AMPLIFIED FG.B INPUT
TAPE END SENSOR INPUT
REMOTE CONTROL SIGNAL INPUT
CYLINDER FG / PG INPUT
PB CTL INPUT
REC CTL OUTPUT
ROMOTE CONTROL SIGNAL OUTPUT FOR CABLE BOX CONTROL
HEAD AMP OUTPUT SWITCH
COLOR ROTORY
VIDEO IC / YCS 6 TIMING CONTROL
LUMINANCE CONTROL SIGNAL OUTPUT
VIDEO / AUDIO HEAD SWITCH CONTROL
VIDEO / AUDIO RECORD SIGNAL(H)
CYLINDER MOTOR CONTROL OUTPUT
CAPSTAN MOTOR CONTROL OUTPUT
VIDEO SCREEN CONTROL OUTPUT
PSEUDO V / PSEUDO H
C.SYNC IN
TEST PIN
LOADING MOTOR CONTROL (–)
25
24
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22
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27
28
29
30
21
6
5
4
3
2
1
7
8
9
10
11
20
19
18
17
16
12
13
14
15
TEST2
TEST PIN
NC
REC INH
START SENSOR
CTL AMP GAIN
CTL SCHMITT
CAP F / R
CAP Vcc MID
CAP Vcc Hi
INPUT SEL 2
INPUT SEL 1
COLOR KILLER
AUDIO MUTE
OSD RESET
OSD SIO STROBE
OSD SIO CLK
SUB uP RESET
SUB SIO STROBE
SP(L) LP(M) EP(M)
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92
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97
98
99
100
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90
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87
TEST3(ALE)
81
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85
86
LOADING MOTOR CONTROL (+)
TEST1
TEST PIN
POWER GOOD DETECTION
XT2
32kHz FREQUENCY
NC
XT1
32kHz FREQUENCY
ECOLOGY POWER MODE
RESET
RESET INPUT
VIDEO / AUDIO PLAYBACK SIGNAL (L)
TEST
TEST PIN
X1
16MHz OSCILLATOR PORT
X2
16MHz OSCILLATOR PORT
D.GND1
CLK
SU REEL
SUPPLY REEL PULSE
TU REEL
TAKE UP REEL PULSE
SUB SIO CLK
CLOCK OUTPUT SIGNAL
SUB SIO DATA OUT
DATA OUTPUT SIGNAL
SUB SIO DATA IN
DATA INPUT SIGNAL
ADREF
ANALOG DIGITAL REFERENCE
ADGND
ANALOG DIGITAL GROUND
CAM C
CAM B
CAM A
CAM SWITCH A INPUT
VIDEO ENV DET
VIDEO ENVELOPE A / D INPUT FOR AUTO TRACKING
HIFI ENV DET
AUDIO ENVELOPE A / D INPUT FOR AUTO TRACKING
AFT IN
AUTO FINE TUNING LOCK DETECTION
S–IN2
SVHS CABLE 2 (REAR) DETECT
S–IN1
SVHS CABLE 1 (FRONT) DETECT
SENSOR CTL
TAPE LED ON / OFF CONTROL SIGNAL
SVHS I / O
SVHS & VHS STATUS I / O (L:VHS, H:SVHS)
IIC BUS CLK
IIC BUS TRANSFER CLK
IIC BUS DATA
IIC BUS TRANSFER DATA
COMP IN
COMPARISON SIGNAL INPUT FOR PREAMP
TAPE SPEED SELECTION FOR VIDEO & CONVENTIONAL AUDIO
CHIP SELECT SIGNAL
RESET SIGNAL
CLOCK OUTPUT SIGNAL
DATA OUTPUT SIGNAL
CHIP SELECT SIGNAL
RESET SIGNAL
AUDIO MUTE CONTROL FOR HIFI SIGNAL
COLOR MUTE CONTROL OUTPUT (1L)
VIDEO INPUT SELECTION
(HL TUNER, LL L1, LH L2)
CAPSTAN MOTOR Vcc CONTROL (Hi : 24V)
CAPSTAN MOTOR DIRECTION CONTROL (L:FORWARD, H:REVERSE)
CTL OUT SCHMITT LEVEL TRIGGER SIGNAL OUTPUT
CTL AMP GAIN SWITCH
TAPE START SENSOR INPUT
CASSETTE IN / REC INHIBIT SWITCH INPUT
NO CONNECTION
C.FGA IN
C.FGB IN
END
REMOTE IN
D.PG / FG
PB CTL IN
REC CTL OUT
RMT OUT
HA SW
COLOR ROTOR
VIDEO SW.P
Y SW
V / A SW.P
REC(H)
D.PWM
C.PWM
OSD FULL
PV / PH
D.VCC1
NOT USED
NOT USED
NOT USED
SVHS CASSETTE DETECT SW
NOT USED
CAPSTAN AMPLIFIED FG.A INPUT
OSD SIO DATA
CAPSTAN MOTOR Vcc CONTROL (Hi : 14V)
CAM SWITCH B INPUT
CAM SWITCH C INPUT
HiFi DET IN
NC
SVHS CASS DET
NC
NC
NC
PBL
ECO MODE
NC
POWER GOOD
LOAD –
LOAD +
TMP93CU76F–1A29
OVER REC
POWER ON
TV / VCR
NC
NC
NC
NC
CARRIER REC ON
NC
NC
NC
SVHS ET
NOT USED
NOT USED
SYNC DET
NC
C SW
GND
REC CURRENT CONTROL OUTPUT
HiFi DETECT FOR HiFi DISPLAY AND AUTOTRACKING
POWER ON / OFF
TV / VCR SWITCH
NO CONNECTION
CARRIER RECORD MUTE CONTROL
NO CONNECTION
SVHS OR VHS TAPE STATUS OUTPUT
NO CONNECTION
NO CONNECTION
SYNC DETECTION OUTPUT (L)
NO CONNECTION
CHROMINANCE CONTROL SIGNAL OUTPUT
NO CONNECTION
NO CONNECTION
NO CONNECTION
NO CONNECTION
NO CONNECTION
