55
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
I
I
I
I
I
I
O
O
O
O
I
—
I
—
I
I
I
I
I
I
O
I
O
O
O
O
O
O
O
I
O
I
I
O
O
O
O
O
O
O
O
O
O
O
I
—
I
—
—
O
Description
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
A deck trigger control signal output.H=ON, L-OFF
B deck trigger control signal output.H=ON, L-OFF
Capstan motor High/Low speed control signal output.
Capstan motor REV/FWD/STOP control signal output.H=REV, L=FWD/STOP
Not used.
POWER SUPPLY (+5V)
Not used.
Ground.
Not used.
Not used.
A deck half detect signal input.
A deck play detect signal input.
B deck play detect signal input.
AMS signal input. L=ON,H=OFF
Tape deck line mute ON/OFF signal output. H=ON, L=OFF
REC/PB/PASS select signal input.
DOLBY NR ON/OFF signal output. H=ON, L=OFF
REC mute ON/OFF signal output. L=ON, H=OFF
BIAS ON/OFF signal output.H=ON, L=OFF
EQ High/Normal select signal output. H=High, L=Normal
Playback deckA/B select signal output. H=deckB, L=deckA
ALC ON/OFF signal output. L=ON, H=OFF
Tape deck relay ON/OFF signal output. H=ON, L=OFF
Not used.
STANDBY relay control signal output.
Speaker protect signal input. L=ON, H=OFF
Not used.
Line mute signal output. L=ON, H=OFF
CD-POWER ON/OFF signal output. H=ON, L=OFF
Not used.
Speaker terminal relay control signal output. H=ON, L=OFF
POWER ON/OFF signal output. H=ON, L=OFF
Not used.
A deck reel pulse detect signal output.
B deck reel pulse detect signal output.
Not used.
B deck half detect signal input.
KEY (for jig) / CD adjust.
MODEL input.
Analog ground.
Version select signal input.
Analog Reference Voltage
Analog Power Supply
Power amplifier mute ON/OFF signal output. H=ON, L=OFF
Pin Name
N.C
N.C
N.C
N.C
N.C
N.C
A TRIG
B TRIG
CAPM-H/L
CAPM-CONT
N.C
VCC
N.C
VSS
N.C
N.C
A HALF
A PLAY
B PLAY
AMS-IN
TC-MUTE
R/PB/PAS
NR-ON/OFF
REC-MUTE
BAIS
EQ-H/N
PB-A/B
ALC
TC-RELAY
N.C
STBY-RELAY
PROTECT
DBFB-ON/OFF
LINE-MUTE
CD-POWER
F-SHIFT
RELAY-H
POWER
N.C
A SHUT
B SHUT
SOFT-TEST
B HALF
KEY/CD ADJ
MODEL-IN
AVSS
SPEC-IN
VREF
AVCC
STK-MUTE
Summary of Contents for HCD-VX77
Page 39: ...HCD VX77 VX77J 39 39 7 14 SCHEMATIC DIAGRAM POWER AMP SECTION ...
Page 43: ...HCD VX77 VX77J 43 43 7 18 SCHEMATIC DIAGRAM LEAF SW SECTION ...
Page 45: ...HCD VX77 VX77J 45 45 7 20 SCHEMATIC DIAGRAM DRIVER SECTION See page 58 for IC Block Diagrams ...
Page 47: ...HCD VX77 VX77J 47 47 7 22 SCHEMATIC DIAGRAM TRANS SECTION ...
