Read Sony HCD-GRX80J / HCD-R880 / HCD-RXD8 / HCD-RXD8S / MHC-RXD8 / MHC-RXD8S Service Manual online
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Pin No.
Pin Name
I/O
Function
50
STEREO
I
Stereo detection for tuner
51
TUNED
I
Tuned detection for tuner
52
ST-CE
O
Tuner chip enable output
53
ST-DOUT
O
Tuner data output
54
ST-DIN
I
Tuner data input
55
ST-CLK
O
Tuned clock output
56
SENS
I
BD Condition signal input
57
HDLD
O
Mode hold signal output
58
XLT
O
CD latch signal output
59
XRST
O
CD reset signal output
60
DISC-SENS
I
Slit sensor of disc table input
61
T-SENS
I
CD table detection signal input
62
VCC
–
Power supply (+5V)
63
TBL-L
O
Table motor control output
64
VSS
–
Ground
65
TBL-R
O
Table motor control output
66
LOAD-OUT
O
67
LOAD-IN
O
68
ENC 3/UP-SW
I
69
ENC 2/DISC-LED
I
70
ENC 1
I
71
OUT-OPEN
O
Loading out detection signal output
72
B-TRG
O
73
A-TRG
O
74
CAP-M-COT2
O
Capstan motor control 1(-) signal output
75
CAP-M-COT1
O
Capstan motor control 2(-) signal output
76
CAP-M-H/L
O
Capstan motor H/L speed select signal output
77
AMS-IN
I
Connected to ground
78
TC-MUTE
O
TC mute ON/OFF selection output
79
R/PB/PAS
O
REC/PB/PASS selection output
80
NR-ON/OFF
O
NR ON/OFF signal output
81
REC-MUTE
O
REC mute ON/OFF selection output
82
BIAS
O
Bias ON/OFF selection output
83
EQ-H/N
O
Equalizer H/N select output
84
PB-A/B
O
PB Deck A/Deck B select output
85
ALC
O
ALC ON/OFF output
86
B-PLAY-SW
I
Deck B play detect
87
A-PLAY-SW
I
Deck A play detect
88
A-HALF
I
Deck A cassette detect
89
B-HALF
I
Deck B cassette detect
90
B-SHUT
I
B Deck reel pulse detector
91
A-SHUT
I
A Deck reel pulse detector
92
SOFT-TEST
O
Software test port
93, 94
KEY/CD-ADJ
I
CD adjust point port
95
MODEL IN
I
Version select signal input
96
AVSS
–
Ground
97
SPEC-IN
I
Version select signal input
98
VREF
I
Analog reference voltage input
99
AVCC
–
Analog power supply
100
TC-RELAY
O
REC/PB head selection output for IC602
Loading motor control signal output
Disc tray address detect encoder input
Trigger motor control output
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