Read Sony HCD-GX25 / MHC-GX25 Service Manual online
18
HCD-GX25
Pin No.
Pin Name
I/O
Pin Description
73
CD VDD
—
CD power supply pin
74
TUNER TUNED
I
Tuner tuning signal input from the TU701 (tuner pack)
75
TUNER STEREO
I
Tuner stereo signal input from the TU701 (tuner pack)
76
CD DRF
I
CD DRF signal input from the IC721 (LC78646)
77
CD WRQ
I
CD WRQ signal input from the IC721 (LC78646)
78
CD NUMBER SENSOR
I
CD number sensor signal input
79
TAPE AMS IN
I
Tape AMS signal input
80
VR ENCODER A
I
VR encoder (VR601) signal input
81
VR ENCODER B
I
VR encoder (VR601) signal input
82
TAPE REEL A
I
Tape reel A signal input
83
TAPE REEL B
I
Tape reel B signal input
84
MODE SW IN
I
Mode switch signal input
85
STREAM 1 LED
O
Stream LED (LED611) drive signal output
86
CD MUTE
O
CD mute signal output
87
STREAM 3 LED
O
Not used in this set. (Open)
88
MECHA VCC
O
Mechanism power control signal output “L”: ON, “H”: OFF
89
VSS2
—
Ground pin
90
VDD2
—
Power supply pin (+3.3 V)
91
TAPE SOL A
O
Tape SOL A control signal output “L”: ON, “H”: OFF
92
TAPE SOL B
O
Tape SOL B control signal output “L”: ON, “H”: OFF
93
POWER LED
O
POWER LED (LED614) drive signal output
94
POWER RELAY
O
Power relay signal output
95
LC72121/M61529
O
Serial data signal output
/BU2099FV DO
96
LC72121 DI
I
Serial data signal input
97
LC72121/BU2099FV CLK
O
Serial clock signal output
98
LC78646/LC78684 DO
O
Serial data signal output
99
LC78646/LC78684 DI
I
Serial data signal input
100
LC78646/LC78684 CLK
O
Serial clock signal output
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