Read Sony HCD-GX750 / HCD-RG551 / HCD-RX550 / MHC-GX750 / MHC-RG551S Service Manual online
26
HCD-GX750/RG551/RX550
Pin No.
Pin Name
I/O
Pin Description
79
STREAM-LED4/MOTOR
O
Illumination LED control signal output
80
STREAM-LED3/MP3-STB
O
Illumination LED control signal output
81
STREAM-LED2
O
Illumination LED control signal output
82
STREAM-LED1
O
Illumination LED control signal output
83
I-LC72121 DI
I
Data signal input from tuner
84
O-LC72121 CE
O
Chip select signal output to tuner
85
O-LC72121/BU2099FV DO
O
Data signal input from tuner and SP driver
86
O-LC72121/BU2099FV CLK
O
Clock signal output to tuner and SP driver
87
O-BU2099FV LCH
O
LCH signal output to SP driver
88
O-BD3401 CLK
O
Clock signal output to sound processor
89
VSS2
—
Ground pin
90
VDD2
—
Power supply pin (+3.5 V)
91
O-BD3401 DATA
O
Data signal output to sound processor
92
O-XTCN
O
CD XTCN signal output
93
O-XRES (RESET)
O
CD reset signal output
94
O-XLT (CD-LAT)
O
CD latch signal output
95
O-CD-DATA
O
CD data signal output
96
I-SENS
I
CD SENS signal input
97
O-CD-CLK
O
CD clock signal output
98
O-MP3-DO
O
MP3 data signal output to CD digital processor
99
I-MP3-DI
I
MP3 data signal input from CD digital processor
100
O-MP3-CLK
O
MP3 clock signal output to CD digital processor
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