Sony HCD-HX7 Service Manual - Page 57

Sony HCD-HX7 - Compact Disc Receiver Manual

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Page 57 highlights

HCD-HX3/HX5/HX7 Pin No. 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98, 99 100 Pin Name NO USE DVSS DO DATA CLOCK TXD1 RXD1 NO USE SDA SCL BCK DATA GATE DVCC REQ ST-REQ G-1, G-2 DVSS I/O Description O Not used - Ground terminal O Clear to send signal output to the system controller O Serial data output terminal Not used O Serial data transfer clock signal output terminal Not used O Serial data output to the system controller I Serial data input from the system controller O Not used I/O Two-way EEPROM IIC data bus terminal Not used I/O Two-way EEPROM IIC clock bus terminal Not used O Bit clock signal output to the CD-MP3 processor O Audio data output to the CD-MP3 processor O Gate signal output to the CD-MP3 processor - Power supply terminal (+3.3 V) I Request signal input from the CD-MP3 processor I Request signal input from the CD-MP3 processor I Function selection signal input terminal Fixed at "L" in this set - Ground terminal 57

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57
HCD-HX3/HX5/HX7
Pin No.
Pin Name
I/O
Description
82
NO USE
O
Not used
83
DVSS
-
Ground terminal
84
DO
O
Clear to send signal output to the system controller
85
DATA
O
Serial data output terminal
Not used
86
CLOCK
O
Serial data transfer clock signal output terminal
Not used
87
TXD1
O
Serial data output to the system controller
88
RXD1
I
Serial data input from the system controller
89
NO USE
O
Not used
90
SDA
I/O
Two-way EEPROM IIC data bus terminal
Not used
91
SCL
I/O
Two-way EEPROM IIC clock bus terminal
Not used
92
BCK
O
Bit clock signal output to the CD-MP3 processor
93
DATA
O
Audio data output to the CD-MP3 processor
94
GATE
O
Gate signal output to the CD-MP3 processor
95
DVCC
-
Power supply terminal (+3.3 V)
96
REQ
I
Request signal input from the CD-MP3 processor
97
ST-REQ
I
Request signal input from the CD-MP3 processor
98, 99
G-1, G-2
I
Function selection signal input terminal
Fixed at "L" in this set
100
DVSS
-
Ground terminal