Read Sony SCD-XB940 (serv.man2) Service Manual online
17
Pin No.
Pin Name
I/O
Description
106
VDD
—
Power supply terminal (+3.3V) (digital system)
107
VSS
—
Ground terminal (digital system)
108
X2/CLKIN
I
Clock input terminal (27MHz)
109
X1
O
Clock output terminal (27MHz)
110
VDD
—
Power supply terminal (+3.3V) (digital system)
111
VSS
—
Ground terminal (digital system)
112
VCCA6
—
Power supply terminal (+3.3V) (analog system)
113
LF
I/O
LF signal input/output terminal
114
GNDA6
—
Ground terminal (analog system)
115
VDD
—
Power supply terminal (+3.3V) (digital system)
116
VSS
—
Ground terminal (digital system)
117
HD7/HIO
I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
signal decoder (IC622), and ROM (IC632)
118 to 120
I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
signal decoder (IC622), and ROM (IC632)
121
VDD
—
Power supply terminal (+3.3V) (digital system)
122 to 125
I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
signal decoder (IC622), and ROM (IC632)
126
VSS
—
Ground terminal (digital system)
127
SRPRN
I
Parallel/serial mode select signal input terminal “L”: parallel mode (fixed at “L” in this set)
128
HINT/HTXD
O
Interrupt signal output to the expander (IC612)
HD6/HO6,
HD4/HO4
HD3/HO3,
HD0/HO0
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