Read Sony XAV-7W (serv.man2) Service Manual online
57
XAV-7W
Pin No.
Pin Name
I/O
Description
65
VSS
—
Ground terminal
66
OSDCCE
O
Chip enable signal output to the on screen display controller “L” active
67, 68
VSS
—
Ground terminal
69
LCD INH
O
Blank indicate control signal output to the liquid crystal display driver “H”: display on
70
LCD CE
O
Chip enable signal output to the liquid crystal display driver “H” active
71, 72
NCO
O
Not used
73
RGB COL
O
RGB color control signal output to the connection box
74
NCO
O
Not used
75
RGB HUE
O
RGB hue control signal output to the connection box
74
NCO
O
Not used
77
NP SEL
O
NTSC/PAL selection signal output to the connection box and liquid crystal display driver (for
monitor) “L”: PAL, “H”: NTSC
monitor) “L”: PAL, “H”: NTSC
78
NCO
O
Not used
79
FL W
O
Flash memory data write control signal output
80
FWE
I
Flash memory data write enable signal input
81
SYSRST
I
System reset signal input from the master controller, reset signal generator and reset switch
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
82
NMI
I
Non maskable interrupt signal input terminal Not used
83
STBY
I
Hardware standby signal input terminal “L”: hardware standby mode Not used
84
VCC
—
Power supply terminal (+5V)
85
XTAL
O
System clock output terminal (18.432 MHz)
86
EXTAL
I
System clock input terminal (18.432 MHz)
87
VSS
—
Ground terminal
88
NCO
O
Not used
89
VCC
—
Power supply terminal (+5V)
90 to 94
NCO
O
Not used
95
SA CLK
O
Spectrum analyzer display serial data transfer clock signal output to the electrical volume
96
SA ENIN
I
Enable signal input for spectrum analyzer display from the master controller “H” active
97
UNISO
O
Serial data output to the SONY bus interface
98
UNISI
I
Serial data input from the SONY bus interface
99, 100
VSS
—
Ground terminal
101
UNISCK
I
Serial clock signal input from the master controller
102
NCO
O
Not used
103
AVCC
—
Power supply terminal (+5V) (for A/D, D/A converter)
104
VREF
I
Reference voltage (+5V) input terminal (for A/D, D/A converter)
105
SA DATA
I
Spectrum analyzer display serial data input from the electrical volume
106 to 110
NCO
O
Not used
111
BRIGHT
O
Monitor bright control signal output to the video interface (D/A output)
112
NCO
O
Not used
113
AVSS
—
Ground terminal (for A/D, D/A converter)
114
VSS
—
Ground terminal
115
NCO
O
Not used
116
VSYNC SSEP
I
Vertical sync signal input from the connection box
117
HSYNC SSEP
I
Horizontal sync signal input from the connection box
118
NCO
O
Not used
119
VSYNC MON
I
Vertical sync signal input from the liquid crystal display driver (for monitor)
120
HSYNC MON
I
Horizontal sync signal input from the liquid crystal display driver (for monitor)
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