Sony MDX-C8970 Service Manual page 62

Pin No. Pin Name
63 SP-SCK
64 LCDCLK
65 VSS
66 LCDINH
67, 68 VSS
69 LCDCE0
70 LCDCE1
71 P63
72 to 78 P27 to P21
79 FL W
80 FWE (L)
81 RESET
82 NMI (H)
83 STBY (H)
84 VCC
85 XTAL
86 EXTAL
87 VSS
88 PF7
89 VCC
90 to 96 PF6 to PF0
97 UNI-SO
98 UNI-SO
99, 100 VSS
101 UNI-SCK
102 P53/ADTRG
103 AVCC
104 VREF
P40/AN0 to
105 to 110
P45/AN5
111 P46/AN6/DA0
112 P47/AN7/DA1
113 AVSS
114 VSS
115 to 122 P17 to P10
123 MD0 (H)
124 MD1 (H)
125 MD2 (H)
126 to 128 PG0 to PG2
62
I/O
Spectrum analyzer display serial data transfer clock signal input from the master controller
I
(IC500)
O Display serial data transfer clock signal output to the liquid crystal display driver (IC900, 920)
—
Ground terminal
Blank indicate control signal output to the liquid crystal display driver (IC900, 920)
O
"L": no display
—
Ground terminal
O Chip enable signal output to the liquid crystal display driver (IC900) "H" active
O Chip enable signal output to the liquid crystal display driver (IC920) "L" active
O Not used (open)
O Not used (open)
O Flash memory data write control signal output terminal "H": active
I
Flash memory data write enable signal input terminal
System reset signal input from the reset signal generator (IC506) and reset switch (S703)
I
"L" is input for several 100 msec after power on, then it changes to "H"
Non maskable interrupt input terminal
I
Connect the backup detect circuit (BU-IN pin $ª) in this set
I Hard ware standby input terminal
— Power supply terminal (+5V)
O System clock output terminal (18.432 MHz)
I System clock input terminal (18.432 MHz)
—
Ground terminal
O Not used (open)
—
Power supply terminal (+5V)
O Not used (open)
O
Serial data output to the SONY bus interface (IC271)
I
Serial data input from the SONY bus interface (IC271)
—
Ground terminal
Serial clock signal input /output with the MD mechanism controller (IC501) and master controller
I/O
(IC500) or serial clock signal output to the SONY bus interface (IC271)
O Not used (open)
—
Power supply terminal (+5V) (for A/D converter)
I
Reference voltage (+5V) input terminal (for A/D converter)
I Not used (fixed at "L")
I
Not used (fixed at "L")
I
Not used (fixed at "L")
—
Ground terminal (for A/D converter)
— Ground terminal
O Not used (open)
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
O Not used (open)
Description
Not used (fixed at "H")