58
MDX-M690
•
MAIN BOARD IC702 HD6432355A36F (DISPLAY CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SA-CLK
O
Spectrum analyzer display serial data transfer clock signal output to the TDA7406T (IC305)
2
NCO
O
Not used (open)
3
VSS
—
Ground terminal
4
NCO
O
Not used (open)
5
VCC
—
Power supply terminal (+5V)
6 to 9
NCO
O
Not used (open)
10
VSS
—
Ground terminal
11 to 18
NCO
O
Not used (open)
19
VSS
—
Ground terminal
20 to 27
NCO
O
Not used (open)
28
VSS
—
Ground terminal
29 to 31
NCO
O
Not used (open)
32
SA_ENIN
I
Enable signal input for spectrum analyzer display from the system controller (IC500)
“H”: active
33
SPE-LAT
I
Serial data latch pulse input for spectrum analyzer display from the system controller (IC500)
“H” active
34
BU-IN
I
Battery detection signal input from the SONY bus interface (IC601)
“L” is input at low voltage
35, 36
VSS
—
Ground terminal
37
NCO
O
Not used (open)
38
BUS-ON
I
Bus on/off control signal input from the system controller (IC500)
“L”: bus on
39
VCC
—
Power supply terminal (+5V)
40 to 43
NCO
O
Not used (open)
44
VSS
—
Ground terminal
45
DSP_SEL
I
Setting terminal for spectrum analyzer display data “L”: A633, “H”: DSP-IC
46, 47
LED SW1,
LED SW2
I
Security/operation side select control signal input from the system controller (IC501)
48, 49
NCO
O
Not used (open)
50
LINK-OFF
O
Link on/off control signal output for the SONY bus “L”: link on, “H”: link off
51
NCO
O
Not used (open)
52
ILLON
O
Display power supply on/off control signal output “H”: display power on
53
VSS
—
Ground terminal
54 to 56
NCO
O
Not used (open)
57
BOOT
I
Serial data input at the flash memory writing mode “L” is input when writing change
58
VCC
—
Power supply terminal (+5V)
59
NCO
O
Not used (open)
60
LCD_SO/TX
O
Display serial data output to the liquid crystal display driver (IC1, 60, 61)
Output terminal for UART transfer data when writing into internal flash memory data
61
SP-SI
I
Spectrum analyzer display serial data input terminal Not used (fixed at “L”)
62
RX
I
Input terminal for UART transfer data when writing into internal flash memory data
63
SP-SCK
I
Spectrum analyzer display serial data transfer clock signal input terminal
Not used (fixed at “L”)
64
LCD_CKO
O
Display serial data transfer clock signal output to the liquid crystal display driver (IC1, 60, 61)
65
VSS
—
Ground terminal
66
LCDCE0
O
Chip enable signal output to the liquid crystal display driver (IC60) “H”: active
67, 68
VSS
—
Ground terminal
Summary of Contents for MDX-M690
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