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XR-M510
• MAIN BOARD IC607 HD6432355A26F (LIQUID CRYSTAL DISPLAY DRIVE CONTROLLER)
Pin No. Pin Name I/O Description
1, 2 PG3, PG4
O Not used (open)
3 VSS —
Ground terminal
4NC—
Not used (open)
5 VCC —
Power supply terminal (+5V)
6 to 9 PC0 to PC3
O Not used (open)
10 VSS —
Ground terminal
11 to 14 PC4 to PC7
O Not used (open)
15 to 18 PB0 to PB3
O Not used (open)
19 VSS —
Ground terminal
20 to 23 PB4 to PB7
O Not used (open)
24 to 27 PA0 to PA3
O Not used (open)
28 VSS —
Ground terminal
29 to 32
PA4/IRQ4 to
PA7/IRQ7
O Not used (open)
33 SP-LAT
I
Serial data latch pulse input for spectrum display from the system controller (IC601)
“H” active
34 P66/IRQ2
O Not used (open)
35, 36 VSS —
Ground terminal
37 P65/IRQ1
O Not used (open)
38 BUS-ON
I
Bus on/off control signal output from the system controller (IC601)
“L”: bus on
39 VCC —
Power supply terminal (+5V)
40 PE0
O
41 PE1
O
42 PE2
O
43 PE3
O
44 VSS —
Ground terminal
45
DSP SEL
I
Spectrum analyzer display data select signal input from the BA3834F (IC102)
46, 47
LED SW1,
LED SW2
I
Security/operation side select control signal input from the system controller (IC601)
“H” active
48 PE7 O
Not used (open)
49 BU-IN
I
Battery detect signal input from the SONY bus interface (IC501) and battery detect circuit
“L” is input at low voltage
50 LINK-OFF O
Link on/off control signal output for the SONY bus “L”: link on, “H”: link off
51 PD2
O Not used (open)
52
ILL-ON
O
Power on/off control signal output of the illumination LED “H”: power on
Output select control signal output to the BA3834F (IC102) *1
*1 Output select logic table
GND
GND 68Hz
170Hz 420Hz
1kHz 2.4kHz
5.9kHz 14.4kHz
PE0 (pin r; )
× 00001111
PE1 (pin ra )
× 00110011
PE2 (pin rs )
× 01010101
PE3 (pin rd )
011111111
“×” is don't care
IC102 (pin qj )
AOUT
Terminal