48
•
MAIN BOARD IC607 HD6432355A22F (LIQUID CRYSTAL DISPLAY DRIVE CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
PG3, PG4
O
Not used (open)
3
VSS
—
Ground terminal
4
NC
—
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
SPE-A
O
41
SPE-B
O
42
SPE-C
O
43
SPE-SEL
O
44
VSS
—
Ground terminal
45
DSP SEL
I
Spectrum analyzer display data select signal input from the BA3834F (IC102)
LED SW1,
Security/operation side select control signal input from the system controller (IC601)
“H” active
Battery detect signal input from the SONY bus interface (IC501) and battery detect circuit
“L” is input at low voltage
Link on/off control signal output for the SONY bus “L”: link on, “H”: link off
Power on/off control signal output of the illumination LED “H”: power on
Output select control signal output to the BA3834F (IC102) *1
GND
GND
68Hz
170Hz
420Hz
1kHz
2.4kHz
5.9kHz 14.4kHz
SPE-A (pin
r;
)
×
0
0
0
0
1
1
1
1
SPE-B (pin
ra
)
×
0
0
1
1
0
0
1
1
SPE-C (pin
rs
)
×
0
1
0
1
0
1
0
1
SPE-SEL (pin
rd
)
0
1
1
1
1
1
1
1
1
“
×
” is don't care
IC102 (pin
qj
)
AOUT
Terminal
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
