Sony XR-M500R Service Manual page 48

QQ
3 7 63 1515 0
• MAIN BOARD IC607 HD6432355A22F (LIQUID CRYSTAL DISPLAY DRIVE CONTROLLER)
Pin No. Pin Name
1, 2 PG3, PG4
3 VSS
4 NC
5 VCC
6 to 9 PC0 to PC3
10 VSS
11 to 14 PC4 to PC7
15 to 18 PB0 to PB3
19 VSS
20 to 23 PB4 to PB7
24 to 27 PA0 to PA3
28 VSS
PA4/IRQ4 to
29 to 32
PA7/IRQ7
33 SP-LAT
34 P66/IRQ2
35, 36 VSS
37 P65/IRQ1
TE
L 13942296513
38 BUS-ON
39 VCC
40 SPE-A
41 SPE-B
42 SPE-C
43 SPE-SEL
44 VSS
45
DSP SEL
LED SW1,
46, 47
LED SW2
48 PE7
49 BU-IN
50 LINK-OFF
51 PD2
52
ILL-ON
*1 Output select logic table
IC102 (pin qj )
AOUT
Terminal
SPE-A (pin r; )
www
SPE-B (pin ra )
SPE-C (pin rs )
SPE-SEL (pin rd )
.
"×" is don't care
48
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I/O
O Not used (open)
—
Ground terminal
— Not used (open)
—
Power supply terminal (+5V)
O Not used (open)
—
Ground terminal
O Not used (open)
O Not used (open)
—
Ground terminal
O Not used (open)
O Not used (open)
—
Ground terminal
O Not used (open)
Serial data latch pulse input for spectrum display from the system controller (IC601)
I
"H" active
O Not used (open)
—
Ground terminal
O Not used (open)
Bus on/off control signal output from the system controller (IC601)
I
"L": bus on
—
Power supply terminal (+5V)
O
O
Output select control signal output to the BA3834F (IC102) *1
O
O
—
Ground terminal
I
Spectrum analyzer display data select signal input from the BA3834F (IC102)
Security/operation side select control signal input from the system controller (IC601)
I
"H" active
O Not used (open)
Battery detect signal input from the SONY bus interface (IC501) and battery detect circuit
I
"L" is input at low voltage
O
Link on/off control signal output for the SONY bus "L": link on, "H": link off
O Not used (open)
O
Power on/off control signal output of the illumination LED "H": power on
GND GND 68Hz
×
0 0
×
0 0
×
0 1
x ao
y
0 1 1
i
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8
Description
Q Q
3 6 7 1 3
170Hz 420Hz 1kHz 2.4kHz
0 0 1
1 1 0
0 1 0
u163
1 1 1
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
5.9kHz 14.4kHz
1 1 1
m
0 1 1
1 0 1
co
1 1 1
9 9
2 8 9 9