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MCX-1000
A
1
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
J
K
L
72
SCHEMATIC DIAGRAM (OPERATION 2/3)
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
56
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG12/
SEG36
55 DIG13/
SEG37
54 DIG14/
SEG38
53 DIG15/
SEG39
15
SEG35
XOUT 12
Vcc1 11
Vcc2 52
Vss 14
Vp 24
XIN 13
CS
SCK 7
SDATA 8
RESET 5
SEG00
51
16
SEG34
SEG27
23
25
SEG26
Segment
output
circuit
Display code RAM
(Bank 1: 8-bit x 16)
(Bank 2: 8-bit x 64)
CGROM
(35 bit x 160)
CGRAM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00
4
P0
10
P1
9
57
DIG11
IC100, 101: M66005-0141AFP-280
FL Display Driver
6
data
timing
clock
dot data
write
scan pulse
2
4.9
4.9
4.9
0.3
0
4.8
2.0
0.3
4.8
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
0
0
-22.6
-22.6
-22.6
~
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3.3
3.3
3.2
1.7
3.3
3.3
0.2
-27.7
-27.6
-27.6
-27.6
-25.0
3.3
3.3
3.3
3.3
3.3
3.3
0.2
1.8
-27.6
-27.6
-27.6
-27.6
-27.6
-27.6
-16.1
-26.3
-25.0
1.5
0
0
0
0
0
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-27.6
-27.7
-27.6
-27.6
-27.6
-27.6
-27.6
-27.6
-27.6
-27.6
-27.6
-27.7
-27.7
-27.7
-22.6
-22.6
-22.6
-16.1
-26.3
-27.7
-27.6
-27.6
FL
DISPLAY
FL DRIVER
P
age 69
to MAIN
J6
OPERATION (2)
OPERATION (3)
OPERATION (1)