Fl Tube Driver - Yamaha CDR-HD1500 Service Manual

CDR-HD1500
QQ
3 7 63 1515 0
IC401 : M66005-0141AFP (OPERATION P.C.B.)

FL tube driver

TE
L 13942296513
14
CS
15
SCK
SDATA 16
21
XIN
20
XOUT
RESET 13
19
Vcc1
60
Vcc2
22
Vss
32
Vp
No. Name
1 DIG11
2 DIG10
3 DIG09
www
4 DIG08
5 DIG07
6 DIG06
.
7 DIG05
8 DIG04
9 DIG03
10 DIG02
38
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Display code RAM
( Bank 1 : 8bit x 16
Bank 2 : 8bit x 64
code
write
Serial Code/
data
receive command
circuit control
circuit
Clock
timing
Display
clock
generator
controller
IN/OUT
O Digit output
O Digit output
O Digit output
O Digit output
x ao u163
O Digit output
y
O Digit output
i
O Digit output
O Digit output
O Digit output
O Digit output
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2 9
8
CGROM
)
(35bit x 160)
Segment
Q Q
3 6 7 1 3 1 5
output
circuit
CGRAM
dot data
(35bit x 16)
write
Segment/
Digit
select/
code
output
select
circuit
scan pulse
Digit
output
circuit
2
Function
co
.
9 4 2 8
59
SEG00
33 SEG26
0 5 8 2 9 9 4 2 8
31
SEG27
24 SEG34
23 SEG35
64 DIG12/SEG36
63
DIG13/SEG37
DIG14/SEG38
62
61
DIG15/SEG39
12
DIG00
1 DIG11
18
P0
17 P1
m
9 9
9 9