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Yamaha tx7 Service Manual page 27

Fm tone generator
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TLP552
GK000470)
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IC17.18
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IC19
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GG107000)
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Dl.2.4,5
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1SS133
RM1
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RM2
;4.7k
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12
9.4265MHz
;
Quartz Crystal Unit
500kHz
;Ceramic Oscillator
B1
;
CR2032T (Lithium
Battery,
3V)
Notes)
AS Circuit Board
IC20
;
YM21290
OT212900)
IC21
;
YM21280
(iT212800)
IC22.23
;T6400
(iG079500)
IC24
;BA9221
(iG106000)
IC25
;HD7417P
(iG043800)
IC26
;
TC4066BP
GG001270)
IC27
;TC4016BP
(iG001690)
IC28
;
TC40H174P
GG064100)
IC30.32
;
LF356N
GG107100)
IC31.35.36
;
4558DV
(iG001390
IC33.34
;
NJM072
(iG107000)
IC37
;NJM386
(iG056600)
IC38
;
(i
PC1252H2
GG062500)
Tr3
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Y)
Tr4
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(0, Y)
D3
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1SS133
RY1
sMZ-12
Fl~3
lElectro Magnetic
Interference
(0.022AF)
RM1
;RKC6L103
(6
bit DAC)
Notes)
AD Circuit Board
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;
fi
PC7815H
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IC2
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ft
PC7915H
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Trl
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(J.U.C)
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2SC2792
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D6.7
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D8
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LI
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R5E203A
(G.WG)
L2
;
FL9H151K
PCI
;PC817 (J.U.C)
;PC511
(G.WG)
WIRE
COLOR
ABBREVIATIONS
BE
Blue
RE
Red
BL
Black
SB
Sky
Blue
BR
Brown
VI
Violet
GR
Green
WH
White
GV
Gray
YE
Yellow
OR
Orange
*
Schematic diagram
is
subject
to
change without
notice.
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