Yamaha CLAVINOVA CLP-120 Service Manual page 41

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<P.1>
CLP-120 CIRCUIT DIAGRAM 1/3 (DM)
DM
PROGRAM ROM
SRAM
NAND
OR
DEMULTIPLEXER
DRIVER ARRAY
EFFECT DRAM
CLP-120
3 4 5
SRAM
SWX00B
SWX00B
6 7 8
to GHDcl SW L-CN1
REGULATOR +3.3V
SYSTEM RESET
WAVE ROM WAVE ROM
REGULATOR +5V
D/A CONVERTER
9 10
REGULATOR +5V
to MAJ-CN2
to DJK-CN4
Not installed
REGULATOR +12V
Non connect
to MAJ-CN6
OP AMP
28CC1-8822660
Note: See parts list for details of citcuit baord component parts.
11
CLP-120
A
B
C
NJM J78L05UA(XJ598A00)
REGULATOR +5V
DM:IC023
1
2
3
1: OUTPUT
2: COMMON
3: INPUT
SI-850L (XS346A00)
D
REGULATOR +5V
DM:IC027
1: V out
6
2: S.switch
4
3
2 3: GND
1
4: L in
6: V in
PC2912T-E1(X2091A00)
REGULATOR +12V
DM:IC018
E
2
1
3
1: INPUT
2: COMMON
3: OUTPUT
µPC2933T(XS516A00)
REGULATOR +3.3V
DM:IC015
2
F
1
3
1: V in
2: GND
3: V out
µPC78L05T (XS721A00)
REGULATOR +5V
DM:IC023
1
2
3
1: INPUT G
2: GND
3: OUTPUT
M51951AML(XR063A00)
SYSTEM RESET
DM:IC012
1
2
3
1: SUPPLY
VOLTAGE
2: GND
3: OUTPUT
H
（セ）： Ceramic Capacitor
セラミックコンデンサー
CLP-120