Yamaha MU100, Service Manual

Page: 27 / 38

A B C D E F G H I J K L M N O
1
2
3
4
5
6
7
8
9
10
11
SI-8050C(XT442A00)
REG5V
1:V in
2:SW out
3:GND
1:V in
2:GND
3:V out
1:OUTPUT
2:COMMON
3:INPUT
4:V os
5:S.S
4
5
3
3
3
2
2
2
1
1
1
µPC2933T(XS516A00)
REG3.3V
1:V in
2:GND
3:V out
3
2
1
µPC2909T(XT441A00)
REG9V
MJM78L05UA(XJ598A00)
REG5V
: Carbon resistor 1/10w
: Carbon resistor 1/4w
: Tantalum capacitor
: Electolytic capacitor
: Monolithic ceramic capacitor
: FL coil
: EMI filter
PSW
SW1 cable
SW2 cable
ANALOG SWITCH
A/D INPUT
A/D INPUT
OUTPUT R
OUTPUT L
INPUT R
INPUT R
PHONES
VR cable
OP AMP
DA CONVERTER
to LCD UNIT
LCD UNIT
LCD cable
MULTIPLEXER
CONVERTER DC-DC
LINE TRANSCEIVER
INVERTER
DM
to HOST
HOST SELECT
Photo Coupler
MIDI
INVERTER
ANALOG SWITCH
RESET
BUFFER
EP ROM 16M S RAM 1M
BU 5
to EXPANSION BOARD
DRAM-4M
to PVR-CN14
DC IN
REGULATOR
Heat sink
REGULATOR
WAVE ROM 2 32M ROM 2 16M ROM4 32M
DECORER
28CA2-8811649
2
ROM3 32M ROM1 16M
TRANSCEIVER
DECORER
WAVE ROM1 32M
D-FF
SWP 30
AD FRONT END
AD CONVERTER
OP AMP
HD6432655
CPU
INVERTER
OR
to DM-
CN13
PVR
MU100
SW 15
1 2
SW 14
1 2 VALUTE–
SW 12
1 2
SW 11
1 2 SERECT> SERECT<
SW 9
1 2
SW 8
1 2 PART+
PART–
SW 7
1 2
SW 2
1 2
MUTE/
SOLO
SW 10
1
2
ENTER
SW 13
1 2 EXIT
SW 6
1 2 EQ
SW 5
1 2 MODE
SW 4
1 2 EFFECT
SW 3
1 2 UTIL
SW 1
1
2
PLAY EDIT
LED5
MODE
LED6
EQ
LED3
UTIL
LED4
EFFECT
LED1
PLAY
LED2
EDIT
GND
GND
CN10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MU100 OVERALL CIRCUIT DIAGRAM
HD74LVC139FP
HD74LVC139FP
IC40
0.1
C183
8
16
+50
Vcc
GND
GND
IC40
12
11
10
9
14
13
15
A
B
C
CSHMA0
CSHMA1
CSHMA2
NC
Y0
Y1
Y2
Y3
A
B
G
Y0
Y0
Y0
Y0
CSLMA0
CSLMA1
CSLMA2
NC
2
3
1
LMA22
LMA23
LMA22
HD74LVC139FP
IC40
4
5
6
7
NC
NC
NC
1
2
3
1
2
3
4
5
6
7
8
9
10
HSJ0912-01-010
2
10
11
3
1
L
R
JK7
H.P
( )
NC
NC
0.01
0.01
1 0
6
3
9
5
C175
C174
56u
56u
L68
L69
L70
21B0505 A10KX25W
10X2P
10X2P
CN7
3X2P
CN14
FQ
POWER/
VOL.
VR2
7 1
8 2 NC
NC
NC
NC
NC
NC
NC
NC
NC
NC NC
NC
NC
NC
NC
NC
NC
NC
NC
27
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