Yamaha Disklavier Silent Mark III Service Manual page 127

A B C
DU1A OVERALL CIRCUIT DIAGRAM 3/5 (DSP,ATAPI)
1
DSP
2
3
4
5
6
7
AUDIO/ANALOG MIDI IN
8
9
OP AMP
10
ATAPI (DA)
11
12
DU1A
A B C
D E F G
TRANSCEIVER
TRANSCEIVER
FLASH MEMORY
MULTIPLEXER
OP AMP
OP AMP
OP AMP
V525550
CD-ROM DRIVE
D E F G
H I J K
Photo Coupler
SRAM 1M
DSP
INVERTER
INVERTER
ADC&DAC
INVERTER
H I J K
L M N
to CONTROLLER-CN002
PLD
INVERTER
For RESET
INVERTER SYSTEM RESET
INVERTER
LINE DRIVER
CD CONTROL
REGULATOR +5V
Parts inside of are not installed.
V525430 0
: Ceramic Capacitor
Note : See parts list for details of circuit board
component parts
L M N
O P Q
DU1A
1
2
3
4
5
6
7
to MN - CN12
8
9
10
11
12
DU1A
O P Q