V798670
1
DRAM 4M
EPROM 8M
ROM WAVE L 64M
ROM WAVE L 64M
DRAM 4M
PHOTO
COUPLER
PHOTO
COUPLER
PHOTO
COUPLER
OP AMP
OP AMP
DAC
DAC
REG12V
REG5V
REGULATOR -5V
MOTOR DRIVE
REG3.3V
Transistor
Array
OP AMP
N.C
N.C
N.C
Parts inside of are not installed.
Note: See parts list for details of cicuit board component parts.
Semiconductive Cera. Cap.
Ceramic Capacitor
Metal Oxide Film Resistor
Carbon Resistor (Chip)
HEADPHONES
REVERB
VOLUME
REGULATOR
+ 5V
REGULATOR
+ 12V
DC-DC CONVERTOR
V438930
Soft pedal
Damper pedal
Vcc is +12V or +20V.
µPC2412AHF
AC Adaptor
OPEN
KSN05A-V858590
INVERTER
SYSTEM RESET
Photo Coupler
SILENT SB SERES
SILENT SB SERES
SILENT SB SERES
SBT Coil X5
FL Coil X5
Rotary SW (Pitch) SW1 or SW2
OPEN
OPEN
N.C
POWER
SUPPLY
About 4.3V
PA-300
NJM79L05UA (XN086A00)
REGULATOR -5V
1: V in
2: SW out
3: GND
4: V os
5: S.S
SILENT SB SERIES OVERALL CIRCUIT DIAGRAM (MN, KEY SENSOR, HP-UPS, MN POWER SUPPLY)
(HP2/2)
(HP1/2)