Service manual
PREFACE
iv
DUPLO DF-755 86V-M12D0-0
Ignoring this mark could result in the possibility of serious
injury or even death.
Ignoring this mark could result in the possibility of injury or
physical damage.
2 SAFETY PRECAUTIONS
This manual indicates and describes operations and uses which are accompanied by safety
risks to prevent injuries to users and others as well as damage to property using the
following symbols.
This symbol indicates “warning” or “caution”.
Sometimes, it may contain a graphic inside to detail the “warning” or “caution” more
specifically.
This symbol indicates a “forbidden action”.
Sometimes, it may contain a graphic inside to detail the “forbidden action” more
specifically.
This symbol indicates an “instruction” which must be followed.
Sometimes, it may contain a graphic inside to detail the “instruction” more
specifically.
2.1 Power Supply
The following are power supplies to ensure use in stable conditions constantly.
● Rated power supply:
AC120V 60Hz (USA), AC220-240V 50Hz (UK)
● Rated power consumption:
0.85A (USA), 0.4A (UK)
Use only the power supply voltage specified on the main nameplate.
Using other voltages could result in a fire or an electrical shock.
Make sure that the combined power consumption of the appliances to be connected
does not exceed the capacity rating of the power outlets or plug receptacles.
Exceeding the capacity rating could cause the power outlets, plug receptacles, or
power extension cords to overheat and catch a fire.










