Do you have a question about the Yamaha A150 and is the answer not in the manual?
Avoid locations with direct sunlight, high/low temperatures, humidity, dust, or vibration.
Ensure good ventilation, especially around the top, front, and rear of the unit.
Use only the specified voltage (100V) and check outlet capacity.
Do not open or modify the case to prevent hazards and maintain warranty.
Unplug the unit during thunderstorms to prevent damage.
Instructions for troubleshooting and requesting repairs.