Yamaha AS60-112T Owner's Manual

To connect your electric guitar to the Yamaha AS60-112T Amplifier, use a standard 1/4-inch instrument cable. Plug one end into your guitar's output jack and the other end into the amplifier's input jack. Ensure the amplifier is turned off while making connections to avoid any potential damage.
Regular maintenance of the Yamaha AS60-112T Amplifier includes cleaning the exterior with a dry cloth, ensuring all connections are tight, and periodically checking the tubes for wear and tear. It's also important to keep the amplifier in a dry, dust-free environment to prolong its lifespan.
If there's no sound output, first check that all cables are properly connected and the amplifier is powered on. Verify that the volume levels are set above zero and the correct input source is selected. If the issue persists, inspect the tubes for any signs of damage or wear, and replace them if necessary.
Common causes of humming noise include ground loop issues, faulty cables, or interference from other electronic devices. Try using a different power outlet, replacing cables, or relocating the amplifier away from other electronics to see if the issue resolves.
Store the amplifier in a cool, dry place away from direct sunlight. Cover it with a dust cover to prevent dust accumulation. Ensure the storage area is free from moisture to avoid any potential damage to the electronic components.
If the amplifier overheats, turn it off immediately and allow it to cool down. Ensure that the ventilation openings are not blocked and that the amplifier is placed in a well-ventilated area. Avoid operating the amplifier at maximum volume for extended periods.
While the Yamaha AS60-112T Amplifier is primarily designed for electric guitars, it can be used with a bass guitar for practice or small performances. However, for optimal sound and to avoid potential damage, it's recommended to use an amplifier specifically designed for bass guitars.
To replace the tubes, first ensure the amplifier is turned off and unplugged. Allow the tubes to cool before handling. Carefully remove the back panel of the amplifier, gently remove the old tubes, and replace them with new ones of the same type. Reattach the back panel and test the amplifier.
Use a soft, dry cloth to gently wipe the exterior of the amplifier. Avoid using any liquid cleaners or sprays directly on the amplifier. For the control knobs, you can use a slightly damp cloth to remove any grime, ensuring no moisture enters the unit.
To improve sound quality, ensure your guitar and cables are of good quality. Experiment with different settings on your amplifier, such as adjusting the EQ controls. Additionally, consider using quality effects pedals to enhance your sound.