Why is my bass not connecting to my amp?
Check the power supply to the amplifier. Make sure the bass amp is firmly plugged into a power source and the power source is turned on. Double-check the volume and tone controls on the amplifier and on the bass guitar. ... Plug a different guitar cable into the amp and guitar.
Why is no sound coming from my guitar?
Check if the amp or PA you are plugged into is turned on. If using a mixer, make sure it's not muted and that all cords are plugged in all the way. ... If you don't have another guitar, plug a cable into the amp and turn the volume up slightly. Touching the end of the cable with your finger should make a loud hum noise.