The amplifier can be turned on, but there is no sound.

The amplifier can be turned on because there is no sound. Generally, the fuse is blown because of the large current.

There are two common situations:

1, the last stage of the power amplifier (high power tube) is broken down, resulting in short circuit and high current.

2. The excitation stage of the power amplifier is out of order, which leads to a large current in the last tube.

Power amplifier is commonly known as "amplifier". Its function is to amplify the weak signal from the sound source or preamplifier and push the speaker to make sound. A good set of audio system power amplifier plays an important role. Power amplifiers can generally be divided into three categories: professional power amplifiers, civil power amplifiers and special power amplifiers.