How do you adjust the radio on a 1995 blazerthe radio turns on but no sound?

How do you adjust the radio on a 1995 blazerthe radio turns on but no sound?
There are a couple of possibilities of what is wrong with your radio, but I doubt it needs any "adjustment":

First, if the Power button and Volume knob are separate, it is possible that your power button is function, but your volume knob is broken, if so, chances are you would have to take it to a TV/Appliance Repairman (if you can find one in this day and age) or just buy a new radio.

Second, its possible that in the back of the radio, on the wiring harness, the output wiring that goes from the radio receiver itself to the cars speakers has been cut, frayed, or become pinched in the dash, but the power cable from car's battery into the radio is still good, allowing the radio to turn on, but not allowing you to hear it.

Third, its possible that while the internal components of the radio that control the display and the associated input power are good, the components of the radio that process sound have gone bad, allowing for the radio to turn on, but not "work".

Finally, its possible that your vehicle is equipped with a stock amplifier that the speakers are wired directly to, and that it has gone bad, which is allowing the radio to turn on and produce sound, but not be heard.