Problem with Peavy TNT 150 bass amplifier.

[raganthecelt]

I am trying to repair my sons Peavy TNT 150 bass amp. The power light comes on but I get no sound. I do need to locate a copy of the schematic. Help!

[Jazz P Bass]

Measure the DC resistance of the speaker.
If it is open, that may be the cause or the result.
If it is open, Do NOT connect a speaker until the amp is checked out.
Connect your multimeter, set to read Volts/dc, to the speaker out jack.
Turn on the amp.
If there is a voltage measured at the jack, then your output section has failed.
If not, then set your meter to read Volts/ac & play something through the amp.
At max volume you should read a few tens of volts ac.