Question about Peavey AMPLIFIER, 1000 WPC, DDT, 8/4/2 OHMS => Model PV2000 Car Audio Amplifier
Had sound system hook up working fine, then all of a sudden no sound coming from speakers , but has power on head lights up and all ; also has a little humming sound on coming from head ...Thanks Greg
It APPEARS that the preamp tube heaters are run from DC source while the latter ones and the power output tubes are run on AC.
Check the 6.3 volts AC going to the power amp tube.
That heater power is fed through fuse F2.
I suspect you will find that fuse has a bad fuseholder or is blown. A failure in the transformer is possible and I hope that is not the case.
A heater short in a tube is possible but doesn't happen often. Replace the fuse ONCE only and if it blows again investigate why. Could be bad wiring or a bad socket or an internal short within one of the unlit tubes. Thoose are rare but still possible.
Posted on May 08, 2010
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