Hi there, last nigh I played outdoor with my Beringer PMP 3000 Mixer in rainny conditions. Everything was fine with the ipod playing away sounding great until I put the mics were on and a spark/flick sound came through the monitors and then the power went (Fuse) A spaky at the venue changed the fuse but it was 10amp not 6.5 and then smoke appeared and I disconnected instantly. Please help could it be possible not much damage is done? Now-No power and burn smell from the fam area at rear!
You did a lot of damage, and replacing the fuse and trying it has caused much more.
There will be about seven blown parts on the amp and a dozen on the power supply. To give you an idea of the extent, the WHOLESALE parts cost is roughly $50, including the main power supply switchers IGBT's which cost nearly $20 for the pair by themselves.
I have repaired several of these and the larger cousin the PMP5000. It is a lot of skilled work to repair these.
The cause is a marginal insulation between layers of the multi-layer amplifier board. Usually the rearmost amp arcs between the layers. This fries three big switching transistors followed sometimes by a metering resistor and two small surface mounted transistors. A zener diode often goes. The cancer and burned area has to be ground out with a dental drill and new wire replaces the blown circuit traces.
If you are under warranty, take the unit for replacement.
The thing that can arc the amp is if speaker leads are marginal or get pulled out while under power. Excessive volume, especially pulses at high level can break down the insulaton causing the arc and failure. The black smoke is likely from the metering resistor.
589 views
Usually answered in minutes!
×