hi
my son has just brought me a small PA amp,this had been shut down as smoke was seen,
on removing the lid i found the cause of the smoke was that the bridge rectifier had started to melt,
could anyone please suggest a reason for this, as they are normally quite robust devices.?
the internal mains fuse was intact,there is no visable problems either side of the board.
there are two high value caps adjacent to the bridge, they check ok with multimeter, should i replace these as well?
(the audio output looks a single push pull pair)
will try and get a pic when the batteries have charged.
thank you
dougal
my son has just brought me a small PA amp,this had been shut down as smoke was seen,
on removing the lid i found the cause of the smoke was that the bridge rectifier had started to melt,
could anyone please suggest a reason for this, as they are normally quite robust devices.?
the internal mains fuse was intact,there is no visable problems either side of the board.
there are two high value caps adjacent to the bridge, they check ok with multimeter, should i replace these as well?
(the audio output looks a single push pull pair)
will try and get a pic when the batteries have charged.
thank you
dougal