"N_Cook" wrote in message
...
Both 6.3amp fuses blown, 2 diodes of the bridge rectifier s/c. Internal
failure of this bridge, dodgey looking splodge logo, presumably Fronter
logo and 8amp rating, marked
AC BP8-04
or something else to change as well?
Main caps look ok and ESR (for what its worth in such cases) ok
The 2 failed diodes are
-ve to AC
+ve to other AC
Suspiciously 2 solder points look like crazed PbF solder but all is SnPb,
melted and reformed? the 2 points are at the -ve terminal and the AC
terminal of the other failed diode. Output devices DVM-D cold test as
expected. No heated traces or even obvious gaseous eruptions from the
bridge or anything out of the normal. No reported preceeding noises prior
to failure.


I've replaced a few bridges on various Trashdowns. Maybe just not very good
quality ones used by them ? Bad snubber caps across the bridge diodes ?
Maybe none at all ? Power surge at a 'village hall' gig maybe ? Bear in mind
that there's been a lot of lightning around the last few days ...

I've just had a mixer come in dead. It apparently failed during a storm when
there was a power surge due to the cellar at the venue where they were
playing, flooding ... :-\

Arfa