Just repaired Tannoy TS10sub.
Green light was on but no output.
Got schematics from here.
I dont have a scope so i
used a cell phone frequency app generator to line in L/R.
Traced with input to mini speaker which i saw on Billm Audio.
(Youtube)
Signal got to audio amp board then died.
I checked many components all ok.
Caps had no signs of releasing smoke buy i ended up recapping
5 electrolytic and 3 BP caps anyway. I figure one of the BP's in line were dead.
Tested all caps off board which showed all out of spec readings.
RT1 was suspicious reading 121ohm but I left in and thought I could
jump to test if recap didn't work.
Works fine now.
As EEV Blog David Jones (Youtube) would say.
Winner winner chicken diner!
Green light was on but no output.
Got schematics from here.
I dont have a scope so i
used a cell phone frequency app generator to line in L/R.
Traced with input to mini speaker which i saw on Billm Audio.
(Youtube)
Signal got to audio amp board then died.
I checked many components all ok.
Caps had no signs of releasing smoke buy i ended up recapping
5 electrolytic and 3 BP caps anyway. I figure one of the BP's in line were dead.
Tested all caps off board which showed all out of spec readings.
RT1 was suspicious reading 121ohm but I left in and thought I could
jump to test if recap didn't work.
Works fine now.
As EEV Blog David Jones (Youtube) would say.
Winner winner chicken diner!