Working on this Monitor Audio Radius 360 sub that I got for nowt.
It powers on and receives a signal but it barely produces any sound, I can just about feel the driver beating when I put my hand to it.
Have tested all electrolytic caps and they are not too bad, changed a couple. Tested most transistors and seem ok aside from a couple that were reading slightly different to the others so replaced with new ones matching the others readings.
Got one more transistor out but not sure what the readings mean and don't have anything to compare it too.
Reads on transister tester as a BJT-NPN
MPSA13
hFE = 47.7k
Vf = 1.19v
is that normal?
Next I'm going to check the C5198 & A1941
It powers on and receives a signal but it barely produces any sound, I can just about feel the driver beating when I put my hand to it.
Have tested all electrolytic caps and they are not too bad, changed a couple. Tested most transistors and seem ok aside from a couple that were reading slightly different to the others so replaced with new ones matching the others readings.
Got one more transistor out but not sure what the readings mean and don't have anything to compare it too.
Reads on transister tester as a BJT-NPN
MPSA13
hFE = 47.7k
Vf = 1.19v
is that normal?
Next I'm going to check the C5198 & A1941
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