The gain pot and x-over freq pot are actively used on the device, only the bassboost pot is non-functional, there is no response even if I turn it left or right.
[COLOR=var(--YLNNHc)]A new 361 was installed, the problem was the same, there is no darkening under the circuit board, I will try to remove the indicator.[/COLOR]
[COLOR=var(--YLNNHc)]A new 361 was installed, the problem was the same, there is no darkening under the circuit board, I will try to remove the indicator.[/COLOR]
After desoldering one terminal of the inductor, reinstall the drivers. Do they overheat (heat up more than the other corresponding parts)?
Does the amp still power up and produce audio?
The problem may have seemed to be the same after replacing the 361 but that's because there were multiple problems.
Does the amp still power up and produce audio?
The problem may have seemed to be the same after replacing the 361 but that's because there were multiple problems.
The inductors are generally re-windable. You may only need to insulate the blackened windings (it will at least work for testing the core).
When you can see a dark ring in the shape of the inductor on the bottom of the board, the cores are often beyond saving because they ran too hot for too long. This one appears that it may be OK.
When you can see a dark ring in the shape of the inductor on the bottom of the board, the cores are often beyond saving because they ran too hot for too long. This one appears that it may be OK.
That was my thought as well. If you desolder the lead from the discolored inductor(Post# 14 shows it on the right) you should be able to power amp up without excessive current.
Where the missing output mosfets shorted? This is another indication that the Inductor may have shorted adjacent windings.
Where the missing output mosfets shorted? This is another indication that the Inductor may have shorted adjacent windings.