I want to tell you something before I am trying those with ootocoupler.
The inductor was bad looking powdery inside I removed and used heat sink sleeve and wind back two turns.. Inductor still looks dirty so can't see proper. While it going into protect I am hearing a click noise near inductor.
The inductor was bad looking powdery inside I removed and used heat sink sleeve and wind back two turns.. Inductor still looks dirty so can't see proper. While it going into protect I am hearing a click noise near inductor.
There was big dry black glue on the 3 diodes and resistors in that place. I cleaned it thinking if that black substance is conducting pins. When I tried amp now it is not going into protect. But current pull is going up and down as the signal strength is increased or lowered. And mosfets getting hot. Gate drive is 100khz. Is all these sounding normal?
In similar amps, the inductors often shorted but it appears that the one in this amp is fixed solidly to the board. If the fixative appears to have been applied by someone other than the manufacturer, they may have done it to prevent the windings from wearing through.
As a side note, I've never seen the black fixative to be conductive. The beige fixative that turns black is the stuff that becomes conductive. Something in that area may have been damaged.
As a side note, I've never seen the black fixative to be conductive. The beige fixative that turns black is the stuff that becomes conductive. Something in that area may have been damaged.
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