Purchase this amp broken. Looks to have the power supply fet replace. Only one side has been replace. I've replaced the output transistors.the amp doesn't not go into protect but once the output section power up. It draws a ton of amperage and one of the output inductors gets extremely hot. So hot is started changing colors and steaming. What can me issue be?
It sounds like the inductor may be shorted.
Post a photo of the board and mark the inductor that's heating up.
Post a photo of the board and mark the inductor that's heating up.
The same inductor that's getting hot was also loose and a zip tie original was hold it to the board was broken.
Did you try twisting the inductor to see if the current draw changed?
They typically short where the terminal windings meet the rest of the windings. Generally top or bottom.
It looks like it has been running hot for a while. It may be possible to rewind it if the core didn't get too hot.
They typically short where the terminal windings meet the rest of the windings. Generally top or bottom.
It looks like it has been running hot for a while. It may be possible to rewind it if the core didn't get too hot.
Also I've notic just now when I was trying to power the amp up again to wiggle the inductor around to see if that would change my amp drawn. The amp went into protect. I press in the chip then it power up but the inductor still gets very hot very fast. What is this chip. Looks like someone has resolder the pins on this chip. Part number PIC16F676-I/P. Did a search comes up at a programmable microcontroller. if this doesn't have a good connection can this cause the inductor to run hot or the output suction to run full open?
Yes, it's a programmable that comes blank if you buy from electronics distributors.
It can't make the inductor run hot.
Do you have an inductance meter?
It can't make the inductor run hot.
Do you have an inductance meter?
I think it should be.
Do you have any junk amps with similar looking inductors from an amp that uses the 21844 ICs?
Do you have any junk amps with similar looking inductors from an amp that uses the 21844 ICs?
I have some news ones I've installed. The factory once appeared to be sanded down they had no markings on them. I had did that before I had installed the new output mosfets
I'm asking about the inductors, not the ICs. Do you have any other inductors that you could use as replacements?
Do you know anyone who has an inductance meter?
Do you know anyone who has an inductance meter?