Kicker zx1500. 1 no output.

[Perry Babin]

I had one that I pulled out of a junk board that went into another amp and it measured 230uH. That's the only one I've ever checked.

 

[PapaZBill]

The schematic calls for an 80uH coil.


The 1.8K 400v is C60 and is tied from the positive to negative rail.

 

[rhempz01]

Thats alot of differences, so should i rewrap the inductor, or run with it as is. The amplifier with the inductor (168uH) installed has audio, clear but seems low despite gain setting.

 

[PapaZBill]

Yes, re wrap for 80uH. The added inductance may be causing attenuation.

 

[rhempz01]

Should I just measure the lengths and gauge and rewrap accordingly and measure the inductance.

 

[PapaZBill]

Yes, If the core is good the original number of turns should yield the intended inductance-80uH. The same gauge is necessary for power handling and will have a little effect on inductance.

 

[rhempz01]

So I have 19gauge available seems close enough.

 

[PapaZBill]

If it's within one gauge size you will be fine.

 

[rhempz01]

86.433uH with new wire.

 

[Perry Babin]

Same number of turns as the original?

 

[PapaZBill]

Remove as many turns to get to 80uH

 

[PapaZBill]

Did there appear to be any delamination or shorted turn?

 

[rhempz01]

Yes, same length of wire? And it came out closer

 

[rhempz01]

Yes on the outer coating of the wire on the folds its seemed to be broken down.

 

[rhempz01]

One turn less is 80.297uH

 

[PapaZBill]

That's close enough

 

[rhempz01]

Still has a high pitched wine emitting when playing audio?

 

[PapaZBill]

Look at the zobel hi watt low value resistor I'll have to check schematic, but it's across the speaker terminals

 

[rhempz01]

R139?

 

[PapaZBill]

R139-2 ohm 3 watt may have increased in value. In my experience it will cause the audio to become muffled or muddy. Also check C112-10uF/100v NP.