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Pioneer Sx780 not working AC power problems.

Just for clarification, in the SX-980 the resistor to be replaced with a potentiometer would be R8, 470KΩ. In the SX-780 the resistor to be replaced would be R319, a 1MΩ.
 
Just for clarification, in the SX-980 the resistor to be replaced with a potentiometer would be R8, 470KΩ. In the SX-780 the resistor to be replaced would be R319, a 1MΩ.

This receiver have some kind of rusty inside, after that main problem is fixed, I'm gonna treat the cosmetic.

Monday I ll have the trimpod on that board.

Thanks
 

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Hello guys

It's done, 1M in the R8.

I started with 1 M and I'm going down.

No lucky so far, but I'm trying.
 

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I tried all the ranges.
1m to 100.
And the click did not stopped.
There's no way out from this, I'm gonna give up.

Thanks all 4 the help.
 
I tried all the ranges.
1m to 100.
And the click did not stopped.
There's no way out from this, I'm gonna give up.

Thanks all 4 the help.

The x50 series (550, 650, 750, 850, 950, 1050, 1250) use a completely different type of protect circuitry - no chip, all hardwired.
Chances are this won't give you a lick of trouble.
The x80 series uses that PA3004 chip, so you should avoid that series.
 
Hello guys
So, i moved outfrom my old apartment and the first thing i did on the new one, was hooked up my Sx980.
And it worked perfectly.
Not a single flaw, using for straight hours, i guess the only bad thing was the quality of power in my old place.
It's been one month and so far, not even a single click.
Its solved.
 
Hello guys
So, i moved out from my old apartment and the first thing i did on the new one, was hooked up my Sx980.
And it worked perfectly.
Not a single flaw, using for straight hours, I guess the only bad thing was the quality of power in my old place.
It's been one month and so far, not even a single click.
Its solved.

Very good then, Carlkits, I hope your old apartment audio equipment power based noise issues remain a distant memory. ;)

Enjoy your SX980, Sir. :music:
 
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