Hello. I have a pioneer pl 71 down in my basement with speed issues. (runs way fast) One of the 502 potentiometer on the motor PCB is literally falling apart. The metal slider has come off.
Is this 502 pot interchangeable with one of the Chinese made 502 pots available on ebay? Are there better quality components to be found? I've been looking at 5k ohm trimpots at website in my home country, and there are many different kinds ranging from 150mW - 1 W. Is this a important factor?
Could I play around with a multimeter to find the correct rating?
I have been looking at the service manual , but I can't really tell if there's any relevant information there.
As you might have guessed by now, I'm very much a newbie in this field.
While having had the turntable serviced by an vintage audio repair shop, the guy said the whole motor was probably shot and in need of replacement.
I however have a hunch that this 502 pot is the culprit.
Wanted to get some feedback from someone with some experience working on electronics before shopping for multimeters, random parts and soldering tools 😅
Any help is much appreciated.
Is this 502 pot interchangeable with one of the Chinese made 502 pots available on ebay? Are there better quality components to be found? I've been looking at 5k ohm trimpots at website in my home country, and there are many different kinds ranging from 150mW - 1 W. Is this a important factor?
Could I play around with a multimeter to find the correct rating?
I have been looking at the service manual , but I can't really tell if there's any relevant information there.
As you might have guessed by now, I'm very much a newbie in this field.
While having had the turntable serviced by an vintage audio repair shop, the guy said the whole motor was probably shot and in need of replacement.
I however have a hunch that this 502 pot is the culprit.
Wanted to get some feedback from someone with some experience working on electronics before shopping for multimeters, random parts and soldering tools 😅
Any help is much appreciated.
Chances are that it dissipates very little power, so the power rating won't matter, but that is just a guess. I would simply try to find a dustproof trimming potmeter that fits on the PCB, it probably has about the same power rating as the old one amyway when it has the same size.
Thanks for the reply!
Seeing as the manual calls for adjusting this pot with a screwdriver while the table is running, I can't imagine there's much power running through it.
Should prove a fun project to learn some soldering.
Seeing as the manual calls for adjusting this pot with a screwdriver while the table is running, I can't imagine there's much power running through it.
Should prove a fun project to learn some soldering.