Pioneer PL-4 in the house!

[jleon92f]

On the bench..working now!


IMG_1686 by jleon92f, on Flickr

Needs some TLC..LOL :thmbsp:

 

[Jonny Ramone]

My Christmas present for 1983, and my first real turntable. Resurrected it a few years ago, thanks to this site(and Beej's affection for the series).

 

[jleon92f]

Cleaned the inside and speed pots.

Working OK so far.

 

[jleon92f]

OK, the problems have surfaced, sometimes it does not spin without a shove? :scratch2: Speeds are still flacky, speeds up on starting? May have to clean the pots more? :scratch2:

John.

 

[jleon92f]

Looks like a FULL service is needed here..Good something to do tomorrow!

 

[beej]

Speed switch needs a deoxit bath. If you like I can send you my guide on how to disassemble and reassemble this series. SM totally sux in this regard. Shoot me a PM with an email address if you'd like the guide.

Nice unit overall; arms are awesome.

 

[jleon92f]

Apart again, checking the cap numbers..:scratch2:

 

[jleon92f]

Parts ordered.:thmbsp:

 

[kermit z]

That table looks nice Hope you get it up to 1983 snuff

 

[jleon92f]

Speed switch needs a deoxit bath. If you like I can send you my guide on how to disassemble and reassemble this series. SM totally sux in this regard. Shoot me a PM with an email address if you'd like the guide.

Nice unit overall; arms are awesome.

Thanks, I remembered how to do it, Owned a PL-7 a while ago.:thmbsp:

If you have a schematic or caps parts list that I could use.

Thanks,
John.

 

[jleon92f]

That table looks nice Hope you get it up to 1983 snuff

Thanks, I like the tonearm look and how it sounds. Needs a foot repair too and I will do the cuing while it is apart this time.:thmbsp: I don't really need another tt in the house, just trying to keep mind sharp and myself busy..LOL.

John.

 

[beej]

John, replied to your PM. See what I can get to you once I get back from vaca.

 

[jleon92f]

John, replied to your PM. See what I can get to you once I get back from vaca.

Thank you!:thmbsp:

 

[daveyh]

Have you tried taking apart and cleaning the old grease from the motor shaft and re-lubing it? Also clean the magnet and windings. I have had several of these I have worked on and it will slow the speed down and will not let the speed be set correctly.

 

[jleon92f]

new soldiers by jleon92f, on Flickr

New parts..

I will lube the spindle too..:thmbsp:

John

 

[jleon92f]

My Christmas present for 1983, and my first real turntable. Resurrected it a few years ago, thanks to this site(and Beej's affection for the series).

Hope mine looks and works as good as your's when done! :thmbsp:

 

[jleon92f]

Still working on this, taking my time..LOL 5 more to go!

 

[jleon92f]

All done..


IMG_1954 by jleon92f, on Flickr


IMG_1949 by jleon92f, on Flickr


IMG_1940 by jleon92f, on Flickr

Testing now..:scratch2:

 

[jleon92f]

I am still having issues..Need to clean or replace the Trim pots. Do the Values need to match the schematic? 47k/33k ?


IMG_1940 by jleon92f, on Flickr


Thanks, still having fun..
PL-51 schematic. 3.3 and 4.7 k ohm?:scratch2:
John.

 

[jleon92f]

UPDATE: tonearm switch ?

Hi , I think I finally got this working right! The tonearm switch was bad. I bypassed for now. Speed starts and stops fine now and remains steady!

Playing now!

Thanks,
John.