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Repair help for Panasonic SP10

Randeezel

New Member
I posted a few weeks ago about my SP10, followed the advice about cleaning switches, but the problem persists. The table turns on but does not spin. It rocks back and forth as if it’s stuck. Seems like a problem with the electromagnet.
Has anyone here had any experience with these older direct drive decks and come across this issue?
 
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Begin with the power supply. Make sure those voltages are correct per service manual. Don't be surprised if you have to service the power supply.
 
I purchased a Sanyo TP 1000 a few months back that was spinning way too fast, long story short, the guy that repaired it said it had something to do with the bearing well. It was spinning off balance and thus not centered with magnets. Maybe you have something similar with the bearing or magnets.

I'm not sure with the Technics, but if you are able to look at the bearing well and magnets that might help.
 
I purchased a Sanyo TP 1000 a few months back that was spinning way too fast, long story short, the guy that repaired it said it had something to do with the bearing well. It was spinning off balance and thus not centered with magnets. Maybe you have something similar with the bearing or magnets.

I'm not sure with the Technics, but if you are able to look at the bearing well and magnets that might help.
Normally direct drives spinning way too fast is nothing to with what your tech said he does a not know what he is talking about.
Chris
 
cafe latte, the two turntables are very different here. The SP-10 here is a servo DD. No IC chips in it. That servo is very dependent on the power supply functioning correctly. Check all soldering on this model, sometimes a bad solder joint or three can cause grief. The SP-10 and most Technics suffer from electrolytics past their prime too. Your Sanyo is a CEC built DD, a very different system.
 
@cafe latte I'm just throwing ideas out there for the OP. My tech has been repairing all the big name since the 80s. He is very highly regarded and has customers bring him repairs out of state. He has a lot of experience repairing direct drives of every brand.
 
OP your SP10 as Kent said is a servo direct drive, lot less complicated than newer Mk2. Could be wrong but I have a hunch it shouldn't be difficult to get repaired, up in years but built like tanks.
 
I’d love some recommendations/contact info for service techs who specialize in these older DD tables. I used to go thru Needle Doctor in Minneapolis, but they recently shut down. I also contacted KAB, but they weren’t able to help.
 
Hi there, I am having the same problem with an original SP 10. Replaced caps, fuse and two faulty pots only to have the platter spin a few centimeters. Did you figure out what your problem has been?
 
Hi Sachin, thanks so much for your lead on this! I'll have a look at the transistors right away. Btw. I have 2 SP 12, both in wooden plinth, one with the Mikro Trak 303 and one with SME 3009. Wonderful decks!
 
I am glad you find it useful. I hope you can get it worked. Any chance you have a plinth templet of SP12. I am looking to build a plinth for it.

Regards
Sachin
 
@cafe latte I'm just throwing ideas out there for the OP. My tech has been repairing all the big name since the 80s. He is very highly regarded and has customers bring him repairs out of state. He has a lot of experience repairing direct drives of every brand.
He might have but what he advised makes no sense. Pots on older DD's, feedback circuit, maybe a transistor, or caps are the normal places to look at, sometimes a diode too can cause odd issues but not the bearing, not for a direct drive going fast.
Chris
 
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