Servicing a Project/One DR-330 turntable - DC motor

[@cosmo18603]

Thank u for the video, made me want to try to fix my motor on a Yamaha TT400u, can't find a motor anywhere so after watching ur video I went ahead and took it apart after 2 jabs to the hand (no screws holding the bottom together) I got my Dremel out and cleaned the same area oiled the bottom put it back together (of course backwards) finally got it back in soldered hooked up and it worked. Thanks soo much.

[@bobbyhanson8100]

you have great skills and talent.. i just bought this particular model..and i watched it to see what it may need someday. im richer for having spent time with you here. thank you!

[@mbarr704]

Great job Jordan, this will guide some newbie the right direction and avoid a costly mistake. You are a great asset to eBay community, congrats.

[@drbbhiggins]

I grew up with this exact turntable model. Recorded many reel to reel tapes with it.

[@skylardickson5201]

Had no idea that john goodman was such a turntable guru

[@BenjaminGib]

Woohoo I tried my first motor disassembly and lube and put back together. My akai turntable from 1986 is running underspeed. Unfortunately now it’s going even slower! I guess these motors do wear out and it mine needs replaced? I’ve got a new belt w proper specs and made sure the spindle bushing was clean and re lubed.

[@BenjaminGib]

Maybe my new belt got too stretched out because it was seemingly too tight when I got it from amazon. 😢

[@lvvry1855]

Jordan: You should have been a surgeon! Such deft fingers!

[@concrete981]

when buying a vintage TT will 90% of the motors need work soon? you kept mentioning if the motor is frozen when taking it apart and can't be fixed the TT isn't worth saving and trash the whole TT..... which new TT brand and model , fully automatic new one would you suggest and the stylus do you recommend. these 50 year old TT have too many parts that can't be fixed. and after a few months of constant repairs, you'll end up throwing it over a bridge.

[@rsanchez7111]

You just upgraded to a reverse mode lol Nice tips

[@richardbinder5175]

Hi Jordan, just seen this video and its really useful. You mention that the motor cannot be replaced only serviced. For what reason is this a problem, is it that replacement motors cannot be sourced or for other reasons? I have a Technics SL-235 turntable but motor has stopped running. I think it is wasting

[@Frank-wp2hs]

Hey Jordan, is that just standard sewing machine oil you used in the DC motor? I’ve seen a lot of people saying use sewing machine oil and a lot of others saying use synthetic electronic motor oil. Do you have a preference?

[@JordanPier]

Sewing machine oil is ok. Turbine oil is better.

[@BenjaminGib]

Thanks for a great video.

[@J_Braz_]

I just got a Sony 300 model belt drive. I put a record on that is for 33rpm got it running and it was playing way too fast. The device was on 33 as well. I tried calibrating the holes on back of the motor now it wont turn at all. If I give the brass spinner a thump it spins a little. If I press down on the brass motor spinner I can feel the motor turning and trying to spin the brass

[@jeffweisgerber3313]

Great vid! I just picked one of these up at Goodwill and am working on it. Curious as to what you sold it for after fixing it up.

[@concrete981]

these 50 year year old TT will work for a few months, run, problem, fix, stop running, fix. do you still have it or did the trash man haul it away to the land fill 2 months after you bought it for $5 at the junk store, (thrift shop).

[@MrJulius1217]

Hi Jordan, great video, thanks! Just getting into restoring my Technics SL-B2. But there is so much controversy about what OIL to us for your dc motor. What do you use?

[@JordanPier]

MrJulius1217 zoom spout

[@MrJulius1217]

Thank you.

[@emmanuelodubanjo6618]

The plate of mine doesn't spin when is on 33 but only on 45, does the motor pulley needs to go up when it's on 33 and down when is on 45?

[@atomkraft69]

Hi Jordan! I have a Grundig belt drive with a dc motor which spin too fast (I would say extremely fast).... Do you think that if I cleaned the dc motor (as you did here) would help or the problem is somewhere else? Thanks!

[@JordanPier]

If the motor speed is very excessive it's likely an electronic failure inside the motor.

[@atomkraft69]

@@JordanPier Thank you so much for replying, Jordan! Just one more question and I'll leave you in peace... does it mean that I will have to change the motor?

[@JordanPier]

@@atomkraft69 yes, usually the motor will have to be replaced. The hardest part is finding one that is the correct type.

[@aykutkalem939]

Thanks

[@CaptainGimp]

Excellent video, I've learned loads......but how did you deoxidize the speed control? I have a Pioneer PL100 with a pitch control and whenever I go to adjust it the speed jumps just like this one did.

[@JordanPier]

Scruffy Gyppo spray a little caig deoxit d5 into the control where the 3 leads stick out. work the control back and forth about 30 times

[@CaptainGimp]

Thank you very much for the reply, really appreciate it :)

[@anthonys.976]

Hey Jordan do you know the weight of the lateral of this turntable? I have this turntable and it doesn't have this lateral weight....do I even need it? Thanks for uploading videos, fun to see the troubleshooting process.

[@JordanPier]

I don't remember what it is, but usually a 1 gram weight is sufficient. No more than that

[@makinosong4153]

dude sounds straight up like a smart seth rogan

[@jayf3098]

Great Video. I just bought an old Sanyo TP 1010 everything works great except the DC motor is super noisy when running. Would some bearing oil fix it?

[@JordanPier]

+Jay F drop or two of oil on the top bearing should help

[@gns423]

Excellent video with great info. My brother has a Dual CS 450, brand new, that acts weird. The turntable bounces, sometimes at the start of a record, sometimes halfway through. I don't know if you are familiar with this model, (I don't think it's one of Dual's better models) but the platter sits on a smaller, plastic platter that drives the belt. The belt looks good, and the motor does wiggle a little. I'm stumped. Any suggestions?

[@JordanPier]

I would try to remove the smaller platter, and clean and lubricate the shift bearing with machine oil. 3 in one works ok. If the bearing is dry or worn it can cause this symptom. Also check for anything that may have gotten under the platter causing intermittent obstruction

[@gns423]

+Jordan Pier Thanks Jordan. It is now working great. The smaller platter had a shaft that went into a sort of oil cup. I used deoxit on the shaft and oil cup, and re-oiled it, and it's working fine.

[@gns423]

Thanks again. Keep up the good work.

[@JeanArcand]

Thanks for sharing your knowledge! Anyone know where I can get a replacement motor for my sl-20?

[@mohammadjml5721]

great job , but it work or not ?

[@JordanPier]

Yes, this service fixed this motor. May not fix all

[@boymj]

🤘

[@coreyfellows9420]

So I got a Sansui turntable that's a idler wheel driven unit.. So in the center of an idler wheel is a shaft that is screwed into a fixture. That fixture (which I don't know the actual name of was brittle and broke completely in half. Any idea what that is called?

[@JordanPier]

Idler arm or idler pivot arm

[@seankennedy8506]

Hey Jordan. Just replaced my belt for my table. There was no manual(or belt) so had to measure the belt myself. I measured around the path of the inside platter where the belt sits and got a length of 421mm. I ordered a new belt which was 393 mm in length as that was the closest one I found which is 7 percent smaller than the measured length. So I plug the record player in with new belt on and it's still playing slow. Could it be that the belt is just a tad bit small and there is too much tension and that's why it's slow and maybe I should order a few millimetres longer OR could it be the motor that needs an adjustment? Can't seem to locate the screw to adjust the speed of the motor

[@JordanPier]

There should be 3-5% stretch to the motor pulley. There should be just enough tension to rotate the platter at the correct speed It's likely too tight. Typically sizes are about 23.6 - 25" for that drive mechanism. I would start large and work your way down Is your turntable a project/one like the one in the video, or different make and model?

[@seankennedy8506]

@@JordanPier It's a Hitachi which came as part of a Hitachi T-53L stereo system which I can't find a manual for and have looked for months.

[@seankennedy8506]

Could the motor be damaged if there is too much tension on the belt ?

[@JordanPier]

@@seankennedy8506 absolutely

[@cm2881]

Great video, I have a belt driven Sansui FR-3060 and I hear some rumble caused by a noisy motor. It vibrates and you can hear the rumble as soon as the stylus touches the record. Any suggestions?

[@JordanPier]

Make sure the transport screws aren't still in the motor. If you can't wiggle the motor around on its grommets a little then they are still in. often they have a blue tint to them. Also if the motor suspension is made of rubber and has deteriorated a similar problem will occur. Also check to See that there is no junk on the pulley and that the motor pulley is straight

[@cm2881]

+Jordan Pier I might take it apart tonight. Both the lube tubes and wires are stiff after 44 years. Will replace the tubes and motor wires for something softer to see if it helps.

[@archiemanaloto]

Hi, I have otto tp-401fa and its a belt drive but not a dc servo. The problem is it gets hot during long play as in you can't touch it long for few seconds and i think it affects the belt. Any recommendations how to prevent it from getting too hot? Thanks

[@JordanPier]

Likely a short circuit inside the motor. The motor needs replacement.

[@archiemanaloto]

@@JordanPier thanks man, hard to find here in the philippines

[@wayneg296]

👍👍😎✌️

[@MechanizedMedic]

Do you recall what size belt you used on this? I've got a DR-331 that looks identical.

[@JordanPier]

I believe the Russell industries frx-23.6 was the belt, but don't quote me on that.

[@billbill4226]

What's the function of the lateral balance weights on these turntables? Do they require adjustment?

[@JordanPier]

they somehow effect the bias (antiskate) function but I'm not so sure it's makes much difference

[@sudhirsingh-sx8lo]

what is the brass thing called on the shaft where the belt sits

[@JordanPier]

Motor pulley.

[@daveswisher9733]

Jordan: it is obvious that you are a turntable guru. I have a project one dr-550 direct drive turntable. I cant get the speed to stay constant. adjusting speed makes strobe go all over the place. plus speed is slowing down and speeds up all by itself. Can you direct me on how to alleviate this problem?

[@JordanPier]

Dave Swisher get a can of caig deoxit d5 contact cleaner, take the bottom off the turntable and shoot some inside the speed control where the three leads purtrude. Work the speed controls back and forth about 20 times, button it back up and retest. On occasion the speed selector switch goes bad, but this is not often. I think after your clean the speed controls it will behave

[@daveswisher9733]

thanx Jordan youre the best

[@daveswisher9733]

hey Jordan where can i find rca cables for my project one dr-550 turntable? mine came apart at the plug-in.

[@JordanPier]

Dave Swisher here's what I've been using www.newark.com/mcm/24-12492/6-premium-stereo-patch-cable-dual/dp/64T7438

[@daveswisher9733]

does both ends have plug ins on them? if so i will have to cut the plugs off one end to wire up to turntable. if i have to cut plug-ins off which wires go where on turntable?

[@TonyinMBSC8669]

Hey Jordan, My 30 yr old son is getting into vinyl, so I'm giving him my Denon DP-30L. Had it store in its box for many years. Motor works fine, but the tonearm is not dropping or lifting as it should. Any tips on how to lubricate and best oil for that purpose. ✌

[@JordanPier]

Those servo arms weren't designed to be taken apart. I've found that trying to service them usually results in death of plastics and warpage of the drive coils that move the arm. You can try zeroing the arm while the turntable is unplugged. Adjust the counterweight until the arm just begins to float above the platter. Now plug in, set the tracking force dial to about 1.5 and the dampening to the same if it has it. Pray it works otherwise it's more or less a brick. Long term hibernation is a kiss of death for these.

[@TonyinMBSC8669]

@@JordanPier that worked, thank you. Plays just like it did when it was new. It had been in storage for years but had it wrapped in the original plastic bag, Styrofoam and box. Maybe that kept it from totally going to shit. Thanks again!

[@alainrouthier7264]

my quiing is going fast downward instead of slowin when use what is solution

[@concrete981]

similar to computers. after 5-6 years my computers end up waiting for the trash man and he takes them to the land fill.... life's to short.... work on your house.

[@bones007able]

counter clockwise?????

[@colinliebenberg3685]

The black stuff from a liquified drive belt dissolves with soap and water.

[@johnbravo7542]

That is rough work

[@tectalabyss]

Well Done Mr Pier. Do you have an Ebay store?. If so PM me or leave a message here. All my best. Bobby

[@JordanPier]

+Bobby Tectalabyss No ebay store, but I do sell there from time to time. JPDylon is the handle

[@tectalabyss]

Jordan Pier Thank you very much. I followed the search. All the best.