/diy/ - Do It Yourself

iirc there's a retaining ring in the center.
Remove it and the whole table should lift off exposing the motor
Have you tried spinning it by hand to get it going?

>>1507617
Don't use the record players on those old console units. They were not high quality and they will wear down your records much faster than a good unit even if you put a decent needle in them (which will be very hard to source). While nice looking they were not made with high-quality components and they have very limited directionality due to the speakers being mounted so closely together. Just use it as a radio or wire an MP3 player or Bluetooth receiver into it somewhere. If you are lucky it will have RCA ports on it somewhere. If not and you feel like doing some testing, it should have a wiring diagram pasted to the inside somewhere. Post it and we can maybe find where you need to add a connection.

As for your issue, does the table spin freely by hand? If so, it might be a broken belt or a bad motor. Is it stuck? Then something is locked up.

>>1507636
>Don't use the record players on those old console units.
>>1507636

well that defeats the entire purpose of this thread. OP pbviouslty WANTS to use it or else he wouldnt have asked for help. if you are just gonna offer advice like "bad quality, dont use it" then fuckoff. not everyone needs hi end equipment to enjoy the nostalgia of old equipment. im sure the point OP is making is he wants to MAKE it work regardless of the quality. so either suggest something useful or shut the fuck up

NOW, as far as OP is concerned, open it up check inside to see if there is a belt. most likelt thats the issue, these things did not have direct drive like high end turntables do. so thats probably the issue. check it out let us know whats going on, you wont be able to tell whats wrong by just turning knobs and staring at it for an hour unless you get inside and SEE whats going on.

>>1507751
It will literally destroy his records. But hey, you do you.

>>1507751
> OP, for once, provides a model number
> this pompous faggot sperging out about belts
Its a direct drive turntable numbnuts. Lrn2google.

OP, if you hear the motor running you likely have a worn drive wheel. I don't know how you'd go replacing that. If you do not hear the motor run it's either siezed up or is not getting power. If it spins freely check the switch in the bottom of the tone arm, measure with a meter for function and supply voltage if you have one.

And definitely this >>1507636 records were cheap and expendable back in the day, it was expected you'd go through a few. Even if you got a modern stylus and cartridge I'm not sure you can balance the tone arm on that thing. I wouldn't put anything I cared about through it.

>>1507617
Yell into your grandfathers asshole

>>1507794
>Its a direct drive turntable numbnuts
Oh the irony. It's an idler wheel turntable smoothnuts.

>>1507617
seriously, why is this site called /diy/ it should be called /difm/

damn you people are lazy and stupid.

>>1507814
>It's an idler wheel turntable smoothnuts.
this
the motor shaft turns against a rubber edged wheel which is part of a 'gearbox' which rubs against the inside of the turntable.
The 'gearbox' selects the speed (78, 45, or 33-1/3 rpm)

Likely the oil has solidified on some of the shafts or the motor and 'gummed it up'
Also, the rubber tires will probably be hard and slip against the metal parts they rub against.
A good cleaning may be able to get it going again.

>>1508222
This. Remove old grease, relube. (Plenty of sites discussing what lubrications work best).

A little off topic, but I have an old record player and some records that I don't give a fuck about. I was thinking of replacing the drive system with a single stepper motor that is controllable with an arduino. I would likely put a smaller motor on the arm at the same time so the arduino can lift and lower the needle.

The goal is to automate it so that the arduino would play samples from the record in a pre-programmed pattern, making it an autonomous robot band member (possibly in an entirely robotic band). I'm thinking stepper motor because I'm likely going to want micro-samples and glitch style music, so I want pretty good resolution on the record.

Does anybody have advice on how to minimize the wonky kind of sound that I'm anticipating a stepper motor would have on the audio quality? I would expect that the strong motion of a stepper moving to the next step is going to accelerate, then deccelerate the record in a way that isn't going to be perfectly smooth, so I'm wondering if there is a way to smooth that out while still keeping the precision that a stepper will offer. If there's something that I can do, then I would want to design it in early while I'm designing the pcb and gears and such.

Thank you in advance to all the people that are about to tell me what a shitty idea this is. Your feedback is extra appreciated.

>>1508577
>play samples from the record in a pre-programmed pattern

you know... theres software that can to this with mp3s you fucktard

why do you fucking morons have to use an arduino for everything when theres simpler less involved ways to do things.. you dont need a fucking meme computer to do anything you suggest. shit

>>1508577
Interesting idea
Microstepping. A stepper driver like the A4988 will do 1/16 steps
If you use a stepper with 200 steps/rev(1.8°) it gives you 200*16 = 3200 steps
Circumperence of a ~12" record is 12*3.14 =37.68"
37.68"/3200 steps ~= .012" or about 30 micron for a step distance on the largest part
Seems like that would be plenty good resolution (83 steps/Inch)
Saw posts about another driver in the /3DPG/ general that would do 1/32 steps and was much quieter. Or you could gear it down for even higher resolutions
Theres also currently an arduino general that might interest you

>>1508624
>There's software for that
I know

>Why use arduino at all for anything ever?
Because it's easier to spend $3 and half an hour in front of a text file than to spend an unknown amount of time and money on a solution that ends up taking more parts and tuning, just so I can sit in front of a text file for half an hour.

I use arduinos for one off projects because my time is worth more than 3$ an hour. I'm sorry that you feel you have to design ::everything:: from the ground up, but don't worry; your time will be worth more than $3/hr someday...

Thanks again for the response!

>>1508691

>being this butthurt because someone can do something simpler without a meme device

>>1507635
>>1507636
>>1507751
>>1507794
>>1508222
>>1508492
Thank you for the advice everyone. I actually found out the problem a few minutes after I posted and thought I had deleted the thread, guess it didnt go through.

Anyway, I opened the back and undid the fasteners that held the turntable in place. with the lightest brush of my arm, the power cable to the turntable just fell off. I was surprised by how easily that fell off and I pushed it back into the connector. I plugged the stereo back in and started the turntable and it powered right up! I assume all these years the cable was just barely connected, and when we moved the stereo to my house, the movement must have disconnected the cable just enough to no longer give power to the record player but stay in place.
I took some twist-ties and fastened the power cable snug to its connection and overall the record player works great now.

Now that I know that the turntable works, next step is to look into cleaning and oiling it up I suppose. alternatively, could I put a newer turntable in it that isn't a threat to my records? For now I guess Ill just play my duplicate records that Im not too worried about.

I was also debating doing more restorations to it as well, like sanding it down and refinishing it and replacing the speaker fabric, etc. Think I should do it or keep it original as possible? Ill post a pic of it in a minute.

Here’s a shot from the front. The speakers have this odd straw-like material woven into the fabric that covers the speakers. Over the years it getting all freyed and I was considering how to replace it.

>>1508730
Wow, are you like 12? Complete with the "You mad bro" meme! Awesome!

I am curious how you think you could possibly make it easier though. You gonna design a pcb from scratch for a one time project? Go right ahead! I spent years doing professional pcb design, and I probably wouldn't be able to design a custom board to host a microprocessor in less than an hour. Not to mention whether you make or order the custom pcb, it's going to cost you more than $3.

Seriously, explain to me how you would do this project "simpler."

>>1508691
>>Why use arduino at all for anything ever?
>Because it's easier
If it's so friggin' easy why are you shitting up someone else's thread with questions about it.
>I put a period instead of a question mark because I don't want an answer.

>>1508749
>like sanding it down and refinishing it
Old English furniture polish. (no sanding)
>>1508749
>and replacing the speaker fabric
Yeah, it needs new fabric.
Try to find as close as possible a match to use for replacement.

>>1508804
I don't have any questions about how to use an arduino in this project. My question was regarding dampening the wobble that will be produced by a stepper motor.

>>1508820
>dampening the wobble that will be produced by a stepper motor
heavy platter

>>1508759
Cloth covers on speakers were common back in the day. Some places sell replacement material and it is normally pretty easy to replace yourself.

>>1508808
Actually feed and wax is better.

>>1507617

Just get a can of semi gloss finish and apply with a small artists brush to the spots of missing finish. Knock it back level with 2000 grit sand paper. Follow up with Feed and Wax.

A seller on eBay (and I think he’s on Esty) sells antique radio grill cloth, he has several that are very close matches.

Regease the turntable and get it going, order a new cartridge/needle.

>>1507773
Driving your car destroys it. Walking destroys your body.

>>1507617
Can you hear the motor when you switch it on? If not, then it's dead and it may be as simple as a broken wire or it may be worse. If you can hear the motor turn on but the plate won't spin the belt may have come loose or broken and just needs to be replaced or put back on. Assuming it's belt drive and not direct drive.
Honestly ther's a pretty big turntable community on youtube so you might check for 'retro turntable repairs' on there and see if anyone has similar issues. Even if you don't find a vid of your exact issue just watching them take similar machines apart might be insightful.

>>1507636
>decent needle
>hard to source
They are literally developed new in this day and age. There are some different standards but there is a degree of universality. Higher end ones are expensive but 'good enough' (i.e. can't hear the difference when you don't have audiotism) can be had brand new for mere tens of dollars

>>1507617
Probably better off stripping a similarly sized Craigslist turntable of its plinth and putting it in there. Also never use that automatic record changer function (the weird long axle and that small arm), it will scratch your vinyl

>>1508759
>>1508868

You could replace it with some burlap stretched taut, won't be the same but it will match the 50s/60s style and look authentic, as it was often used as speaker cover fabric in those days

>>1509905
Why? He can purchase A very close replacement. (British Style Black and Tan Grill Cloth).

>>1509917
Oh kek, well then he should do that, just thinking out of the top. of my head here, burlap would be cheap and accessible but a closer match would have preference of course

>>1508749
>12/03/18(Mon)17:41:04
>I actually found out the problem
>>1509793
>12/05/18(Wed)10:09:52
>Can you yadda, yadda, yadda...

Can you read the thread before offering advice?