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Author Topic:   Broken Record (Player)
Jon
Inactive Member


Message 1 of 32 (636201)
10-04-2011 5:04 PM


Something is wrong with my record player
It doesn't spin fast enough. It is going just a wee bit too slow, but it is enough to notice. I have tried various repairs with little success.
A while ago it was having this problem when I first got it and so I replaced the belt with a rubber band, and that fixed it just fine. But then I got some 45s, and the rubber band solution caused them to play at the wrong speed, so I put the original belt back on it and all was fine for the 45s. Now I have some 33s I want to listen to and they spin too slow with the original belt, but even the rubber band isn't completely fixing the problem now (if it ever was fixed, since the 33s I had previously listened to were instrumental a small lag wouldn't be as noticeable, but these have plenty of vocals and so sound pretty terrible).
I would just go buy a used one, but the stores don't have any right now, and I don't want to wait forever till they have one available. So, here I am, asking the good folk at EvC, who showed themselves knowledgeable in all things vacuum related, if anyone might know how I can fix my record player.
Jon

Love your enemies!

Replies to this message:
 Message 2 by fearandloathing, posted 10-04-2011 5:05 PM Jon has replied
 Message 3 by Panda, posted 10-04-2011 5:33 PM Jon has replied
 Message 26 by Aware Wolf, posted 10-06-2011 12:27 PM Jon has not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 2 of 32 (636204)
10-04-2011 5:05 PM
Reply to: Message 1 by Jon
10-04-2011 5:04 PM


What kind of turntable?

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 1 by Jon, posted 10-04-2011 5:04 PM Jon has replied

Replies to this message:
 Message 5 by Jon, posted 10-04-2011 5:41 PM fearandloathing has replied

  
Panda
Member (Idle past 3733 days)
Posts: 2688
From: UK
Joined: 10-04-2010


Message 3 of 32 (636207)
10-04-2011 5:33 PM
Reply to: Message 1 by Jon
10-04-2011 5:04 PM


Is the band slipping slightly or is it definitely the motor turning too slowly?

Always remember: QUIDQUID LATINE DICTUM SIT ALTUM VIDITUR
Science flies you into space; religion flies you into buildings.

This message is a reply to:
 Message 1 by Jon, posted 10-04-2011 5:04 PM Jon has replied

Replies to this message:
 Message 4 by Jon, posted 10-04-2011 5:40 PM Panda has seen this message but not replied
 Message 6 by fearandloathing, posted 10-04-2011 5:43 PM Panda has seen this message but not replied

  
Jon
Inactive Member


Message 4 of 32 (636209)
10-04-2011 5:40 PM
Reply to: Message 3 by Panda
10-04-2011 5:33 PM


The rubber band is on there pretty tight, so I doubt it's slipping.

Love your enemies!

This message is a reply to:
 Message 3 by Panda, posted 10-04-2011 5:33 PM Panda has seen this message but not replied

Replies to this message:
 Message 9 by Theodoric, posted 10-04-2011 5:58 PM Jon has not replied

  
Jon
Inactive Member


Message 5 of 32 (636210)
10-04-2011 5:41 PM
Reply to: Message 2 by fearandloathing
10-04-2011 5:05 PM


What kind of turntable?
As in brand?
It's a GPX. Real cheap thing.

Love your enemies!

This message is a reply to:
 Message 2 by fearandloathing, posted 10-04-2011 5:05 PM fearandloathing has replied

Replies to this message:
 Message 7 by fearandloathing, posted 10-04-2011 5:44 PM Jon has replied
 Message 11 by Theodoric, posted 10-04-2011 6:06 PM Jon has not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 6 of 32 (636211)
10-04-2011 5:43 PM
Reply to: Message 3 by Panda
10-04-2011 5:33 PM


I have a higher end Technics SL 1200, I can adjust the speed with a slide adjustment. Consumer grade ones will have variable resistors that can change the motor speed, you just have to know which ones to adjust and feel comfortable doing it. The original belt should be used unless it needs replacement, the tension of a rubber band is going to probably be different and will change over time, as where the original belt is designed to remain stable.

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 3 by Panda, posted 10-04-2011 5:33 PM Panda has seen this message but not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 7 of 32 (636212)
10-04-2011 5:44 PM
Reply to: Message 5 by Jon
10-04-2011 5:41 PM


I will see if I can help you find the right variable resistors to adjust if you are up for it?

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 5 by Jon, posted 10-04-2011 5:41 PM Jon has replied

Replies to this message:
 Message 8 by Jon, posted 10-04-2011 5:55 PM fearandloathing has replied

  
Jon
Inactive Member


Message 8 of 32 (636213)
10-04-2011 5:55 PM
Reply to: Message 7 by fearandloathing
10-04-2011 5:44 PM


I will see if I can help you find the right variable resistors to adjust if you are up for it?
Sure; it's my brother's player, but if I can fix it without breaking it more, then no harm will be done.
Do I have to open up the casing? And how will I know how to adjust them?
Also, something is a little bent, and the turntable wobbles up and down pretty bad. It never caused a problem when the records were spinning at the right speed, but maybe it has something to do with this.
Jon

Love your enemies!

This message is a reply to:
 Message 7 by fearandloathing, posted 10-04-2011 5:44 PM fearandloathing has replied

Replies to this message:
 Message 10 by fearandloathing, posted 10-04-2011 6:03 PM Jon has replied

  
Theodoric
Member
Posts: 9140
From: Northwest, WI, USA
Joined: 08-15-2005
Member Rating: 3.3


(1)
Message 9 of 32 (636214)
10-04-2011 5:58 PM
Reply to: Message 4 by Jon
10-04-2011 5:40 PM


I dont think the rubber band option actually fixed your prob. I haven't had a turntable in years but at one time I had nothing but higher end turntables.
Belt driven turntables are designed to have a specific tension on the belt. Therefore, a specific belt. A rubber band is not a perm or good solution. If you put on a rubber band tight enough to work you may be putting too much sideways pressure on the spindle coming out of the motor. A turntable belt is not elastic so it is under a designed a mount of pressure and putting a designed amount of pressure on the turntable. A rubber band would exert more pressure as it is elastic. You would not think it makes much of a difference, but the turntable must operate under specific speeds and pressure in order for the motor turn the platter at a specific speed.
It sounds as if the motor is dying or the rubber band is slipping due to its elasticity. There is probably no fix other than a new motor. So in other words a new turntable.

Facts don't lie or have an agenda. Facts are just facts

This message is a reply to:
 Message 4 by Jon, posted 10-04-2011 5:40 PM Jon has not replied

Replies to this message:
 Message 12 by fearandloathing, posted 10-04-2011 6:11 PM Theodoric has not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 10 of 32 (636216)
10-04-2011 6:03 PM
Reply to: Message 8 by Jon
10-04-2011 5:55 PM


Also, something is a little bent, and the turntable wobbles up and down pretty bad. It never caused a problem when the records were spinning at the right speed, but maybe it has something to do with this.
Probably so...But yes you would need to take the bottom cover off once I figure out what needs to be adjusted.
1st it sounds like the wobble problem is what is the true culprit.
Having said that let me get a model# if you can, with a little luck there will be a sticker on the bottom.

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 8 by Jon, posted 10-04-2011 5:55 PM Jon has replied

Replies to this message:
 Message 13 by Jon, posted 10-04-2011 6:30 PM fearandloathing has replied

  
Theodoric
Member
Posts: 9140
From: Northwest, WI, USA
Joined: 08-15-2005
Member Rating: 3.3


(1)
Message 11 of 32 (636217)
10-04-2011 6:06 PM
Reply to: Message 5 by Jon
10-04-2011 5:41 PM


It's a GPX. Real cheap thing.
Yeah real cheap. It probably wasn't running at the correct speed right from the factory. I wouldn't be surprised if you continue to have the same problem with an original replacement belt.
My advice. if you want to actually listen, I mean listen, to records spend the money on a half way decent turntable. If you don't want to do that stick to digital.
My hearing is bad enough that I just listen to digital(but highest quality, flac at home and mp3 320 kbit/s in the car). I can no longer pick up the nuances in music that I so enjoyed when I would compare digital to analog.

Facts don't lie or have an agenda. Facts are just facts

This message is a reply to:
 Message 5 by Jon, posted 10-04-2011 5:41 PM Jon has not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 12 of 32 (636218)
10-04-2011 6:11 PM
Reply to: Message 9 by Theodoric
10-04-2011 5:58 PM


There is probably no fix other than a new motor. So in other words a new turntable.
No. The motor speed can be adjusted through variable resistors. (I work on, repair/modify, radio and other electronics from time to time)
The wobble is the real problem, bad bearing or something like that.
Edited by fearandloathing, : No reason given.

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 9 by Theodoric, posted 10-04-2011 5:58 PM Theodoric has not replied

Replies to this message:
 Message 15 by Jon, posted 10-04-2011 6:37 PM fearandloathing has replied

  
Jon
Inactive Member


Message 13 of 32 (636219)
10-04-2011 6:30 PM
Reply to: Message 10 by fearandloathing
10-04-2011 6:03 PM


I put the original belt back on and it sounded even worse... It started out really slow and then sped up slightly, but not enough.
According to the back it is a Gran Prix, model S3550 E68496, SN: 00049488, and was manufactured in 1991 (if I'm reading the date code correctly).
I guess they call it a 'mini' turntable, which I guess makes sense, since it's so dern small.

Love your enemies!

This message is a reply to:
 Message 10 by fearandloathing, posted 10-04-2011 6:03 PM fearandloathing has replied

Replies to this message:
 Message 14 by fearandloathing, posted 10-04-2011 6:37 PM Jon has not replied

  
fearandloathing
Member (Idle past 4165 days)
Posts: 990
From: Burlington, NC, USA
Joined: 02-24-2011


Message 14 of 32 (636220)
10-04-2011 6:37 PM
Reply to: Message 13 by Jon
10-04-2011 6:30 PM


Like Theo said, it might be the motor.
The wobble is what I am going to look into first though. Wobble would hurt the motor and compromise the speed also. LOL... if nothing else you get to see how things work. ...repair options are limited on most consumer grade electronics.

"No sympathy for the devil; keep that in mind. Buy the ticket, take the ride...and if it occasionally gets a little heavier than what you had in mind, well...maybe chalk it off to forced conscious expansion: Tune in, freak out, get beaten."
Hunter S. Thompson
Ad astra per aspera
Nihil curo de ista tua stulta superstitione.

This message is a reply to:
 Message 13 by Jon, posted 10-04-2011 6:30 PM Jon has not replied

  
Jon
Inactive Member


Message 15 of 32 (636221)
10-04-2011 6:37 PM
Reply to: Message 12 by fearandloathing
10-04-2011 6:11 PM


The wobble is the real problem, bad bearing or something like that.
It wobbles even when the belt is not on. And the wobble seems to come from the actual spinning disk itself, and not from the rod the disk is mounted on.
If the wobble is the real problem and if the plastic is warped, then I'm not sure what I could do to fix it

Love your enemies!

This message is a reply to:
 Message 12 by fearandloathing, posted 10-04-2011 6:11 PM fearandloathing has replied

Replies to this message:
 Message 16 by fearandloathing, posted 10-04-2011 6:42 PM Jon has replied

  
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