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Sony PS-LX520 Help

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Sony PS-LX520 Help

Postby Aluminumfalcone » 19 Apr 2010 05:43

I had been having trouble with my Sony PS-LX520 for a while. When I try to move the tonearm, it sticks, causing my records to skip. When I tried to disassemble it to see what was wrong, I un-did the arm belt, but I do not know the winding pattern to re-assemble the unit. I looked online for a service manual but they all cost money. Does anyone have any help for me? either give me the correct arm belt winding pattern or point me in the direction to a FREE service manual. Thank you.
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Re: Sony PS-LX520 Help

Postby fscl » 20 Apr 2010 03:49

Aluminumfalcone wrote:I had been having trouble with my Sony PS-LX520 for a while. When I try to move the tonearm, it sticks, causing my records to skip. When I tried to disassemble it to see what was wrong, I un-did the arm belt, but I do not know the winding pattern to re-assemble the unit. I looked online for a service manual but they all cost money. Does anyone have any help for me? either give me the correct arm belt winding pattern or point me in the direction to a FREE service manual. Thank you.


Alfalcone,

Welcome to VE...... :)

Is this your unit:
Image?

If so, you can try using the service manual in the VE Library for the PS-LX55 as a reference:

http://www.vinylengine.com/library/sony/ps-lx55.shtml

The tonearm looks very similar. The tonearm drive belt is a small o-ring, there's also a picture of the "Tonearm Drive Cord Stringing" on page 15 of 29.

Good luck.

Fred
Music is Everything....Except Predictable....WFUV Fan.
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Probably rplace small drive belt

Postby pgloor » 08 Jan 2011 22:11

I had the same problem and a review of forums and my experience with my own fix indicated that this is almost certainly your problem:

The roughly 2.6 inch (circumference) drive belt (that connects a tiny motor to the worm screw that moves the tone-arm laterally when it gets the signal) likely needs replacement. Mine was intact but old and rigid enough to keep slipping or hang up the tiny motor. Unplug the unit - take out the 8-10 screws to take off the bottom - remove this little belt - scrub the pulleys with tripled up sewing thread, and replace with new belt. This is a good source:

http://www.turntableneedles.com/Square- ... p_227.html

$6.50 (paypal available) for 2 belts to reach their minimum, free shipping, arrived in 2 days.

You might also want to clean and lightly grease the rail that the tone arm rides on, but this is unlikely to fix the problem without a replacement belt.
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Postby pgloor » 09 Jan 2011 14:12

Yep - Just did the repair and it was as stated above. Had exactly the same problem you have and changing this tiny drive belt was the fix. I add more details and another source to find this belt:

I had the same problem and a review of forums and my experience with my own fix indicated that this is almost certainly your problem:

The roughly 2.6 inch (circumerence) drive belt (that connects a tiny motor to the worm screw that moves the tone-arm laterally when it gets the signal) likely needs replacement. Mine was intact but old and rigid enough to keep slipping or hang up the tiny motor. Unplug the unit - take out the 8-10 screws to take off the bottom - remove this little belt - scrub the pulleys with tripled-up sewing thread, and replace with new belt. This is a good source:

http://www.turntableneedles.com/Square- ... p_227.html

$6.50 (paypal available) for 2 belts to reach their minimum, free shipping, arrived in 2 days.

You might also want to clean and lightly grease the rail that the tone arm rides on, but this is unlikely to fix the problem without a replacement belt.
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Re: Probably rplace small drive belt

Postby golddave » 10 Mar 2011 18:07

pgloor wrote:I had the same problem and a review of forums and my experience with my own fix indicated that this is almost certainly your problem:

The roughly 2.6 inch (circumference) drive belt (that connects a tiny motor to the worm screw that moves the tone-arm laterally when it gets the signal) likely needs replacement. Mine was intact but old and rigid enough to keep slipping or hang up the tiny motor. Unplug the unit - take out the 8-10 screws to take off the bottom - remove this little belt - scrub the pulleys with tripled up sewing thread, and replace with new belt. This is a good source:

http://www.turntableneedles.com/Square- ... p_227.html

$6.50 (paypal available) for 2 belts to reach their minimum, free shipping, arrived in 2 days.

You might also want to clean and lightly grease the rail that the tone arm rides on, but this is unlikely to fix the problem without a replacement belt.


I'm having the same problem and want to try some options before spending money and/or opening up the unit (I'm afraid I'll break it). When you say "lightly grease the rail" what kind of grease?
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Re: Sony PS-LX520 Help

Postby thecoloroflight » 30 Jan 2012 16:40

I was recently given this turntable so I could digitise some of my friend's records for him. I haven't done this in years -- have just been listening to records, but no recording of them -- and I can't remember a few things.

My first question relates to this turntable :
I see no grounding wire. All the wires that come from the back are RCA and a power cable. I do see a small blue hole. Perhaps a grounding wire used to come from that. Any thoughts ? Even if I were to fashion my own grounding wire, there really isn't too much metal back there on which to connect a wire. The hinges are all... and they look like more like a composite metal material.

Second question :
For some reason I just cannot remember how to hook the record player to the phono-in on my receiver, and then output it to a computer line-in. Do I use a tape-out from the receiver for that signal ?

Thanks kindly and take care !
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Re: Sony PS-LX520 Help

Postby Alec124c41 » 31 Jan 2012 06:10

The tape-out will work quite well.

Cheers,
Alec
Keep them spinning.
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Re: Sony PS-LX520 Help

Postby PWhite214 » 03 May 2012 05:40

I just purchased a Sony PS-LX520. The tone arm would not move at all. I cleaned the bar that the tone arm slides on, which helped. One or two places I still had the tone arm 'sticking'. More cleaning and a light application of oil did not solve the problem.

Using the PS-LX55 service manual (from here) as a guide, I opened up the unit and removed the belt. I cleaned the pulleys and belt. I now have full travel with no problems.

Thanks to everyone posting on this unit.

Phil
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