I have an old JVC L-A120 turntable. I finally got around to ordering the belt for it, but now that I've gotten it installed (correctly, I might add), it's still not working. The drive pulley rotates if it's uninhibited, but once I put the belt on, it stops completely. Is it possible the motor's going bad? Do I need to oil it? (And if so, what exactly is involved?) I don't really want to put much money into this (it's just my parents' old turntable), so please let me know if you have an idea of how much this may cost me to take care of.
Thanks so much for any help you can offer!
I just worked on a unit with the same problem. The spindle bearing will seize up if it is not oiled at least once a year. Take off the feet and split the top and bottom. Remove the three screws that hold on the spindle. Remove the E clip that holds on the gear. Put it in a vise and press off the gear and remove the shaft. Thoroghly clean off the shaft and the bearing. Lub with 3 in 1 oil and reassemble.
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The platter on the JVC LA-10 does not come off as most turntable platters do. It is attached to the spindle with a Philips head screw.
Here are the steps:
Remove dust cover from turntable. Unscrew hinges and lift.
00.jpg" alt="Remove dustcover at hinges.">Remove dustcover at hinges.
Secure tonearm to prevent stylus damage.
00.jpg" alt="Secure the tonearm.">Secure the tonearm.
Remove slipmat from platter.
00.jpg" alt="Remove slipmat.">Remove slipmat.
Turn the turntable on its side and remove screws that hold the top to its base. Remove platter by unscrewing the bottom plate from the turntable. The spindle bearing is held in place with a Philips head screw. Loosen it and the platter will separate easily from the spindle.
00.jpg" alt="Separate the spindle from the platter by loosening with a Philips head screwdriver.">Separate the spindle from the platter by loosening with a Philips head screwdriver.
To replacea turntable drive belt.Copyright.. Styluscity.com, JohnHarrison. Nov 2011Before starting any work on yourturntable disconnect it from the mains power supply.Remove the stylus or completeheadshell to prevent any accidental stylus damage.1. Remove the rubber platter mat toexpose the platter. 2. Put your thumb and forefinger through the two round holes either side of thecentre spindle and lift the platter off. You may need to give the centrespindle a light tap (whilst applying upward pressure) with a screwdriver handleor some similar tool that will not leave any marks or damage. 3. Remove the old belt and wipe the platter and motor pulleys with an alcoholswab to remove any old belt residue. 4. Place the new belt around the platter pulley making sure it is sitting flatwithout any twists. 5. Flip platter over the right way up. Acorrect fitting belt will stay put and an over belt will fall off.6. You will see 1 or 2 largerectangle or square shaped cut outs in the platter near to the outer edge. Throughone pinch up the belt and slip a finger or belt hook between the platter pulleyand the belt gripping the belt ready to fit over the motor pulley. 7. Align the centre hole of the platter with the spindle and place platter backinto position keeping a grip on the belt. 8. Slip belt over motor pulley and give the platter a light clockwise rotationto ensure the belt is riding correctly. 9. Replace the rubber mat and then run the turntable to ensure correctoperation.MUSIC IS LIFE, LIVE IT LOUD.Styluscity.com cansupply replacement drive belts for all turntables
This turntable is a belt driven type. The belt wraps around the underside of the platter and the drive motor spindle. If the belt has slipped off, broken or is so old that it is slipping - the platter will not turn. Usually you can remove the rubber cover on the top of the platter to use access openings beneath to put the belt back on.
The turntable product brochure, owner's manual and related info is available from Pioneer, here.
Lift felt on platter and and lift the platter section off the unit by putting your thumb and forefinger through the two large holes and pull upwards.There should not be any special routing for the belt and should go directly onto the spindle motor to your platter. Place the belt around the inside rim of the platter while it is still off the unit. Now replace the platter and move the platter around until you see the spindle motor through one of the holes. Use some tweezers to manouvre the belt onto the spindle motor. On some units you will have to lay the belt out inside the unit, replace the platter and manouvre the belt onto the platter. Hope this helps
You will have to lift the platter section off the unit itself. Check for the spindle motor turing the table and lay the belt out around the spindle motor. Refit the platter and work the belt around the inside of the platter through the two large holes in the tray.
It's pretty easy to change a belt on a turntable. Lift off the rubber mat and platter (the round part that turns) and you will see the motor on the deck. The platter has a rim underneath where the belt goes.
The platter should have some holes in the top of it and this will help you to put the belt on to the motor pulley.
First, put the belt on the rim of the platter. Hold the belt tightly through the hole in the platter and put it onto the centre spindle. Locate where the motor is and put the belt around the pulley - DONE!
As for getting a belt any good hifi dealer/service centre or Radio Shack outlet should be able to help you - it is after all - only a rubber belt! (:-)
I believe the platter simply lifts straight up off the spindle. Put the new belt on the platter and reinstall it. Then, working through the access hole in the platter, put the belt around the motor drive shaft. Rotate the platter a couple of revolutions to make sure everything's seated properly and you should be back to spinnin' the hits in no time!
I have just fixed this problem on my Aiwa PX3800 with improvisation. The platter was rotating too slowly, I didn't know how much too slow only that the records sounded wrong. I imagined the belt, motor and platter as a bicycle gear and so simply increased the gear... I achieved this by winding a thin strip of a electrical insulation tape around the motor head to increase it's radius (like changing up to a larger front cog on a bicycle gear). I could then time the rotations and remove a layer or two of the tape accordingly until I have achieved a perfect 45rpm. 33 is still way out but I only listen to 45s! Be sure to trim excess tape from the motor head with a craft knife/scalpel or it'll stick to the platter. Poor man fix up.
The trick is to lift up on the platter (tothat metal on metal feel that you had) while simtaneously "lightly" tapping on the top of the shaft with a hammer. Trust me it will work as just changed my belt.
Hope that helps.