Question about Pioneer PL-990 Turntable

1 Answer

Repairing my turntable PLL direct drive 570 fully automatic was not working properly, it does not move and needs replacement of IC for motor rotation. Please solve my problem

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

Try putting 1 only,drop of sewing machine oil on motor at shaft and let it soak in while manually rotating shaft being careful not to get oil on anything else and see if this helps.

Posted on Jul 30, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Numark TT1520 direct drive not working


You certainly can replace the drive IC as mentioned above, however there may be dozens of other items that can cause the same issue. Here are some; bad regulator ICs, pull down resistors for the power supply or the drive IC, capacitors in the regulated power supply.....the list goes on and on. You most definitely must take ESD precautions(Electrostatic Discharge). Without taking these precautions, you may destroy the parts you are replacing, before you even put them in! You must be able to perform fine soldering to replace any of these parts.
For more information, please visit my website, audioserviceclinic.com.You may contact me directly through the website.
Thank you.

Apr 20, 2014 | Numark TT1520 Turntable

2 Answers

Microwave lights, clock, and everything works except when you press start, it just counts down like its cooking, but the microwave is actually not on. No hum as usual or plate rotating. It just counts...


Hi, one of the most common reasons why the turntable won't rotate is that the microwave isn't clean. The turntable guide and carousel can get sticky, preventing the turntable from properly moving. If you have built-on food particles or liquids, fill a bowl with 2 or 3 cups of water and 1 tsp. of liquid detergent and lemon. Run the microwave for about 3 minutes. Clean the microwave with a cloth, including the base of the turntable, guide, carousel grooves and microwave base. Your microwave turntable won't rotate if the grooves on the base of the turntable do not sit right on the carousel. Also, check the position of the turntable guide. Place the guide directly under the turntable. Remove the turntable, and then reposition it into the carousel grooves.
Motor The carousel motor is located beneath the base plate of the microwave. If the carousel isn't turning at all, check the motor. Disconnect the microwave from the power source, and remove the turntable, guide and base plate. Try turning the motor to see if it's just stuck. If it doesn't turn freely after a few seconds, examine the motor to see if it's burned out or corroded. Use an ohmmeter to see if the motor has continuity. If not, you must replace the motor.
Bushings The drive bushings are plastic components that sit underneath the cooking plate. Remove the plate, and examine the bushings. Use a magnifying glass if necessary to see if any debris is caught in the plastic. Clean the bushings, and reinsert the plate. Turn the microwave on to see if it rotates. If the bushings are extremely worn or if some of the plastic is broken off, you need to replace it, which is a complicated repair for consumers. Contact a service technician for assistance.

May 07, 2011 | Amana Radarange Microwave Oven

1 Answer

My microwave is still working but not rotating, what is wroong with it


There's a turntable motor in the bottom of the oven that drives a turntable support directly in some models, and a plastic coupling that rotates the turntable in others. Turntable motor failure is common, or there could be connections in the power to the motor that have gone bad. Sometimes the plastic of the turntable coupling cracks, and the motor shaft turns but the turntable doesn't.

You can check a turntable motor with an ohmmeter. A good motor will show fairly low resistance (a few hundred ohms or less) between its terminals, while a very high or infinite reading means it's bad. In most models of oven you get at the motor through and access panel on the bottom. Replacement motors for many brands are available, although they're not always easy to find.

It may be more economical to replace the oven if it's a basic counter top model. They are under $50 these days, and a replacement motor might cost $20 or more. Of course, you can continue to use the oven even if the turntable doesn't, you'll just need to turn the food yourself occasionally during cooking.

Hope this helps. Thanks for using Fixya!

Mar 08, 2010 | Microwave Ovens

2 Answers

My Numark TTX Turntable turns on but wont spin when i hit the play button


It's probably the motor drive IC Chip.

Send it to us for speedy, cheap repair.

http://www.reflexdjsuperstore.com/Service-and-Repair-p11441/



Jul 12, 2009 | Numark TTX1 Turntable

1 Answer

JVC - problem. The turntable does not move,


Most modern day turntables are semi-automatic. You move the tonearm from the rest post
over to the record and the platter will start turning. There is a small microswitch inside
either below the arm base or near. There should be a flat bar connected to the base of the arm
and this will actuate the microswitch. The switch is wired in series to the rotation motor.

Solution: 1. Obviously verify the belt is on. Take off the rubber mat and rotate the platter.
The rotation motor is on the left and it has a small brass spindle. The belt should
be visable through the holes in the platter. If not pull the platter gently up, there will
be some resistance. The belt wraps around a smaller inner ring on the underside
of the platter and the rotation motor spindle. If it is degraded it will be stuck to the
platter or fall apart. Generally there 3 common sizes. ( 21.4 / 23.6 / 25 inch) they
readily available on E-Bay, search term "turntable belt".
2. Obviously check power.
3. Check the microswitch, it should "click", verify with ohm meter.
4. Some turntables have a "cut" or stop function. The arm must return first to rest before
starting again, again the microswitch is the trigger.

Apr 07, 2009 | JVC AL A158BK Turntable

3 Answers

Turntable does not rotate when switched 'on'.


Throw it from a second story window then smash it with a sledgehammer. That's what I plan to do with mine.

Feb 08, 2009 | RCA ION-ITTUSB05 Turntable

2 Answers

Platter changes directions or stops


More than likely either an issue with an IC (integrated circuit) on the main PCBoard such as IC301 (Pitch Control IC) or one of the Regulators like Q2 and Q3. While your at it, you might want to check IC201 (Turntable Control IC), and IC101 (Turntable Drive). Doesn't sound like anything is busted just yet, if it comes and goes. This means something is about to fail, and your just seeing the failure in action.

Good luck.

- OPTiC

Technics Repair Videos
Technics DJ Repair
Technics Parts
DJ Parts
DJ Equipment Sales
Audio Video Accessories

Feb 01, 2009 | Technics SL-1200 Turntable

2 Answers

The belt on my turn table came lose


01- Remove the rubber cushion.
02- Remove the Turntable Platter
03- Place your drive belt around the ridge inside the platter
(Make sure that it is not twisted)
04-Place your Turntable Platter back on the unit
05-rotate your platter until you can see a brass knob through one of the round holes in the turntable. (Your belt must be placed around the brass knob) The best way is to take a toothpick and carefully slide it under the drive belt and then pull it out enough that you can place it around the knob. I had the same problem and the above works. If you still have problems getting it back on contact me 352-377-1828......

May 03, 2008 | Teac P-A688 Turntable

2 Answers

Numark TTX Turntable


Just so you know, there is no actual 'motor' driving the platter. It's a direct drive unit, so it's made up of various circuits driving the unit.

With that said, anyone of those circuits could have gone bad. The good thing, is that most of the circuits (resistors, IC's, capacitors, diodes, etc), are relatively cheap ($2-10), the bad thing is replacing them, and finding out which ones are faulty. You could usually tell which resistors are burnt or caps are blown, but it's harder to test the IC's without the proper equipment.

This is not a cheap turntable, unless you think $300 is cheap for a turntable. Repair wise, your probably looking at about $80-120 for parts and labor. It's a well build turntable, and I think worth investing in trying to get it repaired. Just make sure you get an estimate before any work is done.

- TWEAK AV LAB

Nov 26, 2007 | Numark TTX Turntable

Not finding what you are looking for?
Pioneer PL-990 Turntable Logo

Related Topics:

189 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5190 Answers

John
John

Level 2 Expert

509 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

Are you a Pioneer Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...