Motor problem? The platter spins at the correct speeds, but are very sensitive to the touch. They come to a complete stop after only slight pressure! This problem occurred after a party when some coke spilled onto the turntable.

Try replacing the drive belt. Look under the platter for a 'rubber band' that would connect the platter to a drive motor. I bet it's loose. My other idea is crazy, however, they do sell an item called a "variac" which has a knob to control the voltage to the player. It's big and bulky and not worth the trouble. I'm a musician so I have to have a player up to speed or slightly detune my guitar. Good luck..

I don't think it's likely that the motor is in trouble just by having the belt wrong. It would require more physical damage to cause the motor to play up. Having said that the motor could have been in trouble before you touched the belt. But you do need a new belt, all you need to do is measure the diameter of the belt in mm. You might also need to measure the width. To find a new belt put the words "turntable drive belt XXmm" into Google. You can add Crosley to the start, but many belts are universal. Your measurements don't need to be spot on with the diameter, so if you have measured it at say 95mm, a 90mm to 100mm belt will do the job. However fitting the new belt is a different matter. You need to know the correct way, or the speed might be wrong. I can't help you with the fitting of it, so you will need to check how to do it. Some makes have YouTube videos of the fitting. I would just look for Crosley and see if any look like your model.

If fitted correctly and there's a problem with speed still, then you should look more closely at the motor.

you might try lifting the platter off and putting a drop or two of light machine oil on the spindle. cleaning the motor might help also.

Is this a belt driven model? If so then just replace the belt. Also check that platter can turn. Sometimes grease or dirt builds up. If you can't turn it by hand then neither can the motor.

If you can turn the platter easily by hand, then so should the motor. You can also disconect the power leads to the motor and hook up a PP9 9 volt battery to it. If it\'s slow and easily stopped from rotating then there\'s nothing wrong with the power to the motor and the motor is bad!

Oh I know! Pick me, pick me! (Lol!)


You mean WCD-44-rm5?

Spindle test. Actually finding out if the spindle motor is spinning the Spindle, at the maximum spindle speed in RPM's, the spindle is rated to spin at, (At maximum spin up)
Also a few other quick tests.


!O_O!

Basic construction of your harddrive. IDE (PATA) or SATA;

Inside the harddrive's case are;

1) Platters: They resemble CD or DVD disks, and are usually made of metal, or glass.

The Platters are coated with a magnetic medium. (Ferrous substance. Think Iron )
There may be 3 to 6 Platters, or more, inside the harddrive case. They are coated on both sides with the magnetic medium.

2) Spindle, and Spindle Motor:
The Spindle is part of the Spindle Motor. It is the shaft of the motor.
Comes out of the Spindle Motor, and the Platters are attached to it.

The Spindle Motor is designed to spin the Spindle (Shaft) certain Revolutions Per Minute, when called upon.
The maximum RPM's it will spin is stated for the harddrive unit.

Older harddrives were rated at 5400RPM.
(Slower before the above time period)
Newer harddrives usually spin up to 7200RPM.
Gamer type harddrives may spin 10,000 or 15,000 RPM's.

http://www.behardware.com/articles/727-1/western-digital-velociraptor.html

3) Read/Write Head:
The magnetic medium on the Platters, is arranged by a Read/Write Head.
There is a Read/Write Head above, and below, every Platter inside the Harddrive.

The name indicates what the Read/Write Head does. When the Read portion of the head is activated, it reads what is ON the Platter.
When the Write portion is activated, it writes TO the Platter.

(The magnetic medium is arranged, by the Write portion of the Read/Write Head. It is arranged in a series of 0's and 1's.
0 being OFF, 1 being ON.
This is changed into Machine Language the computer can use )

4) Actuator Arm:
The Read/Write Heads are attached to an Actuator Arm.
The arm swings the heads back, and forth, across the Platter's surface.
(When called upon it can swing the Read/Write Heads back, and forth, at HUNDREDS OF TIMES A SECOND. -> HUNDREDS )

5) The Actuator Arms are attached to an Actuator Motor.

The entire assembly above is encased in a.....case.
It is assembled in a Clean Room. A room that is 99.9 percent dust free. The outfits the assembly technicians have to wear resemble a NASA space suit. They have to walk through an air corridor, and be b-lown off by air jets, before they can enter the Clean Room.

The harddrive's case has a small filter on it. This helps keep the atmosphere inside the harddrive, as it is outside the harddrive, but with NO moisture, NO dust.

On the bottom of the Harddrive case is an electronic circuit board. Controls the hardware inside the harddrive case, and is connected to the motherboard.

The Spindle test is to see;
1) If there is any axial, or horizontal runout. That is to say if the Spindle wobbles, so to speak. If so the Spindle Motor bearings are bad.

[Platters have to stay Dead Level. The Read/Write Head is spaced off of the Platter, by about .00003 of an Inch.
(3 hundred-thousandths)
May be closer my figures could be off,
In comparison an average human hair is .003 of an Inch thick.
(3 Thousandths)

Due to the speed the Platters spin at, and the closeness of the Read/Write head to the Platter, the Read/Write Heads actually float on a cushion of air, when the harddrive is active.

When you hear or read the term 'Head Crash', it means one, or more of the Read/Write Heads, has touched a Platter, (Or Platters), and wiped off some of the magnetic medium ]

2) Spin up speed. How long it takes the Spindle Motor to spin up to the required RPM's. Actually, how long it takes the Spindle Motor to spin up the Platters, to the desired RPM.

Doesn't reach the RPM goal? Spindle Motor bearings are probably bad. (Or a failure in the electronic circuit board, on the bottom of the Harddrive. Doubt it. Usually just fails altogether )

A) http://computer.howstuffworks.com/hard-disk.htm

B) http://www.youtube.com/watch?v=s8-pHHv9LYQ&feature=fvwrel

Point?
The test indicates your harddrive is going bad. I would (Pronto) copy off my personal information. (Disk/s, thumb drive/s, storage on the internet, etc)

Regards,
joecoolvette

Hi Janie, Thanks for your question. To replace a drive belt.
1, Remove the rubber platter mat to expose the platter.
2. Put your thumb and forefinger through the two round holes and lift the platter off. You may need to give the centre spindle a light tap (whilst applying upward pressure) with a screwdriver handle or some similar tool that will not leave any marks or damage.
3. Remove the old belt and wipe the platter pulley and motor pulley with an alcohol swab to remove any old belt residue.
4. Place the new belt around the platter pulley making sure t is sitting flat without any twists.
5. Flip platter over the right way up. There are1or 2 larger rectangle shaped cut outs in the platter.
6. Through the cut out pinch up the belt and slip a finger or belt hook between the platter pulley and 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 back into position keeping a grip on the belt.
8. Slip belt over motor pulley and give the platter a light clockwise rotation to ensre the belt is riding correctly.
9. Replace the rubber mat and then run the turntable to ensure correct operation.
Job done.

Note the new belt should sit on the platter pulley and not fall off when the platter is flipped over the correct way up.

When changing speeds between 33 and 45 always be sure that the platter is turning to ensure proper placement and rpm.

All the best, John. [email protected].

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.You have now successfully completedthe process.MUISC IS LIFE, LIVE IT LOUD.

lift the platter and check the belt is on correctly. [email protected]

I don't know the answer, but you have written one of the finest, most comprehensive problem descriptions I have come across. In mechanical scenarios, that is priceless. I'm sure a turntable guru will see it and go, "aw. I know what that is". Good Luck.