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Hey i have a turntable that works along/is powered by my hifi. pioneer pl-888z. one day it suddenly started to spin a bit too fast so the records sound too high in pitch. it looks like an electric problem. how can i fix this? thank you. wyldwolf
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If your Pioneer PL 640 turntable is experiencing variations in speed, there are a few potential causes to consider. Here are some steps you can take to troubleshoot and fix the issue:
Check the belt: The belt on the turntable may have become stretched or worn, which can cause variations in speed. Inspect the belt for any signs of damage or wear, and replace it if necessary.
Check the platter: The platter may be dirty or have accumulated debris, which can cause it to spin unevenly. Remove the platter and clean it thoroughly, and make sure it is seated correctly on the spindle.
Check the motor: The motor may be malfunctioning or dirty, which can cause variations in speed. Remove the motor and clean it, and check it for any signs of damage or wear. If necessary, replace the motor.
Check the pitch control: The pitch control on the turntable may be dirty or malfunctioning, which can cause variations in speed. Clean the pitch control and make sure it is working correctly.
Check the power supply: The power supply may be providing insufficient power to the turntable, which can cause variations in speed. Check the voltage output of the power supply, and make sure it is within the manufacturer's recommended range.
If none of these steps resolves the issue, you may need to take your turntable to a professional repair technician for further diagnosis and repair.
When the turntable spins the light shines on the edge. You will see at least two indications. One for 45 and one for 33. With the record playing you should adjust the speed control, till one of the indents appears static and not moving. You will have to do this for both speeds. You also might see some varations in speed. These are quite normal and getting it right is trial and error. It will only read true when the stylus is on the record too. If you can't get the indication to stay still then there is something wrong with the drive.
Hi Lisa, its a bit of a long shot however try this. With the turntable
powered of manually rotate the platter approx 12 times to reset the
auto operation back to default. John styluscity.com
Are the record size tabs sticking up through the turntable platter cover? They sense the size of the record being played and adjust the run out distance for either 45 or 33 rpm records.
Yes first check is that the Gnd wire from your turntable is connected to the Gnd (ground) post at the back of your amplifier with a good clean tight connection. If the problem persists, check ALL your hi-fi components mains plugs for earth connections including your turntable, then remove the earth connections on all but one component so that you are left with only item earthed. What does sometimes cause problems is if 2 or more hi-fi separates are earthed and connected to each other the earth cables along with the hi-fi interconnects form an inductive loop that picks up interferance such as mains hum etc. Regards John
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