My pitch always fluctuating - Pioneer CDJ-850 CD PLAYER

The symptoms you describe on your Panasonic RQ-2102 cassette player are indicative of a problem with the playback mechanism, most likely related to the motor or the belt that drives it. Here are some steps you can take to try to fix the issue:

1. Check the belt: Open the cassette player and look for the belt that drives the playback mechanism. If the belt is loose, broken, or worn, it can cause the speed and pitch to fluctuate or the head not to spin at all. In that case, you may need to replace the belt.
2. Clean the playback head: Use a cotton swab moistened with isopropyl alcohol to clean the playback head. Dirt and debris can accumulate on the head and cause playback issues.
3. Check the motor: The motor that drives the playback mechanism may be faulty or damaged. If the motor is not spinning at the correct speed, it can cause the speed and pitch to fluctuate. In that case, you may need to replace the motor.
4. Lubricate the mechanism: The playback mechanism may need lubrication. Use a small amount of silicone lubricant on the moving parts of the mechanism to reduce friction and improve performance.

If these steps don't fix the issue, it may be necessary to take your cassette player to a repair shop for further inspection and repair.

Fluctuating... you mean the level is getting low, then getting over filled?
.. to check it.. make sure you are always on level ground.. the bike is always level,, and wait check the level at least one minute after stopping the engine.
Check the oil the exact same way each time to eliminate human error!!

Could be a scratch/dirty speed potentiometer that controls your speed/pitch control.

I notice that some of my cell phone wall chargers make a high pitched ringing sound, not that loud though. I think cheaper internal electrical components are the culprit. (Opinion)

You MAY have contamination in the slider.You could try putting a little CRC226 into the slot and work the control. Use ONLY this product CRC226 available at Home Depot in the electrical dept/

Before anything else I would clean the pitch slider control with a little bit of De-Oxit D5 cleaner or Servisol. It could be there is some dust/dirt in the slider control causing a fluctuation in speed because of bad contacts.

Spray a little in the slider, work it a few times and leave for about 5 minutes before trying. Hope this helps :)

It is caused by the turntable not turning steadily. More than likely it is mechanical probably caused by defective belt drive. If the change in pitch is in regular interval then more than likely it is mechanical. It can be caused electrically when current or voltage fluctuates casuing the turntable to go faster or slower. Fixing this problem requires opening the unit. Check the belt it may be loose or stretched or may a debris is stucked on it.

i had my decks fixed by these guys they are in london.

thier websites is www.technics1210repair.co.uk

they do technics turntable servicing

check them out.

im only spreading the word due it i had my decks fixed their and i am so pleased im telling everyone so they can get the same service i did, rather than paying over the odds at some **** toster repair shop.

alan

try cleaning the inner ring on the underside of the actual turntable platter and also the motor spindle using isoprynol alcohol or use neat clear spirits like bacardi/vodka with cotton wool etc. if black residue comes off either the platter or the motor spindle that will be residue from the old belt that could cause the fluctuation in speed? good luck.

you need to replace the Pitch controls. I'm presuming it is a sliding pitch control. Use the Red start stop lights that reflect on the rotating wheel. put the pitch in center 0. does one row of the dots on the wheel stay completely still.now just turn it up op down a bit until it starts to move the dots slightly. now watch the dots now while there moving. Do they fluctuate they should be smoothe. do this on both decks to find out which one is fluctuating.