My USB Turntable changes speed, at the end of a 33 RPM record

Check the belt is fitted correctly. If it is not it will affect the speed. If the speed is slow on both 45 and 33 rpm, then it could be the motor. Sometimes there are speed presetts at the none shaft end of the motor. If it doesn't look like the motor has any built in electronics in it, then look to the turntable power supply look for faults in that.

If this is a belt drive turntable the belt might be in the wrong position or is slack due to wear.

I think you mean 45 rpm?
It sounds like you have got the belt in the wrong position. Try adjusting the position of the belt by experiment. Or you could look up the correct way to set up the belt.

Make sure the turntable speed is on the appropriate level for each record (33 rpm or 45 rpm), then check the voltage selector and make sure it is appropriate for your housing electricity.

if your turntable doesn't have a pitch control (like the dj's turntables) if you open it you should find on the board close from the 45-33 rpm switch a variable resistor ( a small electronic part with a sort of disc on top with in the middle of it a place for a flat screw driver and marking like + and - those resistor are made to control the speed and can go bad or just need to be adjusted . First try to adjust it turning the dial really carefully with a small screw driver if nothing happened it could need to be replace.





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hi,
somewhere on that player is a switch for 78-45-33 rpm the speed switch look up around by the tone arm above by where the record goes, it may not be on the front. switch it to the correct record you have 45's are small. 78's are medium and 33rpms are the big records..
jm

The turntable may have a pattern on the edge of the turntable. If not you need a turntable strobe disk that you place on the turntable like a record. The pattern on the disk or on the edge of the turntable will be marked for 50 Hz or 60 Hz frequency.
The strobe marks on the disk or on the turntable are for 33 RPM and 45 RPM and for both 50 & 60 Hz mains frequency.
To adjust the turntable for the correct RPM, turn on the strobe light and the turntable set it to 33 RPM and shine the strobe light on these marks and adjust the speed setting until the 33 RPM marks appear steady and not moving. You may want to check it for 45 RPM as well.
Make sure you use the correct mains frequency marks ie. the 50 or 60 Hz that your electricity system uses.

The first step to resolving this issue is to select the appropriate RPM speed for the record that you have in hand. If it is not a simple 33 1/3 RPM record set on 45 RPM, then it would seem that the phono motor speed could require adjustment. Your phonograph is a belt-driven PX-E860 K with a DC servo motor.

Some people mistake the the 7"/LP record size LEVER for the rotational speed BUTTON (33 RPM when raised; 45 RPM when down).

In the case of needing to actually callibrate the rotational speed, underneath the unit there is a hole labeled "33" & a hole labeled "45." Using a very fine precision screwdriver, you can callibrate the speed of each. Insert the screwdriver into the repsective hole past the rubber & slightly turn the screw (rotational speed increases as you turn the screw clockwise).

1- The turntable is set to 45 rpm and the album is recorded at 33 rpm. Press the 33 rpm button the red light should come on turn the and be fine.

or

2- This turn table has a fast record mode where you can record a 33 rpm LP faster by spinning it at 45 rpm. If you are trying to use this mode you will have to make a software setting to tell the TTUSB10 digital converter program what mode you want to run.

:).

I have a different Sony model (PS-LX-150H) that had a similar problem. I hadn't used it in awhile, and then when I did, I noticed the speed problem.

IF your PS-LX250 is like my PS-LX150, there are small speed adjustment screws accessible from the bottom of the unit. On mine, the two adjustment screws were labeled - one for 33rpm, the other for 45 rpm. Basically I just fiddled a bit with them using a very small precision screw driver until I could verify that I had reached 33 rpm (I used a stopwatch and literally counted the number of rotations/minute after making adjustments.)

Now it sounds right!