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Point 1. Why to you say, "Stuck?" Does it not make sense as a possiblity that the designers sought to prevent rotaton speed from being changed mid playback, especially on, say, an LP (long play) album with different side (stereo instead of 45 monaural) grooving. What would be the imperative of changing record speed in that manner...only one record type will play at a time. If changer, only one type record seriies can be played, all at the same speed.
Point 2. ...about "pitch...wildly out by about +7.
First, what are you meaning by pitch and by + (not -) 7. Since there is, to my knowlege, no record spin criterion known as pitch, are you referring to spin speed; hence to playback sound frequency, whether steady state or variable? If there is no user control of platter rotation speed on your unitn there would be little you can do other than to ensure all parts above and below platter are running smoothly with no drag or interference...possibly even lightening the record load on the platter, if a changer; and making sure records are clean to prevent slippage by washing with water or soap and water and air drying--avoid label. If your turntable is optically speed controlled (by timing marks on platter rim) those are typically adjustable to hasten or slow platter speed and therefore playback frequency pitch to your liking. "Wild variation" could reflect mechanical impedance as indicated above. Also check for record warping by trying known true record playback. Finallly, wild variation could be indicator of platter motor end of life cycle. Start pricing a motor if nothing helps.
I still don't follow the significance of the speculative(?) 7. Please explain if possible.
This sounds like the belt, if it is a belt drive model, has slipped to the wrong position on the motor post. You should be able to set it back up right. As long as the belt is not worn out.
Any recordings at 45 can be converted to 78 using the software. There should be an option to do this. This applies to all other speed settings too. You can convert 33 to 45 etc using the same thing.
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..
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).
the turntable wont spin unless a record is on the platter,the centre 45 adapter weighs the record to determine 33/45.try pressing 33 and turning the platter by hand(remove expensive cartridge first!),if it starts to spin the motor leaf switch is at fault.is the belt in position.the motor pulley can become unglued.
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.
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.)