The RPM button on the turntable is broken. This isn't a big issue since the button is set to 33 RPM, but when I try switching it to 45 RPM, the button will not "stick" when I press down on it. My temporary solution has been to press a heavy object against the button so that it stays, but I would like to know if there's a home fix for this issue.
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Assuming it is a belt driven turntable I suspect the belt has slipped out of position. It might need adjusting or replacing. If you do need to replace it make a note of how it fits, even though it could be in the wrong position. It's a starting point for putting the new one in the right position.
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.
It seems to me that the switch has broken and isn't moving to the 33 setting. You just need to find the switch. Without seeing it I can't say what type it is so I suggest looking for it under google image search. Try "micro switches" or "leaf switches". You can also look try Maplin, or the Curry's Partmaster website.
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 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.
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.)
I had this same problem. You can adjust the speed, although it is a bit of a pain. If you turn the unit over you will see two little holes on the bottom labeled "33" and "45". You will need a small (jewelers) flat head screw driver. If you put the screw driver in the hole you will encounter a rubber cover. Push the screw driver through the rubber and go down a bit further and you will feel a screw. Turning this screw to the left (counter clockwise) makes the speed slower. Turn the screw to the left to make the speed faster.
For a picture you can download the service manual:
You can check the speed visually by downloading a strobe disc (I found one I like at http://www.extremephono.com/free_turntable_strobe_disk.htm). To actually be able to see the strobe you need to do this under a lamp with a single fluorescent light bulb (fluorescent bulbs actually flicker a little bit at the same frequency as the electric supply).