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Sherwood ST-903 Nudies

malanga

malanga

Well-Known Member
Hi All.

As I posted on another thread, I picked up a Sherwood ST-903 Linear turntable yesterday. It has the same size belt as my Pioneer, so i swapped them and the turntable was spinning, but the arm did not move. It was not working so I decided to open it up and take a look.

Here she is:







Sorry for the blurry picture. The cartridge is an Audio Technica M13 E/U


Okay, so I took the cover off. Here is a pic of the linear arm mechanism.


Everything seemed to move fine, but the arm would not do anything. I decided to examine the motor for the arm:



I touched the spindle of the motor and it was spinning:


The belt was so loose that it did not even move. Now where have a seen a belt like that before...oh yes, my daughter's rubber bands for her hair! I went and got one:


Would you believe the bloody thing worked! She is playing like a champ now!



I played the album to the end and it sounds solid! The only possible problem was that the arm did not return at the end of the record. I do not know if it was supposed to however. As far as I can tell all the other functions were just fine. Don't you just love happy endings! :thmbsp:
 
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Clean and lube sparingly. Proper belts will help. The plastic looks as though it has aged. You may need to clean the pulleys a bit? Nice project though - have fun :)
 
Yes, I do plan to get the right belts eventually. The plastic is okay, just bad pics from my cheap camera!
 
Even though this thread is dead I'm still hoping maybe somebody has a hint for me... I just had this same turntable given to my by my grandmother and it has the same issue as this one does but when I don't get any output of sound at all... I can hear the music if I stick my head close to the needle and I know it's not my amps... Any ideas?
 
My best SWAG is that it is not unmuting on play. This can be a failure of the muing ckt or failure to complete play cycling with the cueing. It looks from the pic like the cueing/muting mech may be on the arm sled.
 
I'm not really too sure what you're talking about is this something I can fix without replacing parts?
 
JRosenb88 said:
I'm not really too sure what you're talking about is this something I can fix without replacing parts?
Click to expand...

Probably yes. Follow the signal leads in from the RCAs to the arm sled, the muting thingie will be along there somewhere. It's basically a shorting switch to keep cycling noises out of the sound during cue-down/cue-up and track finding.
 
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