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Technics sl-1700 45 speed too slow

schoonbeke

schoonbeke

Active Member
I recently bought a Technics sl-1700 which immediately improved the quality of my music, at least at 33 1/3. BUT I didn't think to test it at 45 rpm when I bought it, and now find that it is way too slow. Does anyone have any thoughts about what might be the cause and solution?
 
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slow 45 speed technics sl-1700

Yes I read the link, but I am not sure it's relevant. My problem is not instability. It is stable at both 33 1/3 and at 45. Both pitch controls (33 and 45) seem to work fine to increase and decrease the speed.

The strobe has different levels for 50 and 60 Hz. I can get it dead on at 45 on the 50 Hz scale--but I cannot get it up to 45 rpm speed on the 60 Hz scale. (33 1/3 is fine at 60 Hz).

In other words, it is just that the basic 45 speed is too slow to begin with.

Both pitch controls seem to work fine. The problem
 
Technics SL-1700 45 speed problem fixed

I discovered that there are two speed adjustment screws under the platter--one marked 33, the other 45. I simply adjusted the 45 speed and the problem was solved.

Next step: to add a resistor and switch to make it play 78s.
 
Yes, I was getting ready to post that you needed to adjust the 45 RPM speed adjustment pot under the platter. Glad you got it sorted.
 
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