The Exquisite Death of NK Posted April 17, 2013 Share Posted April 17, 2013 First off, I'm new around these parts and relatively new to vinyl in general. So forgive me if this is a n00b question. I have recently come up on an 80s belt drive Marantz turntable. Its nothing fancy, probably a low end model for the 80s... but its an upgrade on the Crosley my wife got me as a gift a while back. Anyways, it was playing and sounding great, until I switched to 45RPMs to play a 7 inch (the speed switches with a simple button... no adjustment). After that, all my records are playing slight higher RPM, both when played at 33 or 45RPM. I've taken off the platter and inspected the belt and components for gunk and couldn't find any. Any advice? Quote Link to comment Share on other sites More sharing options...
Emo Revival Posted April 17, 2013 Share Posted April 17, 2013 I had the same sort of problem except it was to slow. Look up the manual for your table and find the speed adjustment screws and tweek them until you get it right. I used the iRPM app to make sure it was exactly 331/3 and 45 Quote Link to comment Share on other sites More sharing options...
ajxd Posted April 17, 2013 Share Posted April 17, 2013 Yup. What that spider said. Should be underneath the base if you have a BPC type turntable. Quote Link to comment Share on other sites More sharing options...
swemoll Posted April 18, 2013 Share Posted April 18, 2013 What they said. That being said, running a teensy bit fast is not an issue. I believe it to be correct, actually. Belt drive tables will traditionally slow down ever so slightly when the needle is on the record due to friction. Quote Link to comment Share on other sites More sharing options...
bearchuck Posted April 18, 2013 Share Posted April 18, 2013 What they said. That being said, running a teensy bit fast is not an issue. I believe it to be correct, actually. Belt drive tables will traditionally slow down ever so slightly when the needle is on the record due to friction. Stylus drag exists, but in my opinion it's negligible ... even with mid-to-low level belt drive turntables. If the OP's TT is running slightly fast with the tonearm raised, stylus drag isn't going to correct the speed issue. Even if your deck is running perfectly at 33 1/3 rpms (again, with the tonearm is up), you'd never notice a slowdown while playing records. Unless you were some sort of pitch freak with superhuman ears. As others have said, play around with the adjustment screws and see where that takes you. Quote Link to comment Share on other sites More sharing options...
ajxd Posted April 18, 2013 Share Posted April 18, 2013 Stylus drag/weight/etc is compensated for when motors are designed. I did the test with no record, with record, while playing record, while playing record with record weight, etc... All 33.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333 Quote Link to comment Share on other sites More sharing options...
ajxd Posted April 18, 2013 Share Posted April 18, 2013 Ha. Take that forum. Quote Link to comment Share on other sites More sharing options...
The Exquisite Death of NK Posted April 18, 2013 Author Share Posted April 18, 2013 First off, as a math teacher, I love the repeating .3 going off the forum's page. Well done. Secondly, regarding the original post: the TT is not running a 'teensy' bit fast. Its noticeable, especially on songs I'm familiar with. Last night I clocked a song on my TT at 3:45 and the linear notes time (as well as the iTunes time) is 3:59. So, that's not OK. I have searched the interwebz high and low and can't find a PDF of the manual. And I'm not paying $15 for one on eBay. So, how do I find this adjustment screw(s) on my own? And I don't know what 'BPC' means. Thanks! Quote Link to comment Share on other sites More sharing options...
slinch Posted April 18, 2013 Share Posted April 18, 2013 Post the model number and we'll find them for you Quote Link to comment Share on other sites More sharing options...
The Exquisite Death of NK Posted April 18, 2013 Author Share Posted April 18, 2013 Marantz TT 162 Quote Link to comment Share on other sites More sharing options...
ajxd Posted April 18, 2013 Share Posted April 18, 2013 BPC = Black Plastic Crap. Quote Link to comment Share on other sites More sharing options...
ajxd Posted April 18, 2013 Share Posted April 18, 2013 Here's an easy fix. Lock the tonearm in place. Remove rubber mat and place it on your table. Gently flip the whole TT over and look at the bottom of the table. Take a pic for us. There is possibly 2 holes; one that says 33 1/3 and one that says 45. Those are the set screw adjustments. Flip table back over, adjust as necessary. Quote Link to comment Share on other sites More sharing options...
WastedL1ght Posted December 25, 2013 Share Posted December 25, 2013 I hope it's not a problem that I post in this thread instead of making a new one.I recently noticed that my Technics SL-B 210 plays my records slightly too fast. For example "Breaker" by Anthony Green is 4:52 but my turntable finishes the song in 4:44.I found the adjustment screw but it seems damaged. I rotated the screw a bit but no change. The bronze thing on top of the screw feels very loose too.Is there still a chance to fix it? It wouldn't be too bad, since I only notice the speed change on records I regularly listen to on my phone.Thanks in advance. Quote Link to comment Share on other sites More sharing options...
allenh Posted December 26, 2013 Share Posted December 26, 2013 As said above there should be two adjustment screws, one for 33 and one for 45, are you adjusting the right one? Quote Link to comment Share on other sites More sharing options...
WastedL1ght Posted December 26, 2013 Share Posted December 26, 2013 As said above there should be two adjustment screws, one for 33 and one for 45, are you adjusting the right one? I followed the manual, so I guess I adjusted the right one. Anyway, just wanted to play a 45 RPM record and noticed that 45 RPM has just stopped working. I guess something really is loose inside now. I'll just open the turntable later and see what can be fixed. Quote Link to comment Share on other sites More sharing options...
theGael Posted July 11, 2015 Share Posted July 11, 2015 Thanks for the clue about the adjustment screw holes in the base. Mine has a slider to adjust speed, but could not get it accurate for 45 even at the end of the range. Even 33 was close to the end of the slider range.HOWEVER:On my ttbl, the holes were there and labeled for 45 (front) and 33 (just behind), but NO SCREWS ON THE OTHER SIDE!!!!Took off the base and found the circuit board attached to the slider had the adjustment screws on the upper side of the board. Hint for anyone with the same confusion. Good luck! Quote Link to comment Share on other sites More sharing options...
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