Technics SL-1900-Tonearm not picking up

turning japanese
Post Reply
junglist
Posts: 2
Joined: 21 Mar 2009 15:50
Location: Toronto

Technics SL-1900-Tonearm not picking up

Post by junglist » 01 Jun 2009 15:53

I have inherited a Technics SL-1900 which I want to use. However it the tonearm does not pick up with the automatic lift, as the turntable has an automatic stop/ start function this is extremly hazardous to my vinyl as instead of picking up the arm it just drags it across the grooves.

Anyone repaired something like this ?? Is it simple or does it require technical assistance ??

thanks

Richard

E T Frog
member
member
Posts: 84
Joined: 04 Jan 2006 01:49
Location: Philadelphia, PA

Post by E T Frog » 01 Jun 2009 16:44

The arm lift bar may be too low. There is an adjustment screw at the base of the arm lift bar that allows it to be raised.

junglist
Posts: 2
Joined: 21 Mar 2009 15:50
Location: Toronto

Post by junglist » 01 Jun 2009 17:12

I tried adjusting that screw. It seems though that if I adjust it then it's permanently raised or lowered so it still doesn't move up and down.

fscl
vinyl addict
vinyl addict
United States of America
Posts: 7742
Joined: 05 Aug 2004 07:51
Location: CT, US

Post by fscl » 04 Jun 2009 04:46

The service manual is in the library:

https://www.vinylengine.com/library/tec ... 1900.shtml

Return the arm bar lift to stock / factory setting by adjusting the tonearm lift according the service manual page 5.

Review page 10 of the service manual, the exploded view of the tonearm with your turntable and refer to page 14 of the parts list.

It is very difficult to make out the numbers in the service manual scans, however, it will be much easier to follow along with your actual turntable in front of you.

My bet is somehow the arm lift cam is not engaging and lifting the arm bar at the end of cycle before it arcs back to the tonearm rest. Concentrate on parts 51-54 on pages 14 & 15 how they work together above the turntable and where they hit / interact underneath the turntable. Hopefully you can watch how the automatic lift and return work together and adjust the lift cams accordingly.

Good luck.

Fred

digitalisevil
Posts: 2
Joined: 07 Feb 2010 16:02
Location: Georgia

Post by digitalisevil » 07 Feb 2010 16:09

Technic SL-1900 arm lift problems:

Most likely solution: disassemble the deck and clean out all the dried grease on the lift mechanism, use alcohol or a light degreaser with cotton swabs. Regrease with a light grease. Did this on mine and it works like new.

I fretted with the adjustment screws and it was a mistake.

realtime
Posts: 1
Joined: 26 Feb 2010 16:26
Location: Vilnius, Lithuania

Post by realtime » 06 Apr 2011 14:49

Fred, following your instructions solved my very same problem, hudge thanks!

vytas

Gsdaddo
Posts: 1
Joined: 04 Sep 2017 17:38

Re: Technics SL-1900-Tonearm not picking up

Post by Gsdaddo » 18 Nov 2019 17:59

I have the tone arm return issue where the arm reaches the end of play and does not lift, raking the needle across the LP, as well. Are there any instructions available to "disassemble the deck"? I am the original owner, and everything else works great. Thanks so much in advance.

spensar
senior member
senior member
Canada
Posts: 779
Joined: 04 May 2014 02:40

Re: Technics SL-1900-Tonearm not picking up

Post by spensar » 18 Nov 2019 18:25

There is a long thread on this, and at the 8th post or so Brick has provided great pictures and instructions. This is on a 1600 but my understanding is that it is basically the same with the 1600, 17,00 1800, 1900 MK1 tables.

[/viewtopic.php?f=16&t=34199&hilit=sl+1600url]

Brick
senior member
senior member
United States of America
Posts: 485
Joined: 31 Oct 2010 23:13
Location: Snowflake, Arizona

Re: Technics SL-1900-Tonearm not picking up

Post by Brick » 19 Nov 2019 22:16

There is another post on the 1900 series, I just don't have it flagged. The trouble with 1900s is almost always that the little metal lift plate gets glued down by grease. Easier to fix than the 1600, and well worth the effort.

wblynch
member
member
United States of America
Posts: 34
Joined: 06 Aug 2019 20:41

Re: Technics SL-1900-Tonearm not picking up

Post by wblynch » 20 Nov 2019 20:01

Watch this video... https://youtu.be/k0HTskP4Wak

Post Reply