Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

LINN Axis Turntable Motor
LINN Axis Turntable Motor
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 6th February 2011, 07:21 PM   #1
DocTony is offline DocTony  United States
diyAudio Member
Join Date: Feb 2011
Default LINN Axis Turntable Motor

Need help on the Linn Axis Pully Motor:
Initially I found that the motor has a hard time starting up. Even with turning the platter by hand, it only revolves a short time and is slow on 33rpm, then stops and little to none on the 45rpm speed.

I have replace ALL electrolytics caps, replaced the R1 resistor with an uipgraded thermistor and the rectifier also upgraded, new drive belt and re-oiled the subplatter well as recommended by a Linn service person.

Still the platter does not rotate freely and eventually stops. The motor has a vibratory noise and sometimes starts backward.

Is the motor shot or some other parts needs replacing. Please help. Thank you
  Reply With Quote
Old 9th February 2011, 09:10 PM   #2
telecine is offline telecine  United Kingdom
diyAudio Member
Join Date: Sep 2010
I think the clue here is that sometimes the motor runs backwards. This suggests that you have probably lost one "phase" from the Axis PSU. Get a meter on AC volts across the two phases and I think you will find either one of them absent, low in amplitude, or distorted.

The cause of this is most likely in the output stage itself. Probably a BUX85F.

Do you have a scope?

If you have one phase absent, I'd check the o/p transistors on ohms range and replace as necessary. It may be prudent to replace the associated drivers at the same time. BC184?

This circuit is a bitch to fault find on, and please beware as it is not isolated from the mains and will bite if not treated with proper respect.
  Reply With Quote
Old 20th April 2012, 06:37 AM   #3
ears12000 is offline ears12000
diyAudio Member
Join Date: Apr 2012
Default Linn Axis motor

Where can I find a diagram of the motor supply?
  Reply With Quote
Old 22nd April 2012, 01:56 PM   #4
h_a is offline h_a  Europe
diyAudio Member
h_a's Avatar
Join Date: Sep 2006
Location: Graz, Austria
Originally Posted by ears12000 View Post
Where can I find a diagram of the motor supply?
Linn Axis Owners Manual, Service Manual, Schematics, Free Download | Vinyl Engine

please beware as it is not isolated from the mains and will bite if not treated with proper respect.
Keep that in mind - the circuit directly rectifies mains without a transformer...

High Octane phono preamp Wiki
  Reply With Quote


LINN Axis Turntable MotorHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Repairing Linn Axis Motor Drive Amplifier John Caswell Analogue Source 62 22nd May 2018 06:36 AM
Linn Axis Schematic beamish Analogue Source 12 20th February 2016 08:06 PM
Linn Axis psu almost fixed (i think!) martiny Analogue Source 0 4th March 2009 03:14 PM
Linn Axis PSU smoking martiny Analogue Source 0 1st March 2009 12:06 AM
Repairs to Linn axis turntable charlesrobinson Everything Else 1 13th July 2007 05:01 PM

New To Site? Need Help?

All times are GMT. The time now is 07:56 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio