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.

The Incredible Technics SP-10 MK3 Thread
The Incredible Technics SP-10 MK3 Thread
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
Reply
 
Thread Tools Search this Thread
Old 13th June 2015, 07:17 AM   #11
Calvin is offline Calvin  Germany
diyAudio Member
 
Calvin's Avatar
 
Join Date: Nov 2004
Location: close to Basel
Hi,

if it werenŽt for the long loading time.
IŽd prefer a preview pic one can click on.

jauu
Calvin
  Reply With Quote
Old 13th June 2015, 01:43 PM   #12
Dave Cawley is offline Dave Cawley  United Kingdom
diyAudio Member
 
Dave Cawley's Avatar
 
Join Date: Feb 2006
Location: Beautiful Dartmouth in Devon UK
Thanks John for the steer on how to get the bearing apart.

Mine is here and showed little sign of wear with golden thin oil at the thrust pad. However I cleared everything out with IPA and cut the wedge brake corner off as it was dragging (I think) now the slight all but inaudible noise at 78rpm has completely gone. The bearing is very free and not tight with minimal drag.

There are some observations for others :

1. This is metric unit that uses mm Allen Keys and Philips heads (not posidrive, star or anything else)

2. The bottom cover, it needs to be re-fitted into the rubber gasket fully before screwing the screws back in, BUT :

3. Two of the 15 cover screws are shorter with blunt ends (not pointed) these MUST go into the two holes very close to the big diameter of the inside base unit, in other words where they are close to the platter and will muck (f) it up if the long pointy ones are screwed in there, lucky I noticed !

4. Most units are 100V the Japanese standard and they will not tolerate 117V let alone the up to 253 we get in the UK. So I had some custom toroids made and a new power inlet panel made to allow an IEC connector. The new transformer sits on a custom base plate spaced off the bottom to allow air through and fits to the original transformer mounting holes.

I have to hold my hand up, this is supposed to be for a customer, although he doesn't know it yet, he may get it or I may well decide to keep it !

BTW the MKIII has 15 poles the MKII 15 poles and the SL-1210 12 poles. I know, they were in eyesight all at the same time and counted using my fingers ! None of them suffer from pole induced flutter. They all have a proper tacho feed, not like described elsewhere !

The Incredible Technics SP-10 MK3 Thread


The Incredible Technics SP-10 MK3 Thread


The Incredible Technics SP-10 MK3 Thread


The Incredible Technics SP-10 MK3 Thread


The Incredible Technics SP-10 MK3 Thread
__________________
"if it measures well & sounds good, it is good" : "if it measures badly & sounds bad it is bad" : "if it measures badly & sounds good, it could be improved" : "if it measures well but sounds bad it is bad" ©

Last edited by Dave Cawley; 13th June 2015 at 01:51 PM.
  Reply With Quote
Old 13th June 2015, 02:59 PM   #13
sq225917 is offline sq225917  United Kingdom
diyAudio Member
 
Join Date: Jun 2004
Location: sheffield
Send a message via MSN to sq225917 The Incredible Technics SP-10 MK3 Thread
Lovely looking example that Dave, nice work on the traffo.
__________________
Paradise Pre-reg PSU PCBs
  Reply With Quote
Old 13th June 2015, 03:27 PM   #14
JP is online now JP  United States
diyAudio Member
 
JP's Avatar
 
Join Date: Jan 2011
Location: New York, NY
Dave - how much shorter are those two screws? Mine has two different makes of screws, about 50/50. Of them all, three are shorter, but only by 1mm at best. All of them have blunt ends.
Attached Images
File Type: jpg IMG_1035.jpg (511.1 KB, 83 views)
__________________
"Show me on the doll where the aliens touched you." - SY
  Reply With Quote
Old 13th June 2015, 03:28 PM   #15
Dave Cawley is offline Dave Cawley  United Kingdom
diyAudio Member
 
Dave Cawley's Avatar
 
Join Date: Feb 2006
Location: Beautiful Dartmouth in Devon UK
Thanks !

New, twice the value Vishay PSU capacitors just to be safe. Click the image to get correct aspect ratio (why does it do that ?)

The Incredible Technics SP-10 MK3 Thread
__________________
"if it measures well & sounds good, it is good" : "if it measures badly & sounds bad it is bad" : "if it measures badly & sounds good, it could be improved" : "if it measures well but sounds bad it is bad" ©
  Reply With Quote
Old 13th June 2015, 03:29 PM   #16
JP is online now JP  United States
diyAudio Member
 
JP's Avatar
 
Join Date: Jan 2011
Location: New York, NY
Quote:
Originally Posted by sq225917 View Post
If you have a japanese service guide I have a software mate who is bilingual.
Thanks! A friend tipped me off to an original North American service guide on eBay. Expensive, but well worth it IMO.
__________________
"Show me on the doll where the aliens touched you." - SY
  Reply With Quote
Old 13th June 2015, 03:32 PM   #17
Dave Cawley is offline Dave Cawley  United Kingdom
diyAudio Member
 
Dave Cawley's Avatar
 
Join Date: Feb 2006
Location: Beautiful Dartmouth in Devon UK
Screws, 13 out of 15 had pointed ends, two were blunt. Looks like all of yours are OK !

BTW, wasn't that me !
__________________
"if it measures well & sounds good, it is good" : "if it measures badly & sounds bad it is bad" : "if it measures badly & sounds good, it could be improved" : "if it measures well but sounds bad it is bad" ©

Last edited by Dave Cawley; 13th June 2015 at 03:43 PM.
  Reply With Quote
Old 13th June 2015, 03:48 PM   #18
JP is online now JP  United States
diyAudio Member
 
JP's Avatar
 
Join Date: Jan 2011
Location: New York, NY
It was!
__________________
"Show me on the doll where the aliens touched you." - SY
  Reply With Quote
Old 13th June 2015, 10:16 PM   #19
JP is online now JP  United States
diyAudio Member
 
JP's Avatar
 
Join Date: Jan 2011
Location: New York, NY
Last night I took apart the motor to inspect and clean it. After removing the plastic cover, simply pull out the rubber dampening block around the platter.

The Incredible Technics SP-10 MK3 Thread-p1010537-jpg

To remove the brake assembly, disconnect the cable by the lower left solenoid, and remove the screws notated below. The read arrows show machine screws, and the blue arrows show self-tapping screws. Note the self-tapping screw through the metal bracket is longer than the other.

The Incredible Technics SP-10 MK3 Thread-p1010534-jpg

The Incredible Technics SP-10 MK3 Thread-p1010535-jpg

The Incredible Technics SP-10 MK3 Thread-p1010536-jpg

The entire brake assembly can then be lifted out. I removed the motor pan from the chassis, but you don't need to do this. The red arrows denote screws that need to be removed to pull the stator assembly, and the blue arrows are the four screws that attach the motor pan to the chassis. Be sure to unplug both cables to the PCB.

The Incredible Technics SP-10 MK3 Thread-p1010526-jpg

The Incredible Technics SP-10 MK3 Thread-p1010521-jpg

Next I cleaned the dust out of the pan, and washed most of the flux off the PCB, not getting too aggressive near the fine wires of the position detection coils. Note the solder splash.

The Incredible Technics SP-10 MK3 Thread-p1010523-jpg

The Incredible Technics SP-10 MK3 Thread-p1010524-jpg

The Incredible Technics SP-10 MK3 Thread-p1010525-jpg

I didn't see any reason to take the bushing mount or servo coils out (you need to desolder them to remove them).

The Incredible Technics SP-10 MK3 Thread-p1010522-jpg

Simply follow the steps in reverse-order to put it back together.
Attached Images
File Type: jpg P1010537.jpg (428.3 KB, 459 views)
File Type: jpg P1010536.jpg (487.0 KB, 439 views)
File Type: jpg P1010535.jpg (517.4 KB, 439 views)
File Type: jpg P1010534.jpg (453.8 KB, 438 views)
File Type: jpg P1010526.jpg (537.3 KB, 437 views)
File Type: jpg P1010521.jpg (545.0 KB, 437 views)
File Type: jpg P1010523.jpg (792.2 KB, 437 views)
File Type: jpg P1010524.jpg (503.2 KB, 440 views)
File Type: jpg P1010525.jpg (727.6 KB, 436 views)
File Type: jpg P1010522.jpg (547.8 KB, 441 views)
__________________
"Show me on the doll where the aliens touched you." - SY

Last edited by JP; 13th June 2015 at 10:20 PM. Reason: sp
  Reply With Quote
Old 13th June 2015, 10:35 PM   #20
6L6 is offline 6L6  United States
diyAudio Moderator
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
The Incredible Technics SP-10 MK3 Thread
Quote:
Originally Posted by Dave Cawley View Post
Click the image to get correct aspect ratio (why does it do that ?)
The forum software automatically resizes the images to a certain height, to keep the entire thread from becoming too tall, thereby saving you the arduous task of scrolling down a wee bit more to see the whole page...
  Reply With Quote

Reply


The Incredible Technics SP-10 MK3 ThreadHide 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
The Incredible Technics SP-10 Thread 6L6 Analogue Source 1179 18th February 2019 06:12 PM
Technics SP 10 Speed Problems rollinr Analogue Source 29 27th October 2017 10:05 AM
SP-10 MK3 oil change Dave Cawley Analogue Source 16 15th June 2015 05:05 AM
SP-10 MK3 flutter Dave Cawley Analogue Source 16 22nd May 2015 08:02 PM
Technics SP-10 speed problems Stefanoo Analogue Source 3 17th August 2008 11:05 PM


New To Site? Need Help?

All times are GMT. The time now is 11:13 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki