Sansui ba-5000 Large Cap Removal Help Needed - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 17th November 2012, 10:55 PM   #1
diyAudio Member
 
Join Date: Nov 2012
Default Sansui ba-5000 Large Cap Removal Help Needed

I'm in the process of replacing some of the capacitors on my Sansui BA-5000 amplifier. I have drop-in replacements for the 4 large 22,000 MFD filter caps [C701-C704] but can't figure-out how to remove them from the clamps at their base. The mounting position is such that I can't get a ratchet or wrench on the nut that tightens the clamp around the capacitor. I thought the best way to replace them was to disconnect the wiring from the bus-bars, remove the upper-side-plate that the capacitor base clamps are bolted to (with the old caps in-place), replace the caps, and re-install the plate with the new caps clamped in-place. However, after removing all visible screws into the upper plate (including the one under the output-transformer cover), the upper-side-plate remains secured to the lower-side-plate. Can someone (maybe one of the BA-5000 veterans like EchoWars) tell me what I'm missing?, Is there another way to remove these caps?

Also, is there a recommended replacement for the front-panel power switch (TMS-840)?

Thanks
  Reply With Quote
Old 18th November 2012, 07:05 AM   #2
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
Can you not remove the screws holding the clamps themselves to the baseplate? Have you tried using a flexible shaft screwdriver? (though these bolts do tend to freeze up after decades of sitting around).

Better post a pic and leading dimensions of your power switch. Equivalent drop-in parts stock going back near 40 years is very unlikely so you may have to adapt a similar or generic part.
__________________
regards
  Reply With Quote
Old 19th November 2012, 12:23 PM   #3
diyAudio Member
 
Join Date: Nov 2012
Ian,

Thanks for responding. I can't remove all of the screws holding the clamps to the side-plate because some are under the capacitors. The caps are mounted horizontally to side panels of the chassis. My flexible shafts don't fit; not sure if any would. Also, there is about an inch of the clamp bolt that must be cleared by the socket before the nut is reached.

Regarding the power switch : It's probably a custom Sansui part - has a flat shaft that must fit through a vertical slit in the faceplate. Just wondering if one of the Ba-5000 restorers found something that fits.

Also looking for suggestions for best drop-in replacement for front panel volume control pots.
  Reply With Quote
Old 19th November 2012, 12:57 PM   #4
a.wayne is offline a.wayne  United States
Sin Bin
 
Join Date: May 2008
Location: Front Row Center
Post up some pics ......!!!!!
  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sansui BA-303 CrewBies Tubes / Valves 8 7th January 2012 10:43 PM
Sansui BA 5000 Loud pop at turn on / off VintagePlus Solid State 20 24th December 2011 04:13 PM
Need help with Sansui 5000 gwyz Solid State 77 5th December 2009 01:10 AM
Sansui BA-5000 Oscillation EchoWars Solid State 48 11th June 2009 11:36 PM
Sanusi BA-5000 ddino77 Solid State 1 6th February 2008 06:54 PM


New To Site? Need Help?

All times are GMT. The time now is 09:33 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2