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

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 31st October 2011, 03:48 AM   #1
data is offline data  Australia
diyAudio Member
 
data's Avatar
 
Join Date: Jul 2007
Location: Brisbane
Default Pioneer A400 Volume pot, connection advice needed

Hay guys, I need to know where to connect a third party pot to replace the original pot, doing away with balance control

Any advice is appreciated.

If anyone has done there pot upgrade on their A400 and has pics it would help even more?

Thanks guys
__________________
Speakers; Lenehan ML-1 - Amp; 25wpc El34 Custom - Phono; Boozhounds jfet - Turntable; Sansui SR838.
  Reply With Quote
Old 31st October 2011, 12:40 PM   #2
diyAudio Member
 
Join Date: Feb 2011
Location: England
Fitting a dual gang pot that doesn't have the balance split shaft is not a problem but the original pot in the A400 has a 'loudness' center tap have you managed to find a replacement pot with one of these ?

Last edited by eggontoast; 31st October 2011 at 12:46 PM.
  Reply With Quote
Old 31st October 2011, 12:48 PM   #3
data is offline data  Australia
diyAudio Member
 
data's Avatar
 
Join Date: Jul 2007
Location: Brisbane
Interesting on the loudness center tap, never seen this before.

Was just going to use a ladder pot.

Edit: Can I just ignore the center tap?
__________________
Speakers; Lenehan ML-1 - Amp; 25wpc El34 Custom - Phono; Boozhounds jfet - Turntable; Sansui SR838.
  Reply With Quote
Old 1st November 2011, 03:22 PM   #4
data is offline data  Australia
diyAudio Member
 
data's Avatar
 
Join Date: Jul 2007
Location: Brisbane
All good, I just needed to study the schematics a little more
__________________
Speakers; Lenehan ML-1 - Amp; 25wpc El34 Custom - Phono; Boozhounds jfet - Turntable; Sansui SR838.
  Reply With Quote
Old 10th November 2011, 05:09 PM   #5
data is offline data  Australia
diyAudio Member
 
data's Avatar
 
Join Date: Jul 2007
Location: Brisbane
Well that started going good, but the left channel was out and turned out to be shorting to earth somewhere, then got it working but the levels were mega high with a small turn of the pot

Is this the issue when not using a pot with 'loudness' center tap?

I got it in this state, a ladder pot wired before and after the original area where the pot did live, and the left channel not working.

And trying to fix these issues has gone backwards, now neither channel works correct.

Oh well bought it thinking I could resolve the issue and it ended being a bad call on my part.
__________________
Speakers; Lenehan ML-1 - Amp; 25wpc El34 Custom - Phono; Boozhounds jfet - Turntable; Sansui SR838.
  Reply With Quote

Reply


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
dual concentric volume pot needed? robgilmo Parts 4 25th March 2012 02:44 AM
Pioneer A400 pre-power seperation advice needed metako Solid State 17 1st June 2009 12:28 PM
Pioneer A400 pot replacement jkeny Parts 0 19th September 2008 11:49 AM
Help Needed- Replacement Volume Pot For a Fisher KX100 fsjonsey Tubes / Valves 5 13th February 2008 06:03 AM
a400 volume pot value? matthew2456 Solid State 10 4th December 2006 11:37 AM


New To Site? Need Help?

All times are GMT. The time now is 08:54 AM.

Page generated in 0.08308 seconds (73.80% PHP - 26.20% MySQL) with 10 queries

Copyright ©1999-2012 diyAudio