Quad balance - 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 15th August 2006, 02:34 PM   #1
ginsner is offline ginsner  Canada
diyAudio Member
 
Join Date: Aug 2006
Default Quad balance

ok this should be an easy one
just hooked up a Quad 33 +405
and there is something crossed
the left and right channels are swapped and the balance is only centered when the control is all the way to the left, which turns down the left speaker.

I am guessing there is a pot controling the balance that is shot or was improperly repaired
anyone have an answer?
  Reply With Quote
Old 15th August 2006, 06:55 PM   #2
Zombie is offline Zombie  Sweden
diyAudio Member
 
Join Date: Feb 2003
Location: At home
see to that only the "stereo" button is pressed...
  Reply With Quote
Old 15th August 2006, 08:04 PM   #3
ginsner is offline ginsner  Canada
diyAudio Member
 
Join Date: Aug 2006
Default yup its pressed

and when i press the left mono btn it turns off the left
right turns off right
and yes the speakers are hooked up correctly
unless of course the brits have there lefts and rights backwards with stereos like they do driving
i was thinking before that i was possible that the wires were crossed in the din from the pre to power
but that doesn't explain why the balance control has to be all the way left to turn down the left speaker to match the right
  Reply With Quote
Old 15th August 2006, 08:33 PM   #4
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
I suspect the balance pot is either shot or has been replaced with a logarithmic one by a monkey.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 16th August 2006, 08:04 PM   #5
ginsner is offline ginsner  Canada
diyAudio Member
 
Join Date: Aug 2006
Default It was a monkey, Its confirmed

I took the 33 to work today along with the 4pin output din so i could make use of the nice meter and iron there.

and yes it had been worked on by monkeys. the L and R lines had been swapped on one end of the output cable as i first thought and the pot for the balance was not centered. It went .25-1.25 on the left and 0.0 to 1 on the right.

This made me rather happy as it was a 10 min fix with no cost instead of the start of a search for new pot or worse.

I was absolutly amazed at how clean it was after opening it for the first time. Not a speck of dust inside, looked like it was new.
For something thats as old as I am i was very impressed as most electronics today look like crap after about 6 months.
  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
PP bias balance pot fred76 Tubes / Valves 1 29th November 2007 06:34 AM
What is true balance? Aaron323 Solid State 8 5th January 2006 07:38 AM
Balance Pot, (=retro?) Cobra2 Everything Else 2 1st December 2003 09:25 AM
Are Balance Controls Still Necessary? runeight Tubes / Valves 32 2nd November 2003 10:47 PM
Balance control 2Bak Pass Labs 4 11th July 2002 07:07 AM


New To Site? Need Help?

All times are GMT. The time now is 07:50 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