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

Pass Labs This forum is dedicated to Pass Labs discussion.

Threshold 400A  HELP !!
Threshold 400A  HELP !!
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 10th February 2005, 12:52 AM   #1
Airedale is offline Airedale  United States
diyAudio Member
Join Date: Jan 2005
Location: Above ground
Default Threshold 400A HELP !!

Can anyone tell me the factory reccomended fuse size on the power board for this amp ?

I know this is a loaded (and somewhat unfair question), but what generally would cause the power board fuse to blow in one channel at about 50 watts continuous power on these amps ? Is there any smoking gun or "have you looked at this first" type of thing ? Thanks!
  Reply With Quote
Old 10th February 2005, 09:30 PM   #2
Nelson Pass is offline Nelson Pass  United States
The one and only
Nelson Pass's Avatar
Join Date: Mar 2001
Threshold 400A  HELP !!
My schematic does not show a power board fuse - it shows
an output fuse and a AC line fuse. If there is a fuse in line
with the DC supply, it would be on the negative rail, and I
would start with a 3 amp fast blow to see if it pops on turn-on,
which would indicate a failure.
  Reply With Quote
Old 16th February 2005, 11:56 PM   #3
deafbykhorns is offline deafbykhorns  United States
diyAudio Member
Join Date: Aug 2004
Location: florida
Default 400A

I can tell you all about that amp.
You have a bown output transistor
  Reply With Quote


Threshold 400A  HELP !!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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Threshold 400A Airedale Pass Labs 13 8th January 2016 03:21 PM
Threshold 400a Rolexmonger Pass Labs 10 12th July 2007 05:51 AM
Threshold 400a Rolexmonger Pass Labs 1 22nd March 2007 09:03 AM
Threshold 400A deafbykhorns Pass Labs 1 29th August 2004 07:50 PM

New To Site? Need Help?

All times are GMT. The time now is 05:59 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio