Lanzar vibe 266 - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

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 August 2009, 07:28 PM   #1
diyAudio Member
 
Join Date: Aug 2009
Default Lanzar vibe 266

my son bought off craigslist speakers and the amp, hooked everything up worked great, then when turned back on had blown radio fuse, replaced fuse radio works, but keeps blowing one of the 20amp fuses on amp, and ideas of what happened,
  Reply With Quote
Old 31st August 2009, 08:25 PM   #2
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
If it only blows the fuse after the remote voltage is applied, you likely have shorted output transistors (large transistors clamped to the heatsink near the large blue resistors) in one channel.

With your multimeter set to ohms, you should not read anything near 0 ohms when the probes are touched to the terminals of any individual transistor in any configuration. If any are shorted (~0 ohms between any 2 legs of any individual transistor), they will likely be shorted from leg 2 to leg 3 but you should check 1-2, 1-3 and 2-3.

If it appears that several are shorted, you'll need to remove all that appear shorted from the board and check them individually. If you find only 1 shorted in a group of parallel-connected transistors, you can reinstall the ones that are not shorted to see if the amp will power up. If it does, you need to replace all in that group of parallel transistors.
  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
Lanzar VIBE 530 1 bad channel turbosundance Car Audio 14 31st August 2009 07:25 PM
Holey Brace and other vibe quellers 901Fixer Multi-Way 5 24th June 2009 10:45 PM
Lanzar vibe 430 intermittent channel n2audio Car Audio 5 22nd August 2007 06:04 AM
Lanzar Vibe 1800D Problem, please help! manni Car Audio 3 13th October 2006 11:20 PM
Lanzar Vibe 531 amp question. MyNameIsJake Car Audio 6 24th September 2006 02:37 AM


New To Site? Need Help?

All times are GMT. The time now is 09:51 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