Marshall AVT50H - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

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 29th July 2007, 05:15 PM   #1
PAJW is offline PAJW  United States
diyAudio Member
Join Date: Jul 2007
Default Marshall AVT50H

Need help troubleshooting a Marshall AVT50H. Very low volume on either Clear or O/D with Volume and Gain pots all the way up. One set of PCB mount LCDs operational - more gain, more light. Other set ... nothing. CD in and Headphone jacks don't work either. Fuse OK and tube replaced. Any ideas ...

Thanks -
  Reply With Quote
Old 1st August 2007, 03:29 AM   #2
diyAudio Member
Join Date: Mar 2005
Location: cleveland ohio
Send a message via ICQ to MadSkillzMan Send a message via AIM to MadSkillzMan Send a message via MSN to MadSkillzMan Send a message via Yahoo to MadSkillzMan
Any luck? ive got one with the same problem

only neither LED clipping section works. It will work however when it POPS and the speaker goes wicked loud for a few seconds
  Reply With Quote
Old 1st August 2007, 02:26 PM   #3
PAJW is offline PAJW  United States
diyAudio Member
Join Date: Jul 2007
Yes, turned out to be the power amp. Audio Electronics/Dallas replaced it for me and it works just fine. Marshall has a three year warranty (which I didn't know) so that was even better ...
  Reply With Quote


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
marshall avt50h schematic? screaminglucy Instruments and Amps 33 23rd January 2013 02:39 AM
circuit board problems for AVT50H xbox540 Solid State 0 24th August 2007 06:01 PM
mg 100 dsp marshall amp topkat Chip Amps 0 24th October 2006 10:31 PM
Help with Marshall Avt50H. tkelly4585 Instruments and Amps 0 16th October 2006 06:31 AM
need help for Marshall PCB Ahmad_tbp Instruments and Amps 2 24th April 2006 08:19 PM

New To Site? Need Help?

All times are GMT. The time now is 08:04 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2