Ok need amp help poping / cracking on left channel - diyAudio
Go Back   Home > Forums > General Interest > Car Audio
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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 22nd November 2008, 07:50 AM   #1
diyAudio Member
Join Date: Nov 2008
Default Ok need amp help poping / cracking on left channel

Ok I've been a long time reader (soaking up knowledge) but now i need some advice and i'm hoping you guys can help.

I have an eclipse 3001 / 3021 2 channel amplifier - Hopfully you guy's have heard of it (for those who haven't it is an oldschool amplifier that was built by the japanese are of eclpise back in the mid 90"s. The 3001 is a power supply unit accepting the 12 volt input and the 3021 in the signal amplifier. the two units are connected via 2 xlr cables 3 pin and 5 pin (ala adcom etc) to supply power from the 3001 to the 3021. similar to a pre amp and amp setup used in home audio. (help reduce noise etc.)
They were also produced under the sound monitor name in japan with a grey finish.

now on to my problem. I have an intermitant crackling / poping noise from my left channel. My first thought was a leaking capacitor so i have started checking them one by one but my question is could it possibly be something else. so far I have come up empty.

I've attached a couple of pictures of the circuit board itself for reference and have high detailed images available via e-mail (unfortunatly i can get no help from united radio in NY - or eclipse headquarters)
Attached Images
File Type: jpg 3021.jpg (93.8 KB, 52 views)
  Reply With Quote
Old 22nd November 2008, 08:29 AM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Leaking caps would also be my first guess but leaking transistors (electrically leaky) can also cause this problem. If you heat the transistors (smaller, driver transistors) with a heat gun and the noise changes, heat each one individually until you find the defective one.
  Reply With Quote
Old 22nd November 2008, 02:05 PM   #3
diyAudio Member
Join Date: Nov 2008

I'm not all that familiar with photobucket but I tried to create an album with all the close up photo's I have hopefully you guys can use the link.
  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
low audio on left channel jvc vn-300 stevodude Solid State 8 10th February 2014 02:15 PM
Adcom GFA-555 mk2 left slight cracking in high freq lga775 Solid State 2 4th December 2010 11:30 AM
K-502 Left Channel is out udailey Tubes / Valves 3 21st March 2008 05:12 PM
DH-220 left channel dead rfarn Solid State 8 11th May 2006 11:35 PM

New To Site? Need Help?

All times are GMT. The time now is 09:35 AM.

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