One channel of my Parasound HCA1000A bit the dust - 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 23rd May 2010, 04:31 AM   #1
diyAudio Member
 
Join Date: Aug 2009
Default One channel of my Parasound HCA1000A bit the dust

Gents:

I have a Parasound HCA-1000A that I have been using primarily as a rare chan amp in my HT rig for the past 5+ years. The fronts are driven by Parasound 1206. I am pretty happy with the sound. Much better than the Adcom amps they replaced.

I recently pulled the HCA1000A out of my HT system to drive a pair of Altec 846Bs. Last night, after extensive listening, one channel completely ceased to work. I get complete silence.

The costs of this amp is such that it does not make sense to send it for repairs. I want to try fixing it myself. Is there a "typical" failure mode to amp that I can try to shoot in the dark to replace? I have no schematics to work with. Fixing this myself will be a challenge.

Can someone offer any suggestions and help?

Thanks.
  Reply With Quote
Old 23rd May 2010, 06:54 AM   #2
diyAudio Member
 
john curl's Avatar
 
Join Date: Jul 2003
Location: berkeley ca
You have to give more information, before we can help. Did it smoke? What about fuses?
Connections OK, DC offset?
  Reply With Quote
Old 23rd May 2010, 10:46 AM   #3
diyAudio Member
 
Join Date: Aug 2009
Default Parasound HCA1000A - one channel dead

John:

Thanks for responding.
I was not in the room at the time, so I can't attest to smoke/no-smoke question.
The other channel sounds fine. SO the AC fuse is good. I assume the PS is good.
The speakers work fine. Nothing was blown.
I do not know if the speakers are fused or not. I can put a DMM on the output terminals and measure the DC voltage level. How much am I expected to read?

I have not taken the cover off yet. Put when I do, I will look for burned parts. I am hoping the power trans are not blown.....

ANyone with a schematic for this that they can share?

Kwing
  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
Parasound 1200 II left channel static and.... AJ Bertelson Solid State 34 11th February 2013 12:28 PM
For Sale: Parasound HCA-1000 2 Channel Amplifiers mhealy4998 Swap Meet 2 9th November 2009 10:28 PM
Parasound HCA 2003 3 channel power amp doerfast Swap Meet 0 22nd March 2009 10:49 PM
FS: Parasound HCA-1203A 3-channel amp - read desc. valnar Swap Meet 2 7th September 2004 10:03 AM


New To Site? Need Help?

All times are GMT. The time now is 01:39 PM.


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