Hifonics XX Hercules - Page 3 - 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 16th October 2012, 11:38 AM   #21
diyAudio Member
 
Join Date: Oct 2010
Which schematics are you guys referring to?
  Reply With Quote
Old 16th October 2012, 11:55 AM   #22
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
SPL ext2000d

Sent from my DROID BIONIC
__________________
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator
  Reply With Quote
Old 16th October 2012, 12:02 PM   #23
diyAudio Member
 
Join Date: Oct 2010
Mind emailing me a copy?
  Reply With Quote
Old 16th October 2012, 12:28 PM   #24
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
Send a request to brandes.cm@Gmail.com

Sent from my DROID BIONIC
__________________
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator
  Reply With Quote
Old 16th October 2012, 11:45 PM   #25
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
The -12V regulator was reading -15V, replaced that, voltage is fine. That was the only issue. The triangle wave form on Pin1 of the TL072 is still messed up.

Output waveform, with no input signal
Roughly 250hz
Click the image to open in full size.
__________________
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator
  Reply With Quote
Old 17th October 2012, 02:04 AM   #26
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
Found a resistor that was out of tolerance, seems to have fixed the issue. Need to test under load.
__________________
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

Last edited by brandes.cm; 17th October 2012 at 02:11 AM.
  Reply With Quote
Old 17th October 2012, 08:40 AM   #27
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Post a photo or the circuit board designation of the resistor. It may help someone else in the future.
  Reply With Quote
Old 17th October 2012, 11:35 AM   #28
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
Click the image to open in full size.

R24 was the resistor, was reading 15k ohms.

Is there any way to bypass the secondary board with the controls on it. I believe it has an issue. My waveform starts to get noise at the peak without much gain.
__________________
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator
  Reply With Quote
Old 17th October 2012, 11:58 AM   #29
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
I would think that you could bypass it by jumping the similar colored wires for the shielded cables in the harness.
  Reply With Quote
Old 30th October 2012, 02:29 AM   #30
just another
diyAudio Moderator
 
wintermute's Avatar
 
Join Date: Aug 2003
Location: Sydney
Blog Entries: 22
noobies question moved to here --> Help With Gen XX Hifonics Hercules other posts regarding the move deleted.
__________________
Any intelligence I may appear to have is purely artificial!
Some of my photos
  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
Hifonics XX Chaos mike49504 Car Audio 1 3rd September 2011 05:08 AM
Hifonics XX Chaos mike49504 Car Audio 35 23rd July 2011 06:06 AM
Hifonics Hercules VII mike49504 Car Audio 1 10th June 2011 04:41 PM
Hifonics hercules xi mike49504 Car Audio 12 9th January 2010 06:59 PM
hifonics colossus xx mike49504 Car Audio 7 28th November 2008 11:15 PM


New To Site? Need Help?

All times are GMT. The time now is 12:21 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