Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Rockford Power 550X 4 Channel
Rockford Power 550X 4 Channel
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 24th May 2012, 07:38 PM   #11
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
Did you get a chance to read my last post with the values I posted Perry?
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote
Old 24th May 2012, 07:53 PM   #12
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
I didn't see it earlier.

You can't use the negative speaker terminal. Use the amplifier's ground terminal or one of the non-bridging speaker terminals for the reference (black probe).
  Reply With Quote
Old 24th May 2012, 08:00 PM   #13
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
Ok I will re-check. In post number 9 you requested that I use the negative speaker terminal for testing, you must have meant the non bridging terminal.
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote
Old 24th May 2012, 08:07 PM   #14
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
C312: 0.656
C312: -0.986

C314: -1.004
C314: 0.654
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote
Old 24th May 2012, 09:26 PM   #15
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
You'll need to connect the RCA shield ground to the primary ground.

The next time you post the voltages, make a note of which terminal of the capacitors to the 3.32k resistors.
  Reply With Quote
Old 25th May 2012, 12:56 AM   #16
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
So I can un a jumper from the rca shield to the amps main ground terminal?
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote
Old 25th May 2012, 01:09 AM   #17
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Yes.
  Reply With Quote
Old 31st May 2012, 07:05 AM   #18
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
The negative terminal of C314 which goes to the 3.32k resistor
reads: -0.998 vdc

The positive terminal of C314 reads: 0.654 vdc

The negative terminal of C312 which goes to the 3.32k resitor
reads: -0.998 vdc

The positive terminal of C312 reads: 0.648 vdc
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote
Old 31st May 2012, 01:10 PM   #19
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
What's the resistance between the base of Q301 and the base of Q302?
  Reply With Quote
Old 31st May 2012, 07:21 PM   #20
seankane is offline seankane  United States
diyAudio Member
 
seankane's Avatar
 
Join Date: May 2010
Location: Washington State
Resistance between base of Q301 and Q302 reads: 46.0 k ohms

Also as a side note I have -1.898 vdc on the drains of Q310 and Q311.

Could they be leaky?
__________________
Pyramid 52 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch
  Reply With Quote

Reply


Rockford Power 550X 4 ChannelHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rockford fosgate 550x mike49504 Car Audio 15 10th June 2011 05:11 AM
rockford 501s one bad channel stoke Car Audio 18 23rd February 2011 04:43 PM
Rockford fosgate 550x mike49504 Car Audio 1 11th February 2011 12:30 PM
Rockford Power 550x bias issue brandes.cm Car Audio 5 24th November 2009 01:13 PM
rockford fosgate 550x mike49504 Car Audio 21 6th December 2008 10:26 PM


New To Site? Need Help?

All times are GMT. The time now is 07:42 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki