Damn SPL Dynamics amp dead after shock! - 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 10th May 2011, 09:10 PM   #1
diyAudio Member
 
Join Date: May 2011
Unhappy Damn SPL Dynamics amp dead after shock!

Hello, whilst out in my car today listening to some beats, my sub box fell over and landed on top of my SPL Dynamics S2000D.
When I went in the boot to investigate I found the red protection light was on. I immediately switched off the amp and back on again. The green light was coming on for a few seconds, then a click, into protection. It was like this everytime I tried.

I took the amp apart looking for any visible damage and everything looked intact except for 1 resistor which I resolderd.
Then, like an idiot I tried the amp without the mosfet clamps and ended up burning 6 fets!
Before this happened the amp did not switch on at all...

I can get replacement fets for a few GBP each but my question is, what would most likely shut down due to the shock?

I have successfully repaired 1 other amp before (I'm a bit of a newbie to all this!)

Any advice welcome - Thanks
  Reply With Quote
Old 10th May 2011, 09:26 PM   #2
diyAudio Member
 
Join Date: May 2011
Just to add.
The voltage was about 14.5v
I removed and ruled out, RCA's, speaker and remote wires.

Like I say, there appeared to be no visible damage...
  Reply With Quote
Old 10th May 2011, 10:14 PM   #3
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Post a photo of the inside of the amp and indicate which resistor you resoldered.
  Reply With Quote
Old 16th May 2011, 03:26 PM   #4
diyAudio Member
 
Join Date: May 2011
Hi sorry it's taken so long to reply. I was having trouble uploading pictures - which was most frustrating I might add...
Here are the pictures of how the board did look before the problem... (10MiB pictures)

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 16th May 2011, 04:02 PM   #5
ultra is offline ultra  Greece
diyAudio Member
 
ultra's Avatar
 
Join Date: Jun 2005
Location: Athens
I have the schematic of S2000D

If you need it, please post your email address
  Reply With Quote
Old 16th May 2011, 04:31 PM   #6
diyAudio Member
 
Join Date: May 2011
Thank you very much

I'm just uploading some pictures of the amplifier as it is now...
jojonab - at - aol.com
Much appreciated!
  Reply With Quote
Old 16th May 2011, 05:15 PM   #7
ultra is offline ultra  Greece
diyAudio Member
 
ultra's Avatar
 
Join Date: Jun 2005
Location: Athens
mail sent
  Reply With Quote
Old 16th May 2011, 07:05 PM   #8
diyAudio Member
 
Join Date: May 2011
Excellent, thank you very much!

This is how the amplifier is at present.

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

As you can see, due to my neglect, I need to replace 6x IRFP064N mosfets and 2 of these... Not sure of the name but, it's parts Q7 & Q8 on the top right of the PWM board...

Click the image to open in full size.

Other pictures;
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

As you can see, the yellow glue at the bottom of one big cap has a crack in it. I will go further into this in a moment...
I will upload a picture of what I soldered now.
  Reply With Quote
Old 16th May 2011, 07:31 PM   #9
diyAudio Member
 
Join Date: May 2011
This is the area I hit with solder. I just thought it looked a little weak so went ahead and reinforced it... it's just the one spot.

Click the image to open in full size.


Going back to when this first happened and the amp was still in the car. I turned it upside down whilst still on (in protect mode) and when I put my hand near this area, I could feel an electrical charge. I don't know if this helps at all?

Click the image to open in full size.
  Reply With Quote
Old 16th May 2011, 07:32 PM   #10
ultra is offline ultra  Greece
diyAudio Member
 
ultra's Avatar
 
Join Date: Jun 2005
Location: Athens
In my opinion you need to replace ALL 12 IRFPs064 to make a reliable power supply.
Seems the two SOT223 transistors (Q7 and Q8) on the power supply board are the drivers.

In my case, someone got me an identical amp but never came back with the parts of the money for them. So, it is left as is. It was a truly fried amp (got fire inside).
Good luck with yours!
  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
SPL Dynamics S-2000D ultra Car Audio 18 18th November 2013 07:25 PM
Active high dynamics/SPL & high performance loudspeaker system for my living room! Robert GS Multi-Way 77 30th December 2012 10:39 AM
SPL Dynamics D6 Schematic Wanted mischka Class D 0 17th September 2009 06:18 PM
Damn UPS & brokers stuff Elkaid The Lounge 37 28th March 2006 02:59 AM


New To Site? Need Help?

All times are GMT. The time now is 11:05 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