class d lightning audio (rockford) 1000 watt help - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 1st April 2005, 07:53 AM   #1
zfactor is offline zfactor  United States
diyAudio Member
 
Join Date: Apr 2005
Location: florida
Default class d lightning audio (rockford) 1000 watt help

hello all new to your forums. i have here a 1000watt 1ohm class d lightning audio. i have experience with other electronics prior but never worked on class d amps before. i have irfz44n hexfet mosfets burned out (5 of them) customer let the amp get wet!! and a voltage reg that is numbered
K216-
A1266
GR
i can seen to find these or get a good cross on these anywhere any ideas??
also anything else to be concerned with in repairing a class d amp??
the resistors before the mosfets also went with them. those should be easy enough to find though. thanks hope someone can help
  Reply With Quote
Old 5th April 2005, 08:42 PM   #2
FrankH is offline FrankH  Netherlands
diyAudio Member
 
FrankH's Avatar
 
Join Date: Dec 2004
Location: Utrecht
Default Lightning

Hi ZFactor,

5 HEXFETS? Hm Strange. 4 or 8 might be more logical. But that's the easy part. Test and replace if broken.

Is there some sort of (IC Chip)driver, driving the FET's? If there is, that might be broken too.

Than the reg: is it in the control part or the powerpart of the amp?
What are the surrounding values of the (electrolytic)caps connected to the reg?

Try to find out the pin config of the IRFZ and see in what line the broken Resistors are. Tells you a little more about the rest of the circuit.

Better to find some schematics and post them.

Good luck, Frank
  Reply With Quote
Old 5th April 2005, 08:57 PM   #3
IVX is offline IVX  Russian Federation
diyAudio Member
 
IVX's Avatar
 
Join Date: Jul 2003
Location: Everywhere (Buddhist's context)
if A1266 in the to-92 case, then it's 2sa1266 P-BJT 50V/.1A
__________________
Best regards,
E1.
  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
Lightning Audio 2000watt Class D confused256 Car Audio 21 5th August 2013 10:32 PM
Help With A 500 Watt subwoofer and a 1000 amp Bgpoet Solid State 2 30th December 2008 07:41 AM
1000 watt Amp Modules Zero Cool Class D 24 29th September 2008 08:32 PM
1000 Watt with usb input ! cph2000 Class D 1 4th October 2007 06:04 AM
lightning audio amp repair doughboi916 Car Audio 14 31st August 2007 09:05 PM


New To Site? Need Help?

All times are GMT. The time now is 12:00 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