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JL Slash 500 v1 Help
JL Slash 500 v1 Help
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Old 23rd December 2011, 03:02 AM   #51
RiLoWa is offline RiLoWa  United States
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Slow down and don't get ahead of Perry's direction. There are several things that you needed to check BEFORE you put in the IRF540's, some he has already told you and some he will. These JL amps can be a pain in the rear if you're impatient.

Q504 - Q507 are the outputs, IRF540's. If you have them installed, you should carefully remove them to continue on.

Once removed, recheck all the IRF540's ensuring they are still good. Visual inspection is of no use, use your meter.

Look closely for solder bridges where you have done some soldering work, use your meter to verify there are no shorts everywhere you have been.

Then go back and answer post #46.
Tools - 1. TPI Scope Plus 440 2. B&K 2125 20MHz Dual Trace 3. Sorensen DCR20-50B 4. B&K 4011 5MHz Function Generator 5. Weller WESD51 6. A big hammer
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Old 28th December 2011, 01:58 AM   #52
evianamp2011 is offline evianamp2011  United States
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Hell I have the same problem. My 500/1 turns green when powered up but absolutly no audio output. Mine has absolutly no burnt resistors or transistors, I think it might be the power supply. How can I check it or the rail voltage?
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Old 28th December 2011, 04:37 AM   #53
Perry Babin is offline Perry Babin  United States
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Old 27th June 2013, 12:27 AM   #54
3025826 is offline 3025826
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Hey Perry I know its been awhile but I got her back out and I want to get back after it. I've attached pictures showing what I've checked to verify that I'm checking the right things. All the adjacent legs on the same side read the same when touched in the same fashion.
Attached Images
File Type: jpg On.jpg (544.8 KB, 49 views)
File Type: jpg Ohms.jpg (628.6 KB, 49 views)
File Type: jpg Volts.jpg (651.0 KB, 49 views)

Last edited by 3025826; 27th June 2013 at 12:36 AM. Reason: images
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