ppi pc2600.2 smoked

Ppi12xd · 6th January 2012, 06:09 AM

Found this one recently and it was cooked. I dont have any clue what caused this. I also have no electronics diagnostic experience.

I figure I can start with replacing the obviously burnt irfz44 transistors, insulation, and thermal paste. any other ideas from the experienced?

I did glaze over the repair link in someones sig here and will sit down and read all info I can find over the next few days.

Now for the pics. Pretty easy to see how the smoke got out. I would like to try to put it back in.

ivkata · 6th January 2012, 07:54 AM

remove all the power supply fets as they all are no good for sure.check all gate resistors as few appear burned beyond recognition .will also recommend to test all outputs as well as I'm guessing this amp was driven too hard .I got one of this amps here fully working so if u got any questions about any part u cannot read let me know .this is a nice amp ,the last good ppi amps

Ppi12xd · 6th January 2012, 07:22 PM

thanks. ill be ordering up some parts soon.

i used to have a PC2150 and really miss it. i do still have a pc2400.2 that has about 6 hours on it so i may open it up and see how similar it is to the 2600

6th January 2012, 06:09 AM	#1
Ppi12xd diyAudio Member Join Date: Jan 2012	ppi pc2600.2 smoked Found this one recently and it was cooked. I dont have any clue what caused this. I also have no electronics diagnostic experience. I figure I can start with replacing the obviously burnt irfz44 transistors, insulation, and thermal paste. any other ideas from the experienced? I did glaze over the repair link in someones sig here and will sit down and read all info I can find over the next few days. Now for the pics. Pretty easy to see how the smoke got out. I would like to try to put it back in.

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6th January 2012, 07:54 AM	#2
ivkata diyAudio Member Join Date: Dec 2010	remove all the power supply fets as they all are no good for sure.check all gate resistors as few appear burned beyond recognition .will also recommend to test all outputs as well as I'm guessing this amp was driven too hard .I got one of this amps here fully working so if u got any questions about any part u cannot read let me know .this is a nice amp ,the last good ppi amps

6th January 2012, 07:22 PM	#3
Ppi12xd diyAudio Member Join Date: Jan 2012	thanks. ill be ordering up some parts soon. i used to have a PC2150 and really miss it. i do still have a pc2400.2 that has about 6 hours on it so i may open it up and see how similar it is to the 2600