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Class D Switching Power Amplifiers and Power D/A conversion

amp repair,  need help.  video inside
amp repair,  need help.  video inside
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Old 9th November 2011, 02:56 AM   #1
firebirdjimbo is offline firebirdjimbo  United States
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Default amp repair, need help. video inside

ok, with power, the amp is drawing too much current and some of the chips are getting very hot, i put some things back in the wrong spots. be easy on me, its my first amp repair. heres the video. please watch the whole thing and let me know what you think. thanks. need any other info, please ask.

blown amp - YouTube

Last edited by firebirdjimbo; 9th November 2011 at 03:24 AM.
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Old 9th November 2011, 04:44 PM   #2
firebirdjimbo is offline firebirdjimbo  United States
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UPDATE. ok, there were 4 TIP35c's so the 35c's went on one side, and the 36c's go on the other, can someone tell me which side goes where?
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Old 9th November 2011, 09:30 PM   #3
nigelwright7557 is offline nigelwright7557  United Kingdom
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I would check the output mosfets first and replace where necasary.
If the chips still get hot then one or more might have fried.

Had a similar problem on 2092 based system and the mosfets frying took out the 2092 too. Replaced both and teh amp was fine.
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Old 10th November 2011, 11:09 PM   #4
firebirdjimbo is offline firebirdjimbo  United States
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Quote:
Originally Posted by nigelwright7557 View Post
I would check the output mosfets first and replace where necasary.
If the chips still get hot then one or more might have fried.

Had a similar problem on 2092 based system and the mosfets frying took out the 2092 too. Replaced both and teh amp was fine.
are you talking about the N0506 mosfets? or the TIP35/36c's?
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Old 10th November 2011, 11:23 PM   #5
nigelwright7557 is offline nigelwright7557  United Kingdom
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Quote:
Originally Posted by firebirdjimbo View Post
are you talking about the N0506 mosfets? or the TIP35/36c's?
I would check both.
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