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Old 21st November 2011, 09:46 PM   #11
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Start with the scope set to 5v/div and 5uS. Adjust from there.

Yes.
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Old 21st November 2011, 10:09 PM   #12
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What is the waveform suppose to look like on this amp ?

All i get is the trace line with vertical lines when i touch the gate pads
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Old 21st November 2011, 10:19 PM   #13
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You should see something like the attached image.
Attached Images
File Type: jpg P1010047b.jpg (355.3 KB, 95 views)
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Old 21st November 2011, 10:29 PM   #14
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Ok ..

Will the low ohm's led light since there are no outputs in circuit or is there another problem??
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Old 21st November 2011, 10:34 PM   #15
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I don't know.

Do you see that waveform on all 4 transistors?
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Old 21st November 2011, 10:39 PM   #16
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Yes i see the waveform on all 4 transistors and they look just like the image..


So i solderd in new outputs and powerd it up amp idles perfectly but the low ohm's light is still on..
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Old 21st November 2011, 11:09 PM   #17
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Does it produce audio?

Did you desolder the jumper on the IC?
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Old 22nd November 2011, 12:45 AM   #18
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I took the jumper off the IC..

Amp doesnt produce audio ..
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Old 22nd November 2011, 03:56 AM   #19
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Do you have rail to rail oscillation on the outputs?
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Old 22nd November 2011, 07:51 PM   #20
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Do you have rail to rail oscillation on the outputs? NO
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