Noticed my right gopher on my ngg wasn't dropping. Traced it back to this tip102. Looks like the transistor reads tip120 which may be an issue? I noticed the coils have spade connectors and they were close to the other gopher bracket which may have caused a short and this? I have a new tip102 I'll swap. Just a bit nervous as not sure if this is common or if something will cause it to pop again?
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Quoted from Djshakes:Noticed my right gopher on my ngg wasn't dropping. Traced it back to this tip102. Looks like the transistor reads tip120 which may be an issue? I noticed the coils have spade connectors and they were close to the other gopher bracket which may have caused a short and this? I have a new tip102 I'll swap. Just a bit nervous as not sure if this is common or if something will cause it to pop again?
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Looks like a few resisters at D53 are also cooked which might not help your Tip issue.
Nah - this looks like a typical "magic smoke" failure. The smoke just contaminated the surrounding parts.
That said; a pre driver or something else could be bad as well. I'd swap the TIP120 first and see if the problem continues.
Yes; if your shorting a lug together with something else; that could be the source of magic smoke. I'd insulate the culprits with heat shrink and/or electrical tape. That said; also check the coil diode... just to make sure it didn't blow open during the magic smoke event.
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