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capacitors worth changing while inside M70


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#1 dan

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Posted 09 April 2019 - 03:24 PM

C520

 

https://www.digikey....emSeq=289418655

 

 

C349, C359, C449, C459, C519

 

https://www.digikey....emSeq=289418654

 

 

on a strange note, C346 is listed as a 56pF electrolytic cap which is impossible. it's also about as big as C359.



#2 dan

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Posted 22 April 2019 - 03:47 AM

I changed out c520, the main filter cap and would you believe the original had its rated capacity and the esr was around 0.04 ohms! Thought it would fix the blast sound from my left speaker while shutting the unit down but it didn't. I suspect my bass fader with a separated feeler now.

#3 Fatdog

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Posted 22 April 2019 - 04:06 PM

You certainly have more patience than me.  I think I would have had a boombox sacrifice ceremony by now.  :lol:



#4 dan

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Posted 22 April 2019 - 05:33 PM

i bought and am restoring the unit to good working condition for my brother. his was stolen in the 80's.



#5 Fatdog

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Posted 22 April 2019 - 08:14 PM

i bought and am restoring the unit to good working condition for my brother. his was stolen in the 80's.

  :thumbsup:  :hooray: