My MacBook Air 2017 wouldn’t turn on, I could smell burning. Took the back off to find a burnt capacitor. Can’t seem to find them online to buy. NEb AV7
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Telling us which motherboard model it is (820-XXXX) would allow us to give you a definitive answer. However, these are common capacitors on mac boards. The Code is NEb AV7. N represents the voltage (11V), Eb represents the manufacturing date code (not important) and AV7 represents the capacitance, in this case 62uF.
This is not a standard, off the shelf component, as Apple has probably had them custom designed to their specifications. Look up the part number Augustine suggested and you should be able to order them online from Chinese vendors. Or you could purchase a donor board and transplant the component.
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@steve70870 as my colleague @refectio pointed out already, the capacitor you need is a 62UF 11V 20% Tant(alum)-Poly(mer) capacitor in a Case B2S-1 package. This particular model is a capacitor made by NEC/Tokin.
Hey @oldturkey03 , it's nice to see you back on the forum! I am also dipping my toes...I don't expect to have as much time as before, certainly not while COVID-19 continues. Stay safe!!
@refectio it's good to be back. Hope you are yours are doing well. You stay safe up there. We are still knee deep in this.
Hi @refectio
Stay safe and take care@
Hi @oldturkey03 stay safe too and take care, btw nice display pic too
@salmonjapan good to hear from you. Hope all is well in your part of the world snd that you and your friends snd family are doing well..:-)
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Hi @steve70870
Highly believe it is a same value tantalum capacitor in parallel
AV7
TEPSLB21A626MHF8R
To confirm, just to check the laptop schematics
check on the FET if it is shorted too.
crwdns2934271:0crwdnd2934271:0 Augustine crwdne2934271:0
Thank you so much for the reply. Just need to find where to purchase them in the U.K. now. @salmonjapan
crwdns2934271:0crwdnd2934271:0 Steves Family Vlogs crwdne2934271:0
Thank you to everyone that helped with my problem. i have since replaced the capacitor. once replacing that, the mac was brought back to life. Although whatever the cause of this the battery had gone too. it only had 100cycles, but wouldn’t charge. i was thinking maybe there was another problem on the motherboard, but i took the risk and ordered and new battery, which came today. Replaced it, and all it as it should be again. Thanks once again all. Take care and stay safe.
crwdns2934271:0crwdnd2934271:0 Steves Family Vlogs crwdne2934271:0
Hi @steve70870
Did you manage to source one? if so where did you get one from ? uk?
crwdns2934271:0crwdnd2934271:0 Joshua Annison crwdne2934271:0