Mac Portable Power Woes (what else is new?) — #7

Post #7 by NJRoadfan

Source Forum	Mac Portable Power Woes (what else is new?) — #7
Category	Hardware
Post Date	Mon, 15 Jul 2013 - 15:51
Original URL	https://68kmla.org/bb/threads/mac-portable-power-woes-what-else-is-new.28437/

Post

ALL SMD and Through hole capacitors REQUIRE replacement in this situation. all portable machines that use a single voltage, use multiple DC-DC converters to generate the other voltages required to make the system function, and these are critical to have good caps for proper operation.
And not to completely rule out some out-of-tolerance resistors in the regulator circuits as well. Rare, but can happen.

They were replaced except for C3, somehow I forgot to order that one. I'll add it to the list when I do another capacitor order. So far I haven't had any problems with the 12v line once I insulated those long leads.