Am Do 18. Dezember 2008 schrieb Al Johnson: > I'm moving this one to the hardware list since the topic is now more suited. > > On Thursday 18 December 2008, Joel Newkirk wrote: > > On Wed, 17 Dec 2008 17:00:34 +0000, Al Johnson > > > > <[email protected]> wrote: > > > On Wednesday 17 December 2008, Joel Newkirk wrote: > > >> I don't know what the physical > > >> difference is for the power tweak. (V6 can power up from wall power > > > > > > without > > > > > >> battery) > > > > > > It's a bigger C1767 - according to the schematics it's 4.7uF on A5, 47uF > > > on A6 > > > and 100uF on A7. Werner's writeup of the investigations is here: > > > > > > http://people.openmoko.org/werner/gta02-chg/ > > > > Thanks - that was most of what I was needing. Unfortunately it doesn't > > identify the real estate occupied by C1767 there, nor in the component > > placement diagrams. > > > > Can someone point me at the right spot on the board? If it's got enough > > room for the same 3528 cap we're looking at for the big-C rework (which I > > doubt, though it looks like it will fit for the big-C position) that would > > be great. > > At times like these I wish the component placement file was searchable like > the schematic. I would expect it to be near U1701, to the gps side of the > battery and headset connectors, but so far I haven't spotted it. There's a > pair of pads unlabelled between C1764 and H-TP1704 that seem a reasonable > size and location but could be something else entirely.
Sorry about the non-searchability of component-placement. Actually I also find it's very annoying. I'll go to spot the capacitor for you. It's the only difference from A5 (non-boot) to A7(always boot). cheers jOERG
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