jono-ats wrote:
In my experience (a bit limited with this model) if the entire line matches, you should be able to do a board swap without changing anything.
You're meaning the "A/A0G0 A/A" line, right? (Is that the firmware revision?)
Yeah, I'm hoping I can dig up a perfect match.
Anyone have further details on the Hitachi firmware numbering scheme, or is there anyway I could pull the firmware off the old PCB and upload it to the donor PCB?jono-ats wrote:
If that doesn't work, look at the two PCBs. The parts layout should match exactly; as should the label on the other side (e.g. D/A or C/A). You can swap the MPU and it should work. (Note that you'll need SMT gear to swap the MPU).
Thanks. I'm not going to redo the SMT stuff (*note 1*) so an exact match is what I'm going for.
(Note 1: Well, I *might* try the SMT route only after everything else is 100% confirmed to not work...
)
jono-ats wrote:
If the white label on the back of the board doesn't match, don't even attempt it.
Well, it's not a 100% match (see firmware question), but most everything else is. I might spring for it - it's a cheap enough experiment even if it doesn't work.
Dan