Greetings all. I have 3 UMK3 boards that are in various states of non-workyness.
Board #1 - DEAD. Re-seated everything that I could including the roms and nothing. Dead.
Board #2 - Bad U13 and U17 Ram chips. Didn't do any troubleshooting. Looks like someone has already tried to replace the ram chips...unsucessfully. There's still a whole bunch of flux around them and one is crooked.
Board #3 - Also bad U13 and U17. Again, no troubleshooting. Looks like someone tried to re-flow the solder pads though.
I listed these here as MMAO, but I ask that you keep in mind that since these are fully populated boards with ALL the chips and roms that you take that into account when making an offer. These boards go for $10-$20 completely UN-populated.
Thanks

Board #1 - DEAD. Re-seated everything that I could including the roms and nothing. Dead.
Board #2 - Bad U13 and U17 Ram chips. Didn't do any troubleshooting. Looks like someone has already tried to replace the ram chips...unsucessfully. There's still a whole bunch of flux around them and one is crooked.
Board #3 - Also bad U13 and U17. Again, no troubleshooting. Looks like someone tried to re-flow the solder pads though.
I listed these here as MMAO, but I ask that you keep in mind that since these are fully populated boards with ALL the chips and roms that you take that into account when making an offer. These boards go for $10-$20 completely UN-populated.
Thanks
