DK & DK Jr. Board Repair

jayleone

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Donor 2015-2016
Joined
Jul 16, 2009
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Providence, Rhode Island
I have a DK (4 board version) as well as a DK Jr. (2 board version) that both need repair. No video output at all on the DK board and garbage video on the DK Jr. board. I will check the voltages on the supply first, but I'm pretty sure they are OK. Anyone good at debugging these boards? I'm willing to pay someone to repair both of them for me. :D

Thanks!
 
On the DKJR, try reseating the Z80 cpu. Otherwise take the Z80 CPU off the DK board and replace the one on the DKJR with it. Otherwise Dick Millikan is your best bet. His userid here is dickmillikan
 
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