HP-65 - 1605A02841 - Weird display behavior
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02-09-2020, 09:04 PM
Post: #1
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HP-65 - 1605A02841 - Weird display behavior
Hi everyone
We are working on this unit but we need your help ! It powers up, but there is a segment always lit no matter what. Also, the - segment is missing in all the digits so that a 8 is shown as a 0 We thought it was a bad cathode driver but funny thing is that we used a spare keyboard pcb which works fine and it behaves as before This makes us think that is the logic board faulty What could we check ? Pictures can be found here : HP-65 - 1605A02841 weird display behavior Thanks for help !!!! Edoardo & Alberto |
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