HP-97 decimal point with ghost segment d

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HP-97 decimal point with ghost segment d

07-22-2020, 10:36 AM

Post: #5

Roland57 Offline

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Posts: 53
Joined: Nov 2018

RE: HP-97 decimal point with ghost digit d

Hi,

Several times I had problems with ghost-digits on hp 67 an hp92 - in all cases the reason was oxidation on the PCB. Residue from e.g. battery electrolyte caused a weak shortage over several conduvtive lines. Careful cleaning with ethanol solved the problem

Roland

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Messages In This Thread

HP-97 decimal point with ghost segment d - AndiGer - 07-20-2020, 03:29 PM

RE: HP-97 decimal point with ghost digit d - Paul Berger (Canada) - 07-20-2020, 06:06 PM

RE: HP-97 decimal point with ghost digit d - AndiGer - 07-21-2020, 03:43 PM

RE: HP-97 decimal point with ghost digit d - teenix - 07-22-2020, 12:19 AM

RE: HP-97 decimal point with ghost digit d - Roland57 - 07-22-2020 10:36 AM

RE: HP-97 decimal point with ghost digit d - AndiGer - 07-22-2020, 04:17 PM

RE: HP-97 decimal point with ghost digit d - teenix - 07-23-2020, 01:06 AM

RE: HP-97 decimal point with ghost segment d - AndiGer - 08-01-2020, 01:14 PM

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