HP-97 decimal point with ghost segment d
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07-20-2020, 06:06 PM
Post: #2
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RE: HP-97 decimal point with ghost digit d
Do you see a ghost of the decimal point when segment D is lit? if that is true it would suggest a partial sort between the two signal lines. It looks like segments D and H (decimal point) are on separate anode drivers. The two signals are adjacent to one another on the connector between main board and display board but not on the display connector. I suppose it could even be a fault in the display or ROM 0.
Paul. |
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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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