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[41] Odd display problem
04-28-2015, 07:55 PM
Post: #10
emece67 Offline
Senior Member
 		Posts: 379
Joined: Feb 2015
RE: [hp41] Odd display problem
I've found that applying a 7 kHz, 0-6 V square wave to the OS1 pin of the display board solves the problem, even the 10 minutes timeout works as expected.

Thus I'm planning to attach a oscillator to the machine. It must only work when the DPWO signal is high. Seems feasible... except for the low power requirement.

Regards.
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Messages In This Thread
[41] Odd display problem - emece67 - 04-19-2015, 07:45 PM
RE: [hp41] Odd display problem - emece67 - 04-21-2015, 01:45 PM
RE: [hp41] Odd display problem - jebem - 04-22-2015, 04:57 PM
RE: [hp41] Odd display problem - emece67 - 04-22-2015, 08:57 PM
RE: [hp41] Odd display problem - emece67 - 04-26-2015, 07:29 PM
RE: [hp41] Odd display problem - emece67 - 04-27-2015, 06:40 PM
RE: [hp41] Odd display problem - emece67 - 04-28-2015 07:55 PM
RE: [hp41] Odd display problem - jebem - 04-28-2015, 10:16 PM
RE: [hp41] Odd display problem - emece67 - 04-29-2015, 04:46 PM
RE: [hp41] Odd display problem - TASP - 04-29-2015, 05:01 PM
RE: [hp41] Odd display problem - emece67 - 04-30-2015, 10:29 PM
RE: [hp41] Odd display problem - emece67 - 04-30-2015, 11:22 PM
RE: [hp41] Odd display problem - emece67 - 05-01-2015, 07:25 PM
RE: [hp41] Odd display problem - emece67 - 05-01-2015, 07:30 PM
RE: [hp41] Odd display problem - emece67 - 05-01-2015, 11:22 PM
RE: [hp41] Odd display problem - emece67 - 05-03-2015, 12:02 AM



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