Post Reply 
cathode for HP91
07-31-2015, 08:27 AM (This post was last modified: 07-31-2015 08:49 AM by isanchez.)
Post: #6
RE: cathode for HP91
Hi Bernhard,

maybe we need to launch a crowdfunding initiative! ;-D the thing is to coordinate to all people affected by cathodic failures.

Thanks Katie!, I think you are talking about the card reader board. The display /keyboard circuit board list of components is in table 4.9, where R2* is listed but I can't see in the diagram of page 4.23. I believe in this page it is mentioned as R1*, instead of R2*...but maybe I am wrong.
may I kindly ask you what should I do to reduce the low battery indicator sensitivity (as it is always "on"): to increase or decrease the resistor value?

Kind regards


Ignacio
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
cathode for HP91 - isanchez - 07-30-2015, 06:29 AM
RE: cathode for HP91 - Katie Wasserman - 07-30-2015, 04:11 PM
RE: cathode for HP91 - isanchez - 07-31-2015, 04:59 AM
RE: cathode for HP91 - Katie Wasserman - 07-31-2015, 05:09 AM
RE: cathode for HP91 - PANAMATIK - 07-31-2015, 08:04 AM
RE: cathode for HP91 - Thomas Radtke - 07-31-2015, 08:34 AM
RE: cathode for HP91 - Katie Wasserman - 07-31-2015, 04:04 PM
RE: cathode for HP91 - Thomas Radtke - 07-31-2015, 05:34 PM
RE: cathode for HP91 - isanchez - 07-31-2015 08:27 AM
RE: cathode for HP91 - Etienne Victoria - 08-02-2015, 08:35 AM
RE: cathode for HP91 - isanchez - 08-04-2015, 07:21 AM
RE: cathode for HP91 - d b - 08-04-2015, 02:25 PM
RE: cathode for HP91 - TASP - 08-05-2015, 05:22 AM



User(s) browsing this thread: 1 Guest(s)