29 Dec
2005
29 Dec
'05
3:32 p.m.
Does anyone have a user manual for a Microwriter MW4 chording keyboard-thing?
If so, is there a procedure given to do a hard reset if the batteries
have gone totally flat and you've recharged them? I have one of these
devices which I am currently running off my bench supply (4.8V) in place
of the NiCd. It seems to power up OK, and you can type exactly 8
characters befroe it locks up.
Before I start testing the processor (1802), RAM (6116s), etc, I wondered
if it was simply not initialised correctly and I needed to do some kind
of hard reset.
-tony
30 Dec
30 Dec
4:39 a.m.
Tony Duell wrote:
Does anyone have a user manual for a Microwriter MW4
chording keyboard-thing?
Somewhere, I think I do. I'll have to search for it.
I have one of these
devices which I am currently running off my bench supply (4.8V) in place
of the NiCd.
As you've realised, this is another one of those devices where the
voltage "regulation" is done by the NiCds.
--
John Honniball
coredump at gifford.co.uk
2 Jan
2 Jan
4:14 a.m.
Tony Duell wrote:
I guess I should put this project on hold until I get that sort of
information. It's a waste of time looking for a fault that's not there.
Does anyone have a user manual for a Microwriter
MW4 chording keyboard-thing?
Somewhere, I think I do. I'll have to search for it. I have one of these
devices which I am currently running off my bench supply (4.8V) in place
of the NiCd.
As you've realised, this is another one of those devices where the
voltage "regulation" is done by the NiCds.
6929
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6933
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ard＠p850ug1.demon.co.uk -
coredump＠gifford.co.uk