Gentlepeople,
I'm doing some work with my Pro 380 over the holidays, but have run into a snag
because both my LK201 keyboards are dead. They fail poweron self test -- LEDs
stay on and no response to any keypresses.
The odd thing is that the circuit board itself seems ok; I had a spare board
t
Paul Koning wrote:
>
> Gentlepeople,
>
> I'm doing some work with my Pro 380 over the holidays, but have run into a
> snag because both my LK201 keyboards are dead. They fail poweron self test
> -- LEDs stay on and no response to any keypresses.
>
> The odd thing is that the circuit board itsel
> On Dec 27, 2019, at 1:46 PM, Peter Coghlan via cctalk
> wrote:
>
> Paul Koning wrote:
>> ...
>> I'm considering building a PC keyboard LK201 emulation, should be a fairly
>> simple bit of Arduino code.
>
> Supplies of good non-USB PC keyboards are probably beginning to get harder
> to fin
> > Supplies of good non-USB PC keyboards are probably beginning to get harder
> > to find now too...
>
> True. It could use either kind of keyboard. Also, USB to mini-DIN adapters
> are still sold ($5 in the current L-Com catalog). That seems like a cheaper
> solution than a USB Host shield.
On Fri, Dec 27, 2019 at 02:38:33PM -0500, Paul Koning via cctalk wrote:
>
>
> > On Dec 27, 2019, at 1:46 PM, Peter Coghlan via cctalk
> > wrote:
> >
> > Paul Koning wrote:
> >> ...
> >> I'm considering building a PC keyboard LK201 emulation, should be a fairly
> >> simple bit of Arduino code.
Do you have a known good cable you can swap out?
On Fri, Dec 27, 2019 at 9:56 AM Paul Koning via cctalk <
cctalk@classiccmp.org> wrote:
> Gentlepeople,
>
> I'm doing some work with my Pro 380 over the holidays, but have run into a
> snag because both my LK201 keyboards are dead. They fail power
Yes, but given that the control PCB worked properly by itself, and stopped
working when attached to the key array, it doesn't seem to be a cable issue.
paul
> On Dec 27, 2019, at 7:43 PM, Paul Anderson wrote:
>
> Do you have a known good cable you can swap out?
>
>
> On Fri, Dec 27,
> On Dec 27, 2019, at 3:10 PM, Glen Slick via cctalk
> wrote:
>
>>> Supplies of good non-USB PC keyboards are probably beginning to get harder
>>> to find now too...
>>
>> True. It could use either kind of keyboard. Also, USB to mini-DIN adapters
>> are still sold ($5 in the current L-Com
> There aren't enough wires on a USB connector to allow you to speak the PS/2
> protocol.
How many wires are necessary to speak the PS/2 protocol? How many pins
are there on a USB connector?
In front of me right now I have a Microsoft IntelliMouse Explorer USB
and PS/2 Compatible mouse, and a Ch
On 28/12/2019 01:46, Paul Koning via cctalk wrote:
I can get one and test it with an Apple keyboard, but that doesn't sound right.
There aren't enough wires on a USB connector to allow you to speak the PS/2
protocol. And there are PS/2 to USB adapters (for old keyboards) that are the
same s
> On Dec 28, 2019, at 5:25 AM, Pete Turnbull via cctalk
> wrote:
>
> On 28/12/2019 01:46, Paul Koning via cctalk wrote:
>
>> I can get one and test it with an Apple keyboard, but that doesn't sound
>> right. There aren't enough wires on a USB connector to allow you to speak
>> the PS/2 pr
On Sat, Dec 28, 2019 at 5:39 AM Pete Turnbull via cctalk
wrote:
> Those old adapters are definitely just passive wiring, and were commonly
> supplied with dual-standard mice. That's why they're green.
I have green ones for mice, and purple ones for keyboards (same
signals on USB side, different
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