Guys please remember to trim the excess content from emails particularly
if you are copying something from the digest.
-- John.
>
> That's actually kind of cool.
>
> But, if you want to get rid of it, maybe double check that you put your
electrolytics in with the right polarity.
>
> ?b9
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t; On 17 Jun 2020, at 04:52, B 9 wrote:
> >
> > On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier > <mailto:e...@vdtier.nl>> wrote:
> > It?s the kind of noise where you can hear the processing of the CPU, more
> > when its busy and it seems to have clear ?struct
welcome! not that I know of but can you do us a favor and not quote the
entire digest when you post? thanks!
Greg
right polarity.
>
> ?b9
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Message: 5
Date: Wed, 17 Jun 2020 09:1
one thing to check. did you misalign the flex cable into the connector on
the PCB or the monitor? sounds like you buzzed it out though.
pretty strange. all you did was change the nicad huh? hmm. Can you check
the SRAM voltage? when laptop is OFF it should have ~3.2 V or so. When
laptop is
Hi,
Turned the memory power off for one minute and then back on it seem to solve
the power button issue but the screen is still the same.
Also the voltage of the battery when no power from battery’s or DC jack is
around 3.79v.
Thanks,
Ethan
gt;
> > On 17 Jun 2020, at 04:52, B 9 wrote:
> >
> > On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier mailto:e...@vdtier.nl >> wrote:
> > It?s the kind of noise where you can hear the processing of the CPU,
> more when its busy and it seems to have clear ?structu
I had some interesting issues with my T200 which I converted to supercap. (It
does work, but I don't recommend it because you get behaviour like this and
worse while the cap is charging up.)
Have you tried turning the memory power switch off for a minute and back on?
The voltage on the
ght polarity.
>
> ?b9
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Message: 5
Date: Wed, 17 Jun 2020 09:1
Sounds like the cable for the screen might not be correctly inserted in the
connector. You could revisit the cable and make sure it was not broken or
cracked when the computer was re-assembled. The plastic ribbon cable is a
bit tricky to re-insert.
The black screen (if the boot process is
Did you double check the polarity of the new battery?
If the CMOS battery was flat on install, it will take some time to charge
up.
It has to be charged or the T200 won't work.
..Steve
On Wed, Jun 17, 2020 at 4:31 PM ethan saul wrote:
> Hi all,
>
>
>
> Anyone know anything about Tandy 200
Hi all,
Anyone know anything about Tandy 200 black screen of death? I have changed the
CMOS battery and tried a cold start using CTRL+SHIFT+BREAK+RESET.
When I power it on I hear a click from the speaker and the screen goes black
the contrast knob doesn't dim or darken the screen.
I have also
Erik,
I have MANY, MANY more lines commented here:
http://www.club100.org/memfiles/index.php?=0==Ken%20Pettit/M100%20ROM%20Disassembly
Ken
On 6/17/20 10:22 AM, Erik van der Tier wrote:
I’m currently merging the standard virtual-t output, but any additional notes
and comments would be great
I’m currently merging the standard virtual-t output, but any additional notes
and comments would be great to add in!
Cheers,
Erik
> On 17 Jun 2020, at 18:10, Ken Pettit wrote:
>
> Hi Erik,
>
> I presume you are also referencing the additional M100 ROM annotations I did
> by hand which
Sounds like a plan, I’m currently doing a first pass getting the routine
headercomments in and translating the none sense opcodes into db and dw’s from
the m100 dis. I’ll set up a github repo once I’m through this first pass. Next
pass will be find and replace on all standard addresses and
Hi Erik,
I presume you are also referencing the additional M100 ROM annotations I
did by hand which are not part of the VirtualT standard output (and
quite extensive)?
Ken
On 6/17/20 8:35 AM, Erik van der Tier wrote:
Hi,
I’m currently well on my way to merge the annotated M100 rom with a
Hi, it would be great to make this collaborative. I have a lot of my own
notes on a disassembly, and I also have a paper disassembly that I acquired
a while back.
On Wed, Jun 17, 2020 at 11:35 AM Erik van der Tier wrote:
> Hi,
>
> I’m currently well on my way to merge the annotated M100 rom
Hi,
I’m currently well on my way to merge the annotated M100 rom with a disassemble
of the T102 rom. This will include documentation of the differences. I hope to
create a working .asm file with labels and such that can be reassembled into a
functioning Rom (I’m working my way towards a custom
Jim,
Just yesterday I was thinking how my T102 would make a good PSK31 terminal,
but hearing that I'm not so sure about that idea anymore...
樂
On Wed, Jun 17, 2020 at 10:04 AM Jim Toth wrote:
> An AM radio near a Model T sounds like that, too.
>
>
>
> - Original Message -
> *From:* B 9
Thanks Steve, looking forward to getting mine. :-)
Cheers,Bert
On 6/16/20 9:11 PM, Stephen Adolph wrote:
> I am well into the 2nd build of REXCPM. All of the REXCPM modules are
> built, untested, but I still need to build the adapters.
> So good progress. I'm aiming to ship the next tranch
Have you tried disconnecting the beeper in case bus noise is leaking across
somehow?
m
- Original Message -
From: Erik van der Tier
To: m...@bitchin100.com
Sent: Wednesday, June 17, 2020 3:13 AM
Subject: Re: [M100] Noisy T102
Hehe, yeah, if it couldn’t be a sign of
An AM radio near a Model T sounds like that, too.
- Original Message -
From: B 9
To: m...@bitchin100.com
Sent: Tuesday, June 16, 2020 10:52 PM
Subject: Re: [M100] Noisy T102
On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier wrote:
It’s the kind of noise where you
I have to open it up again, tonight to check on leaking anyway, so I’ll look up
the numbers of those caps. I really need to get myself a decent desoldering
station, it’s currently taking too much time to desolder these buggers.
Erik
> On 16 Jun 2020, at 13:31, Stephen Adolph wrote:
>
>
Hehe, yeah, if it couldn’t be a sign of trouble it would definitely be cool ;).
I remember that other 80’s computers made these kinds of sounds while
processing. I know our Philips P2000T did and later our Amstrad CPC464 as
well…. Cheap analog electronics I guess…
I did double and triple check
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