3.7/3.8 sounds normal. But charging. The key thing is - what is the voltage when you have no input power, like batteries or +6V DC. that reveals the actual state of charge.
On Wed, Jun 17, 2020 at 5:07 PM ethan saul <[email protected]> wrote: > Hi, > > > > The battery was charged when I got it today. > > It is in the correct way. > > The cable testes fine for the screen when I tested it with my multimeter. > > Is it possible of overvoltage on the battery side? Since it is rated at > 3.6v but my multimeter say it is 3.7-3.8V. > > But will let it charge for a bit. > > > > Thanks, Ethan > > > > *From: *[email protected] > *Sent: *17 June 2020 09:39 PM > *To: *[email protected] > *Subject: *M100 Digest, Vol 114, Issue 12 > > > > Send M100 mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.bitchin100.com/listinfo.cgi/m100-bitchin100.com > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of M100 digest..." > > > Today's Topics: > > 1. Rexcpm update (Stephen Adolph) > 2. Re: Rexcpm update (David Rogers) > 3. Re: Noisy T102 (B 9) > 4. Re: Noisy T102 (Erik van der Tier) > 5. Re: Noisy T102 (Erik van der Tier) > 6. Re: Noisy T102 (Stephen Adolph) > 7. Re: Noisy T102 (Jim Toth) > 8. Re: Noisy T102 (Mike Stein) > 9. Re: Rexcpm update (Bert Put) > 10. Re: Noisy T102 (Alex ...) > 11. Annotated disassemble of T102 rom (Erik van der Tier) > 12. Re: Annotated disassemble of T102 rom (Stephen Adolph) > 13. Re: Annotated disassemble of T102 rom (Ken Pettit) > 14. Re: Annotated disassemble of T102 rom (Erik van der Tier) > 15. Re: Annotated disassemble of T102 rom (Erik van der Tier) > 16. Re: Annotated disassemble of T102 rom (Ken Pettit) > 17. Tandy 200 Black Screen (ethan saul) > 18. Re: Tandy 200 Black Screen (Stephen Adolph) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 16 Jun 2020 22:11:30 -0400 > From: Stephen Adolph <[email protected]> > To: [email protected] > Subject: [M100] Rexcpm update > Message-ID: > < > camcmnv7xfugfhuq2w+inw9qm77wvuhxzhew+qodgaz2adgz...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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 in 2 weeks or sooner. > Steve > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200616/892a2d16/attachment-0001.html > > > > ------------------------------ > > Message: 2 > Date: Tue, 16 Jun 2020 19:43:57 -0700 > From: David Rogers <[email protected]> > To: [email protected] > Subject: Re: [M100] Rexcpm update > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > ???? > > David, WA7ZYQ > > C?est la vie, c?est la guerre, viva la salade de pommes de terre. > > > On Jun 16, 2020, at 7:11 PM, Stephen Adolph <[email protected]> > 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 in 2 weeks or > sooner. > > Steve > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200616/84e5c9e2/attachment-0001.html > > > > ------------------------------ > > Message: 3 > Date: Tue, 16 Jun 2020 19:52:31 -0700 > From: B 9 <[email protected]> > To: [email protected] > Subject: Re: [M100] Noisy T102 > Message-ID: > < > cag1tpetpsaurqtuc1dsayoqbdhlsrtnkcbrehfvk7pzuxzr...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier <[email protected]> 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 ?structure? to it in relation to > > what the T102 is doing. > > > > 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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200616/64f85f17/attachment-0001.html > > > > ------------------------------ > > Message: 4 > Date: Wed, 17 Jun 2020 09:13:58 +0200 > From: Erik van der Tier <[email protected]> > To: [email protected] > Subject: Re: [M100] Noisy T102 > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > 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 the polarity of the caps, so I don?t think > that?s the problem. > > Erik > > > On 17 Jun 2020, at 04:52, B 9 <[email protected]> wrote: > > > > On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier <[email protected] < > mailto:[email protected] <[email protected]>>> 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 ?structure? to it in relation > to what the T102 is doing. > > > > 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 > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/9dbcc183/attachment-0001.html > > > > ------------------------------ > > Message: 5 > Date: Wed, 17 Jun 2020 09:15:52 +0200 > From: Erik van der Tier <[email protected]> > To: [email protected] > Subject: Re: [M100] Noisy T102 > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > 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 <[email protected]> wrote: > > > > That's interesting! > > Could be that one of the caps you replaced on the +5V line is now > microphonic, or the transformer caps. > > Which ones did you replace? > > It would be interesting to see if you can isolate it. If you had some > alternative caps that you could try for the 3 you have changed, you could > try changing one at a time. > > > > > > On Tue, Jun 16, 2020 at 2:59 AM Erik van der Tier <[email protected] < > mailto:[email protected] <[email protected]>>> wrote: > > Hi All, > > > > I?ve had to replace 3 caps on my trusty T102 as they were leaking (nasty > as they were fairly recent replacements). The surgery seemed to have > worked, except for increase noise. 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 ?structure? to it in relation to what the T102 is doing. > > Is this a sign that the same or other caps are not ok? Does anyone have > experience with this. I really want to get this capacitor business over > with for once and at least a bunch of years (I?m having too much fun with > the t102 to let it just die). > > Any thoughts on how to fix this? > > > > Cheers, > > Erik > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/a2a35b3f/attachment-0001.html > > > > ------------------------------ > > Message: 6 > Date: Wed, 17 Jun 2020 07:54:07 -0400 > From: Stephen Adolph <[email protected]> > To: "[email protected]" <[email protected]> > Subject: Re: [M100] Noisy T102 > Message-ID: > < > camcmnv5qbw3jgivop_6qnypwqfap1+3tpehhbh0okq_n5ss...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Heres a tip. For leaded electrolytic caps I "walk" them out by heating one > lead and leaning the cap to one side such that the loose lead can slide out > a bit. Then I do the same for the other lead, alternating back and forth > until it is fully out. > > On Wednesday, June 17, 2020, Erik van der Tier <[email protected]> wrote: > > > 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 <[email protected]> wrote: > > > > That's interesting! > > Could be that one of the caps you replaced on the +5V line is now > > microphonic, or the transformer caps. > > Which ones did you replace? > > It would be interesting to see if you can isolate it. If you had some > > alternative caps that you could try for the 3 you have changed, you could > > try changing one at a time. > > > > > > On Tue, Jun 16, 2020 at 2:59 AM Erik van der Tier <[email protected]> > wrote: > > > >> Hi All, > >> > >> I?ve had to replace 3 caps on my trusty T102 as they were leaking (nasty > >> as they were fairly recent replacements). The surgery seemed to have > >> worked, except for increase noise. 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 ?structure? to it in relation to what the T102 is doing. > >> Is this a sign that the same or other caps are not ok? Does anyone have > >> experience with this. I really want to get this capacitor business over > >> with for once and at least a bunch of years (I?m having too much fun > with > >> the t102 to let it just die). > >> Any thoughts on how to fix this? > >> > >> Cheers, > >> Erik > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/e8d55117/attachment-0001.html > > > > ------------------------------ > > Message: 7 > Date: Wed, 17 Jun 2020 10:03:53 -0400 > From: "Jim Toth" <[email protected]> > To: <[email protected]> > Subject: Re: [M100] Noisy T102 > Message-ID: <9B4F59F15D46480A8F74D285D7462EB0@OWNER27B149584> > Content-Type: text/plain; charset="utf-8" > > An AM radio near a Model T sounds like that, too. > > > ----- Original Message ----- > From: B 9 > To: [email protected] > 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 <[email protected]> > 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 ?structure? to it in relation > to what the T102 is doing. > > > > 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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/91116399/attachment-0001.html > > > > ------------------------------ > > Message: 8 > Date: Wed, 17 Jun 2020 11:09:40 -0400 > From: "Mike Stein" <[email protected]> > To: <[email protected]> > Subject: Re: [M100] Noisy T102 > Message-ID: <625E81B6452F4D1DAC09F88BCACFEA36@310e2> > Content-Type: text/plain; charset="utf-8" > > Have you tried disconnecting the beeper in case bus noise is leaking > across somehow? > > m > ----- Original Message ----- > From: Erik van der Tier > To: [email protected] > Sent: Wednesday, June 17, 2020 3:13 AM > Subject: Re: [M100] Noisy T102 > > > 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 the polarity of the caps, so I don?t think > that?s the problem. > > > Erik > > > > On 17 Jun 2020, at 04:52, B 9 <[email protected]> wrote: > > > On Mon, Jun 15, 2020 at 11:59 PM Erik van der Tier <[email protected]> > 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 ?structure? to it in relation > to what the T102 is doing. > > > > 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 > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/644dc186/attachment-0001.html > > > > ------------------------------ > > Message: 9 > Date: Wed, 17 Jun 2020 10:26:59 -0500 > From: Bert Put <[email protected]> > To: [email protected] > Subject: Re: [M100] Rexcpm update > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > 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 in 2 weeks or > sooner. > > Steve > > > ------------------------------ > > Message: 10 > Date: Wed, 17 Jun 2020 11:27:54 -0400 > From: "Alex ..." <[email protected]> > To: [email protected] > Subject: Re: [M100] Noisy T102 > Message-ID: > < > cadb9qzm5sovvntfouqakcdjt6iuws+3kpijfyki0n7-5fun...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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... > ? > > On Wed, Jun 17, 2020 at 10:04 AM Jim Toth <[email protected]> wrote: > > > An AM radio near a Model T sounds like that, too. > > > > > > > > ----- Original Message ----- > > *From:* B 9 <[email protected]> > > *To:* [email protected] > > *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 <[email protected]> > 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 ?structure? to it in relation > to > >> what the T102 is doing. > >> > > > > 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 > > > > > > -- > Disclaimer: Any resemblance between the above views and those of my > employer, my terminal, or the view out my window are purely coincidental. > Any resemblance between the above and my own views is non-deterministic. > The question of the existence of views in the absence of anyone to hold > them is left as an exercise for the reader. > The question of the existence of the reader is left as an exercise for the > second god coefficient. (A discussion of non-orthogonal, non-integral > polytheism is beyond the scope of this article.) Thanks /usr/games/fortune > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/e65fa286/attachment-0001.html > > > > ------------------------------ > > Message: 11 > Date: Wed, 17 Jun 2020 17:35:26 +0200 > From: Erik van der Tier <[email protected]> > To: [email protected] > Subject: [M100] Annotated disassemble of T102 rom > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > 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 os-rom for my 102). > > If anyone is interested I can put it up on my GitHub account so you can > get it. I can imagine this could be interesting for the VirtualT emulator > as it provides all the annotations on disassembling the M100 rom but not > the T102 currently (except for the RST opcodes). > > Cheers, > Erik > > ------------------------------ > > Message: 12 > Date: Wed, 17 Jun 2020 12:06:00 -0400 > From: Stephen Adolph <[email protected]> > To: [email protected] > Subject: Re: [M100] Annotated disassemble of T102 rom > Message-ID: > < > camcmnv6btu6x6vox9h33boxbuymebu4frg7_p7dbwxbml97...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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 <[email protected]> wrote: > > > 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 os-rom for my 102). > > > > If anyone is interested I can put it up on my GitHub account so you can > > get it. I can imagine this could be interesting for the VirtualT emulator > > as it provides all the annotations on disassembling the M100 rom but not > > the T102 currently (except for the RST opcodes). > > > > Cheers, > > Erik > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/6e646565/attachment-0001.html > > > > ------------------------------ > > Message: 13 > Date: Wed, 17 Jun 2020 09:10:27 -0700 > From: Ken Pettit <[email protected]> > To: [email protected] > Subject: Re: [M100] Annotated disassemble of T102 rom > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8; format=flowed > > 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 > 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 os-rom for my 102). > > > > If anyone is interested I can put it up on my GitHub account so you can > get it. I can imagine this could be interesting for the VirtualT emulator > as it provides all the annotations on disassembling the M100 rom but not > the T102 currently (except for the RST opcodes). > > > > Cheers, > > Erik > > > > ------------------------------ > > Message: 14 > Date: Wed, 17 Jun 2020 19:21:20 +0200 > From: Erik van der Tier <[email protected]> > To: [email protected] > Subject: Re: [M100] Annotated disassemble of T102 rom > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > 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 > known rom functions. That way the m100 and t102 should be mostly identical > which should help adding the other comments that are available. > > Cheers, > Erik > > > On 17 Jun 2020, at 18:06, Stephen Adolph <[email protected]> wrote: > > > > ? > > 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 <[email protected]> > wrote: > >> 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 os-rom for my 102). > >> > >> If anyone is interested I can put it up on my GitHub account so you can > get it. I can imagine this could be interesting for the VirtualT emulator > as it provides all the annotations on disassembling the M100 rom but not > the T102 currently (except for the RST opcodes). > >> > >> Cheers, > >> Erik > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/09e3442f/attachment-0001.html > > > > ------------------------------ > > Message: 15 > Date: Wed, 17 Jun 2020 19:22:27 +0200 > From: Erik van der Tier <[email protected]> > To: [email protected] > Subject: Re: [M100] Annotated disassemble of T102 rom > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > 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 <[email protected]> wrote: > > > > ?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 > 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 os-rom for my 102). > >> > >> If anyone is interested I can put it up on my GitHub account so you can > get it. I can imagine this could be interesting for the VirtualT emulator > as it provides all the annotations on disassembling the M100 rom but not > the T102 currently (except for the RST opcodes). > >> > >> Cheers, > >> Erik > > > > > ------------------------------ > > Message: 16 > Date: Wed, 17 Jun 2020 10:28:38 -0700 > From: Ken Pettit <[email protected]> > To: [email protected] > Subject: Re: [M100] Annotated disassemble of T102 rom > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8; format=flowed > > Erik, > > I have MANY, MANY more lines commented here: > > > http://www.club100.org/memfiles/index.php?&direction=0&order=&directory=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 to add in! > > > > Cheers, > > Erik > > > >> On 17 Jun 2020, at 18:10, Ken Pettit <[email protected]> wrote: > >> > >> ?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 > 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 os-rom for my 102). > >>> > >>> If anyone is interested I can put it up on my GitHub account so you > can get it. I can imagine this could be interesting for the VirtualT > emulator as it provides all the annotations on disassembling the M100 rom > but not the T102 currently (except for the RST opcodes). > >>> > >>> Cheers, > >>> Erik > > > > ------------------------------ > > Message: 17 > Date: Wed, 17 Jun 2020 20:31:36 +0000 > From: ethan saul <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [M100] Tandy 200 Black Screen > Message-ID: > < > vi1pr0701mb6768e80573a4c2b02837210a8f...@vi1pr0701mb6768.eurprd07.prod.outlook.com > > > > Content-Type: text/plain; charset="windows-1252" > > 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 tried getting it to go into basic and beeping the speaker with > no luck. The machine was working before the battery change however the old > battery was leaking so I had to change it. > There was no corrosion and the battery area was cleaned with Isopropanol. > Also the Power button turns the computer off and then back on straight > after every time I push it and when there is power from either the > battery?s and the ac adapter. > Any Ideas what could be the problem? > > Thanks, > Ethan > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/68382e4e/attachment-0001.html > > > > ------------------------------ > > Message: 18 > Date: Wed, 17 Jun 2020 16:36:00 -0400 > From: Stephen Adolph <[email protected]> > To: [email protected] > Subject: Re: [M100] Tandy 200 Black Screen > Message-ID: > <CAMCMnV7cK2=LMb2O1ccb= > [email protected]> > Content-Type: text/plain; charset="utf-8" > > 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 <[email protected]> wrote: > > > 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 tried getting it to go into basic and beeping the speaker > with > > no luck. The machine was working before the battery change however the > old > > battery was leaking so I had to change it. > > > > There was no corrosion and the battery area was cleaned with Isopropanol. > > > > Also the Power button turns the computer off and then back on straight > > after every time I push it and when there is power from either the > > battery?s and the ac adapter. > > > > Any Ideas what could be the problem? > > > > > > > > Thanks, > > > > Ethan > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200617/d0bbfdd8/attachment-0001.html > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > M100 mailing list > [email protected] > http://lists.bitchin100.com/listinfo.cgi/m100-bitchin100.com > > > ------------------------------ > > End of M100 Digest, Vol 114, Issue 12 > ************************************* > > >
