Re: [M100] Howdy! New to list, need some parts…
Hey Earl, Welcome to the list. Deoxit on the pot. Amazon has it in a "precision" dropper here: https://www.amazon.com/dp/BYH6F8/ref=cm_sw_r_cp_apa_glt_fabc_HYHBJZ4YAQW7PX7RC30P Greg @ arcadeshopper.com has most parts you'll need. Including complete re-cap kits. Just picked up a couple kits with a replacement TPDD2 belt myself. God Bless, GregS <>< Jul 16, 2021 5:03:08 PM Earl Baugh : > Howdy! > > I’m new to the list and recently picked up a model 100 that needed some > restoration. A friend helped me get the bad caps replaced, cleaned the power > plug and we diagnosed a bad member switch and bad pot for the lcd contrast > adjustment. It’s working again (hurrah), with a solder bridge on the switch > and some resistors temporarily in place of the pot. ( we also removed the > battery before any leakage or damage ) > > Is there anyplace where I can get replacement parts for the pot and switch > without digging thru a Mouser or Digikey catalog? ( or the part numbers at > least to save a number of mis orders? ) > > Earl > > > Sent from my iPhone
Re: [M100] Howdy! New to list, need some parts…
Same thing for the memory switch. Just hit it with deoxit at work it several times. It should be perfect in a few seconds (No potential 2 weeks drying time because it's not a tightly closed enclosure, plus it's a crude power circuit not a super sensitive signal like the contrast pot. It works fine even while still drenched). Never heard of the switch actually being bad other than just dirty or oxidized. If you removed the memory battery but didn't put a new one back in it's place, get a new one and install it. Google/ebay "3/v80h 2p" or go to arcadeshopper.com bkw On Sat, Jul 17, 2021, 12:13 AM Brian White wrote: > Usually DeoxIt clears up the contrast pot. Just spray it, don't worry > about overspray, operate it a few times, wait an hour, operate a few more > times, then possibly wait some more for the interior to dry. Can possibly > take as long as a couple weeks if it was really drenched. > > The entire screen may go faint while it's wet but it comes back as it > dries, don't worry if you see that. > > Also check for bad solder joints since the pot is subject to mechanical > force from outside. Always possible it took a hit somewhere along the way > in 35 years. > > bkw > > On Fri, Jul 16, 2021, 10:28 PM Earl Baugh wrote: > >> Howdy! >> >> I’m new to the list and recently picked up a model 100 that needed some >> restoration. A friend helped me get the bad caps replaced, cleaned the >> power plug and we diagnosed a bad member switch and bad pot for the lcd >> contrast adjustment. It’s working again (hurrah), with a solder bridge on >> the switch and some resistors temporarily in place of the pot. ( we also >> removed the battery before any leakage or damage ) >> >> Is there anyplace where I can get replacement parts for the pot and >> switch without digging thru a Mouser or Digikey catalog? ( or the part >> numbers at least to save a number of mis orders? ) >> >> Earl >> >> >> Sent from my iPhone > >
Re: [M100] Howdy! New to list, need some parts…
Usually DeoxIt clears up the contrast pot. Just spray it, don't worry about overspray, operate it a few times, wait an hour, operate a few more times, then possibly wait some more for the interior to dry. Can possibly take as long as a couple weeks if it was really drenched. The entire screen may go faint while it's wet but it comes back as it dries, don't worry if you see that. Also check for bad solder joints since the pot is subject to mechanical force from outside. Always possible it took a hit somewhere along the way in 35 years. bkw On Fri, Jul 16, 2021, 10:28 PM Earl Baugh wrote: > Howdy! > > I’m new to the list and recently picked up a model 100 that needed some > restoration. A friend helped me get the bad caps replaced, cleaned the > power plug and we diagnosed a bad member switch and bad pot for the lcd > contrast adjustment. It’s working again (hurrah), with a solder bridge on > the switch and some resistors temporarily in place of the pot. ( we also > removed the battery before any leakage or damage ) > > Is there anyplace where I can get replacement parts for the pot and switch > without digging thru a Mouser or Digikey catalog? ( or the part numbers at > least to save a number of mis orders? ) > > Earl > > > Sent from my iPhone
[M100] Howdy! New to list, need some parts…
Howdy! I’m new to the list and recently picked up a model 100 that needed some restoration. A friend helped me get the bad caps replaced, cleaned the power plug and we diagnosed a bad member switch and bad pot for the lcd contrast adjustment. It’s working again (hurrah), with a solder bridge on the switch and some resistors temporarily in place of the pot. ( we also removed the battery before any leakage or damage ) Is there anyplace where I can get replacement parts for the pot and switch without digging thru a Mouser or Digikey catalog? ( or the part numbers at least to save a number of mis orders? ) Earl Sent from my iPhone
Re: [M100] Sneak peak and small first offering of the new 'Backpack Drive'
Thanks for that detail Jeff -- I was going to ask :D --Brad On Fri, Jul 16, 2021 at 1:16 PM Jeffrey Birt wrote: > If anyone is curious about the PLA used it is from PrintedSolid.com, > Jessie PLA 1.75mm X Beige 500. I like to call it ‘old computer beige’. > > > > Jeff Birt (Hey Birt!) > > > > *From:* M100 *On Behalf Of *Kevin > Becker > *Sent:* Friday, July 16, 2021 10:05 AM > *To:* m...@bitchin100.com > *Subject:* Re: [M100] Sneak peak and small first offering of the new > 'Backpack Drive' > > > > It's really cool, I like it a lot. The PLA you used for the case is a > really close match to my T102, which is cool too. > > > -- -- Brad Grier
Re: [M100] Sneak peak and small first offering of the new 'Backpack Drive'
If anyone is curious about the PLA used it is from PrintedSolid.com, Jessie PLA 1.75mm X Beige 500. I like to call it ‘old computer beige’. Jeff Birt (Hey Birt!) From: M100 On Behalf Of Kevin Becker Sent: Friday, July 16, 2021 10:05 AM To: m...@bitchin100.com Subject: Re: [M100] Sneak peak and small first offering of the new 'Backpack Drive' It's really cool, I like it a lot. The PLA you used for the case is a really close match to my T102, which is cool too.
Re: [M100] Sneak peak and small first offering of the new 'Backpack Drive'
It's really cool, I like it a lot. The PLA you used for the case is a really close match to my T102, which is cool too. On Thu, 2021-07-15 at 17:33 -0500, Jeffrey Birt wrote: > Hi, > > The bootstrapping works nice, albeit a bit slow. The Initial Program > Loader figures out what computer you are using a sends a numerical > code to the Backpack. It uses the number as an index into the boot > sector table to know which bootstrap program to use. You can change > these settings in the CLI so you can load TS-DOS for the M100, or > Teeny, etc. The developer just came up with a smaller bootstrap that > will load in the .CO version of TS-DOS directly which should work > better for machines with less RAM. We’ll test it out a bit more and > then add it to GitHub. > > Jeff > > From: M100 On Behalf Of Kevin > Becker > Sent: Thursday, July 15, 2021 4:23 PM > To: m...@bitchin100.com > Subject: Re: [M100] Sneak peak and small first offering of the new > 'Backpack Drive' > > I got a chance to play with my Backpack Drive today for a little bit. > So far I'm really happy with it. It's seems to work great and be > pretty easy to use. I was only testing on a device with a REX, so I > already have TS-DOS but I'm really thinking with the built-in > bootstrapping, it will be nice for one of my other systems with no > REX. I haven't tested that yet though. > > > > On Sun, 2021-07-04 at 07:44 -0500, Jeffrey Birt wrote: > > Hi all, > > > > A friend and fellow list member has developed a SD card storage > > solution for the M100, T102, WP-2 NECs, etc. He sent me one a few > > months ago and I loved it so much I encouraged him to offer them up > > for sale. It is a small device, about 25mmx40mmx75mm with the case > > on. It runs from a single AA battery with a 1025 coin cell to run > > the RTC (the RTC allows for time/date stamping file). It works like > > a TPPD2 but ignores calls to change partitions. All TS-DOS commands > > are supported including directory navigation. It also has an > > extensive CLI interface which makes it easy to do things like set > > the time/date, update firmware, etc. > > > > Hi Everyone. We have a small number of the mini TPDD 'Backpack' > > drives ready for a new home. The documentation has been poured over > > by four of us, but I am sure there are still a few rough edges. > > Much thanks go out to @48kRAM and @Fezzler for helping to improve > > the documentation and being beta testers. There is a Git Hub page > > up now: https://github.com/Jeff-Birt/Backpack which has lots of > > images too. > > > > I have offered to handle distribution as I am already set up to do > > so. > > > > This first small batch is completely assembled, and it comes with a > > 3D printed enclosure. You will need an AA battery and a smallish SD > > card, i.e. 4GB, 8GB, etc. There are images of the enclosure colors > > at the link above. The main colors are white, grey, and ‘old > > computer beige’ I did print a case in black and one in a > > pearlescent color that is kind of interesting. The price is $60. > > > > If you want to use it with a WP2 you need a DB25F<->DB9F adapter, > > The developer of the 'Backpack' found a small number of NOS Belkin > > adapters on eBay and is selling them at his cost, $5 in case > > someone needs one. He also laid up a small PCB so folks can build > > their own if they want. The links to the PCB files will be > > available shortly. > > > > Shipping in the USA is $5.50 for one unit, about $7.00 with the > > adapter by first class mail. By Priority Mail it will be $9 for a > > Small Flat Rate box. For international orders I’ll need to your > > address to get shipping rates. To make thing easier email me > > directly with your email address, shipping address, color of case > > and if you want an adapter for the WP2. I'll send out a PayPal > > invoice. > > > > Keep in mind we have a small number in this first batch let’s give > > everyone a chance to get one. A second small batch of hand > > assembled boards will be available in the near future. > > > > Jeff Birt (Hey Birt!) > >
Re: [M100] RESEQ.100
Interesting - the discussion is all about how to port it, but they don't discuss the flaws! On Fri, Jul 16, 2021 at 7:45 AM Stephen Adolph wrote: > Thanks Brian. I'll take a look but when I was reminded that rom2 has this > function and it seems to work flawlessly, it took the wind out of my sails > a bit. > > I also was looking at the Microsoft version of this command via the nec > rom. > > ..Steve > > > On Friday, July 16, 2021, Brian K. White wrote: > >> Steve, you said you started to reverse-engineer RESEQ.100, I just noticed >> there is assembly source and some discussion between the author James Yi >> and Phil Wheeler about it in M100SIG >> >> 100 version >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.100 >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.ASM >> >> >> 200 version >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.200 >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.SRC >> >> >> Discussion >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FYI-RD1.THD >> >> >> >> The assembler for Yi's original RESEQ.200 appears to be this? Maybe? It >> has his name in it. (There is also an ADSM.100 in Lib-08 but RESEQ.100 >> doesn't appear to use it.) >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.DOC >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.200 >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR1 >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR2 >> >> >> Lib-08 ASSMBL.CAT says that the hex files are installed with HXFER >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.DOC >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.100 >> >> >> https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FHXFER.200 >> >> >> RESEQ.100 says it's in Custom Software assembler format. I don't know >> what that is, but I did see there is a util to convert from Custom Software >> format to Polar Engineering format. Don't know what that is either. >> " >> ASMCNV.BA [71706,334] 20-Dec-85 1630 >> Source file convertor for assembly files, converts from form used by >> Custom Software to form used by Polar Engineering on model 100 and >> 200. >> Changes HL,DE,BC,AF register notation to H,D,B,PSW notation and >> converts >> DM macro to DB with a character string. >> " >> >> I don't expect you need to actually use the original assembler that the >> source was written for, especially since it would mean working ON the 100. >> I'm just putting everything related together for completeness and >> reference. Mostly I just thought the original source and the discussion >> might be useful. >> >> -- >> bkw >> >
Re: [M100] RESEQ.100
Thanks Brian. I'll take a look but when I was reminded that rom2 has this function and it seems to work flawlessly, it took the wind out of my sails a bit. I also was looking at the Microsoft version of this command via the nec rom. ..Steve On Friday, July 16, 2021, Brian K. White wrote: > Steve, you said you started to reverse-engineer RESEQ.100, I just noticed > there is assembly source and some discussion between the author James Yi > and Phil Wheeler about it in M100SIG > > 100 version > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.100 > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.ASM > > > 200 version > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.200 > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.SRC > > > Discussion > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FYI-RD1.THD > > > > The assembler for Yi's original RESEQ.200 appears to be this? Maybe? It > has his name in it. (There is also an ADSM.100 in Lib-08 but RESEQ.100 > doesn't appear to use it.) > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.DOC > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.200 > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR1 > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR2 > > > Lib-08 ASSMBL.CAT says that the hex files are installed with HXFER > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.DOC > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.100 > > > https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FHXFER.200 > > > RESEQ.100 says it's in Custom Software assembler format. I don't know what > that is, but I did see there is a util to convert from Custom Software > format to Polar Engineering format. Don't know what that is either. > " > ASMCNV.BA [71706,334] 20-Dec-85 1630 > Source file convertor for assembly files, converts from form used by > Custom Software to form used by Polar Engineering on model 100 and 200. > Changes HL,DE,BC,AF register notation to H,D,B,PSW notation and > converts > DM macro to DB with a character string. > " > > I don't expect you need to actually use the original assembler that the > source was written for, especially since it would mean working ON the 100. > I'm just putting everything related together for completeness and > reference. Mostly I just thought the original source and the discussion > might be useful. > > -- > bkw >
Re: [M100] New zebra strips for M100
I measured at the four corners of the metal frame, where the LCD glass / Zebra Strip / PCB connection can be seen and accessed, with a dial caliper. The measurements varied between 3.02 to 3.09mm at these points. The mid points of the length of the Zebra Strip could not be accessed, but should be similar in range to the corner measurements as the glass is flat. One must also consider the effects of uneven thermal expansion of the display assembly, to ensure that there is enough pressure exerted by the Zebra Strip to the PCB and LCD glass. I would also think that an "assembly jig" would need to be created, to keep the PCB and metal frame aligned during the twisting of the metal frame tabs. On smaller displays I had worked on, we had such a jig that allowed viewing the LCD powered on, while setting the tabs, so as to ensure the Zebra Strip was making good connection along its entire length and there were no "dead areas" on the display. It was more helpful this way as opposed to setting the tabs, then testing the assembly and adjusting for any bad spots on the display. The tabs usually didn't take to being bent more than two or three times. Regards, Peter > -- > > Message: 5 > Date: Thu, 15 Jul 2021 20:57:25 -0400 > From: Jamie Nichol > To: Model 100 Discussion , > m...@bitchin100.com > Subject: Re: [M100] New zebra strips for M100 > Message-ID: > Content-Type: text/plain; charset="utf-8" > > Peter, > > Thanks for taking the time to take a measurement of your display.??You are > right.??The clamping tabs don?t allow a great deal of adjustment (or > clamping force ? more on this). > > > Out of curiosity, how did you take your measurement???Is anyone else > wiling to take the same measurement? > > ?Jamie > On Jul 15, 2021, 8:00 PM -0400, Peter Noeth , wrote: > > Since we don't know the uncompressed height of an OEM strip, we may have > to rely on the vendor's recommendation based on compressed height and their > materials / process. The clamping tabs on the metal frame do not allow for > a great deal of compression distance, so the tolerance of the strips may > have to?be rather tight. > > > > On a M100, with a working LCD, that I have apart right now, I measure > the compressed height of 3.02 to 3.09mm at the accessible corners of the > glass. You should relay this measurement to your vendor to get their > recommendation for uncompressed height. > > > > Regards, > > > > Peter > > > >
Re: [M100] RESEQ.100
Steve, you said you started to reverse-engineer RESEQ.100, I just noticed there is assembly source and some discussion between the author James Yi and Phil Wheeler about it in M100SIG 100 version https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.100 https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FRESEQ.ASM 200 version https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.200 https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FRESEQ.SRC Discussion https://archive.org/download/M100SIG/M100SIG.zip/Lib-08-TECH-PROGRAMMING%2FYI-RD1.THD The assembler for Yi's original RESEQ.200 appears to be this? Maybe? It has his name in it. (There is also an ADSM.100 in Lib-08 but RESEQ.100 doesn't appear to use it.) https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.DOC https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.200 https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR1 https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FADSM.SR2 Lib-08 ASSMBL.CAT says that the hex files are installed with HXFER https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.DOC https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FHXFER.100 https://archive.org/download/M100SIG/M100SIG.zip/Lib-10-TANDY200%2FHXFER.200 RESEQ.100 says it's in Custom Software assembler format. I don't know what that is, but I did see there is a util to convert from Custom Software format to Polar Engineering format. Don't know what that is either. " ASMCNV.BA [71706,334] 20-Dec-85 1630 Source file convertor for assembly files, converts from form used by Custom Software to form used by Polar Engineering on model 100 and 200. Changes HL,DE,BC,AF register notation to H,D,B,PSW notation and converts DM macro to DB with a character string. " I don't expect you need to actually use the original assembler that the source was written for, especially since it would mean working ON the 100. I'm just putting everything related together for completeness and reference. Mostly I just thought the original source and the discussion might be useful. -- bkw
