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| From | Daniel <me@sc1f1dan.com> |
|---|---|
| Newsgroups | comp.sys.tandy |
| Subject | Re: expected outcome of a dumb mistake |
| References | <87k00rccyy.fsf@sc1f1dan.com> <d951f43f-7213-444b-8fe1-f11fb7f127e5n@googlegroups.com> |
| Message-ID | <87fsbac9um.fsf@sc1f1dan.com> (permalink) |
| Organization | Newshosting.com - Highest quality at a great price! www.newshosting.com |
| Date | 2023-02-13 07:17 +0000 |
Walt Perko <r4rguy@gmail.com> writes: > On Thursday, February 9, 2023 at 3:09:11 AM UTC-8, Daniel wrote: >> Bought my first 100 in 2020 from eBay - instantly had problems and today >> they still exist but I've recently identified a solution. A second >> 100 came as an inexpensive 'for parts' unit that ultimately worked fine >> - the seller didn't have the memory switch set to 'on' and thought it >> was dead. The thing works like it's fresh out of the factory. Guys, I >> learned that I made a big mistake. Got my 200 from the bitchin100 list >> soon after getting my 100's and made that my daily driver. The 100s >> found a home in the closet next to the board games. >> >> I decided today to register them all with Web8201. I cracked one open >> for the first time. without thinking too much about the insides, >> stupidly, and opened it to get the necessary serial and version numbers >> to provide good registration info. As I was screwing her back together, I >> decided to inspect it for problems. Looked at the battery and, on >> initial inspection, it looked okay. Looking closer I found residue on >> the side of the battery, then residue on a number of via's where the nearby >> resistors are soldered in. CRAP >> >> I should have inspected it two years ago but it just sat on my closet >> and I can't help but think maybe it only leaked after i got the >> device. Again, I turn it on and it works great. I just wish I wasn't so >> stupid as to ignore the inspection two years ago. Or, at least, I wish I >> had at least removed the internal battery when I got it. Just stupidity >> here. BONK So now I have some soldering and cleanup to do. I assume the >> resistors should be replaced. >> >> I went ahead and excised the motherboard from the shell for deep >> inspection. As you can see, there are some leaking caps, residue, and >> some impacted traces. I have some restoration work to do and some >> components to order. This will be the first time I restore the bad traces. >> >> Pictures: >> >> https://imgur.com/zn3fV4G.png >> https://imgur.com/m6yzNzm.png >> https://imgur.com/nWw3JNh.png >> https://imgur.com/yMlMc5L.png >> https://imgur.com/mbyV6xB.png >> https://imgur.com/m1Uc6ez.png >> >> Daniel > > Hi, > > Don't replace any resistors unless they are physically damaged. > Resistors don't go bad unless too much power is sent through them, > then they easily appear damaged. I already got an earful from the bitchin100 list members. The resistors will be removed to make cleaning easier, but I'll be resoldering them in once the board is clean. > Capacitors on the other hand can be a problem, but test the circuit one capacitor at a time with an oscilloscope. I don't have an oscilloscope and if I did, I have no idea how to use one. I suppose I could learn. > Good Luck. Thanks. It'll be fun.
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expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-09 11:09 +0000
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-02-10 02:53 -0800
Re: expected outcome of a dumb mistake Black Epyon <Blackepyon01@yahoo.ca> - 2023-02-10 07:55 -0800
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-02-10 08:09 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-13 07:21 +0000
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-13 07:19 +0000
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-13 07:17 +0000
Re: expected outcome of a dumb mistake Black Epyon <Blackepyon01@yahoo.ca> - 2023-02-13 07:42 -0800
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-02-13 10:38 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-15 09:56 +0000
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-02-15 03:35 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-17 07:30 +0000
Re: expected outcome of a dumb mistake Black Epyon <Blackepyon01@yahoo.ca> - 2023-02-16 01:01 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-17 07:31 +0000
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-02-17 03:56 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-20 10:18 +0000
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-03-01 07:21 +0000
Re: expected outcome of a dumb mistake Walt Perko <r4rguy@gmail.com> - 2023-03-01 15:56 -0800
Re: expected outcome of a dumb mistake Daniel <me@sc1f1dan.com> - 2023-02-17 07:33 +0000
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