Re: Tandon TM-100-1 electronics repair

2017-04-28 Thread Ethan Dicks via cctalk
On Fri, Apr 28, 2017 at 1:18 PM, Chuck Guzis via cctalk wrote: > On 04/28/2017 10:01 AM, Ethan Dicks via cctalk wrote: > >> So that's where I'm at - the drive was working before the power was >> jiggled and now it's not and it doesn't appear to be the >> electronics. > >

Re: Tandon TM-100-1 electronics repair

2017-04-28 Thread Ethan Dicks via cctalk
On Thu, Apr 27, 2017 at 11:17 PM, Mike Loewen via cctalk wrote: > On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: > >> Additionally, for a testing framework to poke signals through the >> drive for debugging during the repair... > >You should check out a couple of

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Warner Losh via cctalk
On Thu, Apr 27, 2017 at 11:49 PM, Chuck Guzis via cctalk wrote: >> On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: >> >>> Additionally, for a testing framework to poke signals through the >>> drive for debugging during the repair, what's a good platform? A >>> PC

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Chuck Guzis via cctalk
> On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: > >> Additionally, for a testing framework to poke signals through the >> drive for debugging during the repair, what's a good platform? A >> PC running MS-DOS? The TRS-80 Model 4 itself? Besides doing >> directories, are there any good

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Mike Loewen via cctalk
On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: Additionally, for a testing framework to poke signals through the drive for debugging during the repair, what's a good platform? A PC running MS-DOS? The TRS-80 Model 4 itself? Besides doing directories, are there any good bits of software

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Ethan Dicks via cctalk
On Thu, Apr 27, 2017 at 4:43 PM, Fred Cisin via cctalk wrote: > On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: >> >> It's not impossible to find another TM-100-1 or replace it with a >> TM-100-2 > > Actually, the IBM 5150 PC originally (August 1981) mostly came with

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Ethan Dicks via cctalk
On Thu, Apr 27, 2017 at 1:58 PM, Tony Duell wrote: > On Thu, Apr 27, 2017 at 6:42 PM, Ethan Dicks via cctalk >> (diagnosing and repairing a) TM-100-1 floppy drive... > Floppy drives of that vintage consist of a number of almost independant > systems (there's a common

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Fred Cisin via cctalk
On Thu, 27 Apr 2017, Ethan Dicks via cctalk wrote: It's not impossible to find another TM-100-1 or replace it with a TM-100-2 (more common, owing to its appearance in the IBM 5150 PC), but I'd like to just repair this one and get back to TRS-80 hacking. Actually, the IBM 5150 PC originally

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Chuck Guzis via cctalk
On 04/27/2017 10:42 AM, Ethan Dicks via cctalk wrote: > It's not impossible to find another TM-100-1 or replace it with a > TM-100-2 (more common, owing to its appearance in the IBM 5150 PC), > but I'd like to just repair this one and get back to TRS-80 hacking. The issue with Jugi's artistry

Re: Tandon TM-100-1 electronics repair

2017-04-27 Thread Tony Duell via cctalk
On Thu, Apr 27, 2017 at 6:42 PM, Ethan Dicks via cctalk wrote: > Hi, All, > > I'm cleaning/refurbing a TRS-80 Model 4 I picked up at VCFe that was > in dirty-but-mostly-working shape. I've completely dismantled, > cleaned and reassembled the keyboard, I fixed the bad cable