Re: [M100] need a timer IC uPD1990AC

2022-04-30 Thread John R. Hogerhuis
You sure it wasn't the one you took out of your model t? ;-) -- John.

[M100] need a timer IC uPD1990AC

2022-04-30 Thread Stephen Adolph
hey folks, Hope everyone is having a nice spring (in the northern half of the world anyways!). I've been working my way through my stacks of modelTs and as I fix'em I periodically need to get some parts. Planning to sell some of them. I have so many of them. I'm in need of a timer chip, the uPD1

Re: [M100] M100/M102 printing

2022-04-30 Thread Cedric Amand
Hi Brian , I actually share some of your concerns about my choice of a (partially) metallic centronics ; but what made my decision is that the actual original Tandy cable had a metallic centronics connector so I basically made the same. The original was just grey but I went for rainbow because w

Re: [M100] M100/M102 printing

2022-04-30 Thread Brian K. White
Small note about the centronics connector: Metal centronics is not necessarily better in this case. Since this is originally supposed to be a portable computer, the accessories also ideally want to be portable, and there are a few different features that make that a little more or less optimal.

Re: [M100] M100/M102 printing

2022-04-30 Thread Cedric Amand
Thanks, It's indeed related to my DIP switch "SLCT IN" Now I'm able to print, the carriage return is replaced by an uppercase "angstrom" sign but it's a good start By the way, in case anyone is interested, I was forced to order stuff "5 times" for my printer cables, so I'm gonna make 4 more DIP2

Re: [M100] M100/M102 printing

2022-04-30 Thread Joshua O'Keefe
On Apr 30, 2022, at 6:50 AM, Cedric Amand wrote: > > 1) A switch between what they call EPSON and IBM mode (no idea what this does > but looks interesting) > If anyone knows about those two modes, please share :) Epson mode will likely set the printer to use Esc-P control codes, and IBM mode

Re: [M100] M100/M102 printing

2022-04-30 Thread Stephen Adolph
check pin 25; I think if the input from the printer is low you will be unable to print and the laptop will "freeze". [image: image.png] btw Cedric, were you able to snap that PCB pic I was asking about? thanks! Steve On Sat, Apr 30, 2022 at 6:15 AM Cedric Amand wrote: > Hello everyone > > I jus

[M100] M100/M102 printing

2022-04-30 Thread Cedric Amand
Hello everyone I just finished my IDC 26 to centronics cable trying to print from my M102 I'm printing on a 1985 Brother HL1109 so that should be period accurate Nothing happens if I hit "print", the M102 freezes and I have to "reset". I read on some TRS80 related documentation that there are PO