I don’t think anyone has reproduced the M200 zebra strips. They are different for every machine.
Jeff Birt From: M100 <[email protected]> On Behalf Of B 9 Sent: Tuesday, September 13, 2022 7:44 PM To: [email protected] Subject: [M100] Zebra Strips for Tandy 200? Hey Birt and everyone, I am looking into repairing the LCD screen on a Tandy 200 that appears to have white spots between the layers. I am wondering where I can find zebra strips, like the ones for the Model 100 available on Soigeneris <https://www.soigeneris.com/trs-80-model-100-lcd-zebra-strips> . Any hints would be appreciated! —b9 On Thu, Apr 7, 2022 at 7:31 AM <[email protected] <mailto:[email protected]> > wrote: Hi all, A year or so ago someone announced that they were looking at getting new Zebra strips made for the M100. A few months ago, I came across an NEC PC-8201 LCD module I was pretty sure would be fixed with new strips as I could see a defect in one of them. When I tried to contact the individual who was working on getting strips made, I got no response. Another M100 friend also tried and got no response. I hope that with all the issues with the world in the last few years he is OK. Last fall I started working on a memory upgrade for the Casio VX-4 pocket computer (which fits several Casio models) and found myself in need of getting some zebra strips made. Luckily, I was able to get in touch with a company who makes zebra strips to order and had some made for the Casio PCB. When I needed to place another order with them earlier this year and I had not heard back from the chap who had been working on new M100 strips I took the chance on getting a small number of M100 zebra strips made. I was able to fix the PC-8201 LCD with the new strips and a friend was able to combine parts of a few bad LCD modules with the new zebra strips and make one good functioning unit. So, the new strips worked fine, and I ordered 100 sets to start with. We’ll see how far this lot goes and I’ll order more in if needed. I have them up on my website at the link below. There are a few tricks for a successful LCD module surgery. While the LCD glass is symmetric, i.e. you can rotate it 180 degrees and it will still work, the polarizing film is not. You must keep the glass in the same orientation in the frame. The LCD glass is also NOT centered in the frame. If the PCB is facing you and the ribbon cable is to your right the LCD glass will be in the lower right corner of the frame. I’ll do a video soon showing how to install them. I have a T102 LCD I need to dig out which I thought had a bad row in the glass. I had rotated the glass 180 and the row moved so I was sure it was the glass, but it recently occurred to me that if I kept the zebra strips on the same edge of the glass and there was a bad spot in one strip it would cause the missing row to move too. We’ll see if new strips fix it. Link: https://www.soigeneris.com/trs-80-model-100-lcd-zebra-strips Jeff Birt (Hey Birt!)
