There are two polarizers, one on the front, which is transparent, and one on 
the back with a reflective layer on back. They are installed 90 degrees from 
each other, i.e. one rotated 90 degrees w.r.t. second one. Both are required.

It can be a guess at times to know which orientation a particular polarizer is 
in. I like to order a sheet large enough to cover the screen in either 
orientation so as to not be caught out by the sheet being too small in the 
correct rotation.

 

Jeff Birt

 

From: M100 <[email protected]> On Behalf Of Fisher
Sent: Thursday, October 12, 2023 7:07 AM
To: [email protected]
Subject: [M100] Model 200 Screen ...Protector??

 

Recently acquired Model 200 (my first one!)

 

No life on the screen as yet, not one pixel’s worth. Keyboard is good (at least 
I can get a BASIC program to beep on every keypress, and so I surmise that the 
main board is mostly functional.)

 

The screen however is unhealthy-looking. The rear polarizer reflector Looks to 
be shot (dark shadows in photo), and so I’ve ordered replacement film. But the 
front of the display has what looks like a vinyl “screen protector” which is 
bubbled up from the glass (bright streaks in the photo) all around the metal 
bezel. I’m curious as to its function? Anti-glare? I haven’t seen it on any of 
the smaller ModelT screens.

 

Waiting on a backup battery, and capacitors before I go back at it, and I’m 
wondering what use my multimeter might be in searching for data (or even just 
power) going to the display board. Not sure where to probe.

 

Cheers

Sean

 

 



 

 

 

 

By the way, anyone seen this? I got the NEC game to load, but no luck yet with 
the M100 version.

http://inufuto.web.fc2.com/8bit/guntus/

 

 

 

 

 

 

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