Technical questions for the MPC2000xl and the MPC2000
By Myrical Lyfe Fri Apr 04, 2014 5:30 pm
Is the 150$ replacement screen the only option? Trying to repair a 2000 on a budget and not really looking to spend 150$.

Reason being is that I bought this not working. Fixed the floppy so it would boot, but you can't even read the screen. Not trying to buy a screen, when there could be way more to fix once that is.
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By peterpiper Fri Apr 04, 2014 11:44 pm
If the screen is in a "nothing to loose" state, I would take it out of the MPC and try to fix it. I know there is not really a fix for it but I would try to press on the contacts and thinking about glueing them or heat plus pressing or something like that. But to do this and not ruin it in the first 5 seconds you'll need experience in hadling with electronic parts. If you have this experience you might still ruin it but it'll take 10 or 15 minutes :). There is no fix but like I said : If there is nothing to loose (complete unreadable display).......


peace
By Ron-Jay Sat Apr 05, 2014 6:47 am
i think if you take a closer look you'll find that the $150 LCD replacement screen is not in stock. It's the $250 LCD replacement screen that you're looking for.
By Myrical Lyfe Sat Apr 05, 2014 1:04 pm
Ron-Jay wrote:i think if you take a closer look you'll find that the $150 LCD replacement screen is not in stock. It's the $250 LCD replacement screen that you're looking for.



Yeah thats what I meant. Well guess its off to my electronic wiz friend, to see if he can perform a miracle on this thing. if not, back on ebay.
By Myrical Lyfe Sat Apr 05, 2014 1:44 pm
Is it possible that the screen is not showing anything because of a OS load issue? The floppy drive clicks when you turn it on. I assume this is because its trying to load a OS from the floppy. (I DONT HAVE A FLOPPY)
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By SimonInAustralia Sat Apr 05, 2014 6:09 pm
Looks like the common missing lines problem with these LCDs.

There is a flex cable connected to the LCD glass, from the PCB, possibly using some sort of anisotropic conductive adhesive. This seems to lose the connection with the LCD glass over time.

It is possible that it could be reattached with a combination of heat and pressure, but I don't think anyone has come up with a documented/proven method to do so, as in how much heat/pressure/time is required, and how to clamp it for pressure while heating it.


I found this info previously, in relation to how they commonly initially bond flex cable to glass with anisotropic conductive film in other non-MPC applications, no idea if this would be a good starting point in trying to repair a faulty MPC LCD glass to flex cable connection, or not, and whether this is similar adhesive to what is used in the MPC, or not...

SimonInAustralia wrote:http://en.wikipedia.org/wiki/Anisotropic_conductive_film

The table in the wiki shows common assembly methods for ACF...
Code: Select allAssembly Type           Adhesive Type   Time(Sec)   Temp (°C)   Pressure
Flex-on-Glass (FOG)     Epoxy           10–12       170–200     2-4MPa


If I ever have problems with my MPC LCDs, or find any faulty MPC LCDs to try it out on, I will give it a go.
By Ron-Jay Sat Apr 05, 2014 11:56 pm
you definitely need a disk with an OS on it to do anything. However, it also looks like you will need a new screen to do anything. If you were familiar with the OS already you might have been able to get by for a bit while ordering a new screen.