Reply 49260 of 49457, by chrismeyer6
nach wrote on 2023-05-25, 09:45:
Good news! I got today a coin cell battery case. I desoldered the old battery and put the new one and voila! It worked! Thank yo […]nach wrote on 2023-05-22, 07:19:
I got today a NOS Mitsubishi Amity SP, a super-ultra-mega rare 486 DX4 @75Mhz tablet pc that was opened only to take pictures of […]
I got today a NOS Mitsubishi Amity SP, a super-ultra-mega rare 486 DX4 @75Mhz tablet pc that was opened only to take pictures of it but there is no manual.
I tried to boot it up docked at its docking station (and not docked too) and it boots but it stops in the post screen and the screen blinks showing what you can see in the captures i uploaded.
I have seen other more modern models of Mitsubishi amity (amities?) and below the “detected xxx processor at xxxMhz it uses to show the available ram and other more info. I tried removing the installed ram and booting but i get black screen and unfortunately do not have other memory modules that fit so cannot check.
Although the hard disk doesn’t even start to spin i have tired it on a different pc and it works so it is not the hard disk (btw it is a pcmcia hard disk! i thought it was going to be a normal 2.5" ide one).
I also read somewhere that Mitsubishi computers of that era don’t even start if the cmos battery is dead, so it might not be? Anyway it is soldered on the motherboard. (No leaking condensers inside, everything is super clean) not sure if it is worth the effort to unsolder and so on.
Does anybody know what could be the fault? Could be that it is rebooting in an endless loop?
I get no beeps in the post neither, only 4 low volume short beeps when i try to start up with a pcmcia to sd card instead of the hard disk. The BIOS it seems is phoenix if it helps (i cannot even enter the bios, the system halts before being able to)
The keyboard flashed the 3 lights when pushing the power button on the computer so the bios is starting doing its things
Good news! I got today a coin cell battery case. I desoldered the old battery and put the new one and voila! It worked! Thank you very much for the tips about the battery.
The tablet works like a charm. The bummer is that as you can see in the pictures the screen seems half dead as there is a huge zone in the middle where the colors are inverted. I guess this is due to the age and cannot be repaired, right? (i cranked up the bright just to be able to take a proper system properties pic
The problem is that although the tablet has a "VGA out" connector, it is not an standard one. I attach a picture where you can see it.Is it a proprietary connection or perhaps this connection does exist? It is very similar to the vaio PCG-C1 one but the pins are in the middle of the connector, not in the outside. I would like to be able to hook it to a monitor as i would love to use the tablet at least as a minipc.
Excellent news! I'm glad to hear all you needed was a new bios battery. I've had them cause me a whole lot of grief in the past. I've actually gone back through my box of dead motherboards and dearest with fresh batteries and had found about 15-20 boards that worked just fine with the new battery.