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XEGS C101687 chip

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#1 Macross_VF1 OFFLINE  


    Star Raider

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Posted Sat Dec 8, 2018 9:33 AM

A few weeks ago I asked for help with a faulty XEGS. I've managed to get it to power on by replacing the ram and all caps. However now I discover that the C101687 chip gets really damn hot. Anyone know if it's possible to replace or if I'm SOL?

#2 DrVenkman ONLINE  


    River Patroller

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  • Back off, man! I'm a scientist.
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Posted Sat Dec 8, 2018 9:42 AM

A replacement is $12 from Best Electronics:




Pretty much all XEGS boards are soldered though, so you'll have to be handy desoldering ICs to replace the original. If you do so, I'd strongly suggest installing a socket during the process.

#3 Nezgar ONLINE  



  • 1,963 posts
  • Location:Saskatchewan Canada

Posted Sat Dec 8, 2018 9:48 AM

C101687 is the ROM which contains the OS, BASIC, and Missile Command in 1 32KB chip.

Apparently they are a common failure point. A 27c256 EPROM or 28c256 EEPROM are also drop-in replacements for the XEGS if you have the means to program one. Or, someone might be able to program and mail one for you, depending on mail cost compared to BEST where you are in the world.

#4 Macross_VF1 OFFLINE  


    Star Raider

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Posted Sat Dec 8, 2018 10:03 AM

I do not have the means of programming a new rom so I need one that's already full of the good stuff. However soldering I can do, it just takes some patience.

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