Wiltron 562 software upgrade

[jfphp]

Hello,

I have a Wiltron 562 scalar analyzer with software rev 3.1 but it doesn't run with the 68XXXB and 69XXXA sources. I have found on the Net the rev 4.1 upgrade but unfortunately it needs 6 x 256K EPROM. My CPU card has only 4 x 512K and, of course, doesn't run with 6 X 256. Any help ? Thank you.