Eramco MLDL schematics?

[MeindertKuipers]

Hi all,
I have an original Eramco MLDL with 2* 4K SRAM and 6 EPROM banks. This is the 3 PCB version. I am trying to get it back in shape again as it behaves a bit erratic.
Does anyone have the schematics available? A long long time ago I started to reverse engineer it and have the EPROM board schematics sorted out, but I do not have schematics of the SRAM board and main controller PCB.
Although these boards are not very complex, schematics would help to find out what exactly needs to be fixed.
Some of the EPROMs work, some unreliable, and the SRAM does not work at all. I intend to replace all cabling and possible faulty components, and then probably offer the restored unit for sale.