Welcome Rocka,
Looking at the Coreboard, the ROMs are in locations.
Two left are in the BASIC Rom positions.
Then Pak ROM 0 is empty as is Pak ROM locations 2,3 & 4.
The next across is the NET Rom or TELCOM location.
Then Pak ROM Location 1 & 5 are both populated.
Depending on what other hardware mods have been done it may not be too difficult to return to a Premium PC85 configuration.
Interesting that it looks like the LV5 mod to bank switch the ROM A (BASIC) between an lower and upper bank is fitted, however the ROM is only an 8KB ROM not a 16KB so no upper bank to switch to.
ERNEST
Looking at the Coreboard, the ROMs are in locations.
Two left are in the BASIC Rom positions.
Then Pak ROM 0 is empty as is Pak ROM locations 2,3 & 4.
The next across is the NET Rom or TELCOM location.
Then Pak ROM Location 1 & 5 are both populated.
Depending on what other hardware mods have been done it may not be too difficult to return to a Premium PC85 configuration.
Interesting that it looks like the LV5 mod to bank switch the ROM A (BASIC) between an lower and upper bank is fitted, however the ROM is only an 8KB ROM not a 16KB so no upper bank to switch to.
ERNEST