PCLKB2 (Extended Video Board II) (EPSON)

L slot graphic equipped with WD90C24 (VRAM 1MB) manufactured by Western Digital
Accelerator board.PC-48 NAS / NAU / NAV compatible.When using on Windows
Set the 16 MB system space of the main unit to "Use".

There are 4 pairs of 2 jumper switches on the board.When displaying on an external display
Short J2 and J3.When displaying on PCLCDC21 (color liquid crystal of the main body), J2 and J4
short.

For the two switches near the connector (the default setting seems to be both OFF)
not listed.