Here you can find how transform
l'MSX2 in MSX2+
by
Bruno Querzoli
The modification is not difficult, but is necessary have experience.
For make the modification:
- remove the VDP9938 and join the new VDP9958
- remove the Eprom of the Basic2 and insert the Eprom of the Basic3
- make a connection with p26 of the VDP and the resistance R1 inserts
you a diode
- make a connection with the p1 and p 27 of the VDP
In the following image , you can see:
- to THE LEFT the white connection with the diode, connected to R1.
- to THE RIGHT the new VDP and the red connection with p1 and
p27, and the white
connection with the diode to the p26 of the VDP.
In the big image to the left, you
can see the connection with the diode connected
to R1 and the new eprom of the Basic3.
In the big image to the right you can see the white connected
connection p26 of the
VDP and the red connection to p1 and p27 of the VDP.
Important.
In the VDP9958, don't join the p26 and p27, these were used for make the
connections as indicated.
Last thing to do

Mother board under, MAKE two connections in the VDP 9958,
p1-> p4 and p21-> p26
The trasformation has completed and the computer could display
19.000 colors and manage new screen and scrool video.
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