Centronics-128 MHT

SCHEME

Scheme

BOARD

board

C.I.7

 Those chip have their numbers deleted and I don't know what chips they are.

 09/2010. JZX (user of speccy.org ) discover that CI7 chips are CD4047.

 I put two photos with in and out of the two CI 7 when the spectrum is running this program:

10 LPRINT "hola"
20 GOTO 10