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4.3.3
VIDEO MEMORY
Video memory expansion is performed only for B/W display.
When the video memory is added, the "CPU + I/O-COUNT" P.C.B. and the
JP circuit of the , , CPT-CONT2-B/W, f P.C.B are required to be switched.
(1) Remove the rear and upper covers.
(2) Remove CRT-CONT2-B/W P.C.B. from MAIN UNIT by
(5)
Expansion area of option video memory is provided with socket for
16 additional video memory chips (32KB).
Note: Pay attention direction of each video memory chip prior to
expansion.
(Refer to 3.1 in Chapter 3.)
Option video memory area 32KB
with socket (G picture)
Fig. 4.3.11
. .
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