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[C] OPTIONAL FUNCTION
RGB-IIB provides a terminal for the installation of screen mode changeable switch. When
the APPLE-IIPLUS computer is connected to RGBvision monitor by using RGB-IIB
interface card, sometimes a phenomenon. may occur in which characters are difficult to
read in “HGR” mode. This phenomenon occurs due to a limitation of a dot matrix in
“HGR” mode as shown at page 19 20 of APPLE-IIPLUS reference manual. This
optional function has been developed to solve this problem. If you connect “ON-OFF"
push-switch being on the market to this terminal which is the three pin socket by using
attached 3P plug and change over this switch, the color graphic and characters displayed
on the screen change into two-color display, thereby vividly displaying the characters. If
you further change over “ROTARY-SW” in this state, 8 color combinations for the
screen and characters can be obtained, so that you can use the RGBvision as a mono-
chrome monitor with colors you desire.
KAGA ELECTRONICS CO., LTD.
3-14-2 YUSHIMA BUNKYO-KU, TOKYO 113,JAPAN
TEL: 03-836-5521
TSK ELECTRONICS CORPORATION.
18005 CORTNEY COURT, CITY OF INDUSTRY, CA,
91745, USA
TEL:213-810-1291
PRINTED IN JAPAN