[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 monochrome 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