TAXAN APPLE-IIPLUS RGB INTERFACE CARD RGB-IIB PATENT P KAGA ELECTRONICS CO., LTD.
INSTRUCTION MANUAL –RGB- I l B INTERFACE CARD– RGB-IIB is an exclusive-use interface card for connecting the RGBvision monitor to an APPLEIIPLUS computer. Through the use of the RGB-IIB, it is possible to display the 16 full colors of the APPLE IIPLUS computer, on the RGBvision monitor (RGB separated signal input monitor).
FIG. 2 VIDEO PIN (SEE FIG. 4) SLOT 7 (SEE FIG. 3) 7.8 JUMPER SOLDERED APPLE-II MOTHER BOARD FIG. 3 THE PCB TYPE CONNECTOR SLOT 7 4 Locate the video output connector on the rear of the computer cabinet. Directly i n front of this connector is a short row of electrical components, and then a row of four vertical pins which are located nearest to the video jack. Connect the video cord from the RGB-IIB module to the second pin from the right end of this row, as shown in Fig. 4.
FIG. 4 VIDEO CORD 4P PLUG CONNECT THE VIDEO CORD TO THE VIDEO PIN 5 6 7 8 9 10 11 Plug the end of the connecting cable with the six pin plug into the mating six pin socket on the RGB-IIB module. Route the connecting through a convenient opening in the rear of the computer cabinet close to the module, and plug the eight pin end of the cable into the mating connector on the RGBvision monitor. ‘ Set the monitor mode selector-switch to the “II” position.
[B] USING METHOD OF ROTARY-SWITCH Through the change over operation of the ROTARY-SW, you can specify colors you want for the screen and characters in the “TEXT” mode which appear first when you turn on the power supply switch of APPLE-IIPLUS computer. Colors can be set by changing over the position of the ROTARY-SW, and the color correspondence table is given below. At normal time, the ROTARY-SW is set to CODE (NO. 0). COLOR CORRESPONDENCE TABLE CODE NO.
[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.
