TAXAN
APPLE-IIPLUS RGB INTERFACE CARD
RGB-IIB
PATENT P
KAGA ELECTRONICS CO., LTD.
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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 in
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. Connect the end of video cord with the four pin plug of RGB-IIB
to the video pin of the APPLE-IIPLUS computer.
WARNING
It is very important that step 4 be followed exactly. Connecting the RGB-IIB video
cord to any other pin in this row may damage the computer, the RGB-IIB or both.
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FIG. 4
VIDEO CORD
4P PLUG
CONNECT THE VIDEO CORD
TO THE VIDEO PIN
5
6
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 RGB-
vision monitor.
‘
7
8
Set the monitor mode selector-switch to the “II” position.
Recheck each installation operation (step 2 through 7) before
processing further.
9
Replace the computer cover and turn ON the A.C. power to
both the computer and the monitor.
10
11
Adjust the RGBvision monitor to obtain a satisfactory picture
(refer to OWNER’S GUIDE).
If there appears any abnormality in the quality of the video
display, recheck steps 2, 3, 4 & 9, particularly watching for cold
solder Joints and dirty contacts. If the display is still not satis-
factory, return the RGB-IIB module and the monitor to the
dealer from whom they were purchased.
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[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. SCREEN
CHARACTERS SWITCH POSITION
0
1
2
3
4
5
6
7
Black
Black
Black
Black
Black
Dark red
Aqua
White
Green
Orange
Yellow
Blue
Yellow
Black
Aqua
0, 8
1,9
2
3
4
5
6
Dark blue
7
(EXAMPLE)
If you want to specify CODE (NO. 5), change over the switches as
shown in Fig. 5.
FIG. 5
ROTATE A CENTER
OF SW
CODE (NO.0)
CODE (NO.5)
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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
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