I purchased a Model No. 4084 TV/ monitor from Sears ($364.00 including tax) together with RGB Cable Model 6529 ($18.00). I had to modify my computer using an RGB Conversion kit #220-453 from Arthur Brown Co., 1702 Oak Knoll Drive, Alexandria MN S6208 ($19.95). This kit requires opening the computer and doing some soldering inside. t connected the cable as follows:
Conversion Cable RGB Sears Cable
Brown Orange
Red Red
Orange Brown
Green & Yellow Bare Wire
White Green
Black Blue
*+5 volts Yellow
*Run a separate wire (not included) connected to the +5 volts location shown in the instructions for the RGB Conversion Kit.
Try out the new system by entering BORDER 6. If the edges of the display have wiggles or the screen goes blank, open the computer and adjust the Horizontal by turning the “VRI” located in the bottom left side and/or the “CS” which is at the middle upper right part of the board.
I now have fantastic sharpness and color. I noticed Sears had this monitor on sale recently for $219.00. (Editor’s Note: Consumer Report’s January 1985 issue rated this monitor’s 80 column display in RGB mode as good as those monitors costing twice as much!)