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AST RESEARCH TECHNICAL BULLETIN TB-0084 5-3-85
MGO 123/PREVU AND MAX 12E
Our customer base has reported that the Princeton Graphic MAX 12E
monitor does not function properly with the AST MonoGraphPlus or
Preview!
The symptom reported is that when high intensity is selected, the
monitor displays reverse video with no characters legible. This
symptom was reported using the display test in IBM diagnostics or
when using Turbo Pascal.
According to Princeton Graphic, Technical Support, the
incompatibility exists with AST as well as other manufacturers.
The short-term solution, according to Princeton Graphic, is to
remove D201. D201 is located on the main board next to the input
signal connector in the MAX 12E. Princeton Graphic did not
indicate what their long-term solution is but serial number
ky23501 through kw15861 will not have D201 installed.
AST recommends that Princeton Graphic be contacted for
confirmation and instructions of modification.