Hi I have a Fanuc OM with 9 inch mono monitor , all the monitor characters have vertical lines in front of them , before i get a new monitor any one know if its the monitor or the fanuc computer that is generating this , it some times disappears.
Hi Roger , Thanks , when I look at the monitor sometimes the characters change like a refresh or a digital process and sometimes they are OK as the monitor is just composite video i dont think its the monitor , i am leaning towards your suggestions of graphics driver or memory , do know where i can look for the graphics pcb of the fanuc om
Hum ... looking more closely at the results, I am suspecting the addressing part of the graphics memory. I suspect one of the address lines is failing.
What version of the OM is it? (the number on the main board) Are you using the on board graphics or a separate card? Of the graphics on the mainboard is failing maybe you could just buy a used card? It doesn't look like a CRT problem
This is definitely a video adapter problem, the monitor itself looks fine. Without knowing any specifics about Fanucs, my guesses would be:
- A stuck bit in the video RAM.
- A timing problem in the RAMDAC (or whatever you call a RAMDAC equivalent for a monochrome display adapter).
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