Hi, Did anybody encounter a problem with the Display, where vertical line appears along side each character!
Moriseikie Machine with fanuc 18M control. I have identified problem as, with the Fanuc Vga Display controller Board A16B-3300-0031-05B.
Attached is the sample picture of the said problem, which I simulated on my table, by powering up the Fanuc PCB with 24V source and connecting the Video cable to a monitor. The screen shot gives you an idea of the vertical lines problem with the Display PCB. Please don't give attention to the message on screen because the board is not on the machine!
Some information: Board has a 'Western Digital' Video Display Controller QIP chip, WD90C24 and has 2 pcs of DRAMs HM514260 (256KB/16bit). I am suspecting, one among this two DRAM is faulty, causing these vertical lines along with the characters.
I wish to clarify, that the PCB works just fine while on machine with all the characters, graphics displayed nicely including their respective colors. except that each character has a vertical line in front. This is the problem!
Feed backs are appreciated.
thanks
sam.
Moriseikie Machine with fanuc 18M control. I have identified problem as, with the Fanuc Vga Display controller Board A16B-3300-0031-05B.
Attached is the sample picture of the said problem, which I simulated on my table, by powering up the Fanuc PCB with 24V source and connecting the Video cable to a monitor. The screen shot gives you an idea of the vertical lines problem with the Display PCB. Please don't give attention to the message on screen because the board is not on the machine!
Some information: Board has a 'Western Digital' Video Display Controller QIP chip, WD90C24 and has 2 pcs of DRAMs HM514260 (256KB/16bit). I am suspecting, one among this two DRAM is faulty, causing these vertical lines along with the characters.
I wish to clarify, that the PCB works just fine while on machine with all the characters, graphics displayed nicely including their respective colors. except that each character has a vertical line in front. This is the problem!
Feed backs are appreciated.
thanks
sam.