In message <f9140e884f.rogerarm@xxxxxxxxxxxxxxxxxxx> Roger Darlington <rogerarm@xxxxxxxxxx> wrote: > ---------------- > Equipment: > Early Iyoniix RO 5.13 with supplied graphics card, Iiyama 22" CRT > monitor, both 6 years old. 2048 x 1536 x 16M colour mode. It has > worked perfectly for 6 years, until a month ago.. > --------------- [SNIP] > After a lot of white flashes on the screen, which usually occur > horizontally, the raster sometimes collapses to a single (very bright) > vertical line mid-way across the screen (ie: in the centre). > At first thought I suspected a dicky contact on the horizontal > deflection circuitry, but I think I can rule that out because > sometimes the raster does not collapse, but there is still a bright > (but not as bright) vertical line down the centre of the screen. If > the horizontal deflection voltage had collapsed, I would not get a > normal raster at the same time as the bright centrally placed vertical > line. [SNIP] This is most likely a dry joint in the line scan section. My 22" VM Pro 510 had exactly the same problem. Thumping the side of the monitor cured the problem temporarily :-) However, being the lazy so and so that I am I never got around to doing a proper repair early enough. Unfortunately I was not in the room the last time it happend and on my return I was met with a horrible burnt carbon smell. Disemboweling the beast revealed a rather large hole burnt in the PCB where the line scan coil plug was. This meant the monitor had to be written off Been kicking myself ever since :-) Now working at 1920 x 1440 on a VM Pro 450 (19") It's not the same! :-( Best get yours to a TV Engineer who should be able to reflow some solder around the offending joints - like wot I should have done Best regards -- John Chetwynd --- To alter your preferences or leave the group, visit //www.freelists.org/list/iyonix-support Other info via //www.freelists.org/webpage/iyonix-support