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wil buy a scope and test some more we cant think of anything else

you mean those 2 dark thin things with components inside of them ? we did not do any test friend is a electrical engineer has allof of crt experience ,but we are not shure its not caps or resistors or diodes so whats left ? these 2 optos or the long thin things with components inside of them...

I found my problem these optocouplErs are dying and getting hot .but i dont know where to find a replacement there is no schematic ibm monitor...

i dont know how to test the b+ voltage :)

i did a full recap 90% of the caps where dead like 100% dead ,i left 2 original caps in they where both bp caps and wel in spec ,the overscan is because i touched one of the rings putting back in the case i know dumb ,friend says its x ray kiking in and or film caps dead he also says could be...

i did a full recap replaced the degauser block 'monitor turns off after couple of sec i tested the flyback by disconnecting the neckboard monitor stays on so flyback is stil good ! friend says x ray protection is kiking in and shuts down the monitor any one has a schematic for a IBM 8514 thanks

yes i did but i found out my problem digausing is not working

i also have this monitor got if for free i have the same smeared problem in the middle of the screan i replaced the 3 33uf 10v caps no change stil the same problem

hi i just joined this forum ,i bought this crt monitor for 20 euros my plan was to add rgb scart but its complex with out a schematic so far i added couple of resistors and transistors i also switch the green switch to rgb just to test the internal is almost the same as a c 1080 series or the...