CRAZED Posted October 16, 2007 Share Posted October 16, 2007 I had my monitor or chassis poop it today on a game that froze, when i seen it the cab stunk like burning electical parts. It was displaying a small part of the picture in the middle of the screen with threst of the screen blank, i tried to work out what went wrong and i thought it might have been the flyback as there were lines running through it like when the flyback is turned up to high. I turned it down shut the monitor off turned it back on and nothing. Flyback???? Link to comment Share on other sites More sharing options...
Jomac Posted October 16, 2007 Share Posted October 16, 2007 Might need a bit more info , like what type of monitor ? Brand ? Size ? , maybe a pic of the chassis ? Link to comment Share on other sites More sharing options...
CRAZED Posted October 16, 2007 Author Share Posted October 16, 2007 Samsung monitor 20inch chasis is Galaxy/kortek kt20 copy Numbers on monitor are; k-0900800589 51GGD95X-TG I just had it working and it looks as if the whole picutre has shrunk into the middle there is no picture missing its all just small and there look like there is red and green picture coming apart like two pieces of paper, ill get pics http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in010.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in009.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in008.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in007.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in006.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in005.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in004.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in003.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in002.jpg http://i139.photobucket.com/albums/q295/paulcaltabiano/th_MonitorandchasisGottlieb20in001.jpg Link to comment Share on other sites More sharing options...
Jomac Posted October 17, 2007 Share Posted October 17, 2007 It's really common for the flybacks on these to fail , but in this case it appears your deflection yoke has shorted . If you pulled the yoke off the tube and look on the inside you will see where it has burnt / melted some of the windings together. There is also another fault that effects these chassis that can appear with the same symptoms so to be certain you need to inspect the yoke or test the chassis on another tube . In some cases the shorted yoke will also cause the B+ section of the chassis to fail resulting in a small picture., the 2 later later faults are evident by the picture taking much longer to come up to normal brightness. Link to comment Share on other sites More sharing options...
CRAZED Posted October 17, 2007 Author Share Posted October 17, 2007 Is there anything i should know about pulling off the yolk? Should i earth the monitor to save my ass? What do you noramlly earth to when you are draining the monitor? Thanks for the help so far mate. Link to comment Share on other sites More sharing options...
Jomac Posted October 17, 2007 Share Posted October 17, 2007 Is there anything i should know about pulling off the yolk? Should i earth the monitor to save my ass? What do you noramlly earth to when you are draining the monitor? Thanks for the help so far mate. Yeah you should know they can be a pain in the butt to get off :) No need to discharge but if it makes you feel safer use the Braided earth strap around the tube as an discharge point . I always mark the convergence rings and yoke with a texture so you can put them back exactly where they were if you need to put them back on. It can be tricky getting the rings off in one piece so try putting your hand around all of them so it comes off in one piece without moving each individual ring. Link to comment Share on other sites More sharing options...
CRAZED Posted October 22, 2007 Author Share Posted October 22, 2007 In some cases the shorted yoke will also cause the B+ section of the chassis to fail resulting in a small picture. I havent had a chance to find out the problem yet but looking at the above quote in your post i see that if the problem was the deflection yoke it could mean that both the tube and chassis could be faulty. Would that be right? Link to comment Share on other sites More sharing options...
Jomac Posted October 22, 2007 Share Posted October 22, 2007 They are fairly forgiving those chassis so there is a good chance it's one or the other , but dont hold me to it :) Link to comment Share on other sites More sharing options...
GameDude Posted October 22, 2007 Share Posted October 22, 2007 Is there anything i should know about pulling off the yolk? Yes my mum showed me this... its very easy... you crack the egg in half over a cup and slowly pour into each half of the shell............. OH:redface..... you mean YOKE as in the copper thing around the neck of your tube...:lol Anyway I would have though measuring the X and Y resistance on the yoke would give an idea of if its shorted or not??? Link to comment Share on other sites More sharing options...
CRAZED Posted October 22, 2007 Author Share Posted October 22, 2007 Anyway I would have though measuring the X and Y resistance on the yoke would give an idea of if its shorted or not??? Ive never played with tubes so if your offering any assistance id be appreciative. Yeah you crack an egg and seperate the yolk from the white add some shit here and there and somehow you get a cake, unfortunatly i never did learn the cake making process. Can you delve into that, with all your experience:D Link to comment Share on other sites More sharing options...
Jomac Posted October 22, 2007 Share Posted October 22, 2007 Measuring with a multimeter isn't going to tell you as much as physically looking at it . There could be 15 turns shorted out of 500 , you would need a really good multimeter to see even a slight difference. Link to comment Share on other sites More sharing options...
GameDude Posted October 22, 2007 Share Posted October 22, 2007 Fair enough.... its just daunting for some to pull apart a yoke to that level to find its not the fault then try to reassemble.... I personally hate it and avoid at all costs:lol Link to comment Share on other sites More sharing options...
CRAZED Posted October 23, 2007 Author Share Posted October 23, 2007 Fuck it, how else do you learn? right?;) Maybe thats crazy talk, ill tell you when i know:lol Link to comment Share on other sites More sharing options...
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