Question about Televison & Video
I have Samsung Plano Flat TV Model CZ21K5VB. I have replaced the defective FBT beaing Model FUH 21A001B(S) with the same make of the Chinease Model. But I'm finding retrace line fault.
Kindly suggest what to do.
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Posted on Jan 02, 2017
could be but there are a few checks that need to be donr first.. Try to turn down the g2 control just a bit on the flyback transformer. If no effect unsoder the blure drive transistor on the crt board If the blue is still there that means the crt is shorted and you could try to clean the elements with a crt rejuvenator and see if that helps. If the screen goes to red and green after you disconnect the blue drive transistor then you need to check the osd drivers as well as the rgb output drive from the video IC. If the blue gun in the tube shorted or leaky I have in the past and it really works a isolation transformer that plugs in to the crt socket and the other end plugs into the crt. What this does is isolate the the gun of the crt from the filiments and thats where they get shorted or leaky but for how long it will last who knows.
Posted on Mar 26, 2006
SOURCE: retrace lines in top of tv...
These lines are cause by defective capacitors in the vertical section of the TV. No adjustment will work unless the capacitors are replace. The values of the capacitors are between 1uF, 10uF or possibly a 47uF.
I do not have the service manual at this moment but you can google it by the model number of your TV.
Let me know if you need further assistance.
Posted on Jun 16, 2009
Picture goes to high green with retrace lines that shows picture tube is defective and requires replacement.
Usually in above symptom, TV goes to standby mode and standby light blinks when green raster problem occurred.
New TV is better option because picture tube of KV-34XBR960 would not be available any more.
Posted on Aug 14, 2009
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