Question about RCA F36450 36" TV
The LED in the Power button blinks a few times and I hear a few clicks inside the TV (perhaps a relay?), but the set shuts down before it powers up. Screen is dead. The fuse on the 115VAC input has good continuity. This problem may have been caused by a power surge from a lightening storm, but I can't place the timing. I suspect a problem in the power supply but don't have a service manual. Can someone please provide me with test points and voltage values in the power supply so I can try to isolate this problem? I repair military circuit boards and power supplies for a living but don't have the schematic or manual for this TV. Does this TV have a service mode where it will display error codes? If so, how do I enter the service mode? Any help would be greatly appreciated. Is the problem most likely in the power supply or could something else cause these symptoms? Thanks in advance!
No sir it probably isent a power supply problem as in these sets it wouldnt act like that. First thingm to check since you say your a service tech, is in the horizontal output check and see if the horiz. output transistors shorted. If its not then check a small coil off the base of the horizontal output transistor. its really the base drive coil so take it out and scrap off the ends BOTH ENDS and reinsert and also resolder the horizontal driver transformer. This may or may not fix your problem But if it dosent order if you think ther sets wrth it the flyback transformer as this is a big problem in these sets if the for mentioned things did do the trick. follow the kit instructions that come with the flyback transformer!! Dont take any short cuts. Make sure you do take out the horizontal output transitor or at least unsolder all the leads when tesating it for a short. Good luck
Posted on May 21, 2006
1st flyback 2nd horizontal transitor 3rd replace gamestar module From Ott TV
Posted on Oct 07, 2007
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Posted on Jan 02, 2017
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