Can anyone giude me (pic, label, etc.) to the fuse on this board?
I've replaced the board and now want to repair the blown fuse. I have no idea how to find it. A tech did tell me the fusae was blown but I ddidn't look ar where it was. I feel there is very excessive heat coming out of the back of this series TV and couldn't that be the culpret behiond the failures of this this totally enclosed board?
thank you for any info.
The fuse is located just upper right to the connector that attaches to the main board. This is a SMD pico fuse that is rated for 3 A @ 32 V DC that protects the Vin bus. Replacing the fuse may not fix the problem as it has most probably opened because of failure of another component.
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Probably the T con board is faulty. T con board is the one which drives the lcd pixels. Chekc the video to identify the t con board. Also try to remove the connection to T con board and reconnect it. some times bad contact on those connectors can lead to such problems.
Probably the t con broad is faulty. t con board id the on which drives the LDC panel. I some tvs its not possible to replace the T con board as it would be integrated to the LCD panel normally in 32 inches and bellow. In others i would be separate board which is replaceable individually. I have added a video to know how to locate a t con board which is replaceable individuality. As you didn't mentioned the model number its not possible to add the exact image. In all most all the tvs T con Board (individuality replaceable one ) will be placed on the top center of the tv cover with a metal shield. If its incinerated to the LCD panel then inside the LCD protection metal chassis. Check and fin which one you have.
Probably the t con board of your TV is faulty. T con board is the one which drive the lcd pixels. You have to replace the T con board to get it work properly.
Here i have added the picture of the T con board of your tv for reference.also added the video to know how to replace the T con broad. RCA L32WD22 T-CON BOARD UT-5531T03088-76J
LCD TV went green screen because defect t-con. Replace t-con with same type. You can fine label name of t-con on pcb. Open rear cover, you will see pcb whitch attachet on panel, open it. You can buy it on ebay or online market or call samsung technician to check it all your tv problem.
Most of the time they use fuse resistors. Sometime there a number of them. They are not all the same. This is not a simple fuse. It is a resistor combined with a fuse. You would need the service manual to properly identify the fuse resistor and have its spec. You would then have to order the correct one from a parts distributor. If it cannot be replaced generically, the original would have to be ordered from the manufacture.
In any case, if there is a blown fuse on a power supply board you can be sure that there are failed components that are most likely shorted. This would mean that the board would have to be troubleshooted to find and replace the defective parts.
Most of the circuit areas and the boards in these sets are not supported to be serviced at the component level. They change the defective boards as in the same process as servicing computers.
As for the heat problem, if you can find someone who is technically very competent, maybe he can custom install a fan for the area that is getting heated. It should be possible to find a 12 volt source from the main power supply to run a small fan to assist for extra cooling.
If you have your set in a cabinet, or if it is wall mounted it may run hotter. We found that sets that are wall mounted tend to fail more often because the heat can reflect off of the wall back in to the set. Cabinets tend to not allow the heat to dissipate as well as out in the open.
same happend to my lns 4692....control board is gone and since it's attached to the screen...everithing is gone,my tv is under warranty,but Samsung did nothing in 3 (three!!) months,though they promised service,repair,replacement..u name it..!!I just finished a complaint letter to attorney's general office,NJ,consumer protection divisin,BBB,and others...let's see what happens...I WILL NEVER BUY SAMSUNG AGAIN, AND THOSE OF YOU WHO WILL, THINK ABOUT WHAT HAPPENED TO ME...SO THINK TWICE..OR THRICE...HA ,HA...SAMSUNG, IN ENGLISH IS...SOME SUCK!!!