Question about Toshiba 52XV540U 52 in. HDTV LCD TV

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My Toshiba 52XV540U won't turn on even I tried many method described in manual. I also checked two fuses inside, they look good. Any suggestion? Thanks!

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Do you have any tv repair exp? If not take it to a shop! If you do, then check for swollen caps.There are 5 fuses in that set,2 glass ones and 3 light blue solid that says 5 amp. I have a same mod. tv as you that I can't fix. It's probably the main power board as is mine. The board but most likely has to be changed. I am checking on a price and don't know yet. I have 35 yrs. exp. in repairing tvs. I can fix most of the lcds that i get. Sometimes I have a hard problem.If you don't have any tv repair exp.then you need to take it to a shop.Either they can fix the board or find another one,perhaps a used one,which will be a whole lot cheaper. The tv is still worth putting a few hundred in it, unless you can afford a new one. Maybe a bit smaller since they are coming down quite a bit. I will let you know what happens with mine!

Posted on Jan 13, 2014

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Dead set toshiba mod. no. 52xv540u no bad caps,no clicking,no led lights on front


Hi, First check that you have good power coming in from plug.
If that is good check out power board (capacitors Bad) replace if oozing out or bulging out. If you are good with soldering then do so.
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Dead set toshiba mod no 52xv540u


hi if the set is totally dead first thing to check is the fuse,usually glass type. or solder in fuse called a wickman if these are ok the next to check is diodes, transistor, resistors, but you would need a mulitmeter and a service manual of the tv to help you find part values hope it helps

regards
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Jan 09, 2014 | Toshiba 52XV540U 52 in. HDTV LCD TV

1 Answer

Why won't my TV turn back on even manually??


total dead usually means the fuse---unplug the set for safety and remove back cover---follow power cord just inside and you will find the fuse in a snap in holder--check to see if bad.............if good let me know and I will try to assist you.

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Fuse


Hello!
Why do you want to replace fuse? Is your projector dead? In many cases just a fuse replacement will not solve the problem. if fuse is blown, good chance, that power supply has shorted components. still, you may try to replace the fuse with lower grade, first, and observe the behavior. If unit turns on and starts operate normally, then fuse blows, you may install the stock fuse. Means: it's just a fuse's issue. If it blows right away, don't even try to put regular fuse, instead. unit must be repaired, first. Power supply or ballast might be shorted. To locate a fuse, you must look around the unit and find a little door, says: fuse. it might have a screw or two holding it, might not. Look at the fuse, first: if it looks pulverized, don't even dare to replace it! it will blow again and make more damage to the unit. If thin wire inside is just torn, then follow the procedure, described above. If the fuse is ceramic, you won't be able to determine, how it blew. Look at the fuse's rating: it might be written on a fuse door, or on the fuse, itself. could be from 5amp to 10amp, depend on power consumption. Remember: first, install the fuse with 1/2 of value: i.e: 6amp-put 3amp first, etc. Good luck with your project.
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1 Answer

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regards
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Describe how I access the inside fuse board?


I checked my Camry's manual which described how to open the cover over the board. The diagram on the inside of the fuse board cover identified the location of the cigarette lighter fuse. I replaced it with the spare 15amp fuse found in the other fuse box next to the engine block, also described in the manual. However, this did not correct the problem. On a hunch, I pulled the fuse labeled "power point" and saw the burnt filament in the fuse and replaced it with the 15amp fuse. This corrected the problem.

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