Looking for solution to fuses blowing in my flat scrren television with built in dvd? I bought it used and got it home and it would not come on. The fuse was blowed and replaced it with a new one and soon as I plugged it up it blowed again. Any ideas would be greatly appreciated!!
If a fuse should blow up, there should be a reason for it. If you replace the fuse without rectifying the problem and switch it ON, the newly replaced fuse too will blow up. Before replacing an other fuse, find out the reason and rectify it. There should be some shorted component/s at its main power supply board. Check and replace them. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ It has schematic diagram of power supply section to many televisions. Pull up older posts by its left side bar. Problems to Sylvania too will be there.
SOURCE: Sylvania lcd color tv
try a diffenrt outlet if it still bunrs of a different fuse! could be the fuse not big enough for the different appliance on the circuit !
i would suggest take it to a tech it could be a problem in the tv that could cost only a few $ to fix !!!!
against trying to much to plug it in and out you could burn transistors or other expensive part of the tv!
SOURCE: Sylvania lcd color tv
if you have replaced the fuse already then you know how to open the back of the set . The problem is more than likely one of the diodes in the rectifer circuit . They will be the four large black components The bad one will have to be desoldered and a new one soldered in its place . It will take a small amount of technicial ability but can be done easily at home.
SOURCE: Tv keeps blowing fuses when its plugged in...
There should not be any reason for the new TV to blow a 15 amps fuse in the house.
The TV has an internal short circuit even if it is new, I would suggest to return it and get another one.
Good Luck.
SOURCE: flat panel tv blows fuses
next to the fuse that blows is 4 large black diodes
.one of those is common to short out. the bad one would give you areading of zero ohms when checked with a meter. or just replace all 4.most likely its location D603. hope this helps
SOURCE: i put the fuse in
You should replace the power supply module instead of trying to troubleshoot it down to component level, it may have shorted out bridge rectifier, shorted power MOSFET, etc.
Try www.shopjimmy.com
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: www.interliquidparts.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
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