I checked outlet, power cord, batteries in remote. Also tried turning on from both tv and remote. No sound or lights come on. Is there something i can replace at home instead of purchasing another tv
SOURCE: Model #: LN40A450C1DXZC TV will not turn replace
Call Samsung Customer support. Some of these sets are being repaired on a one-time courtesy basis.
SOURCE: Samsung FPT 5084X won't turn on
Sorry, but welcome to the world of highly efficient, component-critical switching power supplies.
These are all of those things and the failure often is related to a specific type of component, an electrolytic capacitor.
These are chemical devices and cheap ones fail easily, the most expensive take little longer but the primary value shrinks while the losses climb until the part cannot do what it should any more.
The main power supply is probably at
fault and without some technical background and a couple of test instruments,
you will not be able to do the repair yourself.
What you can do though is; unplug the set, let it
stand overnight or at least several hours, remove the back panel and look for a
separate board with mostly larger components on it; it will have a ferrite core
(no laminations as with a line-frequency part) transformer on it and several
larger capacitors which are cylindrical and mounted vertically to the board.
Before touching anything inside, especially on
that board, allow several hours to be safe since the larger capacitors can hold
a painful voltage charge for some hours.
If you see signs of overheating such as
discoloration of the board material, it may not be repairable but if you can
find a part number on the board, you might be able to buy the power supply and
install it yourself but it will likely have the same problem eventually unless
they have altered the design.
If there are no signs of heat damage to the board,
there may be companies offering to repair it as a subassembly instead of
repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the
power supply still may not be at fault since most are capable
of switching on and off if a downstream problem is causing an overload.
SOURCE: my samsung HL-T5076S won't power up.
Ok, i just realized you stated that you get no stand by light. this is a dead power supply board. you will need to replace this power board in order to restore proper function in this unit.
SOURCE: Samsung LCD Flat Screen 40' T.V. I purchased this
Check the fuse on the power board also check and replace any swollen capacitors on the power board. If still no power then replace the power board.
SOURCE: My samsung 32'' lcd tv
poke it open, you'll find bloated capacitors at power supply board. biggest one, with power cord pluged into. replace with thesame value(s).
you good to go!
don't lie, next time! your set has been acting up fpr a while, before it quit. Remembering: few attempts to turn it on, then it works!
good luck.
665 views
Usually answered in minutes!
×