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Samsung is known for producing
high-quality LCD televisions with excellent imaging and sound.
Unfortunately, LCD televisions, like all electronics, are subject to
problems on occasion. Common Samsung LCD problems include a television
with sound but no picture, sometimes due to a faulty power supply.
Although these problems can be difficult to fix by yourself, it is sometimes possible to extend your television's warranty by contacting Samsung.
Diagnosing and Fixing A TV With No Picture
Problems can often occur with even relatively new Samsung LCD TVs. Some customers report their screen going black shortly after turning
on the television, even though the TV's speakers continue to produce
sound. You can test and rule out a number of things before concluding
that your TV has a hardware defect. First, check the input settings of your television. Often, users will experience a dark screen when first turning on their television if the selected input corresponds with a turned-off or
unplugged input, such as a gaming system or DVD player. If the problem
persists, try reconnecting all cables on the back or sides of the
television. It's possible that one of your cables
has gone dead. If you have access to other cables, try swapping these
in and see if the problem persists. Some customers report that turning the television off and unplugging it for an extended period of time, up to 24 hours, can fix the black-screen issue.
Power Supply Issues
If you've tried all
of these suggestions and problems persist, it's possible that the power
supply inside the television is defective or broken. The power supply
for most Samsung LCD televisions will cost around $150, with labor costs
of around $250. Unless you have a fair amount of TV repair expertise, this is probably not the sort of repair you'd want to attempt yourself.
Also be aware that occasionally, especially with older television
models, the part you need might be out of stock. Getting a back-ordered
part shipped to you or your local repair shop could take up to a month.
If you register your Samsung LCD TV online, your standard one-year warranty may be subject to a three-month extension. Be sure to save your bill of sale; Samsung might ask you to send them a faxed copy of it when you ask for your warranty extension. If your television
is still within its warranty period, it's probably best to contact
Samsung and ask for a replacement television, or a professional repair
service. Problems that fix themselves may crop up and become permanent
over time, and you don't want to be stuck with a costly repair outside
of your warranty period.
what you are experiencing is that your screen bulb is burnt.the screen bulb is what lights up your screen, its just like a fluorescent tube,when it is burnt it flickers for a while and it later goes off.. the only solution is to change the screen bulb as soon as you can
kcs36dd, Lcd TV's also have, just like LCD monitors, an AC to DC voltage power supply. It is called a "switch-mode-power-supply" and generates the DC voltages required for all the other important electronic circuits inside the unit. 98% of all 14" to 22' lcd panels have backlighting provided by "cold-cathode-fluorescent-lamps" (CCFL) that produce WHITE LIGHT so you can see all the pretty colors that the glass LCD PANEL produces on the screen. The INVERTER circuit requires 12vdc to 20vdc from the SMPS to convert into 500 to 1000v ac to light-up the CCFL's. IF the SMPS detects a FAULT CONDITION with itself or the INVERTER it will go into what is known as FULL or PARTIAL SHUTDOWN MODE to try and save itself from a catastrophic, nonrecoverable failure. e.g. sparks, smoke, fire. lmistyrel on aim.com I could give you more assistance if you had provided following informatiom.
1. How old is the unit? 2, Approximate total "ON" hours unit has? 3.Has unit failed within the WARRANTY period? 4. Will SAMSUNG do a cash+old unit swapout because of PREMATURE FAILURE? 4. Do you know enough to do a unit TEARDOWN and inspection to possibly determine ROOT CAUSE of SMPS/INVERTER failure? 5. Can you handle a soldering iron and solder to make DIY repairs to unit. 6. Since your unit is just a little more complex than a LCD MONITOR, have toy viewed on YOUTUBE short video clips of "LCD monitor disassembly" or "LCD monitor repair" for the most common cause of BLACK screen complaints? If further assistance is required do additional post to original. 12fixlouie aka louie12fix on fixya