Question about Polaroid 2611-TLXB TV
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Posted on Jan 02, 2017
hi there, this may helps you a bit. Try to unscrew the back casing. visual check the power supply section. If you notice some electrolytic capacitors are bulgy or bloated, it needs to be replaced with same value and type. Felt the power transistors which one really heats up. Over heating of electronic components or part do affects the pictures. this also need to be replace. doing preventive repairs can extend the lifespan of your TV.
Adding exhaust fan may also lessen the heat builds up on the board. Proper ventilation also helps in the performance of the TV. If this do went well maintain the fan.
Please vote and rate. Good day
Posted on Mar 11, 2011
Sir the problem of your tv has two possibility, the inverter board may be damage or there is no supply to the inverter board. To check the voltage input on your inverter board you should remove the back cover of your tv, the supply input is 24 volts dc. If you can do this let me know.
Posted on Aug 14, 2011
If you can see a picture (dim and low contrast) when you shine a light on the screen from an angle, your backlight inverter may have a burned-out part.
After this test, whichever result you get, unplug the set and use your eyes and nose to search for overheated parts. I have found connectors that overheated because of a poor-quality solder connection on the circuit board. Note that parts, particularly resistors, can overheat because of a fault in another part.
It is common for solder connections to deteriorate if they are frequently run at high temperatures. Sometimes circuit boards "normally" turn brown from heat because of marginal thermal design. Check the solder connections on components in the hot areas.
Static electricity precaution: most digital electronics are easily damaged by static electricity discharge. Avoid touching the metal parts of the circuitry unless you first touch the metal frame of the set to discharge any voltage buildup on your body.
Posted on Nov 10, 2011
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