Question about Samsung TXN2771HF 27" TV

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TXN2771HF (5yr old) - Front Panel a/o Remote Issue

Remote control will Not turn TV ON, but once TV is Manually turned on, the
remote will operate ALL unit functions..also, randomly, when tv is manually
turned on, the volume(s) and channel(s) settings will cycle from lowest to
highest until manual intervention on the front panels causes condition to
cease..

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Sounds like the 5 volt supply is low, Look for the 5 volt regulator, Measure you can go directly to the sensor 3 pins 1 will be 0 volts one will have 5 volts the other is usually a fluctuating 3-5 volts if 1 pin has to have 5 volts if it is low check capacitors around the 5 volt regulator probably 47uf to 100uf look for rusty look on the leads. If you see it change it! check these voltages with set turned off ( standby ) do not attempt if you dont know what your doing. Good luck. The reason it works when it is on is because there is a run 5 volt supplement.

Posted on Jun 21, 2008

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