Question about Sansui DTV2760 27" TV
2 things for you to check if you going to open it and do it yourself
First: The internal fuse, check it hasn't blown, if you don't have a multimeter, u can turn your stereo up loud and touch one end of the Aux line out lead if you have one. It will Buzz when you touch it, then touch one end of the fuse to the 3.5mm jack and the other end to your finger, if it buzzes the fuse is working, if it doesnt it is dead
Secondly: Could be blown capacitors, you can tell they are blown if they are buldging or have brown residue on the circuit board or on top of them
Please if you dont have any experience in opening Tv's its best you get a pro to look at it for you
Posted on Apr 05, 2011
It seems that the SMPS is loaded as the driver is cut off on protection which makes the whining noise. You will need to remove the panel after disconnection of power, disconnect power to the main board and see if the +B voltage comes up on the circuit.
If so there is a short in the mainboard, can be the drivers shorting. Check with the multimeter to confirm
Posted on Apr 05, 2011
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Posted on Jan 02, 2017
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Thank you for your post, friend!
Based off the information you have provided it sounds like you are hearing the compressor come on. In the newer, high-efficiency compressors they operate much faster than the older models and some may put out a high pitched hum or pulsating noise. I hope this helps. -Matt
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