Samsung LE40R73 LCD clicking

I had the same issue. Some other sites suggested the Inverter PCB could be faulty but I couldn't see anything obviously wrong with it. However, I did notice that there was only 19V coming in on the 24V supply to it. The 24V is supplied from the Power Supply PCB (the one where the mains supply comes in to). So the solution was to replace 2 x 680uF capacitors on the power supply board, located near the 24V output connector to the Inverter PCB. Visually, these two capacitors appeared to be 'bulging' which is a good indication that they are faulty.

Its a faulty power supply.There's a leak capacitor that cause of low voltage output of the power supply.The leak capacitor can identify through visual checking.The leak capacitor have bulging tops.Open the cover and find the power supply located at the upper right and you can see the bulging tops of capacitor.Replace the same value of capacitor.

Good day!! That problem is usually cause of bad/faulty capacitors on the power supply board..So you have a better chances and easily locating the faulty capacitors if it is look like leak/bulged on the top.. So please try to follow this instruction on how to do that.. 1. Open the back cover of your TV. 2. Look at the power supply board..Its normally connected to the power cord.. 3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors.. 4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value.. 5. Some of the capacitors not bulged so its better if have a capacitance meter.. Hope it helps you..

Good day!!

That problem is usually cause of bad/faulty capacitors on the power supply board..So you have a better chances and easily locating the faulty capacitors if it is look like leak/bulged on the top..

So please try to follow this instruction on how to do that..

1. Open the back cover of your TV.

2. Look at the power supply board..Its normally connected to the power cord..

3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..

4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..

5. Some of the capacitors not bulged so its better if have a capacitance meter..


Hope it helps you..
Thanks for using fixya

Hello Its a common problem of LCD television.The cause that symptom is a faulty power supply. There's a leak capacitor in the power supply that my cause of abnormal output voltage supply.If you want to try repair or fix your television this are the procedure,you can identify the leak capacitor through visual checking.The bad or leak capacitor have bulging top compare to flated top of good capacitor.Just try to open the cover of the TV and look the power supply pull out and remove the cover of power supply and you can see the bulging top of capacitor.Replace new capacitor with the same value,Avoid short circuit when you sodering the PCB board of the power supply.If you can't do the repair,call a technician of sent it to authorized service center.Thank you hope it will help you...