The relay just after the input transformer is buzzing loadly (oscillating) when the power button is pushed. The TV video and audio is fine. The bussing is not coming throught the speakers. The 6W resistor between the transformer and relay is also getting very hot with just the set plugged in but not turned on. Does anyone have a solution? Thanks....
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Fault with its main board itself. After a duration of proper working, the horizontal oscillation shuts off, while the main power supply voltage is there, for some time, [that is why you hear the buzzing sound; generated at its SMPS transformer]. A loose solder terminal at tthe main board can cause this. Even though, there might be some other reason too. The troubleshoot to this kind of fault is, somewhat skilled one. It will take some time to reach the exact fault point; even for an experienced service technician. It will be best to seek assistance from any experienced service technician. Electro help
Is the buzzing happening during the COOLING mode? If so that realy is turning on the fan blower.
You should be able to replace the relay itself. They are generally on a socket and there is realy nothing else mechanical in the box except for the wiring of the unit.
Sounds like a bad battery or a bad starter relay. Take the battery out and take it to an automotive parts house. Ask them to load test the battery for you.
If the battery test good, reinstall it in the bike making sure your connections are good. Press the start switch and listen for the buzz. Look for the starter relay. It's a one inch plastic cube. When you find it, press the start button while holding the relay. Is this what is making the noise?
If all you feel out of the starter relay is a simply click, and the buzzing is coming from the starter, you're solenoid may need new contacts installed in it or your solenoid might be bad.
Hi, and no this buzzing is not normal. If the test button does not trip, its not to major. It sounds as though you have a relay, fan, compressor, or some other relay that has worn contacts that buzz when power is put to it. If the unit operates and its not to the point it is driving you insane, you can take it apart to locate which relay is the noise one and replace it if you have the skills to tackle it. If it fails completely, not knowing the sequence of operation unless you can read a ladder schematic, you will have problems locating the one that was buzzing. I would remove the front cover if its a wall or window unit to find the control section and locate this buzzing relay to replace it. Best of Luck to you, Shastalaker7
I had the same problem with the same model. The solution was to replace a capacitor, C622, which is located near a small blue rectangular plastic component. This component is a relay that is controlled by C622. I paid $2.39 for the part, $8.99 for S&H for a total of $11.38. This fixed my problem!
Hello to all you buzzers, I have the answer to your problem. First this is what's happening. The buzzing is coming from the power relay. It vibrates at 60hz because the power supply filter capacitor is not doing its job hence you have a rough d.c. pulse going to the relay.To solve the problem remove back of t.v. slide circuit board out (you will have to disconnect white wire from degauss coil,located on left front) look for a blue box approximately 3/4"x1 1/2" this will be the power relay. Now look for capacitor location #c622 near the relay. This capacitor should be 470uf 25v. Remove and replace with 470uf 35v capacitor, connect white degauss wire temperarily put back on and give it a spin. Hope this solves all the buzzin,robert