The TV turned on for a second then there was a pop, and the TV will not come on now. I can hear a little buzz about every 10 seconds, like it is trying to come on, but the power light shuts off and it tries again, and again. I do not see any visual problems, however when I plug the TV into the wall socket there is a small spark. I check the only removable fuse, and it was fine. Any help would be appreciated. Thank you.
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Re: TV is not coming on.
The model you have has a very common problem and that would be the main Hi-voltage transformer (the flyback) , the horizontal output transistor, Horizontal drive coil between the secondary of the horizontal drive transformer and the base conection of the horizontal output transistor and/or the resistor that feeds the b+ to the primary of the horizontal driver transformer. All or part of these will be the bad componets. Now if you have never had any experience replacing solid stse componets then you should leave this reapir to the pros, as there will be soldering involved as well as the HI voltage safety issues to deal with. Good Luck
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Sounds like your power supply is causing the problem. Unplug the TV wait 10 minutes, look in the back for a red button (circuit breaker) push it in. If this does not work you have a low voltage power supply fault.
increase the volume to max level .close yourself to TV speaker and listen.if could not hear anything,just turn it off and turn on if you could not hear at least pop sound from the speaker,you will have to replace new speaker.if you are able to hear Buzz noise or very low sound ,sound circuit has to be repaired.
My Loewe Aconda 81 HDR TV will not turn on. When I press the power button the green light comes on but the red light stays on with it and after a few seconds the green light goes out and the red light stays on. Any help please.
Initially, if you have confirmed that the source of the buzzing sound is from inside the TV, then that would indicate a component about to fail or would need attention. Let us try process of elimination:
tuner - most unlikely, the tuner is responsible for selecting the channel. No component/part of the tuner could make such a mechanical buzzing sound;
speaker(s) - most unlikely, the speaker could have a buzz but generally would not affect the video nor cause snow (weak TV signals);
transformer - a strong possibility although without knowing the exact model, at most generic ideas; power transformer, flyback transformer, horizontal drive transformer (unlikely);
arcing - another strong possibility. This could be caused by damp, dusty surroundings of the components especially at the FBT area. Another area that could have adverse effect when dusty/damp would be the anode cap.
This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.
Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.
Sounds like trouble in the standby/power up circuit. have you tried unplugging the TV for a half hour and seeing what happens? It might start up but I think this problem won't go away. If you heard a high pitched buzzing it sounds like a problem in the high voltage not letting the start up circuit work. threy are related. The start up circuit waits for the high voltage to stablize and then switches it on.
I'm thinking the buzz is from the deflection coil (yoke) on the neck of the tube or the power supply. Probably not the high voltage as you can hear the "buzz". If it's really that annoying, you can take a length of rubber tubing (no metal) and listen to the buzz coming from the chassis kind of like a stethoscope. STAY AWAY FROM THE HIGH VOLTAGE, please.
The yellow picture sounds like a blue chroma failure. A tube can be rejuvinated if need be but that's a job for a pro. Hope this helps.