I press the power on button, I here the power click, a short light buzz and then the power goes off. The screen is completely dark. The unit is about 1 year old and outside of warranty. What do you suggest I can do to fix it?
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Re: RCA HDTV D40W20: Turning it ON
There seems to be problem withe picture screen.Drop into the nearest service center and it will be fixed.Its not a problem at all..
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Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Your shutter is stuck open. Remove the lens. Set to fireworks mode. May need to be in a dark room. When you press the shutter button tap the camera with an object that won't damage it. I used a rubber coated knife handle. Pull the battery and repeat. Tapping all around the camera. Hopefully it will break free. Then do some continuous shooting to loosen it up.
It is possible that your TV has encountered a fault in the power section possible a short in the drive power section. hence on powering the power sully working OK is switching the secondary power to the main board but this short is taking in more current than specified. the feedback of this is read by the SM unit to shut off the power to protect the supply. Hence you will have to probe into the sections to find this short, perhaps a HT drive transistor or the HT transformer or capacitors. If will be easier to check the continuity with a meter. Please attemptt only if familiar otherwise take help. Disconnection of the shorting section will switch the power, replace teh component in question. Hope you try. Good day
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
Something has shorted in the set causing the power supply to make that buzzing sound. Most likely the short is in the horizontal circuit. The horizontal makes the high voltage work which in turn lights the picture tube.
To save battery power, the camera automatically goes into sleep mode and the monitor turns off if there is no operation after 3 minutes when the camera is turned on (when the lens cover is open and the monitor is on). No picture is taken even if the shutter button is fully pressed in this mode. Operate the zoom button or other buttons to restore the camera from sleep mode before taking a picture. If the camera is left on for 15 minutes, it automatically turns off (the lens cover closes and the monitor turns off). Press POWER to turn the camera on.
The main two causes for this, are the inverter, which supplies the screen with the proper amount of power in order to function correctly, or the screen. If the inverter isn't puting out enough power it will cause the screen to darken or black out completely. Start by checking the screen connections. If all the connection are properly seated, the it's either the inverter or the screen it self.