The 12 V DC power polarity to a flatscreen TV was unfortunately reversed
The TV does not now function and I would like to know if anything can be done to repair it or is all lost
Thanks
Mike
The 12 V DC power polarity to a flatscreen TV was unfortunately reversed
The TV does not now function and I would like to know if anything can be done to repair it or is all lost
Thanks
Mike
Someone will get back to you just as soon as the crack sci.electronics.repair mind-reading team gives the make and model number to the crack sci.electronics.repair diagnosis team.
Ok Its a Bush LCD 15DVD008
Thanks
How in the bloody hell do you reverse the polarity on that? Did it not come with plugs and adapters that prevent such lunacy? You may luck out with an internal polarity protection device and a fuseable something or other or you may have done greater, more costly damage.
Did the original power supply burn up, and you just found this one with the right plug on, and assumed it would be right, by any chance ? I've seen it happen a couple of times. Most of those Bush models have a polarity protection diode right across the power socket, and it fails short circuit.
Arfa
It could be a very simple fix, or it could be completely junked, but unless you have some electronics knowledge there isn't anything you can do yourself. Best suggestion I can give is take it to a shop and get it looked at.
Do you have any electronics experience, such as with a multimeter or oscilloscope?
H. R.(Bob) Hofmann
There are basically 2 possibilities:
(1) Maybe it blew a fuse and/or a few components in the power supply and nothing else.
(2) Or maybe all is lost.
Depends on the power supply circuitry.
Its the same size but is clear plastic with the leads colored red as they enter the plastic Cant see any bands in silver or black I could email you a photo if you wish then I can be sure it is the same thing
Mike
I don't think that this sounds like what we are looking for. By all means e-mail me a photo if you like, and one of the whole lower part of the board as well. If you do them in a reasonably high res and Jpeg or PDF them, I should be able to zoom up on them pretty well to see if I can remember where the diode was, and spot it. BB connection here, so no issue with size up to mailbox capacity - say 8 meg to allow for other stuff that might be in there.
Arfa
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