Question about Televison & Video
Power cord was lost in move. What kind do I need? The back of the tv says TFT-LCD TV. power: DC 12v/4a
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Posted on Jan 02, 2017
If anyone would like a Power adapter for their Ultra LCD30-500 and LCD40-500 - please email me Acosta.firstname.lastname@example.org... And I’ll be able to order one…
I too own a Ultra Lcd40-500 HDTV. Bought it from HSN.com back in 2006.
My power adapter burned out 2 weeks ago, and to my dismay PWW, or should I say POS has gone bankrupt.
I looked everywhere online and here in San Jose,CA thinking I would find a replacement or at least someone that could repair the blown capacitor( 630v vpmm), thermitors(IRFD460A) and varistor( SCK206).
After calling every power supply company, distributor, and retailer, had no luck finding a match to this crazy looking 9din pin adapter. Disappointed I gave up on a replacement and took it to various repair shops for repair and was told without schematic would be nearly impossible to replicate the power Output. Finally this one shop was able to replace the burned out components and it seem to work at the store. When I got home with it..no luck..red light would come on…but no light on screen. L
Not wanting to give up or trash my LCD. It was time to dig further…I did some research through my employer; a SemiConductor company here in Santa Clara, CA.
Needless to say this power adapter has driven me crazy….It has been exhausting... But finally just yesterday I got the break needed…I found a manufacturer in Taiwan that has these power supplies for both the Ultra lcd 30" and 40". I was told they only sell to Component or Electronic Suppliers. I’ve asked my employer to see if I would be able to order one on their behalf using their account.
Happy ending! My power supply is on it’s way. I was told it could take up to 4weeks for delivery. But I’m just glad to have a replacement.
Posted on Aug 15, 2009
The power source is a 12 volt transformer so you can use a standard universal power supply. A 12 volt DC Power Cord with Auto Cigarette Lighter type Adapter will work in an auto.
Posted on Dec 23, 2009
Either you can get this universal type available inthe market in any electronic spares store or it is easy too make one by yourself if you are familiar with electroncis.
All you need is a mains transformer with secondary voltage at 12 volt and 4 amps capacity, use a bridge rectifier , good storage capacitor of about 4700mfd/25 volts and if possible use a 12 V regulator so that the power is smooth, regulated and protected..
Posted on Sep 24, 2010
Your back light is probably out - it may have a bad inverter. Shine a flashlight on the screen and see if you can detect any color or images. If so, then the back light is out. Inspect the inverter for any bulging capacitors. They must be flat on top - if they bulge at the top, then that capacitor is bad.
Posted on Dec 12, 2010
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