Power Supply output voltages?

[p_vander]

I found an RCA flat panel down by the dumpster of my apartment building this afternoon that is missing both its back panel and its power supply.

It's an RCA L26WD14 and from searching it takes a JSK3320-007B power supply.

Does anyone know what the output voltages and currents from this power supply are supposed to be? From what I can deduce from the connectors, there are two output voltages (I'm guessing one for logic boards and another for the backlight).

The connector has red, black, white and blue wires on it. I am assuming black is ground. The blue wire is small and appears to be a signal wire to turn the supply on. The white wires are slightly larger than the red ones, so I am guessing the white ones are for backlight and the red ones are TTL.

Does anyone have any insight on what the output voltages are supposed to be? I don't want to just go hooking up a bench supply until I know for sure what I am supposed to be putting into it.

[Jeffhs]

Originally Posted by p_vander

I found an RCA flat panel down by the dumpster of my apartment building this afternoon that is missing both its back panel and its power supply.

It's an RCA L26WD14 and from searching it takes a JSK3320-007B power supply.

You should be able to find a power supply for this set, if it is the kind of supply I'm thinking of (external to the TV and looking like a brick). Have you tried doing a Google search for this supply, using the TV's model number as a keyword?

The missing back panel makes me think someone may have tried in the past to repair this TV, without success. Even if you do find a power "brick" for it, this set may not work -- properly or at all.

Given the throwaway nature of today's flat-screen TVs, I wouldn't be surprised if your set was put out by the dumpster just because it quit -- the owner didn't know how or why, he just wanted it out of the house when it stopped working. (The same thing happens in the US all the time, not just with FP televisions, but just about everything else when whatever it is fails).

The owner may have deliberately omitted the power supply to eliminate the possibility of someone picking up the set, turning it on, and perhaps being greeted by smoke, sparks or worse. This is why, in the NTSC analog days, many old TVs were put out on curbs and so on with their interlock cords cut off -- the owners did not want people picking up these sets and possibly being shocked or injured because of the problem that caused the owner to discard the set in the first place.

[p_vander]

The power supply is an internal one, that's how I was able to figure out the colours of the wires on the connector that would have plugged in to it and then guess as to what they may be.

I've already googled the model number of the set, which is how I was able to get the part number for the power supply. Pretty much every place I've found it listed says that it's out of stock or discontinued.

I found one on Ebay for $49, but like you said about its condition and the fact that someone else gave up on it, I don't want to spend that kind of money only to find out it's dead.

Given that the power supply is a discontinued item, I am hoping that whoever had it previously determined it was the power supply that was bad, couldn't find a replacement and then threw it out sans power supply and back panel.

If it does indeed turn out to be dead, then it'll just get cannibalized for components