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Test Equipment Anonymous (TEA) group therapy thread

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Vince:
TV REPAIR


--- Quote from: Vince on July 06, 2022, 05:58:52 pm ---

Still, it does not explain why that bad string can have zero voltage when it's in // with the other one tat gets 1230V....
I just checked the solder joints of the connector on the power board, they looked good. Reflowed them anyway, still no joy.

Makes no sense. See picture below. There big fat traces on that connect pins 1 and 3 and 2 and 4 to // the strings. How can have 130V on a set of pins and zero (well, 1.5V right now.. better than nothing I guess !) on the other set of pins....


--- End quote ---

OK, powered up the TV, not much exposed metal at the back of the connector on the pwoer board, but with the sharp probes I managed to get contact.

Verdict : I DO get power on both strings...so no problems with the tracks and solder joints on the connector, board and its connector is fine.

However I do NOT get power on the mating connector that's mounted on the chassis !

So, a dodgy connector, my luck...  :palm:

Cubdriver:

--- Quote from: Specmaster on July 06, 2022, 06:33:20 pm ---
--- Quote from: factory on July 06, 2022, 06:26:20 pm ---And a not so clean HP DMM on ePay, nice!  :-DD
https://www.ebay.com/itm/225062710116



David

--- End quote ---
Oh yuck, I hope that cleans up OK, it would never grace my bench that's for sure  :-DD

--- End quote ---

Damn you guys!  I'm a sucker for a basket case...   :palm:   |O

-Pat

Zucca:

--- Quote from: Zoli on June 30, 2022, 09:08:18 pm ---
--- Quote from: mnementh on June 30, 2022, 06:48:43 pm ---
--- Quote from: Zucca on June 30, 2022, 06:35:07 pm ---spotted two UPS 5000W pure sine with network management cards in the company dumpster...

sooo temping... but alone it is impossible, they are heavy as fuuuuuuuuu
--- End quote ---

Go to Harbor Freight, spend $40 on a hand-truck. Problem solved.

Oh yeahhh... dumpster. Bring hand tools. Remove the battery cartridge(s) and handle separately.

mnem
Been dere, dunnat, aching back tomorrow. ;)

--- End quote ---
Theoretically, the UPS's should be already without the batteries; or in the states you just can throw the SLA's away in the community garbage, together with electronics?

--- End quote ---

could not resist, it WAS in the electric waste dumpster.
Batteries were still connected at 51V holy crapppp....

>40LBS crime.

Vince:

--- Quote from: Specmaster on July 06, 2022, 04:24:34 pm ---
--- Quote from: Vince on July 06, 2022, 04:04:32 pm ---TV REPAIR


--- End quote ---
Make sure if you are able to resurrect the other strings, that your friend is well aware that he might actually spot areas of his screen that are dimmer than others, in the areas with the dead LEDs, otherwise he might not be happy with you. Short of replacing all the strings, I can see no way around that problem. Great work so far, keep it coming.

--- End quote ---


Well yes if I manage to fix the thing I will see if the lighting is even enough to be acceptable, i fnot will tell him what he wants to do.

Hopefully there WILL be dark spots and he will tell me OK fuck you can keep it... more spare boards/parts for Vince !  >:D

We shall see.

I don't know where to buy the strings nor how much that costs. If it's available for this particular TV, and is ridiculously cheap including shipping... like 20 Euros shipped, and given the TV is recent, maybe he will want to pay for that. We are not there yet....

Vince:

--- Quote from: Cubdriver on July 06, 2022, 06:42:59 pm ---
--- Quote from: Specmaster on July 06, 2022, 06:33:20 pm ---
--- Quote from: factory on July 06, 2022, 06:26:20 pm ---And a not so clean HP DMM on ePay, nice!  :-DD
https://www.ebay.com/itm/225062710116



David

--- End quote ---
Oh yuck, I hope that cleans up OK, it would never grace my bench that's for sure  :-DD

--- End quote ---

Damn you guys!  I'm a sucker for a basket case...   :palm:   |O

-Pat

--- End quote ---

Well someone needs to rescue this little thing... give us a shout when you get it !

Just needs a bit of a clean, come on !  :-+

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