Problems with a TV

[moonpie23]

got online and looked up some techie forums. It seems as though this particular model was prone to faulty INVERTER BOARDS. I ordered 4 of them from a tech warehouse place as this TV is no longer manufactured nor supported.


here's the main board - you can see the 3 inverter board protection shields on the left - there are 6 total for the TV, but there are only 4 numbered boards. I bought all 4 for $280 in hopes that it would be just one. I began removing and replacing one at a time (20 mins each) until i hit the correct board (4 boards)

Attachment 2834

here's with the back removed ( 40 mins work)
Attachment 2832

The screw-keeper-upper-dishes
Attachment 2833


2nd down on the right.

Attachment 2836



and i FIXED it...i'm slightly technically inclined (mechanical engineer) but i've also gotten into electronic stuff over my head and had to have a pro save me...

..i know this post is geeky, but i felt pretty good fixing my $3k tv for less than $300....


patting myself on the back..

[hurleyfor3]

Who the hell changed the thread title so that my original post doesn't make any sense? (Cue the "that just makes it like every other post you make" comments.)

[OZZIE4DUKE]

here's with the back removed ( 40 mins work)
Attachment 2832

The screw-keeper-upper-dishes
Attachment 2833


2nd down on the right.

Attachment 2836

Congrats on fixing your TV! But your links don't work! Got an error message when I clicked on each one.

My 1996 Sony 27" XBR tube TV died when I turned it on last week. I took it to a repair shop in Goldsboro for analysis - only charged me $20 to diagnosis the problem, which amazed me for being so cheap. Repair cost for some transistors that failed, and the loose solder connections that caused them to fail, $125 less the $20 fee already paid. But I'd still have a 16 year old TV, so I replaced it with a 32" Vizio that I got on sale at Big Lots on Saturday for $200!

[moonpie23]

that's odd...when i click on them, i see the photos....

[moonpie23]

what happened? someone changed the title of my thread and deleted the photos...

sheesh...

[cspan37421]

TV repair is just about a quaint recollection of a bygone era. Nevertheless, I do recall going through [what I would guess was] something similar maybe a dozen years ago with a Samsung TV. It was a flat screen but not one of the thin LCD or plasmas. Anyway, it occurred under extended warranty (thanks, Visa Gold!) and a guy came out. He removed a few screws and then the entire plastic shell just lifted off the base, leaving a big glass screen and some circuit boards extending to the rear. The repair guy inspected the circuit boards and quickly spotted a hairline crack in one of the soldered areas on one of the boards. A tiny bit of solder and voila, the TV was fixed ... and it still works today (though it's a secondary TV now).

It just struck me how relatively simple a problem it was. No knowledge of the transistors or capacitors or whatever was needed. In essence, it was just a broken electrical connection on what was then a several-hundred dollar TV.