Log in

No account? Create an account
Previous Entry Share Flag Next Entry
Imminent Electronic Death
It looks like it might be the end-of-an-era for my big-screen television. I got it in early 2000, a Samsung 53" rear projection set. It was a really good deal at the time, one of those Internet bubble wonders where retailers were doing crazy things to get market share. I think I got the set for about $1200, shipping included. When it arrived, I was really happy with it. It had a large and very clear picture, and it line-doubled its composite input sources, eliminating the dark horizontal line problem that lots of other projection sets had. The only issue I had was that it didn't do progressive video, so I wasn't able to play DVDs at their highest resolution; it did progressive scanning of the picture, but only from its internal line doubler.

Within the first couple of months, I noticed an occasional spark and crack coming from the back of the set. From what I'd seen, this wasn't unusual as the various components got settled, but it still seemed odd. About six months into owning it, I came downstairs to find the unit playing sound but showing no picture. I turned off the unit and unplugged it, and when I tried it in the morning, things were back to normal. A few weeks later, this happened again, and again it came back to life. Another couple of weeks later, it died for good. I wanted to see what kind of damage had occurred, so I took off the back of the set, and then I noticed the puddle on the circuit board. Rear projection sets use three very hot CRTs, one for each color, and this set used a liquid coolant to keep these CRTs from overheating. Well, there was a leak which was letting coolant slowly drip out of the system and onto the main board. This was the source of the cracks, and eventually it caused the death of the components.

This happened about a year into owning the set, and I complained to Samsung. Eventually, they agreed to replace the parts, but the labor was up to me, and it ended up being about $600. Well, they replaced the main board, but they didn't do anything about the leaking coolant, so I had another shutdown a few months later. Suspecting the same problem, I did my own makeshift fix, setting up a paper towel inside the set to absorb the occasional drips before they hit any of the electronics.

Well, the set has worked in this configuration for the last three and a half years. I have had other weirdness, though. For about three months, the TV wouldn't accept remote control input, and then it started working again. However, the picture has remained good.

Tonight, I was packing for my trip and cleaning out the Tivo, I saw the screen go dark. I thought it might be a problem with the source material, so tried fast forwarding in my show, and the picture came back. Then it went out again, then it came back. This on/off pattern continued for about a minute, but then I saw it turn into a pattern of color and black lines before going dark.

I think the set might come back up after some rest; it had been on for several hours as I'd been going in and out of the room, a good scenario for thermal failure. I've not yet looked at the back to see if there's obvious board damage. However, I suspect that it's on its last legs. I won't be getting Samsung to pay for any parts with its age, and the labor costs have surely gone up, which means that a repair like my last one would be more expensive than replacing the whole unit. I must have tempted fate earlier today when I was at Costco and passed by their assortment of really cool HDTV sets and thought to myself that one of those would be nice, but I won't consider getting anything until my current set dies. I just didn't want it to happen right now.

  • 1
I used a Benq PB7220 a while back for a show, that I was really impressed with - Good clarity, plenty of input options, not difficult to change the bulbs on, and a helluva lumen output for something that small.

Best price I see on 'em right now is $1500 - I'd check and make sure it can do HDtv - I know it can do SVGA, S-video & Composite - and that the aspect ratio of the lens is good for your room....

I like some of the projectors I've seen, but I don't think it would work well in the main room. There's a lot of ambient light during the day, and there's no good mounting location for the projector. I'll certainly take a look at them; it would be useful to have a projector anyway for its portability.

You kept your medium-high-end technical components running for 3.5 years with... a paper towel.

Sorry. I found that greatly amusing.

A hacker does what a hacker does :)

I must have tempted fate earlier today when I was at Costco and passed by their assortment of really cool HDTV sets and thought to myself that one of those would be nice, but I won't consider getting anything until my current set dies.

Poor TV! It sensed that you didn't love it anymore. :-(

Seriously though, why not get a projection TV and make one of your walls a huge screen?

Liquid Projection Screen. Screen Goo is a water-based acrylic emulsion (aka paint) specifically formulated to create high quality video and film projection screens. There are different tonalities available to ensure an excellent match for any projector and it is easily painted on by homeowners, making it ideal for home theaters as well as companies, museums, television studios, educational institutions and houses of worship.

Goo Systems; U.S. Distributor: Visual Reality, LLC

It would be such a cool group project!

I'm not sure that a projector would work well in my main room -- as I noted above, there's a bit of ambient light in the day, and the layout doesn't leave a good place to put the projector. Still, I'll look into it before buying anything.

Let me know if you hold a memrial service for my West Wing friend. But, uh, how does one dispose of something that large?

And does it just need more juice, er, coolant?

Yes, disposal is something I need to research. I don't think those are counted in the "bulky item" pickup, but it might be something where I offer it up on Craig's List for any takers that want to try to revive it. It did come back up briefly this morning, but the screen blacked out again after a few seconds. When I looked at the main board, I think one of the caps has gone bad and there's a lot of coolant residue on the PC board.

  • 1