| TV repair |
[Aug. 5th, 2008|02:13 pm] |
| [ | mood |
| | annoyed | ] | My LCD TV (30" Oleiva Syntax, five or six years old) has up and died on me. There was a loud pop, and the screen went black. The LED that indicates power turns on and off with the remote, but the screen shows no signs of life.
Anyone know what that's likely to be, or if it's likely to be repairable?
Edit: Norman's, the go-to electronic repair guys in town, say they have little luck getting parts for Syntax, and that a repair will run $300-400 and up. For that, I can just about replace it with a newer unit with a warranty. |
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| Comments: |
Could be a cap or other component that failed. Pop the cover off and look for the higher voltage components and see if there's an obvious part that's scorched or burnt. If there is, and you're handy with a soldering Iron, you might be able to find a replacement that's in the same tolerance range and replace that component. I fixed a Macintosh SE/30 that way years ago. The analog board had a component or two that would fail after 5-6 years of use. In my SE/30's case, it was on more or less 24/7.
No obvious scorch marks or bad smells. The good news is that I managed to get the TV taken apart and put back together without any parts left out or left over.
The analog electronics here (if there are any) are going to be different, of course; it's an LCD instead of a CRT. Still, didn't go through the case poking capacitors for fun.
Yeah, I remember those compact Mac cases; you helped me up my Plus from a meager 2.5 MB of RAM to a monster 4 MB ... I got pretty handy at the "slap and snatch" method of opening those cases.
I still have my Plus, by the way. I'm planning to get it back up and running, if I can ever find an external SCSI-1 case. Boy howdy, did the kid at Fry's look puzzled at that request.
You were right, BTW. It appears to be an analog part, specifically the inverter board, probably one of the transistors on it. There are no obviously burned out parts, so i'd have to diagnose the problem, which would involve a multi-tester and skills I don't have, and then desolder and re-solder on a transformer, which I've never done before, but i could fake it.
It's a back-burner project for now. | |