Did the TV on the wall die already?
Its plugged in and I’ve tried the power button several times, but it still remains unconscious…
Anyone know anything i don’t?
I was confused about it as well the other day when I came in to clean. I held down the power button and it came to life but I had a moment of worry about it dying as well.
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If we find out it is on it’s last leg we can start talking about replacing it. Thankfully they aren’t that expensive.
I wondered about it the other day as well but holding power button seemed to do the trick.
Yeah it is getting worse than when we first got it.Used to work on the second push.
I’m wanting to say that the fact that we had to use a random power cord to plug into it that this may be part of the issue. Really wish we knew where the original cord for it was.
Last Monday I found that the cord was loose (at the TV connection) and plugged it in better. You may want to check that each time you want to turn it on.
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Let’s start watching for sales on TV’s just to have a backup plan.
It sure was handy for Chromecasting the Shapeoko class today.
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I enjoy the photo stream on it, as well as the ability to pull up music and YouTube (when it does not bother others in the room).
Its purpose was multi-fold; to showcase what we do in CA, would love more projects, instructors bios of what they teach and upcoming classes.
Also, as you say great for teaching classes.
Probably time to recap the power supply. It’s about an hour job if the caps are in stock in the Electronics Lab. If not, a Tanner’s run is in order.
Is that something you could do?? Don’t tvs kill people? (In many ways I’m sure)
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It’s cake to do… I can do it one night this week if you can point out the TV to me - and if we have the caps in the Electronics Lab. If not, I’ll have to make a list for a Tanner Electronics run.
Go to Creative Arts room. Stand at door, look at opposite wall. It’s mounted there.
Thanks!
I’ll try to get up there tomorrow or Tuesday night. I need to go back to Vector and confirm a couple of readings on some coils and get part #s off of them to order some for my game that I’m repairing.
I have a 48" TV I have saving for electronics that needs to be capped. Been meaning to get to if for 6+ months. Would you be interested in doing it as well? Could make it a workshop class and get honorarium for it. 
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To do it as a class we’d need to put it on the calendar… I can do that for your TV and still work on the one for the CA room this week.
You want to put it on the calendar? I’m game… Let’s discuss a day to do that and when to take the thing a part before the class to get the caps for it.
You can still do it as a non-honorarium class with just 48 hours notice.
Is that something you could do??
One of the most common failures for LCDs is for the capacitors on the power supply and/or backlight to fail. These can usually be replaced for $10-15 and are fairly easy to do (disassemble back of LCD, locate swollen caps, find matching replacement, unsolder old one and solder new one in place. Lather, rinse, repeat until all are done.). It’s a good idea to inspect the circuit board for burned components before replacing caps.
Don’t tvs kill people?
Old CRT TVs had high voltage flyback transformers which generated 1000s of volts to generate the electron stream that made the CRT work. These used large capacitors which could hold a charge for some time even when disconnected from the wall and could injure the ill-informed. This is probably where your concern arises from.
LCDs don’t have this circuitry, but they DO still deal with mains (110V) power and should be treated with respect.
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Caps tested good and looked good physically. Re-soldered a bunch of cracked solder joints and the screws to mount the power supply board were extremely loose. I reassembled it, put it back on the wall, and it fired up with the first light touch of the power button
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