I found the manual for a slightly different model but the procedure requires you to be able to access the menus anyway so I wouldn't be able to perform it.
Thanks a lot for your help anyway
I think this one will be a real rabbit hole.
Logic West
Member
Last Activity: 11-19-2024, 11:03 PM
Joined: 10-08-2018
Location: Perth WA
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Re: Sharp LC-60LE650X - Temperature warning
I found the manual for a slightly different model but the procedure requires you to be able to access the menus anyway so I wouldn't be able to perform it.
Thanks a lot for your help anyway
I think this one will be a real rabbit hole. -
Re: Sharp LC-60LE650X - Temperature warning
The boards don't get hot in standby. Cooling the mainboard didn't affect the symptom
I guess it must be either a broken connection or a faulty sensor. Do you think there is any chance that it needs to be reset to factory defaults if there is such a thing with TVs?Leave a comment:
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Re: Sharp LC-60LE650X - Temperature warning
The fact that the problem started only after the TV had been unmounted and remounted to the wall made me think that something physically must have been damaged or dislodged. I looked over all the boards for anything resembling thermistors or sensors attached to heatsinks but I can't find any. SMT thermistors just look like resistors anyway so not easy to find them without a schematic.
Perhaps the TV flexed and a trace was broken or a SMT chip pad became disconnected. I'll put the boards back in and do as you say, it's a good...Leave a comment:
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Re: Sharp LC-60LE650X - Temperature warning
Never mind, I couldn't find any sign of liquid on the inside of the rear cover. It looks like the liquid under the BGA ship is just liquid that has leached out of the big thick thermal pad and it has come through the vias and onto the balls. I doubt that liquid is electrically conductive.Leave a comment:
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Re: Sharp LC-60LE650X - Temperature warning
I have a proper sweep freq ultrasonic cleaner that I use for macbook logic boards. Can you think of any reason why the tcon board shouldn't be cleaned in the same way? I'll fire up the heater now cos the tank takes a couple of hours to heat up.Leave a comment:
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Re: Sharp LC-60LE650X - Temperature warning
Hi,
I took a pic of the rear but where I have the TV, the lighting is not great for photos so I took each board out and snapped them individually. I'm not sure which number on it is the p/n.
Incidentally, I noticed that there appears to be some liquid running under the large BGA chip on the tcon board. I wonder if that is the source of my problems. That chip has a really thick thermal pad to couple it to the metal chassis of the TV so it must generate some heat.
Thanks for your attention...
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Re: Sharp LC-60LE650X - Temperature warning
Does anyone know if that kind of error message could be from one of the boards other than the main board overheating? I mean, could the power supply board or the t-con board overheating generate that error or would it be something on the main board overheating?Leave a comment:
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Re: Sharp LC-60LE650X - Temperature warning
Hi Chris, there is no fan in this model. At least I can't see one. I have a sharp parts guide for it and I can't find a fan listed in there.Leave a comment:
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Sharp LC-60LE650X - Temperature warning
Hi,
I have a TV with the following symptoms:
When powering on with the remote, it turns on and displays a warning msg in the bottom right corner "Temperature", then immediately goes back off.
It was working fine until it was removed from the wall for painting and the fault started after it was put back up.
I have removed the rear cover and inspected all the boards. The only thing that I could see that looked like a problem was the heatsink on the main board, which I think Sharp refer to as "main unit". It is soldered... -
Re: New Members - please post your introductions here
Hi, my name is Alex. Most of my work involves fixing macbooks or logic boards. I found this great forum when looking for information about how to fix my TV. I think I will be spending a lot of time here
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