Re: Sharp TV LC-40LE820X Shutting off on TV function.
In the end this sets behaviour was just erratic, so I took it to a local repair bloke: He diagnosed the motherboard as the fault, and not the PSU as suggested by you guys.
But long story short, apparently that exact board isn't available, so there is a superseeded number, he got that in, and it wasn't "suitable."
So I'm out $50, but I'm more than happy with that. I could've messed around for hours (more than I already did) and come up with the same result.
But, I would have liked...
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Re: Sharp TV LC-40LE820X Shutting off on TV function.
Thanks for that.
I have no voltage across two capacitors: 7800A and 7800B, are these what you mean?
As for R7816, that resistor is half under a heatsink for some transistors/regulators. I guess I should remove the board and probe it from the other side?...
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Re: Sharp TV LC-40LE820X Shutting off on TV function.
Hi all. Apologies for slow reply.
Please see attached pic of main power board. I'm yet to test the TV using a HDMI source to see if the behaviour is replicated, I know it's ok running pictures of a Hard disks, but I'm not sure about HDMI, so I'll try that.
Thanks....
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Sharp TV LC-40LE820X Shutting off on TV function.
Hi guys I have a sharp LC-40LE820X, and the main power board is a DPS-126CP B.
Back ground info, is the in-laws bought this TV new for the London Olympics IIRC, so around 2012.
When on TV function, after a period of time (20 minutes or so) the picture becomes choppy, then appears to turn off: When I try to turn it on it then has a warning similar to "service has been changed, execute auto install".
But I can display pictures from a usb on rotation for hours on end.
Given this, I suspect a power supply issue: Does this sound...
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Re: Sharp aquos LC-40LE810E
I've just brushed the dust off: It appears C7813 s cracked.
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Re: Sharp aquos LC-40LE810E
Hi guys I have a sharp LC-40LE820X, and the main power board is a DPS-126CP B.
I can display pictures from a usb for hours on end.
When on TV function, after a period of time (20 minutes or so) the picture becomes choppy, then appears to turn off: When I try to turn it on it then has a warning similar to "service has been changed, execute auto install".
I suspect a power supply issue: Does this sound right?
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