Hi,
I have a Sharp Aquos LC-70LE600U LCD tv. It was purchased in 2013 (I think).
* For about the last year or two, it has the faded triangle in the lower left corner.
* For about the last six months or so, it randomly makes clicking sounds but everything continued to work.
A couple nights ago, it shut off on its own... several times in a row. After five or six times it just simply would not turn back on. The tv has already been replaced, but I want to see if I can get it working again.
* Absolutely nothing happens when you press power.
* When you plug it in, the chevron light comes on for one second then goes out.
* Nothing on any of the boards makes any kinds of noises whatsoever when plugging it in or pressing the power button.
I pulled the cover off and this is what I've found:
* On the PD plug on the power supply board, pin PD-15 BU5V has the required 5 volts.
* No other pin has voltage.
* Pressing the power button does not pass the 5 volts to the pin PD-14 PS_ON.
Over on the main board, if I jump those two pins (easier to do on the main board), I get appropriate voltages on the other pins EXCEPT FOR:
* PD-1-2 PNL 12V ---- has 0 volts
* PD-16 PNL_POW ---- has 0 volts
I simply do not know where to go from here!
As soon as I post this, I will go take pictures of the configuration of the boards in the tv as well as of each individual board and post them.
I have a Sharp Aquos LC-70LE600U LCD tv. It was purchased in 2013 (I think).
* For about the last year or two, it has the faded triangle in the lower left corner.
* For about the last six months or so, it randomly makes clicking sounds but everything continued to work.
A couple nights ago, it shut off on its own... several times in a row. After five or six times it just simply would not turn back on. The tv has already been replaced, but I want to see if I can get it working again.
* Absolutely nothing happens when you press power.
* When you plug it in, the chevron light comes on for one second then goes out.
* Nothing on any of the boards makes any kinds of noises whatsoever when plugging it in or pressing the power button.
I pulled the cover off and this is what I've found:
* On the PD plug on the power supply board, pin PD-15 BU5V has the required 5 volts.
* No other pin has voltage.
* Pressing the power button does not pass the 5 volts to the pin PD-14 PS_ON.
Over on the main board, if I jump those two pins (easier to do on the main board), I get appropriate voltages on the other pins EXCEPT FOR:
* PD-1-2 PNL 12V ---- has 0 volts
* PD-16 PNL_POW ---- has 0 volts
I simply do not know where to go from here!
As soon as I post this, I will go take pictures of the configuration of the boards in the tv as well as of each individual board and post them.
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