Re: Sharp LC-70LE600U Won't Turn On
So.... TWO MONTHS LATER.... I finally got the replacement led strip from China yesterday!
SUCCESS!!
TV is as good as new!
befuddled
Member
Last Activity: 11-13-2019, 05:46 PM
Joined: 09-01-2019
Location: Delaware
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Re: Sharp LC-70LE600U Won't Turn On
I don't have suction cups. I'm quite certain I'll be able to transfer the glass to a piece of rigid foam. And like I said, even if I do break it, I can part it out on eBay now that I know the PSB, main, and tcon are all good. A used working PSB goes for $150+, main board $99+, and tcon for $40.
I'll be as careful with it as I can because, quite frankly, I hate failing!
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Re: Sharp LC-70LE600U Won't Turn On
Thank you for that! I found a pretty decent how-to on the youtube that makes me think I can probably do the job. ([url]https://www.youtube.com/watch?v=TJUtrExz-aI[/url])
I have some rigid foam insulation that I can gently transfer the glass to rather than fully lifting it and leaning it somewhere (yikes).
I went ahead and ordered the strips for less than $16 (on a slow boat) from China.
If the repair is successful, at the very worst, I figure I could get a couple hundred bucks for it....Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
So setting the lamp error count back down to zero worked. I lugged the thing out of the garage, around to the back of the house down the hill and into the family room in the basement. Hooked it up to my system... very not impressed with tv's sound hookup options, mainly the lack of optical audio cable signal even though it HAS A PORT! But I digress. Anyway, within an hour or so, the faded triangle in the lower left corner doubled in size and the tv shut off. The good news is that it did start blinking a code. But since I was done for the day and...Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
LOL. I thought the 135 and 139 figures seemed a little odd to me! Glad someone else thinks so too!
I'll try setting the L ERR RESET to 0 first and test it. If it doesn't work, then I'll change those temp values. I will give these things a try and get back to ya!
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Re: Sharp LC-70LE600U Won't Turn On
So I just got into the service menu on the tv and I'm including a couple pics, one showing page 1 and one of page 9.
Can you guys take a look at the values on page 9 and tell me if they give any hints as to what may be wrong?
I see a "STANDBY CAUSE RESET" but that's the closest thing and it just says "OFF"
Oh wait... I just saw the NORMAL/ERROR STANDBY CAUSE lines on page 1. Those values seem logical to me as if there were nothing wrong?
L ERR RESET says...Last edited by befuddled; 09-05-2019, 11:48 AM.Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
I'd seen that thread but didn't notice the service manual links! Thanks for pointing that out! I will check those out later today.Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
SCRATCH THAT! I just got the K for the first time. Is there anything that can be done with that?Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
I'd seen videos showing this. No. I do not get a K in a box. This is an older tv so I don't know if that makes a difference. I believe it was purchased in 2013.
I wondered if that heated chip was actually normal, it's just that nothing else on either board (main or tcon (I go touching things on the power supply!)) get remotely close in temperature.
I don't have anything with which to freeze the eeprom.
The tv DOES stay on in service mode....Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
I did do a reset to factory settings. No change....Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
When the tv is forced to start, and the couple times it started on its own after being plugged in, it acts as though there is nothing wrong, it shows static, menu, etc....Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
Disconnecting the PL plug on the tcon also does not allow the tv to turn on.
Starting with the tv off, if I press and hold the power button and take a reading at pin PD-14 PS_ON, there is not change. It still reads 0 volts. You asked me to do this test.
The voltages in my post #16 are with the tv off (standby) followed by with the tv on after force starting it with input and volume down buttons. All readings while pressing and holding the power button and AFTER releasing the power button are identical to the tv being...Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
So today, twice, the tv has come on upon being plugged in (no buttons pressed) while several other times only flashing the chevron once. Not once has it shown any signs of life upon pressing the power button.
When pressing the power button, 0.0 volts at the pin PD-14 PS_ON. No jump/fluctuation. Nothing.
Here are the pins in numerical order, name/description, tv off plugged in, tv on.
PD-1 PNL12V, 0, 11.91
PD-2 PNL12V, 0, 11.91
PD-3-4 GND
PD-5 UR13.2V, 0, 13.17
PD-6 UR13.2V, 0, 13.17...Last edited by befuddled; 09-03-2019, 02:24 PM.Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
Sorry, I should've been more clear on this. The chip on the tcon board gets hot when I start the tv using the input and volume down buttons while plugging in the ac cord. Otherwise, just using the power button which does not turn the tv on, no, it doesn't get hot
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Re: Sharp LC-70LE600U Won't Turn On
My point is, if you want a complete list of the pins, labels, and voltage readings, then say so. Don't be vague and condescending....Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
So I'm guessing you're more interested in what their labels are? Because I'm pretty sure that by saying the rest of the pins have "appropriate voltages" I'm saying that if pin PD-X is labeled "LBL 13V" then I have 13 volts.
Listen, I'm not trying to be snarky. But please don't tell me "If nothing, get out your meter and do some measurement of the connector at the power board", which you said in your first post when I said I'd already done that followed by a vague (quoted) statement telling...Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
Ah... so you mean while I'm literally pressing the power button? Sorta like a battery load test in a car, test voltage while turning the engine over with the starter. I'll check that this afternoon.
As for the eeprom, is that on the main board or the tcon? There's nothing that looks like a large computer chip on the main board.
Also, the large chip on the tcon board gets really hot. Like, can't hold your finger on it for more than a second hot. Is that normal?...Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
Sorry, I've already done the unplugging-of-connectors test... each one individually with not one of them making a difference.
I've read so many threads that address similar symptoms but none that really solve my issue.
In my first post I included that all of the pins are as expected except for four, PD-14 PS_ON, PD-1-2 PNL 12V, and PD-16 PNL_POW which all have 0 volts.
But I don't know what that is telling me!...Leave a comment:
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Re: Sharp LC-70LE600U Won't Turn On
So I'd tried numerous combinations of buttons on the side held while plugging in to force the tv on to no avail. Well, I just saw a new combination I'd not seen before on another thread. Lo and behold, it turned on. If I turn it off, it won't turn back on again with the power button.
So I guess I'm sorta back at square one with a different angle of searching.
If anyone could steer in ANY direction, preferably the correct one
it would be greatly appreciated!
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Re: Sharp LC-70LE600U Won't Turn On
So here's the pictures...
better pics and more info can be provided if needed and any help would be GREATLY appreciated!!
(hopefully I've done this right
)...
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