Re: Sharp LC-70uq17u 3-4" vertical black bar
The exterior looks scuffed in that location, so it was probably dropped. I'm not sure if the other end is "clampable", I haven't taken it apart that far yet. It appears to be routed to the front, so possibly the panel itself? Are those typically "clampable"? If so I think I could replace that whole board? Is it impossible to repair ribbons? My father is an electrical engineer, with access to plenty of fine intricate tools, just not sure if it's even possible.
I'm gonna live with...
jrobie79
Member
Last Activity: 11-06-2017, 10:17 AM
Joined: 01-07-2015
Location: Charlestown, MA
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Re: Sharp LC-70uq17u 3-4" vertical black bar
Found the culprit... Bottom board ribbon cable is fubar... Is this replacable? The ribbon is integrated with the board (on this end), any chance I can replace that whole board and the other end is removable?...Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
Everything framing wise is still in place. The only thing removed is the back cover. When I discovered the other side of the t-con ribbons the side that had no picture issues was white, but the connected side (black bar) did not display haha the sharp logo and was flickering a whitish color. I'll try to get a couple pics of that as well.Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
So I disconnected the ribbon cable from the bottom board to side board. That side is no longer white (T-Con board still disconnected on that side) however there is a uniform "glow" that appears to extend all the way to the edge, no clear black bar. What board should I be looking for damage/issues on? The side? If the bottom, can I flip the tv upside down for a bit to get at all the screws to look at the bottom board or will that damage the panel?...Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
I have plenty of time, it's just a garage TV, so I can probably tolerate the black bar even if I can't get rid of it. Mostly there's a ball game on, or I pull up youtube videos if I'm working on the car to see how some stuff is done. It's still vastly superior to the old 40" I had in there, too damn small. I'll take a look when I get home from work.
It's just so hard to have a good view of all the bottom boards because its so damn heavy. I checked the right side edge boards connecting ribbon cables...Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
So this is what happened when I unplugged the left side (looking at the board) tcon ribbons.
Looks like the issue is the panel huh? Oh well, it was worth a shot....Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
I'll advise tonight on what I discover....Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
yes thats the flash from my cell phone camera, or its a magentic drop light attached on a car on the lift behind me taking the picture. I probably could have found a better picture to show the black area...Leave a comment:
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Re: Sharp LC-70uq17u 3-4" vertical black bar
I'm gonna take the TV down and check tonight. Any product you recommend for cleaning or just some air in a can?...Leave a comment:
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Sharp LC-70uq17u 3-4" vertical black bar
Client from work was getting rid of this TV because she said it had a 3-4" black bar on the right side of the screen, top to bottom.
I replaced a few boards in my old Panasonic plasma, so I took the back off to look around and noticed one of the grounding screws in the video board was missing, I optimistically thought this was the issue, slapped a new one in and tried it out. Black bar is still there. Any recommendations? Is this beyond repair (panel issue)? Or is there something specific I should be looking for/board to replace?
Picture below:
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Re: TC-P50GT50 won't turn on
Everytime it's happened I've never had anything but my cable box plugged into an HDMI port. I had an old super nintendo hooked up once, but that was with the old school component cables - it's not an HDMI source. I guess it would be cheap insurance to change the cables - are there recommended brands? It was my understanding that all HDMI cables were more or less identical - transmitting digital signals so none of the analog cable technology mattered....Leave a comment:
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Re: Repaired main board - steps to prevent recurrence?
so I had my main board repaired by PTS electronics - super fast btw...before I pop that in, I wanted to check if anyone knows any of the other boards in the TV that could be causing the main board HDMI inputs to blow?
I'm at a different apartment now - I think the wiring is better, and there's an amplifier installed on the coax in from the street with a ground ( I don't know if my previous coax was grounded). Could it have been just shitty luck with multiple lightning storms that caused it to blow every time...Leave a comment:
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Plasma Board Condition - help
So I've been dealing with my panasonic plasma (2012 TC-P50GT50 woes for awhile now; gone through 4 main boards, always the same issue, ONLY the HDMI ports die, coax/component in have worked fine...see thread:
[url]https://www.badcaps.net/forum/showthread.php?t=51318[/url]
So I utilized the PTS electronics board repair for my main board as mentioned in the above thread...however when I was hooking everything up I figured I'd give the other boards a look and found that the TNPA5670 board looked like this (pictures below).
Is this board toast? It looks like...Last edited by jrobie79; 07-08-2016, 05:34 PM. -
Re: TC-P50GT50 won't turn on
right now on eBay theres only one main board for all the GT50 models, and its like $250...I'll look into the rebuild service. thanksLeave a comment:
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Re: TC-P50GT50 won't turn on
bump
another quick question, are the GT and VT main board compatible? Having trouble locating a new gt50 main board, of any size, 50", 55", nor 60" and was wondering if I could expand my search to the VT boards without a problem?Leave a comment:
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Re: TC-P50GT50 won't turn on
anyone know if theres a way to test the main board and diagnose the busted component?
my father is an electrical engineer, so he has access to a bunch of equipment regarding board diagnoses/repair, just want to see if its feasible to text/fix an old board rather than buying another replacement on ebayLeave a comment:
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Re: TC-P50GT50 won't turn on
no, i plugged the HDMI into position #1 after I mounted it on the wall (just moved into a new place) and i had everything all set up. Turned the TV on, waited for picture and it gave me the no input error message boxLeave a comment:
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Re: TC-P50GT50 won't turn on
the whole board isn't dead tho, just the HDMI inputs. I can still hook up my cable box with coax, video component cable, or the standard red, white, yellow cables. I can utilize all those connections on 3 of 4 boards. the 3rd board (one previous to the one currently installed) was completey dead - TV wouldn't even turn on.
The 3 boards that semi-function I can still watch internet content (youtube, amazon, etc.) or cable via the connections mentioned above, it's just the HDMI ports....so damn frustrating.
edit: this has happened...Last edited by jrobie79; 02-23-2016, 12:04 PM.Leave a comment:
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Re: TC-P50GT50 won't turn on
welp, HDMI inputs shit the bed on the "new" to me main board....this is the 4th main board, and I can confirm on 3 the HDMI outputs went, all 4 of them....the 3rd I'm not sure cause the TV would never turn on, but the board was bad.
The suffix numbers matched on the 1st 3, and it was different on this one, but it was running for a little, so I can't really narrow it down to the incorrect board suffix number.
My question is, does this sound like a mechanical failure on the board? Solder trace/fuse/cap/resistor that...Leave a comment:
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Re: TC-P50GT50 won't turn on
found a killer deal on a main board on ebay....was worth it to buy it blind...popped it in, TV works. 4 main boards so far during this TV's life...I should buy them whenever I see them cheap enoughLeave a comment:
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