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#41 |
Badcaps Veteran
Join Date: Jun 2014
City & State: Overijssel
My Country: The Netherlands
Line Voltage: 230V
I'm a: Professional Tech
Posts: 1,907
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![]() The tabs on the side are "COF" chips. Chip on film. They got the same kind of function as the ones on top.
If the ones on top fail you usually get vertical lines , applying some pressure on the tabs make the lines go away ( temporary ). When the side tabs fail you get horizontal lines or no picture at all. What you need to do is apply pressure on the side tabs/panel , probably the one on top of the side tabs. Maybe bend the tabs with your finger. The bezel itself probably bends the area of the failed COF. Dont they get hot? It is something you need to figure out yourself....it is not measurable. If you remove the failed COF chip the picture will be ok and you can do it while the tv is on. It looks like a curtain that opens... very cool to watch Last edited by Moreno83; 10-20-2017 at 12:29 AM.. |
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#42 | |
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Join Date: Nov 2016
City & State: winnipeg
My Country: canada
I'm a: Knowledge Seeker
Posts: 32
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#43 | |
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Join Date: Nov 2016
City & State: winnipeg
My Country: canada
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#44 |
Member
Join Date: Nov 2016
City & State: winnipeg
My Country: canada
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![]() yeah im leaning toward the tab itself...i'll be back at it tonight...i really need another set of hands in here to hold the set while i test stuff....60 with no stand is tough with 1 person in a crowded garage lol..
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#45 |
Badcaps Veteran
Join Date: Mar 2011
City & State: Muskegon, Michigan
My Country: United States
Line Voltage: 120VAC 60Hz
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Posts: 1,026
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![]() Really need to lay it flat on it's back so you can easily do this by yourself. Table is necessary or bench.
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#46 | |
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Join Date: Aug 2016
City & State: N tonawanda ny
My Country: united states
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#47 |
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Join Date: Nov 2016
City & State: winnipeg
My Country: canada
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Posts: 32
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#48 |
New Member
Join Date: Feb 2019
City & State: Vega Alta
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![]() I have the same problem here see picture below. I replace the tcon board and still with the horizontal line. Any suggestion?
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#49 |
Badcaps Veteran
Join Date: Jul 2015
City & State: Kanata Ontario
My Country: Canada
I'm a: Knowledge Seeker
Posts: 2,611
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![]() it is likely a "panel fault" related to the bonded tabs. If the set has tabs along each side, you could try gently pressing on the tab associated with the line to see if things change (unlikely but never know). If it does, then possibly putting some pressure padding on it, may help. If not, then there are plenty of posts about this type of failure whereby people removing the tabs along the bad side... NOTE: this process is a "one way" method and can not be reversed so be sure to read, read, read before going down that route to make sure that you understand your problem and possibly alternatives (if any) as tv designs are different across various sets / types / makers.
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#50 |
Member
Join Date: Aug 2014
City & State: port clinton, ohio
My Country: usa
Line Voltage: 120vac 60Hz.
I'm a: Professional Tech
Posts: 25
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![]() These don't have a metal frame retaining the panel just outer bezel plastic holding the panel. usually moisture or cleaning fluids get under the bezel and mess up the connections, Last week I fixed a UN50EH6003f that had bars-- I found corrosion on one of the bottom drive strips. I scrubbed the strips with 91% Alcohol with a toothbrush while leaving the set on it's back with the bezel removed. after it dried I tested it running without the bezel and all was ok after 2 days on.
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#51 | |
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Join Date: Oct 2017
City & State: sudbury ontario
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#52 |
Badcaps Veteran
Join Date: Nov 2015
City & State: BC
My Country: Canada
I'm a: Knowledge Seeker
Posts: 1,006
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![]() Vertical lines are panel faults and typically not repairable. Horizontal lines may be repairable if one side is good (confirmed with the bad side disconnected) using the tape cutoff method.
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#53 |
Badcaps Veteran
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
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![]() You have to do testing to know for sure, I just had a couple bad caps and it presented just like a screwed up panel.
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