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LG M4715CG / M4715CCBA back lite but no picture
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Curt Palme
CRT Tech



Joined: 08 Mar 2006
Posts: 24006
Location: Langley, BC

TV/Projector: All of them!


PostLink    Posted: Tue Sep 01, 2015 9:59 pm    Post subject: Reply with quote


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I've had a lot of system/controller board issues with all flat screens, been burned more than once buying boards to replace other good ones. I now usually scope the Tcon board for video signal input and output before ordering boards. IN fact, it's been about 6 months since I ordered a board, all the recent ones were capacitor problems, and with the low CL pricing now of everything, I throw out/recycle a whole lot more than I repair.
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AnalogRocks
Forum Moderator



Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Wed Sep 02, 2015 3:51 pm    Post subject: Reply with quote

Curt Palme wrote:
I've had a lot of system/controller board issues with all flat screens, been burned more than once buying boards to replace other good ones. I now usually scope the Tcon board for video signal input and output before ordering boards. IN fact, it's been about 6 months since I ordered a board, all the recent ones were capacitor problems, and with the low CL pricing now of everything, I throw out/recycle a whole lot more than I repair.


I bought another T-con board. The set didn't seem to like it. However. This monitor was left out in the rain or flooded so the contacts were a little dirty. All clean now.

I wish this were just capacitors.

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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Tue Feb 09, 2016 5:22 pm    Post subject: Reply with quote

I'll be getting back to this today. I bought an input board. Let's see how it goes.
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Tue Feb 09, 2016 9:04 pm    Post subject: Reply with quote

Swapped the input board, insstalled the new T-con board and it will now power up, says "Power Saver" and shuts down.

I do still have the right half of the screen looking odd. I think I'll try new X, Y boards next.

Closer....

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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Tue Feb 09, 2016 9:12 pm    Post subject: Reply with quote

AnalogRocks wrote:
Swapped the input board, insstalled the new T-con board and it will now power up, says "Power Saver" and shuts down.

I do still have the right half of the screen looking odd. I think I'll try new X, Y boards next.

Closer....


Oh yeah, I'm typing this on the screen right now. As long as I don't need the
right half I'm fine Laughing

Found out this is a 47" IPS panel. I always wanted to see what an IPS panel looked like.
Turns out I already had one. Very Happy

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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Thu Feb 11, 2016 7:06 am    Post subject: Reply with quote

I'm now looking for the ribbon cables that go from the T-con to the LCD panel. Anyone?
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Sat Feb 13, 2016 8:13 pm    Post subject: Reply with quote

Seems many people sell the boards but no body has the cables. Still lookin' anyone have an idea where to find one?
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Thu Feb 18, 2016 4:54 am    Post subject: Reply with quote

up^
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AnalogRocks
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Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Thu Apr 14, 2016 6:38 am    Post subject: Reply with quote

Still looking for a ribbon cable
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AnalogRocks
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Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Fri Apr 15, 2016 4:21 am    Post subject: Reply with quote

AnalogRocks wrote:
Still looking for a ribbon cable


May have a line on one locally. Fingers crossed

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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Mon May 16, 2016 2:43 am    Post subject: Reply with quote

Still need a ribbon cable for this flood victim
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Sun Sep 04, 2016 1:43 am    Post subject: Reply with quote

Ribbon cables. Anyone?
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26079
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Sat Sep 10, 2016 4:01 am    Post subject: Reply with quote

Just found 2 LG ribbon cables, 60 pin on ebay for $13 shipped. Fingers crossed.
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