Re: Samsung LNR408DX Negative Picture After TConn Replacement
I am going to try ordering from a different vendor and see what my results are....
CrypticOne
Lone Gun Man
Last Activity: 02-06-2014, 09:44 AM
Joined: 01-29-2014
Location: Denver, CO
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
Sadly it tested bad out of the box from RetechTV. I have left a bunch of messages but they have yet to return any calls.
Cryptic...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
VON 21.59
VOFF -5.19
Thanks,
CrypticLeave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
I showed the pictures of the TV to someone who has some experience with TVs and he thought the panel was bad. Is there any way to test the panel directly?Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
Thank you all for the assistance. I got the replacement tcon and it was DOA with a blown fuse. I will contact the seller Monday. In the mean time I repaired the fuse on the original board and have the same image quality problems as the first replacement board.
So with two tcons doing the same thing; obviously both could be junk boards. Could the panel be bad or the main board? Power supply issues? Should I try another tcon or are there other things to test to determine the issue more clearly? Should I just...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
I wasn't able to find all the points.
VGMA
2= 13.91
3= 12.96
4= 12.43
5= 12.2
6= 11.91
7= 11.7
8= 11.25
9= 7.83
10= 7.5
11= 4.1
12= 3.591
13= 3.47
14= 3.275
15= 2.97
16= 2.558
17= 1.567
18 = .8mv Wrong Pad?...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
Well, That is good. May have just gotten a defective board. Are those the VGMA pads on the T conn?
Would it be helpful to pull the voltages?...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
Where would that chip be typically found? Main board or on the panel itself?...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
The part numbers are slightly different at the very end but both boards should be LJ94-00701F.
I attached a picture of the two T conns and also the service section detailing the options in the menu. Not sure if you can point me in the right direction on what settings I should try.
Thanks,
Cryptic...Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
I should add, I did a factory reset after swapping the boards to see if that would help.Leave a comment:
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Re: Samsung LNR408DX Negative Picture After TConn Replacement
They appeared to be exactly the same board. I don't see any options in the service menu that would apply.
Thanks,
CrypticLeave a comment:
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Samsung LNR408DX Negative Picture After TConn Replacement
I have a Samsung LNR408DX/XAA that had a blown T Conn board. I had no picture and the pico fuse was blown. I replaced the board with a replacement and I have picture now but the colors are very wrong.
The company I purchased the T conn board was nice enough to send me another replacement board to test out in the TV to see if their replacement was defective. I should get it sometime next week but in the mean time I wanted to see if anyone had experienced this issue before and could offer any advice if the second t conn board also does the same thing.
Here is a short video...Last edited by CrypticOne; 01-29-2014, 01:02 PM. -
Re: New Members - please post your introductions here
Mark from Denver. Hoping to get some info about electronics repair.Leave a comment:
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