Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
A big thanks to everyone who contributed thoughts on my solorization issue!
I am especially grate full for those of you that helped me understand the relationship of the Gama test points readings and what reading make for a good T-con board and what reading make for a bad T-con board.
Jim
jm442123
New Member
Last Activity: 03-19-2021, 03:00 PM
Joined: 08-13-2019
Location: Western Springs, IL
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
Diah,
I do not understand your observation from the photo I provided of the Service Menu settings.
You state "some one played and edit 7 Options Value."
Are you indicating there is an incorrect setting on one of Service Menu settings?
Could you please clarify? Thanks.
JimLeave a comment:
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
Yes. I ordered a "new" T-con board on ebay for $28.22. It looked like the Gama IC was about $12. At those prices I would just a well go with a whole new T-con board. I am hoping it is a good T-con board.
Diff .... So a good board would have a downward slope of the voltages from TP1 to TP17. Is that correct? Thanks for all of your help.
JimLeave a comment:
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
Thanks for the opinion that it is a bad T-Con board because of the bad Gama IC, but what leads you to that conclusion based on the test point data? Just curious.Leave a comment:
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
These are the reading from ground to the test point, not reading between test points. Meaning black to ground and red to test point 1, etc.
1 15.0
2 12.83
3 12.04
4 11.14
5 10.73
6 10.40
7 9.98
8 9.12
9 8.16
10 13.19
11 14.08
12 11.64
13 6.81
14 5.62
15 4.88
16 3.56
17 2.65Leave a comment:
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
Yes. I have tested the GAMA test points and have the readings for each test point, but I don't know what readings would indicate proper voltages. I have also tested the 5 additional test points inside the GAMA test points and the 5 test points to the left of the yellow ribbon connector. However I have no documentation that tells me what each test point should read.Leave a comment:
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Re: Samsung LCD LN40AQ550P3FXZA Solarization Issue
Also attached are pictures of each of the 3 boards on this Samsung LCD LN40AQ550P3FXZA with a Solarization Issue....Leave a comment:
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Samsung LCD LN40AQ550P3FXZA Solarization Issue
Hi all. Any help would be greatly appreciated.
Thiss is a Samsung LCD TV model LN40A550P3FXZA with a picture solarization issue that I am trying to trouble shoot.
I have spent most of my time troubleshooting the T-con board. All test points on the T-con board have stable DC voltages. I have documented those voltages on all test points but can not find anywhere what these voltages should be. The GRD test point on the T-conn board reads 1.8v DC which seems like it should read 0 v DC.
No capacitors on any of the boards appear to have issues. I would... -
Re: New Members - please post your introductions here
New member, first post. Hoping to use this board to help me fix my Samsung TV LN40A550P3F. Electronics background. Trying to troubleshoot the T-Con boardLeave a comment:
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