Re: haier 65uf2505 help with T-con problem diagnosis
Well, that's embarassing.
Anyway, here's the part number :
RT6931
GQW
3KT1E
See picture for reference....
Dontlikeusernames
New Member
Last Activity: 10-22-2020, 12:56 PM
Joined: 08-12-2020
Location: Montreal
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Re: haier 65uf2505 help with T-con problem diagnosis
I didn't have much success trying to get the resistance of the check points on the left side of the board. Every spot I tried to check didn't make the meter react, or if so, value would bounce around and go back to default ("1"). I tried cheching the resistance of some resistors by placing both probes on each end and it was showing "normal" values. So I'm not sure why I'm not getting anything on the other spots.
Tv was turned on, meter was set to Ohm, black probe on the chassis and red probe going around...Leave a comment:
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Re: haier 65uf2505 help with T-con problem diagnosis
Ok, here's what I understand from what you're asking me :
I think you want me to check the resistance to ground of the test points that are on the left side of the boards (the side where most of the DC results were 0), meaning I will place my multimeter on resistance mode, place the black prong on the chassis and the red on the different spots.
However, where exactly should I place the red prong? I'm currently trying to place it on the super small metal spot near the circles I was given, but should I also...Leave a comment:
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Re: haier 65uf2505 help with T-con problem diagnosis
Thank you for your help! I tried and got no partial image....Leave a comment:
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Re: haier 65uf2505 help with T-con problem diagnosis
Ok! After much effort, I did what you asked for :
I turned on the tv and check DC voltage on the marked spot. I tried to double and triple check all results, but don't hesitate to ask me to measure another time some spots if something doesn't make sense.
The results are written on the attached image itself (might need to zoom in a little to see) in red, in the following format :
x / x / x -->*both ribbons / left ribbons / right ribbons
Thank you for your help!...Leave a comment:
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Re: haier 65uf2505 help with T-con problem diagnosis
Some update :
I screwed the t-con board back in place, plugged all the cables and turned on the tv.
I checked the DC voltage of the Fuse F1 and it gives me the expected 12V on both sides.
What should I test next?...Leave a comment:
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Re: haier 65uf2505 help with T-con problem diagnosis
Hey! Thanks for getting back to me so quickly.
I tested the resistance and it gives me the same reading as when I touch both prongs together.
I can’t quite test the dc voltage now, I’ll get to it tomorrow, but just to be clear (English isn’t my mother tongue), chassis GND refers to chassis ground right? And that chassis ground would be which part of the board? Would the metallic part (bronze color) near the screw holes be a good spot? I’m guessing it’s not all that different then when...Last edited by Dontlikeusernames; 08-12-2020, 08:55 PM.Leave a comment:
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haier 65uf2505 help with T-con problem diagnosis
Hi!
A bit of a disclaimer right off the bat : I don't have much experience in electronic repair, but I'm more than willing to learn and spend time researching what has to be researched. However, I expect I'll have to ask for guidance on some of the advice you'll make me, as I might not exactly what you're asking for. As for equipment, I have a basic soldering iron, a multimeter and a very good electronic store nearby.
My problem : I was given a broken TV, model Haier 65uf2505. From my initial analysis, I believe the t-con is defective. Here's what I noticed :
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Re: New Members - please post your introductions here
Hey! I'm new here. I was looking for a good place to learn more about electronic repair and some other forum referred to this place as being pretty good, so here I am.
Hope everyone is having a great day.Leave a comment:
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