Thanks Shahid. I'm glad you liked it.

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Is the OSD affected? Do you have an isolation transformer? Have you checked voltages?
I don't remember hearing about that kind of problem before. I would suspect the LVDS cables, t-con and/or main board, or the panel.

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You are welcome, Frank. I'm glad you liked the article. It was my pleasure to share the experience with you guys. There are many people much more knowledgeable than I am, and have some great videos on YouTube.
Yes, it's very exciting to learn new things.

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Hi Robert, if you didn't thrust the readings when using Polarized Elektrolytes it just must be because the HV generator collapses at those high charging currents needed to fill these bigger Capacitors. So I take it our AR907 devices are in fact the same and no fakes.
I have checked my Tester inside and found 8 HV diodes marked D24 to D31. Being D24 a special HV R3000 type, D25 a special R2000 type and D26-D31 ordinary 1N4007 (1000 Volt) diodes.
I also made photos of all components to be able to repair the device if anything would go up in smoke in future.
By-the-way: The R3000 measured about 1375 ohm when it conducted current on the Diode Test on my Digital tester.
And the R2000 when conducting about 840 Ohm. (I had soldered them out to be sure they functioned okay).
Greetings,
Albert.

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Hi Albert,

Yes I have used it on e-caps, but I don't trust the readings. I didn't buy it for testing e-caps anyway.

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Thanks for your reply Robert. So I guess you never tested any polarized capacitors like I have done?

I am thinking why you never should also use the AR907 for these types. I mean... what made you decide not to use your tester with them? It is not written in the instruction manual that we are not supposed to?

I don't think my, or your, AR907 is Fake because it works fine with smaller non-polarized capacitors like you already showed in part 1 or 2 of playing-with-ics.
Or ! Both of them are Fake if they also should be able to test the polarized ones?
If you catch my drift? But if your AR907 also behaves erratic when testing a 47uF 400V polarized capacitor or higher, I can be certain that our AR907+ Testers are comparable identical in functioning. And to answer your question: I tested my AR907 with perfectly new working 47uF 400V capacitors from Ebay China. And the 47uF 400V cap worked splendid after placing it in my repaired supply from my "Switching power adapter without any switching controller chip!!" article.
But the AR907 as mentioned could not be used to confirm if the 47uF was okay.
Albert.

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Hi Albert,

Ok, that is what an Elco is. If an elco passes the flick, capacitance, and ESR tests and you still suspect it, and you can't or don't want to test the voltage across the cap while energized, then I would just replace it and see if that fixes the problem.
I got the digital insulation tester for non-polarized caps and wiring. To test elco's, an analog insulation tester would probably be better. But it would be cheaper just to replace the cap and see if that fixes the problem.
You may also have a bad unit and need to send it back for a new one, or a refund. Also you have to watch out for fakes! There are all kinds of fake components and meters and everything on Ebay - I've complained about it to them with no answer from them! I bought 2 fake Sunwa analog meters - they were clearly fakes. I sent photos of them to Mr. Yong to take a look. I got my money back on them but you still have to be careful. If your meter isn't working right then hurry and get your money back.

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