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#1 |
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![]() LOGIK L32HED13, turns on and works fine most of the time, but im told every now and then, it wont switch on.
Is C25 on the PCB meant to look like that? Or could that perhaps be the problem? |
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#2 |
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![]() Yes, that seems like the symptom of a marginal/bad/weak capacitor, that cap does look unusual, I haven't seen any that were not flat on top, that were good that is.
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#3 |
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![]() C12 looks a bit strange too, but as in the top os indented, is this normal??
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#4 |
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![]() That one looks pretty strange to me for sure.
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#5 |
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![]() Wonder if those cheap esr meters are any good on ebay.
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#6 | ||
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![]() Quote:
Quote:
Having compared the readings to my Peak ESR70, yes they are. They also have the added bonus of measuring mosfets and resistors and are significantly cheaper. |
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#7 |
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![]() Lots to choose from: https://www.ebay.co.uk/sch/i.html?_f...sacat=0&_sop=2
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#8 |
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![]() I would remove the power supply board and inspect the solder connections espectially on the transformer pins etc.
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#9 | |
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![]() Quote:
Sorry my bad, eyes arent what they use to be lol, I did mean D9, is it meant to look that messy?? Lol The small green capacitor you mention under the word HOT is number C10, and is a 22uf 50v 105 degrees celcius That C12 is badly dented in on the top, I dont know if its been psysically damaged in the past of TV has been opened up before somehow or what, as I dont understamd how it could look like this?? I thought bad caps domed and bulged, not sank in lol |
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#10 | |
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![]() Quote:
I have attached a pic of the one I have |
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#11 |
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#12 |
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![]() That first one has a good price, maybe some members here have it and can advise, might be some reviews on amazon or someplace.
Last edited by nomoresonys; 11-20-2019 at 05:18 AM.. |
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#13 |
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#14 |
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![]() There are plenty of posts on here about them. Anyone half serious about fixing has some way of measuring ESR. That's ignoring all of the other features of them and the fact if you buy a kit version you get the satisfaction of building your own tool. Follow the calibration instructions and the accuracy is pretty decent when compared with other more expensive meters.
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#15 |
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![]() Yep, nothing worse than trying to guess if a cap is ok or not.
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#16 |
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#17 |
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![]() Indeed, it's cheap enough to have around even if you very seldom need to fix any electronics, plus it's small.
Last edited by nomoresonys; 11-20-2019 at 08:01 AM.. |
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#18 | ||
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![]() Quote:
Quote:
I have ordered one up, I had no idea they were so cheap until now Last edited by Bloopeta; 11-20-2019 at 09:07 AM.. |
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#19 | |
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![]() Quote:
C8 can be wiggled quite a bit, but doesnt show on solder connection on rear of board |
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#20 |
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![]() Looks like you have some bad solder joints, look by R57, can check youtube for how bad/cold solder joints look, sometimes they look good but are not, can also look very closely at the resistors from the bottom, sometimes there just a tiny pinhole in m that's hard to see.
Last edited by nomoresonys; 11-20-2019 at 10:03 AM.. |
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