I started this journey here with what I thought were bad / shorted caps on the inverter board: [URL="https://www.badcaps.net/forum/showthread.php?t=28489"]https://www.badcaps.net/forum/showthread.php?t=28489[/URL]
Hopefully my notes here can help someone in the future with their TV. As I note in the post, it looked like the capacitor shorted against the inverter transformer and went bad.
What actually happened was a CCFL tube went bad and it seems like that caused the voltage to find a place to go, eg the cap.
Fast forward to me disassembling the whole device;...
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Westinghouse ltv37w2 2 seconds to black
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Re: Ceramic capacitor ID - SD 6KV O69
thanks budm,
I ended up buying a replacement inverter board rather than the caps to recap (hey, it was cheaper)
... unfortunately the problem persists. I'll start a new post in the troubleshooting forum.
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Re: Ceramic capacitor ID - SD 6KV O69
Hmm, I wish I had de-soldered the capacitor last night before ordering all of them! It seems that it was neither an S nor a 5 but indeed an 8 I guess I need to learn more patience.
I guess now I have two questions:
What value is an 8D capacitor, and what can I do with 25 of the other type?
I did also measure the two capacitors, and both seem to be open circuits at the 20megohm range on my old Fluke 8010A meter....
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Re: Ceramic capacitor ID - SD 6KV O69
Ahh, now that you mention it, that "S" did look a bit suspicious! I'm debating now whether to get replacements for all 20 of them (37" TV). The others look OK to me.
Thank you!...
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Re: Ceramic capacitor ID - SD 6KV O69
Ahh, if I only had an ESR meter - it's been on my list for some time but I'm afraid I don't have one good enough to get a value other than "good" or "bad" (homemade). Thanks for the thought, though! (maybe I'll have a look at the test equipment forum and see what I find...)
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Ceramic capacitor ID - SD 6KV O69
I've got a capacitor very close to an inverter transformer that got a little... TOO close. It is marked:
SD
6KV
O69
The O looks like it's a symbol, not a letter or number; I tried taking a picture but the text is simply too small to focus.
I figure it's a ceramic 6kV capacitor, and I would think 6.9pF, but I've not been able to find any rated like that - 6.8pF is the closest I get.
Am I on the right track?...
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Re: New Members - please post your introductions here
Hello everyone, My name is Allen and I've repaired a few TVs with bad capacitors and I've decided it's time I officially joined the forum to try and contribute rather than just lurk. I enjoy electronics design and fabrication in my spare time although my full-time job is industrial electronics design. Hopefully I can learn something and maybe even teach someone something I've learned, myself!
All my best,
Allen AKA GeneralSpecific
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