Electronics > Beginners
a kind of diode?
nickeevblog10:
Hi, a cylindrical diode shaped component of one color deep grey.
There is two of these on this TV model LED board. I removed both from the board, please look at the photos.
Because I could not identify these components I measured them as diodes because they look like diodes and the grey colored one when measured @ mVs after settling down from readings going up and down is 0.13V both ways, and the blackened one measures 0.12V one way and 0.14V the other way and later when I measured the readings kept jumping between 0.23V and 0.14V.
Can someone tell me what these components are for replacement please.
This 50 inch LED TV Board is model TNP4G549 - S01A 549AA A11457JZ 130719 < all the numbers I do not find a result for on Google
In the second photo is both which seems to be one good component, and the burned (blacker) component both seeming to be the same kind with no markings whatsoever on both.
chris_leyson:
Small radial sheilded inductors, maybe something like these https://katalog.we-online.de/en/pbs/WE-TIS. They're marked L9804 and L9805 on the silkscreen.
xavier60:
The middle holes look too clean to have had a lead in them. Ferrite beads on leads placed in the outer holes maybe.
Need to see the other side.
And show us the parts.
gamalot:
Didn't see anything looks like diode, where are they? :-//
OK, they look like ferrite beads.
xavier60:
There are many photos of very similar appearing boards. The parts do look much like beads to me.
https://www.google.com.au/search?client=opera&hs=C9q&biw=1280&bih=669&tbm=isch&sa=1&ei=Dej9W5TYHcqLvQTB6r7gCQ&q=TNP4G549++-++&oq=TNP4G549++-++&gs_l=img.12...3109.3109..5264...0.0..0.213.213.2-1......1....1..gws-wiz-img.ASL1WJdnadg#imgrc=z4-rqH-wEp8ICM:
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