1
Score
oldturkey0
59.5k
Asked
What logic board component is this?
I am currently trying to resurrect a relatively expensive hair straightener. It is a Croc Infrared Titanium Ceramic 1.5-inch Flat Iron. Upon disassembly of the logic board, I did find an obvious burned out component. It does look like a resistor, but does not quite fit the pattern. It is 9.6mm in length, which would make it 1/2 watt. The part that does not look like a resistor are the ring markings. From what is left it looks like:
Black
Grey
third ring not clearly identifiable due to damage
Black
In the normal resistor world, the third ring would be the multiplier, the fourth the tolerance. Black is not an option for that. So anybody have an idea what I got here? Anybody have a flat iron apart to let me know what component I am looking at? I did try to find any schematic or diagram without success. Thanks for the help.
UPDATE
Any chance this could be a capacitor? I do know that some of them use ring markings as well.
Update Hope this is a better picture.
0
Score
Nate
139
Answered
You know, I would probably ignore the two black outer rings and only go the inner ones. The first looks brown to me, the last one looks white, but it's hard to tell from the image what the two middle ones are. I'll bet that's your ohm rating right there.
Also, look on the circuit board for another resistor that looks to have the same colors on it. Sometimes resistors come in pairs or groupings that are all the same ohm ratings.
http://www.csgnetwork.com/resistcolcalc.... you've probably looked at this site...
pollytintop,
Thanks pollytintop. Yes I have, but it does not match anything I come up with.
oldturkey03,
I'd just walk in to the local shop and ask them to work it out..but then I'm a girl and they take pity on me! Seriously though it's worth a shot, our local repairman often has all sorts of parts and info that is far quicker to ask him than spend all day on line. When I look at your photo it looks like there are 3colour bands side by side..white/ora
pollytintop,
Yes, it is the space that makes it look like extra rings. The part that makes me go hhhmmm is the placement of the rings. It is to symmetric on the body, unlike the resistors I have and the color black on both ends. I tried the store route, but had no luck at all. The salesperson just gave me a blank stare :-) I did contact the manufacturer (no answer yet) as well as Mouser and Digikey reps.....I guess will see. Thanks for your help....
oldturkey03,
Can we please get a closer picture of the component? When I try to blow this up it distorts. Also a picture of where it sits on the board, both side, could possibly help.
ABCellars,
I did post a better picture of the component. Have not had time to take a pic of the logic board. Thanks.
oldturkey03,
Nice new pic OT3. I'll try to add a more detailed comment soon, I've had some physical problems for the last 3 weeks. I'd say the odds are in favor of it being a diode. I don't believe the blacks are true rings. Possibly the only true ring is the white one - which would denote polarity on the diode.
ABCellars,
Appreciate it, just take care of yourself first.
oldturkey03,
Hi, OT3 have you resolved this? If so how? In my opinion all the normal tells of a component and/or it's value have been burnt off and the material composing the component are actually the on thing left to be seen. There are some clear lines drawn between materials - possibly a PN junction. I apologize, but without pictures of the surrounding components of where this connects on both sides of the board it is hard to define what it is. Honestly when I first looked at it I thought it was a thermal fuse until you stated it was on the board, which is an abnormal place to find one.
ABCellars,
Thanks for asking. No, mystery is not yet solved, but I have had some promising email exchange with the Korean manufacturer. I will keep you all informed on what I got here when I find out:-)
oldturkey03,
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