blown resistor id - Page 1
Forum section: electronics / repair

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 12:06:48 am
content: if i upload a pic can someone help id a resistor for me i thinks its a 33mohm 5% metal film

author: KhronX
author_rank: Frequent Contributor
timestamp: March 30, 2018, 12:19:08 am
content: How about uploading that photo then? And perhaps a bigger view of where it is in the circuit?

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 12:21:23 am
content: https://imgur.com/a/op3PQpic taken from the not burnt sidehttps://imgur.com/a/PcuhChttps://imgur.com/a/HPJcT

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 12:23:36 am
content: its from a esd board in a dishwashet

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 12:46:16 am
content: added pics for the res and board both sides

author: ar0311
author_rank: Newbie
timestamp: March 30, 2018, 01:58:27 am
content: Orange, brown, black and gold?

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 02:28:07 am
content: ok i think i got it organge yellow black gold looks like they are using it as a fuse

author: Nusa
author_rank: Super Contributor
timestamp: March 30, 2018, 02:29:47 am
content: Quote from: ar0311 on March 30, 2018, 01:58:27 amWhich would be a 31 ohm 5% resistor if you're correct.I'm seeing Red, Orange, Black and Gold. If I'm correct, that's a 23 ohm 5% resistor.Probably about 3 watt from the size, but that's only a guess given no ruler in the pictures.But pictures+monitors+eyes aren't always color-perfect. What colors do YOU see, original poster?Resistor color charts are easy to find if you don't know them.

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 02:38:06 am
content: ok just found s pic of a same board and i am wronghttp://whitegoodsspares.com/pictures/thumbnails/prod_814_1.jpgthis looks like orange red black gold lol that is the right board so that would make it 32 ohms and 5 % tolerance dose the type make a diffecne like metal foil exct

author: drussell
author_rank: Super Contributor
timestamp: March 30, 2018, 05:25:33 am
content: It looks more like orange orange black to me in the full size photo:http://whitegoodsspares.com/pictures/prod_814_1.jpgI take it the old one is completely open?

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 02:01:03 pm
content: dam it replaced the res and reasembled it tested and it poped it again so there must be a short some where else in the thingany one know how to get the schematics for the beko dfsn 1530

author: KhronX
author_rank: Frequent Contributor
timestamp: March 30, 2018, 02:14:11 pm
content: That's right up there with replacing blown fuses before determining what blew them in the first place

author: drussell
author_rank: Super Contributor
timestamp: March 30, 2018, 03:53:31 pm
content: Quote from: drussell on March 30, 2018, 05:25:33 amQuote from: dazq on March 30, 2018, 02:01:03 pmWell, yeah, that is expected unless you tracked down why the original one blew up in the first place.You need to trace out where that goes to find out what it is supposed to do so you can compare it to see whether the currently measured conditions make sense. Like, if this is an output that goes to a solenoid, is the solenoid shorted? etc.First of all, follow that trace to the external connector and see what device it connects to. Wiring diagrams for appliances are usually included inside. It won't showschematicsof the individual modules but should at least show you which wires on this module's connector go to whatever else...

author: dazq
author_rank: Contributor
timestamp: March 30, 2018, 07:22:29 pm
content: beko do not supply diagrams and will not help as they say only a certified engineer can repair there appliances the fuse is on the power in from the power switch which goes down thought the door at this point im a little lost at the moment as my multi meter has vanished so i cant check for contiunty to the parts that the wire go too will get back when i work this out

author: drussell
author_rank: Super Contributor
timestamp: March 31, 2018, 06:23:47 am
content: It looks like it might be being used as part of a snubber or something... When you find your meter, check to be sure that D1 or D6 or that big blue square capacitor are not shorted or something like that.

author: Nusa
author_rank: Super Contributor
timestamp: March 31, 2018, 07:11:17 am
content: Check the varistor also.