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Chat Area => General Discussion Area => Topic started by: Martin_1962 on 07 May 2011, 08:52:14

Title: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 08:52:14
(http://i91.photobucket.com/albums/k286/martinimber/kebfob/ckf3.jpg)

Just to the right of the top switch, 2 above the LED there is a brown component.

Any idea what it is?

Got a PCB with one missing.

Thanks

Martin
Title: Re: Identify the electronic component?
Post by: hercules on 07 May 2011, 09:21:36
its a constrigulated bypass resistor,2 ohms iirc ;)
Title: Re: Identify the electronic component?
Post by: Debs. on 07 May 2011, 09:26:57
 :P That`s the smoke generator; all electronic-gizmo`s have one! ;D
Title: Re: Identify the electronic component?
Post by: Dishevelled Den on 07 May 2011, 09:28:54
Quote
its a constrigulated bypass resistor,2 ohms iirc ;)


I am in awe, Herc. 8-) 8-)
Title: Re: Identify the electronic component?
Post by: TheBoy on 07 May 2011, 10:26:35
hard to tell from that pic, but guessing cap or coil, but you'd need the numbers off it to get replacement
Title: Re: Identify the electronic component?
Post by: TheBoy on 07 May 2011, 10:27:20
Or given that its a 2 button, bin it, they are 2-a-penny...
Title: Re: Identify the electronic component?
Post by: TheBoy on 07 May 2011, 10:28:29
Actually, thats not Omega one, is it?
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 10:29:40
Corsa

Been butchered
Title: Re: Identify the electronic component?
Post by: TheBoy on 07 May 2011, 10:33:31
Corsa-D?

Dont think they are that dear, just the programming part thats the problem.
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 11:04:20
Quote
Corsa-D?

Dont think they are that dear, just the programming part thats the problem.

It was sent to me for switches and has lots of components missing
Title: Re: Identify the electronic component?
Post by: Debs. on 07 May 2011, 11:12:05
Quote
Quote
Corsa-D?

Dont think they are that dear, just the programming part thats the problem.

It was sent to me for switches and has lots of components missing

If there`s loads missing; would sourcing an 'entire' used-one from the Bay of E not be the cheaper/easier option? :-/
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 12:00:50
Quote
Quote
Quote
Corsa-D?

Dont think they are that dear, just the programming part thats the problem.

It was sent to me for switches and has lots of components missing

If there`s loads missing; would sourcing an 'entire' used-one from the Bay of E not be the cheaper/easier option? :-/


I have told them to do that - there is 1 currently
Title: Re: Identify the electronic component?
Post by: Ken T on 07 May 2011, 12:25:56
I would guess a ceramic cap. It looks to be 1206 in size so could be largish in value.

Ken
Title: Re: Identify the electronic component?
Post by: moggy on 07 May 2011, 13:14:53
Quote
(http://i91.photobucket.com/albums/k286/martinimber/kebfob/ckf3.jpg)

Just to the right of the top switch, 2 above the LED there is a brown component.

Any idea what it is?

Got a PCB with one missing.

Thanks

Martin
Martin,i work in electronics its an inductor coil.Value unknown it may be as said written on it,but it would need to be measured.(note wound copper wire inside=coil :y
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 15:46:01
An inductor - OK don't have any of those - told them to buy a complete SH one for me to canibalise

THanks

Martin
Title: Re: Identify the electronic component?
Post by: Marks DTM Calib on 07 May 2011, 17:59:52
I must look and read better....yep, its an SMT  inductor
Title: Re: Identify the electronic component?
Post by: Ken T on 07 May 2011, 18:47:27
Yes, I was looking at the wrong part  :-X
To check it just measure its resistance, it should be fairly low.

Ken
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 07 May 2011, 22:53:26
Are they easy or cheap to find and I have no example as the fob for repair has it missing
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 19 May 2011, 20:32:43
Aghhhhhhh

Rebuilding the faulty fob and the inductor broke while being moved


Aghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 19 May 2011, 21:09:18
18.7 on the 200,000 ohm meter
Title: Re: Identify the electronic component?
Post by: Ken T on 19 May 2011, 22:33:01
Trouble is that's a bit high for an inductor without lots of turns. Also if it broke, well sometimes they are wound on a ferrite core, and if that breaks the inductance will all be to pot. OK maybe my thinking is a bit constrained, but you need to know what its doing in the circuit before substituting. If its filtering a power rail, most things will do, its only stopping high freq stuff. If however its part of a resonant circuit where the frequency does matter the the wrong value will screw things up.

Ken
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 19 May 2011, 23:02:20
One end fell off while removing from the donor board >:( >:( :( :(

Small about 0.5 x 1 x 2 approx
Title: Re: Identify the electronic component?
Post by: Ken T on 19 May 2011, 23:45:54
Hmm, are you using hot air to get it off ?. I remember when you were talking about plastic welding, and I suggested you get a temp controlled hot air system. That is nearly the best tool for getting off SMD components, it heats both sides up at once so it will come off easily. Alternatively put a blob of solder on both sides and with a big iron try and get both sides molten so it can be removed.

The compnent size sounds like 0805 ( 0.08 ins long  * 0.05 ins across ). I'll see if I can find any chip inductors, but as I said if its a frequency determining cct you will have no chance without the correct component.

ken
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 20 May 2011, 08:03:53
OK I'll try the plastic welder thanks Martin
Title: Re: Identify the electronic component?
Post by: Matchless on 20 May 2011, 13:21:47
Any colour dots on top of the inductor martin?
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 20 May 2011, 13:32:10
Quote
Any colour dots on top of the inductor martin?


No just varnish covered copper (I think) over the usual SMD white plastic base.
Title: Re: Identify the electronic component?
Post by: moggy on 20 May 2011, 23:38:52
Martin,spoke to one of the tecs at the electronic company i work for.He suggested a few ideas,first it has a number on the pcb and a name.(659856.21.02a siemens)You could ask siemens if they still make that pcb,or if they have schematics and a bill of materials for it.That way you will not only know how the circuit works,but also what components and there values are.The only thing is not all electronic companies make there own pcbs.For example my company make pcbs for LG,but siemens may tell you who manufactures the pcb :) :y HTH Moggy
Title: Re: Identify the electronic component?
Post by: Martin_1962 on 20 May 2011, 23:45:02
Thanks

I'll email them tommorrow :y