Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: terry paget on 14 June 2015, 17:39:06

Title: Changing microswitches on key fobs
Post by: terry paget on 14 June 2015, 17:39:06
The door opening microswitch on key fob of Jonny's 2.2 doesn't work. I have spare fobs kicking around. Is it practical to move fobs around with a little soldering?
Title: Re: Changing microswitches on key fobs
Post by: chrisgixer on 14 June 2015, 17:40:34
Buttons are available to re solder on to the pcb.
Title: Re: Changing microswitches on key fobs
Post by: terry paget on 14 June 2015, 19:33:23
Buttons are available to re solder on to the pcb.
Where?
Title: Re: Changing microswitches on key fobs
Post by: TheBoy on 14 June 2015, 21:27:29
Farnell, RS, or your favourite electronics wholesaler.

Not worth moving switches, as the donors will be shot anyway.
Title: Re: Changing microswitches on key fobs
Post by: Andy H on 14 June 2015, 21:34:02
I bought switches from Farnell part no 186-7993.

I have had them 4 years and still haven't fitted them though so can't absolutely guarantee they are a direct replacement.

http://uk.farnell.com/wurth-elektronik/434123025816/switch-160gf-6x3-8x2-5mm-blk-j/dp/1867993?ost=186-7993 (http://uk.farnell.com/wurth-elektronik/434123025816/switch-160gf-6x3-8x2-5mm-blk-j/dp/1867993?ost=186-7993)
Title: Re: Changing microswitches on key fobs
Post by: Bigron on 14 June 2015, 21:47:53
I bought switches and cases from ebay a few years back and they are easy to fit with a fine-tipped soldering iron.
I agree with TB that it simply isn't worth the effort of trying to salvage any old parts.
I'm sorry I cannot remember the vendor on ebay, which is a bit important because there are several sellers on the bay and quality is variable; mine have lasted quite a few years, so I chose luckily.

Ron.
Title: Re: Changing microswitches on key fobs
Post by: Bigron on 14 June 2015, 21:50:25
I forgot to mention that I bought replacement cases from this same supplier, as the old ones were falling apart - holes where the fingers went on the buttons - and they are still as new.

Ron.
Title: Re: Changing microswitches on key fobs
Post by: TheBoy on 15 June 2015, 18:46:01
I've yet to find a good replacement 3 button case. The ebay ones are all too hard.

I think even the OOF shop sells the switches. But if you want loads, will be cheaper to go directly to Farnell/CPC/RS etc
Title: Re: Changing microswitches on key fobs
Post by: chrisgixer on 15 June 2015, 19:34:54
Yes the eBay cases are indeed too hard, making it difficult to press the fob hard enough without wondering if it's the case or a faulty button that's damaging the board.

However, I do wonder if said overly hard rubber in the eBay cases might last a bit longer than the GM ones! ( :o )
Title: Re: Changing microswitches on key fobs
Post by: Bigron on 15 June 2015, 19:41:16
Chris, I hate to disagree with such an illustrious member, but the ones I purchased from ebay are soft-ish, easy to operate and very durable - must have lasted at least 6 years with no signs of wear yet....I wish I had kept a record of the vendor, so others could benefit too. I may have paid via PayPal and will search my records, but do they go back that far?

Ron.
Title: Re: Changing microswitches on key fobs
Post by: VXL V6 on 15 June 2015, 21:24:23
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.

Reminds me, I must fix the flip key for Mr's VXL's Alhambra. Seem to recall I made a bit of a mess of it when I bought a new case previously. something along the lines of the transponder being super-glued into the original case and some interfacing issue with a screwdriver.  :-[
Title: Re: Changing microswitches on key fobs
Post by: TheBoy on 15 June 2015, 21:43:45
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.
I must have tried 50+ different vendors. Every single one binned.
Title: Re: Changing microswitches on key fobs
Post by: VXL V6 on 15 June 2015, 21:46:19
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.
I must have tried 50+ different vendors. Every single one binned.
I wonder what VX charge for them.... assuming you can buy them without the innards.
Title: Re: Changing microswitches on key fobs
Post by: TheBoy on 15 June 2015, 22:23:00
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.
I must have tried 50+ different vendors. Every single one binned.
I wonder what VX charge for them.... assuming you can buy them without the innards.
They sell complete fob. Quite reasonable, unless they have jumped up a lot lately. I think I paid £25 (trade) 3yrs back
Title: Re: Changing microswitches on key fobs
Post by: terry paget on 16 June 2015, 13:49:43
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.
I must have tried 50+ different vendors. Every single one binned.
I wonder what VX charge for them.... assuming you can buy them without the innards.
They sell complete fob. Quite reasonable, unless they have jumped up a lot lately. I think I paid £25 (trade) 3yrs back
I have a complete good fob, coded for a different Omega. Can I recode it, perhaps by switching chips?
Title: Re: Changing microswitches on key fobs
Post by: TheBoy on 16 June 2015, 22:37:42
They do vary on Ebay, a while back they used to be very similar to the OEM ones but the vast majority you buy now are the harder ones as described.
I must have tried 50+ different vendors. Every single one binned.
I wonder what VX charge for them.... assuming you can buy them without the innards.
They sell complete fob. Quite reasonable, unless they have jumped up a lot lately. I think I paid £25 (trade) 3yrs back
I have a complete good fob, coded for a different Omega. Can I recode it, perhaps by switching chips?
Use a tech2 or similar
Title: Re: Changing microswitches on key fobs
Post by: mindaz on 18 June 2015, 18:46:21
I bought some switches from here

it is easy to replace

http://www.adverts.ie/car-parts-accessories/repair-your-opel-key-fob-case-easy-way/3657865