I have a problem with a dropped garage door remote.. It stopped working suddenly, the instance it was dropped from the 2nd floor balcony (baby grabbed the keys and went to thrown them, as she does with everything... we just saw her throwing something and heard lots of keys hitting the ground - otherwise we wouldn`t have found out where the keys were).

Now, I noticed the remote wouldn`t consume current at all (lap psu with very fine mA sensitivity)... I also noticed the piece below is chipped at 1 corner and replacing it with a 2mhz oscillator made it work, but the signal is allover the spectrum (still in the 433mhz ism band, but sometimes is starts transmission at 433.20 and ends transmission at 433.56) and my garage is still on manual (does not work).... I suppose it`s a 2.6mhz quartz oscillator, but I hereby seek professional advice..

I can read the following characters (of course, a better picture can be achieved, will try harder today): 2.60 CM V (the M is inside the C). What manuis it? I could ask for some samples and get them if I`m lucky because I can`t however find such a part anywhere (TME, DigiKey, Farnell)... It was the only remote and some garage door professional told me it`s not from around here, his remotes are very different.

Help anyone? Thank you!

 

That 'chipped' corner might just be to identify pin 1.
You will need to replace it with the correct frequency part for it to work properly.

 

It's a 2.6Mhz Xtal osc.

 

That 'chipped' corner might just be to identify pin 1.
You will need to replace it with the correct frequency part for it to work properly.

Are these polarized?!?!?! (e.g. in-gnd-out and can`t work vice-versa)
I didn`t pay any attention when soldering the 2mhz piece and yet it worked (50% chance of success of course)

Also, I couldn`t find any 2.6mhz crystal oscillator in that form factor, but I guess I can rip one out of an esp8266 together with its capacitors and adapt it to the 7mmx3mm footprint (will definitely fit)....

 

Forget it, ESP8266 has 26mhz and not 2.6mhz oscillator... lol

Anyone has any idea where I can get an 2.6mhz oscillator from?

 

Hello,

Mouser sells those 2.6 Mhz resonators:
https://nl.mouser.com/ProductDetail/Murata-Electronics/CSTCC2M60G53A-R0?qs=MY6wChARw2weG2L9oTWsXQ==
See section 2 of the datasheet

Bertus

 

CSTCC2M60G53A should be the oscillator... it was very hard to find some part name which I could search for...

Found a source for the crystal oscillator, I am hereby posting the link (with no intention what-so-ever to advertise, should any moderator believe this is advertising, please mask the link): http://stesys.eu/ocart/index.php?route=product/product&path=176_177&product_id=1811

I also noticed in the product datasheet that the CM (c containing m) is the logo from muRata (see attached screenshot).

 

Hello,

Mouser sells those 2.6 Mhz resonators:
https://nl.mouser.com/ProductDetail/Murata-Electronics/CSTCC2M60G53A-R0?qs=MY6wChARw2weG2L9oTWsXQ==

Bertus

Found the mouser link before I stumbled upon the Stesys Bulgaria website, the shipping of mouser is ~20 euros... Stesys had 0 eur shipping (or at least this is how I completed the order, looking forward for shipment dispatch; there were some problems - could not process paypal, but I selected pay on arrival and it worked)

NOTE: Just talked to them (phone), the shipping is about 4 euros and I can pay over paypal so that the package is drop-shipped while I am in vacation