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RE: How t repair Garage Door Opener?


  • To: "'ukha_d@xxxxxxx'" <ukha_d@xxxxxxx>
  • Subject: RE: How t repair Garage Door Opener?
  • From: "Steven Dickson" <sdickson@xxxxxxx>
  • Date: Thu, 2 Aug 2001 10:33:39 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx m
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx m
  • Reply-to: ukha_d@xxxxxxx

Title: [ukha_d] How t repair Garage Door Opener?
Thanks for the works of wisdom Keith,  I'll have a look this evening to see where the crystal is and try t get a new one from RS / Farnell.
 
Rgds, Steve
-----Original Message-----
From: Keith Doxey [mailto:ukha@xxxxxxx]
Sent: 02 August 2001 09:47
T : ukha_d
Subject: RE: [ukha_d] How t repair Garage Door Opener?

There is probably a crystal or ceramic resonator in there somewhere to run the oscillator.
 
Broken crystals is a major cause of remote control failure. The break when subjected t shock, eithere totally or a bit chips off and alters the frequency. Either way .....it stops working as it should.
 
Keith
-----Original Message-----
From: Steven Dickson [mailto:sdickson@xxxxxxx]
Sent: 02 August 2001 09:25
T : 'ukha_d@xxxxxxx'
Subject: [ukha_d] How t repair Garage Door Opener?

Guys,

I dropped (from my pocket whilst half way up a ladder, ont concrete) the remote control for the garage door opener last night and now it refuses t work.  It's one of those 'radio' type ones.

Before I end up destroying the thing how can I get it working again.  The led still lights when the button is pressed.

I've taken the cover off and there's a few bits that would perhaps have got messed up, two trimmers / pots, and an address bank switch.  I'm presuming that I've probably altered the frequency slightly.  There's not really allot else in there other than a few smt resistors and diodes and an smt QFP chip.

I'm going to make a note of all the switch positions and then change one at a time, then try the pots.  Any ides on how I might know if the thing is transmitting anything in it's current state - haven't got a scanner?

Any help much appreciated.  It's a Kiwi unit and the manufacturers have since gone bust.

Thanks,

Steve




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