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Thread ID: 46010 2004-06-10 04:49:00 OT- Cleaning Cordless Phone Key Contacts Winston001 (3612) Press F1
Post ID Timestamp Content User
243245 2004-06-10 04:49:00 I have a Panasonic cordless phone. The keys fail to work unless I press very firmly.

I took it apart about 6 weeks ago and cleaned the key contacts with meths. But even then the improvement was not spectacular and now the phone is as bad as ever.

Any recommendations?
Winston001 (3612)
243246 2004-06-10 05:10:00 The problem is most likely to be with the "black dots" on the back of the rubber sheet, rather than the gold contacts. The black is probably graphite. I suppose if you had a Black Beauty pencil you could do a reasonable repair. Or look for a BBB pencil (or as many Bs as you can get ;-)). Graham L (2)
243247 2004-06-10 05:36:00 I have fixed a few cordless phones, a faulty computer keyboard key and a calculator with graphite powder. (The know-how came from the good folks at Press F1).

Here is an excerpt from a posting I once made.


...........cleaned them with isopropyl, used a tiny screwdriver to very carefully smear graphite powder on the contact points, very carefully cleaned the excess from near the contact points and gently blew it away, (filthy stuff, blow it outside the house and don't get it on your fingers)........

For graphite, try a locksmith or a skateboard shop.

Don't overdo the graphite bit, just enough on the tip of a tiny screwdriver and sort of paste it on.

Cheers.
exLL (515)
243248 2004-06-10 05:46:00 I used Graphite spray on a joystick once,.....


......Infact,Now that i think about it,it may have been Underarm spary containing grahite...

Done the job.

Easy on the nose as well.
metla (154)
243249 2004-06-10 06:13:00 I use Uniden, and replace the keypads. Cheap enough.
Bye
Peter H (220)
243250 2004-06-10 06:19:00 Good tips team. I have some graphite in my garage, but a builders pencil would do it too. I'll give it a whirl.

I find Uniden phones have a slight buzz or hiss and prefer the Panasonic.
Winston001 (3612)
243251 2004-06-10 08:30:00 Mine are digital DECT - handy having 5 phones on the one base station - I'm a lazy B, so there is always one close by.
Bye
Peter H (220)
243252 2004-06-11 00:22:00 Well, the results. :_|

Guess I should have paid more attention to Exll's advice. A tiny bit of graphite doesn't mean ending up with the stuff smeared all over the circuit board - so I now understand. Seems that I ended up with a completely open circuit which no amount of cleaning could remove.
Bugger.

So I now have a Uniden analogue and a Panasonic Dect beside me to make a choice. Ah technology, what would we do without it? :D
Winston001 (3612)
243253 2004-06-11 01:04:00 My experience with Uniden over the years would lead to a firm recommendation for Panasonic in preference to Uniden. godfather (25)
243254 2004-06-11 01:15:00 And one (or the package of a pair) of these (www.dse.co.nz) has been even better than the Panasonic for me. godfather (25)
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