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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Posted to uk.tech.digital-tv,24hoursupport.helpdesk,uk.telecom.mobile,sci.electronics.basics,sci.electronics.repair
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Using mobile phone as an internet radio
On Wed, 03 Oct 2012 19:42:21 -0400, "
wrote: My 39YO HP45 still works but the power switch is too flaky to be usable. I collect old HP LED type calculators. The HP 45 is well worth fixing and using. The switches tend to fail due to dirt accumulation and/or wearing a grove into the PCB contact area from overuse. I've repaired both problems. http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv018.cgi?read=131014 This is the dirt problem: http://i45.photobucket.com/albums/f96/geoff_q/gunk.jpg I couldn't find a photo of a grove worn in the contacts. I've been quite successful with just cleaning the switch area. I've also repaired missing gold problems with gold leaf. It was difficult, required a microscope, a steady hand, no air movement, and considerable patience. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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