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| THE NL3ASD MODIFICATION FILES - THE HAM RADIO MODIFICATION - PAGES PAGES A TO D | HOMEPAGE |
From: kurt Subject: THE REAL Standard 558 radio mod Followup- To: rec.radio.amateur.misc Date: 30 Nov 1992 17:25:04 GMT Organization: Computer Science Dept., Texas A&M University Lines:69 Distribution:world Message-ID: <1fdipginn6l3Nntp-Posting-Host: ai0.cs.tamu.edu Keywords:Standard C558A extended transmit >From a sheet that I got from a vendor, here 'tis:MARS/CAP (Wide band transmit) 1 Remove battery and antenna 2 Remove front case assembly block by unscrewing 3 Remove tthe copper plate around the back side of the display section 4 Remove the diode indicated by D2, and add a diode 1SS301 leaving other components intact as per the following drawing. 5 Reassemble radio and install battery 6 Turn on power and execute master reset. ---------------------------------------- ------------+ +------------- | | | +------+ (PC board "donut") | | | / +-----------+ +------+ / | | | /---\ PC board trace/ | D1 | +--+ +++ | +-----+ component layout | | +--+ +++ | | | +-----------+ | | \+-+/ +-----+-+ | | | +------+ | | | | | | +-+----+ +-+ +--+ +---+ | | | | | <---- CHANGE +-------------+ | | D2 | +------+ +---+ | | | +-----+-+ | "Not to scale" | | +-----+ ** ** \**/ \/ +--------+ (about here) +------------+ | | | | +--+ | +----+ | | PC board locator| +-----------------/------\--------+ | +--+ | | | | | | | ++ +-----+ | | ++ +-+ | | | | | | | | | Opening for | | speaker about | | here (funny | | shaped opening) | ............................... CAVEAT:I have not tried this with my radio as yet This is a drawing that I got from a vendor I'm waiting for the 1SS301 diode to get here, as I could not find the configuration of the 3-legged beastie Your mileage may vary 73/Kurt --- Kurt Freiberger, wb5bbw kurt  Amsterdam   CLICK HERE AND YOU CAN VOTE FOR OUR FREE WEBSITES IN THE TOP 100 LIST  A TOP RANKING? USE THE ULTIMATE SOFTWARE SUITE FOR WEB SITE PROMOTION  SUBMIT YOUR WEB SITE NOW TO THE INTERNET TOP 50 OF SEARCH ENGINES FOR FREE ALEXA BANNER THIS BANNER GIVES THE DALLY STATISTICS OF THIS FREE WEB SITE The World of Free Packet Radio Software Amsterdam The World of Free Packet Radio Software Amsterdam The Netherlands
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