Modification Files A to D - The World of Free Packet Software Amsterdam
       THE NL3ASD MODIFICATION FILES - THE HAM RADIO MODIFICATION - PAGES PAGES A TO DHOMEPAGE



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 The Weather in Amsterdam The Nederlands
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