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Rockbox mail archiveSubject: Re: i knew better but......Re: i knew better but......
From: Andreas Stemmer <groovingandi_at_gmx.de>
Date: Tue, 06 Apr 2004 10:03:33 +0200 Brendan Hack wrote: > I just managed to blow the charging circuit on my original model recorder (20gig). > > From a previous email from Jörg I understand that I need an MC34063A to replace the existing chip on the back of the main board (which seems to be the one labelled 34063A in the bottom right of http://rockbox.haxx.se/internals/rec_iface_bottom.jpg, though I couldn't seem to find this chip on the schematic at http://rockbox.haxx.se/schematics/rec_main.pdf). Partially right. The "normal effect" of inserting a charger with wrong polarity is a blown MC34063A. You'll find it in the schematic of the _interface_ board. The picture on the rockbox website is a recorder with 6 or 10 GB and USB 1.1! On my recorder 20 with USB 2.0, the layout is a little bit different, the MC34063A is on the top side of the interface board. You can easily find it by just removing the faceplate. I recently repaired a jukebox with a blown charging circuit and the MC34063A was still intact. It was just a little smd ferrite bead which was blown. It was easy to find because it left a little crater on the pcb. > I'd just like to confirm that this is what I need and whether I need the 8-SOP or 8-DIP version. I think it's the 8-SOP going by the photo. Yes, 8-SOP > Also, does anyone know where I could pick one of these up in Australia? I don't know any distributor in Australia, but as a fallback solution, you could contact any manufacturer and ask for a free sample. Andreas _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2004-04-06 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |