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Rockbox mail archiveSubject: AJBR20 dead - seems like VCC is not generatedAJBR20 dead - seems like VCC is not generated
From: <Markus.Kessler_at_t-online.de>
Date: Mon, 19 Jul 2004 00:18:45 +0200 Hi forum, until now I was just a silent listener to this forum but now I do have have a serious problem with my AJBR20 (upgraded to 80GB and it worked fine for several months). The unit is dead - nothing happens when either pressing and holding the ON button or connecting the charger to the unit. It happens during a normal play when a song was just "paused". When I pressed PLAY again it didn't work so I pressed OFF and the unit turned OFF and since that I am unable to awake it again - strange. As I am a bit experienced in electronics I decided to open the unit to see if something was obviously damaged - guess what - nothing obvious. I also looked at the schematics from the Rockbox Homepage but it seems that my unit is different. Interface board is Rev. V2.1B. >From the schematics from the Rockbox homepage I thought that one of the Transitors T1 or T2 (named 022G) might be damaged or the LM2651-3.3 because it seems that VCC is not available. At least I cannot measure any voltage (beside some "noise") on the coil L2. The problem is that I cannot locate neither one of the Transitors nor the LM2651-3.3 on my board. I wondered if one of you guys might be able to help or can give a hint where to look at. If it is of any help I can create a picture of the Interface board and send it to someone. If would really like to revive my recorder again ... Thanks for any feedback in advance Markus _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2004-07-19 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |