Hi Frenzel, Thanks for the information. Also we got the same reply from Gumstix. Our Chestnut43 board has wrong DC/DC type, TPS62110. Regards, Manns
Frenzel, Torben wrote:
We had the same problem with two Chestnut43 we received earlier this month. It turned out that the manufacturing company used the wrong DC/DC type. The schematics list the TPS62111 but on the board there was a TPS62110. The difference between the two is that the 110 has an adjustable output voltage, while the 111 is fixed at 3.3V. Since the necessary circuit to set the DC/DC to 3.3V is missing on the board, the output is only 1.1V. We didn't have time to get a replacement, so we applied the circuit ourselves, which involved some delicate soldering. If that is no problem for you, you find the neccesary information in the datasheet for the DC/DC. Outherwise I suggest you check which type is soldered onto the board (it's located directly over the power connector, left to the big coil) and if it's the wrong type, get a replacement from Gumstix. Regards, Torben Frenzel -----Urspr√ľngliche Nachricht----- Von: v.heddoori@lancaster.ac.uk [mailto:v.heddoori@lancaster.ac.uk] Gesendet: Mittwoch, 25. August 2010 14:36 An: General mailing list for gumstix users. Betreff: Re: [Gumstix-users] Newly shipped Chestnut43 board not working. Hi, I faced the same problem where the Chestnut board did not work. If you are looking for the screen to detect whether the board is working then it is possible that chestnut board is not giving power to the LCD. Also, some of the chestnut boards take unusually long time to power up around 30 secs. Regards, Vishwanath I Heddoori Lancaster University, UK On Wed, 25 August, 2010 10:17 am, Manish Tank wrote: > Hi All, > > > Recent I ve purchased chestnut43 board. But it's not working. My overo > fire com and 4.3" LCD are works fine ( tested on another chestnut board). > And hence there's no problem with over fire or LCD. Can there be any > problem in the newly shipped board. > > Chestnut board is "PCB30005-R2467". > > > -- > Manish Tank > > > Embedded Design Engineer > > > L U M I U M > A-304, Shapath 4, > Opp. Karnavati Club, > S G Road, Ahmedabad - 380051 > Main: +91 79 40205555 > Fax: +91 79 40205528 > Cell: +91 9662023643 > > > ---------------------------------------------------------------------- > --- > ----- > Sell apps to millions through the Intel(R) Atom(Tm) Developer Program > Be part of this innovative community and reach millions of netbook > users worldwide. Take advantage of special opportunities to increase > revenue and speed time-to-market. Join now, and jumpstart your future. > http://p.sf.net/sfu/intel-atom-d2d____________________________________ > ___ > ________ > gumstix-users mailing list gumstix-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > ---------------------------------------------------------------------------- -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d _______________________________________________ gumstix-users mailing list gumstix-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------------ Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d _______________________________________________ gumstix-users mailing list gumstix-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gumstix-users


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