On Tue, Sep 02, 2008 at 06:03:25PM +0300, Alexander Pogrebny wrote: > Wim Vandeputte: > > hey, > > > > On Tue, Sep 02, 2008 at 05:40:06PM +0300, Alexander Pogrebny wrote: > > > >> I mean and the PCB layout ant the electrical scheme. > >> > > > > I don't think these are public. Ask Soren but I'm sure he will not > > give this away for free > > > > > Why not? Others makes this schemes public, PC Engines for example.
Have you ever asked Asus and Intel about schematics for their boards? There are a few exceptions, but this is not common. That said - Soekris usualy answers concrete questions. > Asking because we have lots broken net4511 that have no warranty. And we > want to repair them. If you read the datasheet of the used components you don't need concrete schematics anymore to repair them. You only need schematics for crazy modifications. Typical problems for 4511 - especially if used with PoE - are broken power logics. The design for the power is simple. The use a NatSemi switcher to build 5V and then a Maxim chip with external MOSFET from IRF for 3,3V out of it. The incoming power comes with a recifier bridge from the Ethernet-Port or with use of a IRF MOSFET from the barrel plug. This is of course just the basic design - there are some additional protcting and filtering components. The same goes for the logic. Read the ELAN datasheet and you know how the PCI busses and SDRAM are connected. Read the datasheet of the NIC and cardbus bridge chips and you know how they are connected as well. If you can't understand the design from the datasheets then you probably should repair them yourself. -- B.Walter <[EMAIL PROTECTED]> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm. _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
