Sorry, my memory made me a trick. The protection diodes are not shown in the original schematic. They are shown only in the ECO001 and ECO025.
Please, FlexRadio, update and publish the schematic diagrams of the SDR-1000. 73, Ahti OH2RZ On 17/05/07, Ahti Aintila <[EMAIL PROTECTED]> wrote: > Frank, > > My best guess is the preamplifier on the RFE-board. Unless the > schematic diagram is not recently updated, there are protection diodes > (1N4148) before the input capacitor (C47) of the amplifier, so maybe > they are broken, too. You possibly can repair it yourself. See these > ECOs for help: > <http://support.flex-radio.com/Downloads.aspx?id=102> > <http://support.flex-radio.com/Downloads.aspx?id=109> > > > 73, Ahti OH2RZ > > > On 17/05/07, Frank Mayer <[EMAIL PROTECTED]> wrote: > > I have had my SDR for about 6 months now and last night night it was > > subjected to a static discharge during a thunderstorm. Not a direct hit > > but enough to affect the receiver. Now it has very low sensitivity. Are > > there any known causes for this (blown diodes or RF amp transistor in the > > front end)? Or does it need factory repair. > > Frank WA3JBT > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20070517/386eda1e/attachment.html > > _______________________________________________ > > FlexRadio mailing list > > FlexRadio@flex-radio.biz > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > FlexRadio Knowledge Base: http://kb.flex-radio.com/ > > FlexRadio Homepage: http://www.flex-radio.com/ > > > > > _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
