DG8SAQ VNWA Kit Assembly Manual - SDR-Kits

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SDR-Kits.net DG8SAQ USB-VNWA 1.1 & 1.2 Assembly Manual 1.2c[ ] Identify pin 1 (top right corner) of the D9 Female connector when looking at the front holes.Position the flat cable in this connector so the blue core is on the side (pin1) (see fig 6)[ ] Place connector in a Vice and whilst holding connector cable squarely aligned, press the clamponto the female connector by operating the Vice until you hear the clamp clicks in place.Fig 6. D9sub IDC Connection cable assembled to suitSDR-Kits ready drilled Enclosure. Distance between connectors is 25 - 30mmCable 2:Stereo audio cable – with 3.5mm stereo plugs at either end[ ] Cut 2 length of 7cm wire (not provided) and solder between the two stereo plugsprovided. Check with an ohm meter. Perfectionists may use screened cable however thisthis is not necessary. This short cable plugs into audio sockets of the two PCBs.Only after the USB-controlled VNWA has been fully tested, the USB_VNWA Interface PCB isfitted in the Enclosure.Instructions to be provided in the next version of the VNWA Assembly ManualNote it is recommended that the Printed Circuit board is directly soldered in thehorizontal zintec coated metal chassis. Use a 40W or 50W Soldering iron with a bigSDR-Kits.net © 2009 by Jan Verduyn G0BBL SDR-Kits & Thomas Baier DG8SAQ Page 18 of 23
SDR-Kits.net DG8SAQ USB-VNWA 1.1 & 1.2 Assembly Manual 1.2ctip and first remove the blue/grey zintec coating with a small wirebrush or a smallhobby knife.This completes USB_VNWA Kit assembly6. USB-VNWA FaultfindingPlease consult the DG8SAQ USB-VNWA Helpfile.• USB Not recognized - Is DG8SAQ Driver properly installed?USB Enumeration consists of 3 stages: a) detection of USB Hub, b) detection of Atmega88Controller, and c) detection of PCM2900 Audio Codec.Please consult the DG8SAQ USB-VNWA Helpfile. “USB Troubleshooting Guide”• Are 12 MHz or 6 MHz Crystals Oscillating? Check with Scope with x10 Probe• Audio sockets connected with 3.5mm audio stereo cable?• Is the Soundcard in use by another application? CDROM etc• Is another USB device using the DG8SAQ driver connected to the Personal Computer ? (forexample Softrock Radio with QRP2000 Synthesizer)SDR-Kits.net © 2009 by Jan Verduyn G0BBL SDR-Kits & Thomas Baier DG8SAQ Page 19 of 23
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DG8SAQ VNWA Kit Assembly Manual - SDR-Kits

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