Summary of Contents for PV Electronics XTERNA
- Page 1 Assembly Instructions User Guide XTERNA Module XTERNA Module - 1 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
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Page 2: Revision History
REVISION HISTORY Issue Date Reason for Issue Number 01 October 2018 New position for D1 20 April 2018 New document XTERNA Module - 2 - Issue 2 (01 October 2018) www.pvelectronics.co.uk... - Page 3 Driven by a PIC microcontroller with advanced low power modes, the XTERNA captures time from GPS satellites every 6 to 24 hours, and stores in an on-board Temperature Controlled Crystal Oscillator (TCXO).
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Page 4: Tools And Equipment Required
Decorator’s masking tape. Other items you will need. The XTERNA module is powered by 3 X AA Batteries. We recommend high quality branded batteries for the longest service life between battery changes. XTERNA Module... -
Page 5: List Of Components
PCF2129AT (Pre-soldered) Miscellaneous MOD1 4 way 0.1” female header MOD3 4 X Turned Pin Sockets IC1 Socket 14 Way narrow IC socket for IC1 BH-331P 3 X AA Battery Holder XTERNA Module - 5 - Issue 2 (01 October 2018) www.pvelectronics.co.uk... - Page 6 4 coloured bands to identify the value. However it is sometimes unclear in which direction the bands should be read. Therefore, we recommend that the resistors be identified with a multimeter. XTERNA Module - 6 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
- Page 7 Note that a capacitor is soldered at the R3 position. You will need to form the leads of this capacitor to better fit the pad spacing. These capacitors are not polarized, so the orientation does not matter. XTERNA Module - 7 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
- Page 8 DON’T try to desolder it! Actually, so long as the IC has the correct orientation, the socket does not really matter. XTERNA Module - 8 - Issue 2 (01 October 2018)
- Page 9 Bend and solder D1 with care that the black band is oriented as per the photo below. There may be photos in the manual that show it soldered at the ‘D1’ postion on the component side. Disregard this. XTERNA Module - 9 - Issue 2 (01 October 2018)
- Page 10 Flip over the PCB and solder the four sockets with minimal solder, as shown below. As soon as you see the solder flow around the annulus, you can withdraw the solder and iron. XTERNA Module - 10 - Issue 2 (01 October 2018)
- Page 11 M3 X 4mm plastic screw, then solder the four pins to the GPS. Keep the GPS level and pushed down as you solder. XTERNA Module - 11 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
- Page 12 GPS. Don’t forget to put it back again later! LED1 (5mm RGB LED) and T2 (2N7000) The longest lead of the LED goes in the marked hole. Take care you orient correctly. XTERNA Module - 12 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
- Page 13 The flat, engraved front surface should be showing. 4.11 AA Battery Holder Insert the battery holder, and first screw it to the PCB with two self-tapping screws. Then solder the two wires. XTERNA Module - 13 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
- Page 14 IC1. Feed the antenna wire around the battery holder. Finally screw the PCB to the base of the case with the remaining three self-tapping screws. XTERNA Module - 14 - Issue 2 (01 October 2018)
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Page 15: Powering Up For The First Time
POWERING UP FOR THE FIRST TIME For the first use, configure your clock, and then position the XTERNA module as close as possible to the clock, but with a good view of the sky. Insert three NEW, top quality AA batteries. Keep the top cover open, so you can follow the progress on the RGB LED, in case of issues. - Page 16 CIRCUIT XTERNA Module - 16 - Issue 2 (01 October 2018) www.pvelectronics.co.uk...
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