Differences

This shows you the differences between two versions of the page.

--- livebox:assembly [2012/04/18 11:28] – [Additional control hardware] minerva9
+++ livebox:assembly [2013/04/12 14:11] – [HAH PCB assembly notes] minerva9
@@ Line 27: / Line 27: @@
 ====== HAH PCB assembly notes ======
-{{:livebox:pcb_rev1.jpg?320}} click image for enlargement.
+{{:livebox:pcb_rev1.jpg?320}} \\
+Click image for enlargement or download [[http://www.dbzoo.com/_media/livebox/pcb_rev1.jpg|Full JPEG]] 2298x1563 image.
 Before starting, make sure that you have all of the parts that you require. Components are packaged as per the [[http://www2.dbzoo.com|shop]] - keep the parts in their separate bags until you are ready to solder them onto the PCB.
@@ Line 38: / Line 39: @@
 Remember to align the notch on the socket with the notch on the PCB legend. Now, fit the two caps and the xtal. {{ :livebox:hah_xtal_mount.jpg|Crystal Capacitor mounting}} Solder the caps to pins 1 and 2, 5 and 6 of SV1. The xtal fits to pins 3 and 4. Fit these so that the xtal sits on top of the caps.
-Jumper JP1 should be left unfitted. JP3 should be fitted and jumper-ed to short pins 1 and 2. JP4 should be fitted and pins 1 and 2 shorted. Note that our newer PCBs don't need any jumpers.
+Jumper JP1 should be left unfitted. JP3 should be fitted and jumper-ed to short pins 1 and 2. JP4 should be fitted and pins 1 and 2 shorted. Note that our newer PCBs only have one jumper (JP1), which should be fitted and jumper-ed.
 If you have relays to fit, it is easier to fit the diode, resistor (4K7 ohm) and transistor (required to drive the relay) before fitting the relay itself. <note warning>These relays are designed for **LOW** Voltage, **LOW** current operation. If you need to drive mains voltages, you should consider a suitable, external, relay board and take the precautions that are required when dealing with mains voltages.</note> When fitting the diode, ensure that the band on the component matches the PCB legend. When fitting the transistor, ensure that the flat side on the component matches the PCB legend.
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 {{:livebox:rfmounted.jpg?240|RF module mounted}}
-Solder the aerial (a 6.47" piece of wire) onto the RF module solder pad connector (marked 'ANT'). Alternatively, if you have purchased the external antenna, use the pigtail connected SMA socket (that is supplied with the external antenna kit). Centre pin on the connector goes to the 'ANT' pad, outer to any Ground signal on the PCB. \\
+Solder the aerial (a 6.47" piece of wire) onto the RF module solder pad connector (marked 'ANT'). Once fitted, trim the length of the wire to 6.47" Alternatively, if you have purchased the external antenna, use the pigtail connected SMA socket (that is supplied with the external antenna kit). Centre pin on the connector goes to the 'ANT' pad, outer to any Ground signal on the PCB. \\
 \\
 {{:livebox:hah-external_rf_1.jpg|External antenna (thanks to David for the photo)}} \\
 \\
 Next, fit the voltage regulator (marked as IC1 on the PCB legend).\\
+This regulates the 15V feed from the Livebox down to 12V for the RF module.
 Ensure that the flat side on the component matches the PCB legend.