Differences

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

--- livebox:assembly [2012/06/22 00:29] – [HAH PCB assembly notes] brett
+++ livebox:assembly [2013/04/12 14:08] – [HAH PCB assembly notes] minerva9
@@ Line 39: / 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.
@@ Line 62: / Line 62: @@
 \\
 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.