OBSOLETE

FOR INFO ONLY

CS012 LNB switch can select one of two LNBs to feed your receiver. Takes its (low) operating current from the receiver LNB supply. Requires a 5 to 12 volt dc supply to the flying wire in order to switch. Current drawn is a tiny 25 microamps at 9 volts. Can be switched by a 6v or 9v battery if necessary.

£19.95

The CS012 is obsolete. We can offer the SM212V instead. See LNB switch page.

They say: "There's no way to control an LNB switch with a Sky Digibox"

That's what I've been telling people. But ... oops! .. I was wrong. I sat down and thought about this problem. After all, I *hate* getting out of my armchair just as much as you do ;o)

And I had a sudden idea. An idea that worked! And the inspiration came from a customer who was asking me about a problem he had with his TV set. I've been a designer for most of my life so I guess I shouldn't be so surprised that I managed to hit on a simple solution. The surprise is really that it took me nearly two years to do it! I must be getting old :o(

OK, I know you are waiting for the answer. Here it is.

CS012-A adapter

Plug this into the Digibox, connect it to the CS012 LNB switch and you can select either of the LNBs with your Digibox Remote Control!

£9.95

DOWNLOAD Instructions for electronic LNB switch adapter used with Sky Digibox

Windows users should "right click" a DOWNLOAD link above and choose "save target as" to save the PDF file without launching Acrobat Reader. If you "left click" then Acrobat Reader may launch and act as a "helper" for your browser, preventing the file from being saved in its original form. Mac Users should "ctrl-click".

If you do not have "Acrobat Reader" you will also need to download that from here:-
http://www.adobe.com/products/acrobat/readstep.html Free

Using CS012 switch with non-Sky receiver

The LNB switch passes the feed through to terminal "A" unless a voltage is supplied on the thin black wire, in which case it passes the feed through terminal "B".

The black wire "sensing" input is very sensitive and may operate the switch with as little as a volt. Some receivers have a 0/12v output but this output never actually falls to zero volts, so the switch won't go off.

A simple fix for this receiver fault is to connect resistors as shown below.

Connect the black wire to a 1k resistor (brown-black-red) and connect the resistor to the 0/12V zero terminal or to the receiver chassis or to any F plug nut to ground it.

Also connect the black wire to a 4k7 resistor (yellow-purple-red) and connect that to the cathode (banded) end of a silicon diode (e.g. a 1N4148) and connect that to the 0/12V output of the receiver.

You can order a kit from us containing these parts or buy them at your local Maplin store.

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