User manual ONE FOR ALL EXTENDER A1 FOR URC-7780

[. . . ] Extender A1 for the URC-7781 Digital 12 and URC-7780 Stealth 12 Contents 1. Basic Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Installing the extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. 1 Choosing an installation method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. 2 Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. 3 Clean installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. 4 "Almost Clean" installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 5 Upgrading an existing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3. Default operation and button groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4. [. . . ] I have therefore created key moves for Device 1 on the Colour+/- and Brightness- buttons that map to Device 1 Up, Down and OK. When any device is selected I can now press 16:9 to open the aspect ratio list on the TV, then Magic followed by Volume+/- (i. e. Colour+/- ) to scroll the list and finally Channel- (i. e. I want to press Magic before I press 16:9, i. e. before I start the whole aspect adjustment process. I have achieved this with the macro Shift/16:9 = X_DEV1, 16:9, T-Shift. The first two macro keys open the aspect ratio list on the TV, but on their own they would leave Volume+/- and Channel- performing their volume and channel actions. The T-Shift turns them into Colour+/- and Brightness-, which are in the Aspect grouping and so operate Device 1 and which in turn pick up the key moves assigned to these keys to perform the required scrolling and OK actions. 9. The Light button To me, the behaviour of the Light button in the unextended device is the most irritating feature of the URC-7781. When you press any button, the backlight comes on and remains on for about 7 seconds. You want to turn it back on without performing any function. So you press the Light button ­ obviously!Moreover, it no longer comes on when you press any other button. The only way to turn the light back on now is to press the Light button again!Well, the backlight behaves as though there are two switches between the light and its power source. One is a timeswitch that is turned on by any button press. The other is a toggle switch that is toggled by the Light button. When the light is on, both the toggle and the timeswitch are on. When the timeswitch goes off, the light goes off. Like any other button it turns the timeswitch back on but it also turns the toggle off ­ and groan, still no light, not until you press Light again to turn the toggle back on!The Light button performs this toggle action regardless of the reason that you are pressing it, and since it is also the Escape key in long Magic keypress setup operations this is, to say the least, irritating. 14 The Light key still has an Escape action in the extender, as described in section 7. 4, but when it is pressed as an Escape key it has no effect on the backlight. Instead it gives two flashes of the LED to show that it has performed an Escape action. [. . . ] To do this, or to understand the issues in more detail, you need to know the basic format of these features. They share a common format, namely a 3-byte header followed by a body of variable length. Indeed, learned signals also share this format although they occupy a different region of the EEPROM. Byte 3 of the header is the number of bytes in the body, as a hexadecimal value. [. . . ]