Technology of Q 2500 colour TV set
Technology of Q 2500 colour TV set
Technology of Q 2500 colour TV set
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<strong>Technology</strong> <strong>of</strong> Q <strong>2500</strong> <strong>colour</strong> <strong>TV</strong> <strong>set</strong>3.4.5 LNC supplyThe components for LNC supply located onthe Sat 6 unit or optionally on the DVB module.The control <strong>of</strong> the circuit on Sat 6 is byDVB operation via the IIC bus and a free port(DISEqCWR) <strong>of</strong> the DVB decoder/ controllerchip STi5500. In <strong>TV</strong> operation the <strong>TV</strong> controllerassumes control <strong>of</strong> the Sat 6 unit. Thisachieves better decoupling <strong>of</strong> the s<strong>of</strong>twaremodule.Parameter Value NoteLNC voltages0/14/18 VLNC currentmax. 400 mACurrent limitationElectronic22 kHz signal yes (modular)Amplitude pf 22 kHz signal 1 VssDuty cycle (50 +/- 10) %DISEqC version 1.0 and partially 1.1 Write onlyDocument Q <strong>2500</strong> 59 © Loewe ProCollege
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