8-2-3. AudioDolby Banner: When turn it “ON”, the model will be in Dolby authentication state.Compression: Compression style. RF atv line AV/S-Video/YPbPr/VGACompression Factor: Compression state.Downmix: output model. MTS System: used when debugging. The parameters only used whendebugging, no need to be modified.8-2-4. ChannelRange Scan: The function could make it to search the channels by differentiation the analogand digital channels.Service ManualModel No.: HL19K242