66ENGLISHESPAÑOLRQTX1036Using the FM/AM radioManual tuningManual tuning1 Press [FM/AM] to select “FM” or “AM”.2 Press [TUNE MODE] to select “MANUAL”. RX-D55If “PGM” is displayed, press [TUNE MODE] to clear it. RX-D503 Press [2/3] or [5/6] (main unit: [– /2] or [6/+]) to selectthe frequency of the required station.To tune automaticallyPress and hold [2/3] or [5/6] until the frequency starts changingrapidly. The unit begins auto tuning, stopping when it finds a station.• Auto tuning may not function when there is excessive interference.• To cancel auto tuning, press [2/3] or [5/6] once again.To improve receptionFM: Extend the whip antenna and adjust its direction.AM: Adjust the position of the unit.To improve FM sound qualityWhen “FM” is selectedPress [FM MODE] to display “MONO”.To cancelPress [FM MODE] again.• MONO is also cancelled if the frequency is changed.• Turn off “MONO” for normal listening.Memory presetMemory presetUp to 16 stations each can be set in the FM and AM bands.✒ PreparationPress [FM/AM] to select “FM” or “AM”.Automatic presettingRX-D551 Press [PLAY MODE] repeatedly to select either “CURRENT” or“LOWEST”.CURRENT Tuning begins from the current frequency.LOWEST Tuning begins from the lowest frequency.2 Press [AUTO PRESET] to start presetting.RX-D50Press [AUTO PRESET] to start presetting.The tuner presets all the stations it can receive into the channels in ascendingorder. When finished, the last station memorised is tuned in.Manual presetting1 Press [PROGRAM] RX-D55 ([MANUAL PRESET] RX-D50 ).“PGM” is displayed.2 Within 10 seconds or soPress [2/3] or [5/6] to tune tothe required station.3 Press [PROGRAM] RX-D55 ([MANUAL PRESET] RX-D50 ).4 Press the numeric buttons to select a channel.The station occupying a channel is erased if another station is preset to thatchannel.5 Repeat steps 2 to 4 to preset more stations.Selecting a preset stationPress the numeric buttons to select a channel.For channels 10 to 16 press [ 10], then the two digits.OR1 Press [TUNE MODE] to select “PRESET”. RX-D55Press [TUNE MODE] to display “PGM”. RX-D502 Press [2/3] or [5/6](main unit: [– /2] or [6/+]) to select thechannel.Preset channelUSB ( RX-D55 only)The USB connectivity enables you to connect and play MP3 tracks from USBmass storage class. Typically, USB memory devices (bulk only transfer).Connecting a USB mass storage deviceConnecting a USB mass storage device✒ PreparationBefore connecting any USB mass storage device to the unit, ensure that thedata stored therein has been backed up.It is not recommended to use a USB extension cable. The device connected viathe cable will not be recognised by this unit.USB enableddevice(not included)Playing a USB mass storage device1 Reduce the volume and connect the USB mass storage device to theUSB port.2 Press [4/9, USB] to start play.Stop playback Press [8] (stop) during play.“RESUME” is displayed. The position is memorised.Press [4/9, USB] to resume play.Press [8] (stop) again to clear the position.Pause play Press [4/9, USB] during play.Press again to resume play.Skip tracks Press [2/3] or [5/6] (main unit: [–/2] or[6/+]).Skip album Press [R/T, ALBUM] in the play mode.Press [R/T, ALBUM] once and then the numericbuttons in the stop mode.Recording from a USB mass storage device1 Press [2/3] or [5/6] (main unit: [– /2] or [6/+]) to selectthe desired track for recording.2 Press [V ] on the main unit to start recording.✒ NoteWhen you connect your digital audio player to the USB port, it charges all thetime except in standby mode.✒ NOTE on USBCompatible devicesDevices which are defined as USB mass storage class:• USB devices that support bulk only transfer.• USB devices that support USB 2.0 full speed.Supported format• Folders are defined as album.• Files are defined as track.• Track must have the extension “.mp3” or “.MP3”.• CBI (Control/Bulk/Interrupt) is not supported.• A device using NTFS file system is not supported. [Only FAT 12/16/32(File Allocation Table 12/16/32) file system is supported.]• Depending on the sector size, some files may not work.• Maximum album: 255 albums• Maximum track: 2500 tracks• Maximum track in one album: 999 tracksAM allocation settingAM allocation settingBy main unit onlyThis system can also receive AM broadcasts allocated in 10 kHz steps.To change the step from 9 kHz to 10 kHz1 Press and hold [FM/AM].After a few seconds the display changes to a flashing display of the currentminimum frequency.2 Continue to hold down [FM/AM].• When the minimum frequency changes, release the button. To return to theoriginal step, repeat the above steps.• After the setting is changed, any previously preset frequency will becleared.