MCD139BT INSTALLATION Preparation Please read entire manual before installation. Before You Start • Disconnect negative battery terminal. Consult a qualified technician for instructions. • Avoid installing the unit where it would be subject to high temperatures, such as from direct sunlight, or where it would be subject to dust, dirt or excessive vibration.
MCD139BT INSTALLATION Wiring Diagram Antenna Connector Remote Turn On Connect to amplifier or power antenna. Insulate wire if not used. 10 AMP AGC Fuse FUSE When replacing the fuse, make sure new fuse is the correct type and amperage. Using an incorrect fuse could damage the radio.
NOTE: CD and USB modes will not appear unless a CD is inserted or USB device is connected. Auxiliary Input The MCD139BT offers a 3.5 mm auxiliary input port on the front panel of the unit for connecting an audio device, MP3 player, etc. Press MODE to select auxiliary input mode.
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MCD139BT OPERATION General Operation - Setup Menu Menu Function Options Action LOCAL OFF Activates distance tuning (Tuner mode only). Local/Distance Activates local tuning for strong station reception only (Tuner Tuning LOCAL ON mode only). Programs the unit to USA tuner spacing. FREQ USA Tuner (200kHz for FM and 10kHz for AM). (Tuner mode only) Frequency Programs the unit to European tuner spacing.
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MCD139BT OPERATION General Operation Audio Press AUDIO momentarily to select between Bass, Treble, Balance and Fader. BASS TREBLE BALANCE Bass Press AUDIO until BASS appears then rotate volume knob left/right to adjust ( - minimum / + maximum). Treble Press AUDIO until TREBLE appears then rotate volume knob left/right to adjust ( - minimum / + maximum).
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MCD139BT OPERATION AM/FM Tuner Operation Seek Tuning Press TUNE or TUNE momentarily to seek to the next strong station. Manual Tuning Press and hold TUNE or TUNE until "MANUAL" appears, then press TUNE or TUNE momentarily to change radio frequency up or down one step at a time.
MCD139BT OPERATION CD Player Operation Insert CD With the label facing up, insert a standard size CD into the CD slot. The CD will automatically begin playback. Eject CD Press EJECT to eject the CD. The unit will change to previous mode of operation. If the disc is not removed within 10 seconds, the unit will reload the disc.
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MCD139BT OPERATION CD Player Operation - MP3 Files Playing an MP3 CD When an MP3 encoded disc is first inserted, “DISC READ" will appear in the display. Depending on the number of files and folders, this may take several seconds. Displaying Information Press DISP to select between song title, artist, file name, folder name, track number, and clock/elapsed time.
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MCD139BT OPERATION CD Player Operation - MP3 Files Media Compatibility The following types of discs/files are compatible: • CD-ROM (ISO), CD-R, CD-RW • CD-DA • MP3 data The following types of discs/files are not compatible: • Discs recorded with Track At Once or packet writing • MP3 PRO format •...
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MCD139BT OPERATION CD Player Operation - MP3 Files Additional An internal buffer provides ESP (Electronic Skip Protection) MP3Information to virtually eliminate skipping. When playing a disc recorded with regular audio files (CD-DA or .WAV) and MP3 files, the unit will play the MP3 files only.
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You can download the Dual iPlug M app from Apple Appstore or Google Playstore and install it on your smart phone or tablet. Please scan the following QR code to download the Dual iPlug M App to your smart phone.
MCD139BT OPERATION Troubleshooting Problem Cause Action Yellow wire not connected or incorrect Check connections for proper voltage Red wire not connected or Unit will not turn on voltage (11~16VDC) incorrect voltage (no power) Black wire not connected Check connection to ground Fuse blown Replace fuse...
2. If you require service during the the original purchase. warranty period, you must carefully pack the product (preferably in the Dual Electronics Corp. agrees, at our original package) and ship it by prepaid option, during the warranty period, transportation with a copy of the original...
MCD139BT OPERATION FCC Compliance This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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