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6

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Unplug the cable when your device is charged or when the internal Li-ion battery 

    of the MR-750 is drained.

CAUTION:

Before charging, please refer to the user manual of the device you wish to 
charge to make sure the charging current required does not exceed 1Amp 
(1,000 mA) of charging current. Overloading the charge circuit may damage 
the MR-750 and void the warranty.

Note:
    

 1.) Some smart phones and portable devices use proprietary USB 

           connections and circuitry, so they may not charge when plugged into 
           the USB port. Please refer to your device user manual before you 
           attempt to charge them.
     2.) It is normal for the MR-750 to be warm while the USB port is in use and 
          charging your smart phone or portable device.  

 

    

 3.) The unit will switch to standby mode automatically and the Power 

          On/Standby will not function during charging.
     4.) After you remove the external device you attached to MR-750 for 
          charging, wait for 10 – 15 seconds before powering on the unit .
     5.) In some cases, the internal battery may not fully charge your portable 
          device. It's recommended that if you start to get intermittent charge 
          indications, unplug the device and fully recharge the internal battery 
          of the MR-750 before attempting to charge your portable device again. 
          See the "Charging the Internal Battery" section above for for more 
          information.

5

.

It is recommended that you fully charge the internal Li-ion battery prior to 

    attempting to charge a mobile device with the USB port. The USB port is only 
    capable of delivering the amount of power that is left in the internal Li-ion battery.

CHARGING/NOAA ALERT LED INDICATOR

Back LED

Battery Charging via USB
       LED lights Red during charging.
       LED lights Green when fully charged.

Battery Charging via Crank
       LED lights Red during charging.
Battery Charging via Solar
       LED lights Red during charging (Must be outdoors and under 
       strong/direct sunlight)

Front LED

NOAA Alert mode
       LED flashes when a weather alert signal is detected

4

.

Observe the battery charge indicator on your device and the charging will start 

    immediately.

13

Summary of Contents for MR-750

Page 1: ...R AM FM NOAA WEATHER BAND RADIO USER MANUAL MR 750 PLEASE READ THIS USER MANUAL COMPLETELY BEFORE OPERATING THIS UNIT AND RETAIN IT FOR FUTURE REFERENCE...

Page 2: ...a safe level Start your volume control at a low setting Slowly increase the sound until you can hear it comfortably and clearly and without distortion Once you have established a comfortable sound le...

Page 3: ...nded by the manufacturer 7 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 8 Only use attachments accessories spe...

Page 4: ...his equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by...

Page 5: ...el 6 LED Flashlight 7 Power On Standby button 8 Clock Radio Tune Down button 9 Volume Down Button 10 Radio Mode selection Clock Set button 11 Weather Alert Indicator 12 Speaker 2 Clock Radio Tune Up b...

Page 6: ...13 16 15 23 17 18 19 20 21 22 POWER SOURCE This radio is designed to operate on multiple power sources MPORTANT If you pull the insulation tab out to activate the internal rechargeable battery and the...

Page 7: ...and LED light do not work You may need to press the reset button if lithium battery is charged up by cranking but radio or LED light does not work 6 Press the Power On Standby button to turn on the un...

Page 8: ...ectly Wrong polarity may damage the unit AAA Note When switching the power source from internal lithium battery to the AAA batteries please make sure the unit is OFF and in standby mode You may encoun...

Page 9: ...ng Indicator will light indicating the unit is charging LOW BATTERY INDICATOR When using battery power to operate this unit and the battery power becomes weak the low battery icon will appear flashing...

Page 10: ...will stop on the first strong signal it finds 5 Press VOLUME button to obtain the desired sound level 6 Press the button on main unit to turn unit into standby mode after listenning The LCD backlight...

Page 11: ...OR BEST RECEPTION To insure maximum weather band reception the Telescopic Antenna should be fully extended and rotated to obtain the best possible station reception 2 RECEIVING AN EMERGENCY WEATHER AL...

Page 12: ...casts a test alert every Wednesday between 11 am and Noon To receive the broadcasts the radio must be within the range of the local broadcast site 10 40 miles depending on terrain and obstructions 3 W...

Page 13: ...ile charging the red Charging LED on back of the unit will be on It will turn to green when the battery is fully charged CHARGING YOUR SMART PHONE OR PORTABLE DEVICE This unit features a USB port for...

Page 14: ...conds before powering on the unit 5 In some cases the internal battery may not fully charge your portable device It s recommended that if you start to get intermittent charge indications unplug the de...

Page 15: ...f the unit 3 Clean your unit with a damp never wet cloth Solvent or detergent should never be used 4 Avoid leaving your unit in direct sunlight or in hot humid or dusty places CAUTION Never allow any...

Page 16: ...a AM reception is weak Relocate the position of the unit Unit in Weather Alert Mode Select AM FM or WB mode as desired Power is not on Unit is charging your portable device Recharge the built in recha...

Page 17: ...d within the U S A This warranty is not assignable or transferable Our obligation under this warranty is the repair or replacement of the defective unit or any part thereof except batteries when it is...

Page 18: ...state to state TO OBTAIN SERVICE please remove all batteries if any and pack the unit carefully and send it freight prepaid to SPECTRA at the address shown below IF THE UNIT IS RETURNED WITHIN THE WA...

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