SHARP DR-P420 Tokyo Portable Digital Radio User Manual

June 4, 2024
Sharp

DR-P420 Tokyo Portable Digital Radio
User ManualSHARP DR-P420 Tokyo Portable Digital
Radio

Product images are for illustration purposes only. The actual product may vary.

SHARP DR-P420 Tokyo Portable Digital Radio -Figure 1| SHARP DR-P420 Tokyo Portable Digital Radio -Figure
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Important safety instructions

Please follow all safety instructions and heed all warnings. Keep this manual for future reference.
This symbol instructs the user to consult the user manual for further safety, operation, and maintenance-related information. DC voltage

Precautions
Child safety

  • Always follow basic safety precautions when using this product, especially when children are present. Children should be supervised to ensure that they do not play with the product.

Location

  • The product should be installed in a stable location and ensure the product and its parts are not overhanging.

Ventilation

  • Slots and openings in the cabinet are provided for ventilation to ensure the reliable operation of the product and to protect it from overheating; these openings must not be blocked or covered. Ensure a minimum distance of 5 cm around the product for sufficient ventilation. Never let anyone push anything into holes, slots or any other openings in the product’s casing as this could result in an electric shock.

Heat and operating temperature

  • Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Avoid exposure to direct sunlight.

Naked flames

  • To prevent the risk of fire, keep candles or open flames away from this product.

Water, moisture, and liquid entry

  • To prevent the risk of fire or electric shock, do not expose this product to rain, water, or moisture. Do not place objects filled with liquids on or near this product.

Storms and lightning

  • Storms are dangerous for all electric products. If the mains or aerial wiring is struck by lightning the product might get damaged, even if it is turned off.
    You should disconnect all cables and connectors from the product before a storm.

USB cable

  • Do not damage the USB charging cable, stretch, bend or place heavy objects on it.

Damage

  • Please inspect the unit for damage after unpacking.
    If it is damaged in any way do not operate the unit and consult your dealer.

Maintenance

  • Unplug the power cable from the power source before cleaning the product. Use a soft and clean cloth to clean the outside of the unit. Never clean it with chemicals or detergent.

Service and Repair

  • This product does not contain any parts that are serviceable by the user. Exposing the internal parts inside the device may endanger your life. In case of a fault, contact the manufacturer or authorized service department. The manufacturer’s guarantee does not extend to faults caused by repairs carried out by unauthorized third parties.

Batteries

Installation

  • Do not use any batteries other than those specified.
    Observe the correct polarity when inserting the batteries. Never use different types of batteries together or mix new and old ones.

Use and maintenance

  • Do not expose batteries to high temperatures, e.g. near fire or in direct sunshine. When the product is not to be used for a long time (more than a month), remove the batteries from the product to prevent them from leaking. If the batteries leak, wipe away the leakage inside the battery compartment and replace the batteries with new ones.

Children safety

  • Always ensure battery compartment is closed and secured.
  • Batteries are easily swallowed by young children and can cause severe internal burns and lead to death. Keep batteries away from children. Seek immediate medical advice if  you believe a battery has been swallowed.

Environmental condition

  • Keep batteries away from low air pressure or high temperatures as this may result in an explosion or the leakage of a flammable liquid or gas.

Disposal

  • Please dispose of batteries correctly by following the guidance in this manual (see section “Disposal of this equipment and batteries”). Do not throw them into fire, do not disassemble them, and do not try to recharge non-rechargeable batteries. They could leak or explode.

Disposal of this equipment and batteries

Information for users on collection and disposal of old equipment and used batteries.
This symbol means that the product contains batteries covered by European
Directive 2013/56/EU which cannot be disposed of with normal household waste. Cd, Hg, and Pb underneath the wheelie bin symbol show whether the battery contains,
cadmium (Cd), mercury (Hg) or lead (Pb).
This symbol on a product means that the product is covered by European Directive 2012/19/EU and must not be disposed of or dumped with your other household waste.

This symbol means that the product is designed and manufactured so that it can be recycled and reused.

  • These symbols on the products, packaging, and/or accompanying documents mean that used electrical and electronic products and batteries should not be mixed with general household waste. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling.

CE and UKCA statement:

  • Hereby, Sharp Consumer Electronics Poland sp. z o.o. declares that this audio device is in compliance with the essential requirements and other relevant provisions of RED  Directive 2014/53/EU and UK Radio Equipment Regulations 2017.
  • The full CE text and UKCA declaration of conformity are available at the sharp consumer.eu and then enter the download section of your model and choose “CE  Statements”.

Controls

  1. Telescopic aerial

  2. Battery compartment

  3. Micro USB port

  4. Headphone jack

  5. Backlit display

  6. Power/Mode
    • When switched off, short press: power on
    • When switched on, short press: change mode
    • When powered via USB, long press: standby
    • When powered via battery, long press: power off

  7. Pre-set/Play/Pause (20 DAB/20 FM)
    • Short press: Preset recall
    • Long press: Preset store
    • In Bluetooth mode:
    – Short press to Play/Pause
    – Long press to disconnect current device and scan for new devices

  8. • In DAB mode:
    – Short press to move up the DAB Station list
    • In FM mode:
    – Short press: Move down the frequency band by 0.05MHz.
    – Long press: Scan down the frequency band.
    • In Bluetooth mode: Previous track
    • In Menu: Move through the menu options

  9. • In DAB mode:
    – Short press to move down the DAB Station list
    • In FM mode:
    – Short press: Move up the frequency band by 0.05MHz.
    – Long press: Scan up the frequency band,
    • In Bluetooth mode: Next track
    • In the Menu: Move through the menu options 10.

  10. Info/Menu
    • Short press: Station information
    • Long press: Enter the menu options
    • When in standby mode: short press to enter the Alarm 1 and 2 On/Off settings

  11. Memory presets 1, 2 and 3
    • Short press: Recall preset 1 (2 or 3)
    • Long press: Store preset 1 (2 or 3)

  12. Volume control:
    • Rotate: adjust the volume
    • Rotate in Menu or Presets: Scroll through the available menu options or preset locations
    • Short press: Select a displayed radio station/frequency, menu or preset option
    • When in standby mode, short press: activates a 10-minute snooze.

Box contents

1 x DR-P420 Tokyo Portable Digital Radio
1 x USB to Micro USB power cable
User documentation

Using your portable DAB+/FM radio

Telescopic aerial
Fully extend the telescopic aerial (preferably vertically) before you attempt to tune to a DAB / FM station. This will ensure that the maximum signal strength is available when the radio begins to scan.
Extending the aerial also ensures the best possible sound quality.

Connection
Connect the USB cable supplied to the Micro USB port on the back of the radio. Plug the USB-A (standard) end of the cable into a USB device or adapter to power the radio.  The radio will power on and display <SHARP sharp consumer.eu>. It will then go into standby mode.

Inserting batteries (optional)
Before installing the batteries (not included), please ensure the radio is switched off using and has been unplugged from the USB cable. At the back of the radio, press the tab on the battery compartment covers to remove it.
Insert 4 x 1.5V AA-size (also known as LR-6) batteries, making sure to note the ‘+’ and ‘-‘ markings and position the batteries correctly. Replace the battery cover, making sure that it ‘clicks’ securely shut.

Initial set-up
Short press to switch on the radio. It will begin an automatic scan for DAB stations. A progress bar will show the progress of the scan and the number of stations found. When the scan is complete, your radio will select the first available station and begin to play.
By default, stations are listed numerically and then alphabetically.
Note: The DAB radio station list is stored in the memory; the next time the radio is switched on, the station search does not take place.
Short press or scroll through the available stations. To select the station displayed, a short press . There will be a short delay whilst your radio tunes to your selected station.

Adjusting the volume

Turn clockwise to increase the volume, and anti-clockwise to decrease the volume.
Time and date
Time and date will be synchronized automatically to that broadcast by the DAB service in 24-hour format.
To set the time and date manually, turn on the radio.
Long press to enter the menu options.
Use to select /

Change the mode
Short press to change between DAB, FM, and Bluetooth modes. The display screen will confirm the mode.

DAB radio mode

Select DAB radio mode
Short press until the screen displays <DAB+>.
The first time you use the radio or if the station list is empty, your radio will automatically begin to scan for DAB radio stations. A progress bar will show the progress of the scan and the number of stations found during the scan will also be displayed. If you were listening to a DAB station when you switched the radio off, this station will automatically be selected when you switch the radio back on.
Change DAB stations
Use and scroll through the available stations. Press to select when the station you want to listen to is displayed. There will be a short delay whilst your radio tunes  to your selected station.

Scanning for DAB stations
With DAB radio, additional stations and services regularly become available. Carry out a manual scan periodically to make sure that you have the most up- to-date station listing stored within the memory of your radio. If you have moved your radio to a new location, for e.g., if you go abroad on holiday, then it’s also a good idea to carry out a manual scan.
In DAB mode:
Long press . Use to scroll and select . The display will change to <Scanning…>. A progress bar will show the progress of the scan and the number of stations found.

Prune DAB stations
You can remove the DAB stations in the station list that cannot be received in your area. These are listed with a <?> prefix.

In DAB mode:
Long press . Use to scroll and select . <Prune? Yes> is displayed. Use to scroll and select . Stations with a <?> prefix will now no longer be displayed.

Storing a DAB station preset
Your radio can store up to 20 DAB radio stations as a preset for instant access to your favorite stations.
Note: Storing DAB radio station presets does not overwrite FM station presets.
Tune the radio to the DAB radio station that you wish to preset. Long press until <Preset Store<1:(Empty)>> is displayed. Use to move to the preset location where you would like to store the radio station to (1-20) . Press to select. The display will confirm , where ‘X’ is the number of the preset (1-20)
Note: If there is already an existing DAB station stored under a preset, it will be overwritten when you store the new station.

Tune to a DAB preset station
In DAB mode:
To quickly access the radio stations stored under preset locations 1, 2, or 3, short press 1, 2, or 3 as appropriate, on the front of your radio. Alternatively, short press. <Preset  Recall <1:>> is displayed together with the name or frequency of the station stored there, or <(Empty)> if no previous station has been stored. Use to move to and select the preset station that you would like to listen to (1-20).

DAB display information
When listening to a DAB station, you can change the information that will appear on the display. There are several different types of information that are sent by the broadcaster. Repeatedly short press to cycle through the different information options:

  • Dynamic label segment (DLS) – This is scrolling text information as supplied by the broadcaster. This could include artist names, song titles, contact details for the radio station, etc.
  • Signal strength – An empty will appear on the display to indicate the minimum signal strength for acceptable listening. The row of solid rectangles indicates the actual signal strength that you are receiving.
  • Program type (PTY) – e.g., ‘Rock’, ‘Pop’, ‘Talk’ or ‘News’
  • Multiplex name – Displays the broadcasting area and collection of radio stations on this frequency e.g., BBC National DAB, Digital 1 Network
  • Channel and frequency – e.g. 12B 225.648 MHz (Channel=12B, Frequency=225.648 MHz)
  • Signal error – This is displayed as a number between 0-99. To satisfactorily listen to a radio station, the signal error must be below 30. Adjust the aerial or relocate your radio to improve reception.
  • Signal information – The data rate at which the signal is being transmitted.
  • Power indicator – displays when powered by USB; displays where XX is the battery charge available.
  • Time
  • Date

Dynamic range control (DRC)
DRC data is not transmitted by all broadcasters. DRC is used for controlling the difference between the loudest and quietest sounds. e.g., in a noisy environment, setting the DRC to maximum makes quiet sounds comparatively louder, and loud sounds quieter.
There are 3 levels of compression:

  • DRC off – no compression. This is the default
    setting.

  • DRC low – medium compression

  • DRC high-maximum compression
    In DAB mode, long press . Use to scroll and select and then select your preference.
    Note: The current DRC setting will have an asterisk (*) in the display.

FM radio mode

To change to FM mode, short press until the radio displays . If you were listening to an FM  station when you switched the radio off, this station will automatically be selected when you power the radio back on.

Tune to an FM station
Long press or button to scan up or down the frequency band. The radio will search for and stop at the next available station.
Short press or fine-tune each frequency in 0.05MHz steps.
Note: If the reception is poor, adjust the aerial or move the radio to another location.

Change the scan setting
In FM mode:
Long press , will be displayed.
Press .
There are two different options to choose from:

  • The scan will only stop when strong signal strength is received, resulting in better audio quality.
    It is possible that the station you are scanning for may be missed using this option.

  • The scan will stop at every station it receives, even if the signal strength is poor. Use to choose and select from the options available. **Note:** The current scan setting will have an asterisk (*) in the display.

Storing an FM station preset
Your radio can store up to 20 FM stations in its preset memories for instant access to your favorite stations.
Note: Storing FM radio station presets do not overwrite your DAB station presets.
Tune the radio to the FM radio station that you wish to preset. Long press until <Preset Store
<1:(Empty)>> is displayed. Use to move to and select the preset location that you would like to store the radio station (1-20). The display will confirm <Preset X  stored>, where ‘X’ is the number of the preset (1-20).
Note: If there is already an existing FM station stored under a preset, it will be overwritten when you store the new station.

Auto memory store (AMS)
Alternatively, you can use the Auto Memory Store (AMS) feature to store your FM radio station presets.
In FM mode, long press . Use to scroll to and select . Your radio will now scan the FM frequency band and the stations found will be automatically stored to the preset locations.
Note: You can manually overwrite your AMS stored presets by following the steps in ‘Storing an FM station preset’ above.

Tune to an FM preset station
In FM mode:
To quickly access the radio stations stored under preset locations 1, 2 or 3, short press 1, 2 or 3, as appropriate. Alternatively, short press .
<Preset Recall <1:>> is displayed together with the name or frequency of the station stored there, or <(Empty)> if no previous station has been stored Use to  move to and select the preset station that you would like to listen to (1-20).

FM display information
When listening to an FM station you can change the information that appears on the second line of the display. Repeatedly short press to cycle through the different  information options:

  • Radiotext (RT) – This is scrolling text information as supplied by the broadcaster. This could include artist names, song titles, contact details for the radio station, etc.
  • Program Type (PTY) – e.g., ‘Rock’, ‘Pop‘, ‘Talk’, or ‘News’
  • Station name or frequency – e.g., BBC R4, 93.30MHz
  • Power indicator – displays when powered by USB; displays where XX is the battery charge available.
  • Time
  • Date

Bluetooth mode

Ensure your radio is in Bluetooth mode by short pressing until the radio displays . Your radio will begin to search for Bluetooth devices. Ensure the  Bluetooth-enabled device you are connecting to is discoverable.
Note: If necessary, refer to the instructions for your device to add or set up Bluetooth.
When found, your radio will be displayed as ‘SHARP DR-P420’ on your device. Select this to begin pairing.
Once done, will be displayed on your radio.
Paired devices will connect to the radio when they are within range (within 10 meters in line of sight). Your device will remain paired with the radio unless you decide to disconnect it.
To disconnect from Bluetooth, long press for 3 seconds to unpair your current device and search for new devices.

Wirelessly stream music via Bluetooth
In Bluetooth mode, you can wirelessly stream audio through the product’s speaker. Use the controls on your paired Bluetooth device as well as those on your radio. Controls  available:

  • Play/ Pause: Short press
  • Previous track: Short press
  • Next track: Short press
    Volume can also be adjusted – either using your radio and/or your connected device.

Note: If the radio is inactive for 20 minutes, or no audio signal is being received, the radio will automatically go into standby (or power off if the radio is running on batteries).

Alarm functionality

Note: The alarm function will only function when the radio is powered through via USB; it won’t function when powered through batteries (to preserve the battery life).
Set an alarm
Note: Check that the radio is displaying the correct time and date before you set an alarm.

SHARP DR-P420 Tokyo Portable Digital Radio -Figure 3SHARP DR-P420 Tokyo Portable Digital Radio -Figure
4

Note: If the time is not set or has failed to update from the radio signal,

Stop, snooze, or switch the alarm off
To stop the alarm, a short press , will be displayed. The alarm symbol will remain in the display and will sound again at the same time the next day unless it was set for .
To snooze the alarm, press. will be displayed, followed by a 10-minute countdown. Once the countdown ends, the alarm will sound again. You can terminate snooze by pressing. will be displayed.
To switch off the alarm, follow the steps for ‘Set an alarm and select .

Sleep timer
You can set your radio to switch to standby mode automatically using the sleep timer. You can choose from , <15>, <30>, <45>, <60> and <90> minutes. To do this, long press . Use to scroll and select /. Use to scroll and select your preference.

will be displayed. In the top right of the radio display, the number of minutes until your radio will switch to standby mode will be displayed e.g., S90.

Display backlight timeout
To adjust the display backlight timeout, long press . Use to scroll to and select / / . Scroll through the available backlight timeout options. The current setting will have an asterisk (*) in the display. Press to select.
Similarly, use to change the settings for the backlight brightness for the

and . There are 3 options available: ,, and .

Display language
To change the display language, long press . Use to scroll and select /. Use to scroll and select your preferred language. There are 7 options available:
English, French, German, Italian, Spanish, Polish, and the Netherlands. An asterisk (*) will be displayed next to the current language setting.

Other information

Software version
To check the software version of your radio, long press . Use to scroll and select / . The software version will be displayed.
Factory reset
You can reset your radio to restore it to the original factory settings.

Note: If you reset your radio, your stored presets will be deleted and any connected Bluetooth device will be unpaired.
Long press . Use to scroll and select / . <Factory Reset? Yes > will be displayed. Use to  scroll and select . <Restarting…> will be displayed. After a few seconds, the display will change to and will then go to standby mode.

Troubleshooting

If there is no sound or power:

  • Adjust the volume.
  • Check that the USB cable is connected and that the radio is not in standby mode.
  • If the product is powered using batteries, check if they need to be replaced. Please use good quality AA batteries.

If the radio reception is poor:

  • Make sure that you have fully extended the telescopic aerial (preferably vertically).
  • Rescan for radio stations, see sections ‘Scanning for DAB stations’ and/or ‘Tune to an FM station’ as appropriate.
  • Try moving your radio to another location to see if the reception improves.
  • Check that you do not have other electrical equipment close to your radio. This may cause interference.

If you are unable to pair with a Bluetooth device:

  • Check that you are in Bluetooth mode.
  • Ensure that you are within 10 meters of the radio for Bluetooth functionality.
  • Move the radio and Bluetooth device away from other Bluetooth devices/electrical equipment.
  • If possible, turn off other nearby Bluetooth devices or disable their Bluetooth functionality.

If the function buttons do not respond:

  • Check that the USB cable is connected to the back of your radio. Short press . If you are using batteries, they may need to be replaced.
  • Factory reset the device.
    Note: All your settings, including the radio station list, connected Bluetooth devices and any presets will be deleted when a factory reset is carried out.

Technical specifications

Input DC 5V
Batteries 4 x 1.5V AA size (LR-6) (Optional, not supplied)
Audio output 2 Watts RMS
Power Consumption Active: < 2 W Standby: < 2 mW
DAB frequency range Band III, 174 MHz to 240 MHz
FM frequency range 87.5 MHz to 108 MHz
Bluetooth 2.4 GHz — 2.480 GHz
Pairing name SHARP DR-P420
Dimensions (W) x (H) x (D) mm 174 x 90 x 53
Weight approx. 0,39 kg

Sharp Consumer Electronics Poland sp. z o.o.
Ostaszewo 57B, 87-148 Łysomice, Poland
Made in China
www.sharpconsumer.eu

References

Read User Manual Online (PDF format)

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Download This Manual (PDF format)

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