Roberts Radio Radio RD4 User Guide

RD4  
Digital Audio Broadcasting (DAB)  
Sports Radio  
Operating Instructions  
 
Controls  
1
4
5
2
6
3
1. LCD Display screen  
4. Menu button  
5. Tone button  
6. Preset button  
2. Info button  
3. Select button  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
3
Controls  
7
8
7. Power Supply socket  
8. Earphone socket  
 
4
Controls  
9
10  
POWER  
HOLD  
9. Power button  
10. Hold switch  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
5
Display Screen  
The radio includes a back lit LCD Display Screen.  
The icons at the top of the screen form a custom display indicating  
the status of the radio and any user settings.  
The two-line alphanumeric display at the bottom of the screen can  
show up to 16 characters on each line, and provide information  
about the received stations.  
Back Light  
The Back Light illuminates the Display Screen, making it easy to  
view in a dark environment.  
1. When the Power button is pressed to turn the radio on, the  
Display Screen will illuminate for five seconds.  
2. When the Power button is pressed to turn the radio off, the  
Display Screen will illuminate for a short period.  
3. When a button is pressed the Display Screen will illuminate for  
up to three seconds.  
4. When the radio is powered externally, by connecting a suitable  
external power supply (4.5 V DC) to the Power Supply Socket  
on the radio, the Display Screen remains constantly illuminated.  
 
6
Display  
A
B
C
D
E
F
G
H
A. Volume Level icon  
B. Battery Level icon  
C. Clock  
F. Signal Strength icon  
G. Alphanumeric Display Line 1  
H. Alphanumeric Display Line 2  
D. Favourites icon  
E. Tone icon  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
7
Batteries  
1. Open the battery cover located on the rear of the your radio by  
sliding it in the direction shown by the arrow.  
2. Insert 3 x AA size batteries into the compartment. Make sure the  
(+) and (-) ends of the batteries are positioned as shown inside  
the compartment.  
3. Close the battery cover  
4. Batteries should be replaced when the the Battery  
Level icon shows low.  
5. Press the Power button to switch the radio off before replacing  
batteries.  
6. Press the Power button to switch the radio on after batteries  
have been replaced.  
7. If the radio is not be used for an extended period of time it is  
recommended that the batteries are removed from the radio.  
8. The radio retains all settings. Battery replacement does not cause  
a Reset.  
9. When the power is too low for the radio to operate, the icon will  
flash and the unit will shut down automatically.  
 
8
1
2
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
9
Hold switch  
The Hold switch is used to prevent unintentional operation of your  
radio.  
1. Move the Hold switch on the top of the unit to the “Hold” position,  
as indicated by the arrow. The power and all other buttons will  
be disabled, this will prevent accidental operation when your  
radio is packed in a suitcase or travel bag.  
2. To prevent accidental operation of the controls when your radio is  
switched on, move the Hold switch on the top of the unit to the  
“Hold” position as indicated by the arrow.  
3. To release the Hold switch, move the Hold switch on the top of  
the unit to the “Off” position.  
 
10  
POW
HOLD  
1
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
11  
Earphones  
Plug the earphones into the Earphone Socket on the side of the  
unit.  
Check the Volume Level icon shows that the volume is not too loud  
and place the ear-pieces into your ears.  
Do not turn on the radio with the earphones connected and  
inserted in your ear. Loud noises can damage your hearing.  
Aerial  
The lead connecting earphones to your radio acts as an aerial when  
plugged into the Earphone socket. The lead should be extended as  
much as possible to increase reception.  
 
12  
Earphones  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
13  
Volume Level Icon  
The number of bars displayed (0 - 7) indicates the current volume.  
Battery Level Icon  
The number of bars displayed (0 - 3) indicates the remaining power.  
Clock  
The clock displays the time in 24-hour format as broadcast by DAB  
stations.The Clock is only visible when DAB is being received.  
Favourites Icon  
The Favourites icon displays when tuned to one of the top ten most  
listened to stations.  
Tone Icon  
The Tone icon indicates the type of equalisation that has been  
selected for the station playing. There are six equalisation settings.  
Signal Strength Icon  
The Signal Strength icon indicates the strength of the signal for  
the station currently playing. The icon changes with the signal.  
 
14  
Volume Level Icons  
OFF ----------------------- INCREASING TO ----------------------- FULL  
Battery Level Icons  
EMPTY  
LOW  
MEDIUM  
FULL  
Clock  
The time shown is 11:45 pm  
Favourite Icon  
Tone Icons  
FLAT  
MBASS MONITOR STUDIO  
CLUB  
ARENA  
Signal Strength Icons  
NONE LOW  
MEDIUM  
STRONG  
If you need any further advice, please call our Technical Helpline on :-  
 
15  
020 8758 0338 (Mon-Fri)  
Switching the Radio On  
1. Check that the batteries have been installed correctly.  
2. Ensure that the Hold switch on the top of the unit is in the “Off”  
position.  
3. Plug the earphones into the socket on the side of the unit.  
4. Press the Power button on the top of the unit.  
5. The Display Screen will illuminate to show a welcome message.  
6. After a short period the message will change. The first time the  
radio is switched on, or following a reset, the screen will show  
that it is scanning for available stations.  
7. When the stations have been found the receiver lists them  
alphanumerically, and tunes the radio to the first station in the list.  
8. The station name and the first line of the scrolling Digital Label  
(DLS) will show on the Display Screen.  
9. If no stations are found a message will be displayed, followed by  
a menu providing the opportunity to tune the radio in.  
On subsequent occasions when the radio is switched on the receiver  
will tune the radio to the last selected station and display previous  
icon settings.  
 
16  
If you need any further advice, please call our Technical Helpline on :-  
 
17  
020 8758 0338 (Mon-Fri)  
Digital Label (DLS)  
1. After a station has been tuned and is playing, the station name will  
appear on the first line of the Display Screen.  
2. The bottom line displays the first line of the Digital Label (DLS).  
This information is broadcast along with the audio and contains  
information relevant to the current broadcast content, and technical  
data about the station.  
3. Press the Info button to step through and display the DLS  
information.  
Example DLS information:  
. 1Xtra : BBC  
. Program type : Other music  
. Multiple name : BBC National DAB  
. Date : 05-01-2003  
. Channel & Frequency : 12B 225.64MHz  
. Bitrate mode : 128kbps stereo  
. Signal Error : 2  
The DLS Information is usually longer than 16 characters, so appears  
to scroll in a continuous loop along the bottom line of the Display  
Screen.  
 
18  
3
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
19  
Displaying the Signal Level  
While the radio is in play mode the Select button can be used to  
display the current station Signal Level.  
1. Pressing the Select button will display a bar graphic indicating  
the signal level. The minimum required signal for this station is  
presented as an open box on the bar.  
2. Press the Select button to cancel the Signal Level function.  
Adjusting the Volume Level  
While the radio is in play mode the Select button can be used to  
alter the volume.  
1. Push the Select button up or down to increase or decrease the  
volume.  
2. For every two moves in a single direction a bar is added to or  
removed from the Volume Level icon.  
3. Pushing the Select button continuously in a single direction will  
continue to alter the volume until the button is released or the  
maximum/minimum level is reached.  
4. When the radio is scanning or selecting stations the volume will  
be muted - but the Volume Level icon will not change.  
 
20  
Signal Level  
1
Volume Level  
Increase  
Decrease  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
21  
Selecting a Station  
While the radio is in play mode you can step through the list of  
available stations by using the Select button.  
1. Push the Select button right or left to move the list forward or  
back. The station names will appear in the bottom line of the  
Display Screen with arrows on either side  
2. When the last station in the list is shown pushing the Select  
button to the right will display the first station in the list.  
3. To change the station being played, press the Select button. The  
radio will tune to your selection.  
4. If no station is selected or the interval between button presses is  
greater than seven seconds the function will time out and the  
Display Screen will revert to play mode.  
 
22  
Backward  
Forward  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
23  
Presetting stations  
Selected stations can be stored in memory using the preset function.  
To assign a station to a preset the radio must be in play mode.  
1. Press the Preset button to access the preset function.  
2. The first of a list of ten presets is displayed in the bottom line of  
the Display Screen.  
3. Push the Select button right or left to move the list forward or  
back until you find an empty preset or one you would like to  
overwrite.  
4. Press the Preset button and hold for more than two seconds,  
until the Display Screen confirms that the preset has been  
saved.  
 
24  
1
Backward  
Forward  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
25  
Recalling a preset station  
To select and play a preset station use the Select button to step  
through the list.  
1. Press the Preset button to access the preset function.  
2. The first of a list of ten presets is displayed in the bottom line of  
the Display Screen.  
3. Push the Select button right or left to move the list forward or  
back.  
4. If a station has been stored in the preset, the name of the station  
and the number of the preset will be displayed with arrows on  
either side.  
5. To change the station being played, press the Select button. The  
radio will tune to your preset selection.  
 
26  
1
Backward  
Forward  
5
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
27  
Adjusting the Tone  
While the radio is in play mode the Tone button can be used to  
change the tone.  
The current tone is shown on the Display Screen by the Tone icon.  
1. Press the Tone button to change the tone setting.  
List of tone settings:  
MBass  
Monitor  
Studio  
Club  
Arena  
Flat  
2. The next tone setting will be applied to the current station.  
3. The Tone icon changes to reflect the setting.  
4. Press the Tone button until the desired tone is set.  
5. The Tone setting is saved when the radio is switched off. This  
setting will be applied when the radio is next switched on.  
 
28  
1
Monitor  
Flat  
Studio  
Arena  
MBass  
Club  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
29  
Using the Menu Function  
There are a number of system settings that can be accessed from  
the Menu function.  
List of system settings:  
Station Order  
Manual Tune  
Autoscan local  
Software version  
1. Press the Menu button to access the list of system settings.  
2. Push the Select button right or left to move the list forward or  
back until you find the desired system setting.  
3. Press the Select button to choose the setting.  
 
30  
1
Backward  
Forward  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
31  
Station Order  
When the radio is switched on it compiles a list of stations. The  
Station Order functions can change the way this list is displayed on  
the Display Screen. The default Station Order is alphanumeric.  
Selecting Station Order from the system setting Menu list will display  
a sub menu.  
List of available arrangements:  
Alphanumeric  
Arranged in Number - Alphabetical order.  
Active Station  
Prioritises stations that a signal can be found for, and orders them  
alphanumerically. Stations that do not have a signal are appended to  
the list in alphanumerical order.  
Prune Stations  
Removes station from the list that do not have a signal.  
Fav. Stations  
Prioritises the ten most listened to stations and adds them to the start  
of the list.  
Selecting this function will add the Favourites icon to the Display  
Screen.  
 
32  
If you need any further advice, please call our Technical Helpline on :-  
 
33  
020 8758 0338 (Mon-Fri)  
Adjusting the Station Order  
1. Push the Select button right or left to move the list forward or back  
until you find the desired function.  
2. Press the Select button to select the function.  
3. When the Station Order is set to Fav. Stations browsing the  
Station Order sub menu from the system settings menu will show  
an additional option - Favourite Presets.  
4. Selecting the Favourite Presets function will allocate your  
favourite stations to the preset list - overwriting any existing  
presets.  
 
34  
Backward  
Forward  
2
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
35  
Autoscan Tuning  
SelectingAutoscan local from the system setting Menu list will prompt  
the radio to scan for all available stations.  
1. A scanning message and progress bar are shown on the Display  
Screen.  
2. The number on the right hand side of the Display Screen  
represents the number of stations found. The number will update  
as the scanning progresses.  
3. The volume is muted while the scanning takes place, but the  
Volume Level icon does not change.  
4. When the scanning is complete the radio will return to play mode  
and the station you were listening to previously.  
 
36  
If you need any further advice, please call our Technical Helpline on :-  
 
37  
020 8758 0338 (Mon-Fri)  
Manual tuning  
Selecting Manual tune from the system setting Menu list allows you  
to tune the radio to a specified channel.  
To select a specific channel use the Select button to step through  
the list.  
1. Push the Select button right or left to move the list forward or  
back until you find the desired channel.  
2. Press the Select button to select the channel.  
3. The Display Screen shows the signal strength bar.  
4. To exit the Manual tune function press the Select button.  
This radio has been designed for use in the UK only.  
The UK frequency allocations for DAB Band III Services are channels:  
11B  
11C  
11D  
12A  
12B  
12C  
12D  
 
38  
Backward  
Forward  
2
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
39  
Switching the Radio Off  
When the radio is switched off the current settings and station lists  
are saved for future use. If a reset is made before the radio is  
switched off then default settings will be saved.  
1. Press the Power button on the top of the unit and hold for more  
than two seconds.  
2. The Display Screen will illuminate and will display a power  
down message.  
3. Release the Power button when the message clears. The  
radio is now off.  
 
40  
If you need any further advice, please call our Technical Helpline on :-  
 
41  
020 8758 0338 (Mon-Fri)  
Reset  
The Reset function will erase all settings and station orders set by  
the user, and restores default settings.  
Default settings:  
Station List is empty  
All presets are empty  
Station order is alphanumeric  
Equalisation setting is MBass  
Display mode is scrolling DLS  
1. Press the Menu button down and hold for more than two  
seconds. The Display Screen will show a message asking you  
to confirm the reset.  
2. Press the Select button down to confirm the reset.  
If the Select button is not pressed within three seconds the function  
will time out and the Display Screen will revert to play mode.  
 
42  
1
2
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
43  
Troubleshooting  
The radio is not working and the Display Screen is blank.  
1. Press the Power button.  
2. Check the condition of the batteries.  
3. Check the batteries have been inserted correctly.  
I cannot hear any sound through the earphones.  
1. Plug the earphones into the Earphone Socket on the side of the  
unit.  
2. Adjust the Volume level.  
The radio has locked up.  
1. If the radio is switched on and playing but the buttons do not apear  
to work, check the Hold button is not in the “Hold” position.  
2. If the buttons still do not work Reset the radio. (See page 42).  
3. If this does not resolve the problem, remove the batteries for one  
minute then replace them and try again.  
 
44  
Troubleshooting  
The radio is receiving poor reception.  
1. Check the Signal Strength icon shows that a suitable signal is  
being received.  
2. Use the Autoscan function to rescan for all stations.  
3. If the Autoscan function does not find a station use the Manual  
Tune function.  
4. Ensure the aerial (earphone lead) is positioned for optimum  
reception.  
5. Use the Signal Strength icon to find the best position.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
45  
General  
Do not allow this unit to be exposed to moisture e.g. dripping or  
splashing. Do not leave your radio where excessive heat could  
cause damage such as in a parked car where the heat from the sun  
can build up even though the outside temperature may not seem too  
high.  
 
46  
Specifications  
Battery:  
3 x AA size  
?? R  
?? R  
Battery Life:  
Approx. ??hrs using alkaline batteries  
External Power Supply: 4.5VDC 250mA, 2.1mm power jack positive  
tip (not supplied)  
Frequency coverage:  
Earphone Jack:  
217.5 - 230 MHz, (Band III, UK only)  
32 ohms, in-ear style, with in-line aerial  
element  
The company reserves the right to amend the specification without notice  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
47  
Guarantee  
This radio is guaranteed for twelve months from the date of delivery to the  
original owner against failure due to faulty workmanship or component  
breakdown, subject to the procedure stated below. Should any component  
or part fail during this guarantee period it will be repaired or replaced free of  
charge.  
The guarantee does not cover:  
1. Damage resulting from incorrect use.  
2. Consequential damage.  
3. Product with removed or defaced serial numbers.  
Procedure: Any claim under this guarantee should be made through the  
dealer from whom the instrument was purchased. It is likely that your Roberts'  
dealer will be able to attend to any defect quickly and efficiently but should  
it be necessary the dealer will return the instrument to the company’s service  
department for attention. In the event that it is not possible to return the  
instrument to the Roberts' dealer from whom it was purchased, please  
contact Roberts Radio Technical Services at the address shown below  
before taking further action.  
These statements do not affect the statutory rights of a consumer.  
ROBERTS RADIO TECHNICAL SERVICES  
97-99 WORTON ROAD  
ISLEWORTH MIDDLESEX  
TW7 6EG  
Issue 1  
 
48  

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