Roberts Radio Radio R9940 User Guide

R9940  
3-band RDS PLL digital radio  
Please read this manual before use  
 
Features  
z Large easy to read Liquid Crystal Display (LCD)  
showing station name, frequency, time, memory  
location and function status.  
z Adjustable sleep timer allows you to fall asleep  
to music.  
z Snooze function - turns off alarm for five  
z RDS station name display.  
minutes.  
z Twenty seven memory presets offer instant  
access to your favourite stations on LW, MW  
and FM.  
z Automatic time set via RDS signal.  
z ATS (Auto Tuning System) - scans LW, MW  
and FM bands, automatically storing stations  
in preset memories.  
z Scanning circuit allows you to search for  
active stations.  
z Wake to radio or buzzer alarms.  
z Humane wake system - buzzer alarm gradually  
increases in volume.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
1
 
Controls  
2
4
6
1
3
5
1. Standby button.  
2. Liquid crystal display.  
3. Time set button.  
4. ATS button.  
7
8
5. FM Stereo/Mono button.  
6. Lock button.  
7. Power/Sleep button.  
8. Display button.  
9. Waveband button.  
10. Tuning/Minute + button.  
11. Tuning/Minute - button.  
12. Preset/Hour + button.  
13. Preset/Hour - button.  
14. Memo button.  
9
14  
12  
10  
13  
11  
2
 
18  
19  
20  
21  
15  
15. Clock auto adjust switch.  
16. Headphone socket.  
17. DC input socket.  
16  
17  
18. Telescopic aerial.  
19. Light button.  
20. Tone control switch.  
21. Volume control.  
22. Folding stand (on rear)  
22  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
3
 
Display  
A
B
C
D
E
F
L
G
H
K
J
I
A. Alarm indicators  
B. RDS indicator.  
C. Sleep time indicator.  
D. Snooze indicator.  
E. Time.  
F. Key lock indicator.  
G. Low battery indicator.  
H. Frequency units.  
I. Memory number.  
K. Frequency and text indicators.  
L. Stereo indicator.  
J. Memory indicator.  
4
 
Installing batteries  
1. Position the radio face down on a soft surface.  
2. Press the catch as shown and slide in the  
direction of the arrow.  
3. Lift out the battery cover  
4. Insert 4 x LR6 (AA) size batteries as shown in  
the diagram.  
5. Replace the battery cover.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
5
 
Battery replacement  
The battery indicator will appear in the display  
immediately your radio is switched off. Batteries  
should be replaced when the indicator shows less than  
3. After removing batteries you have approximately 3  
minutes to replace the batteries after which clock and  
memory information will be lost.  
When the low battery indicator  
appears in  
display replace batteries immediately.  
Setting the clock automatically  
The clock time can be set automatically when  
receiving an RDS station that transmits clock time  
(CT). The CT information is transmitted once every  
minute. If the station has sufficient signal strength the  
clock will set within one or two minutes.  
1. Switch on the radio with the Power button.  
2. Select the FM waveband by repeat pressing of  
the Waveband button.  
3. Fully extend the Telescopic aerial.  
6
 
4. Press and hold down the Tuning up or down  
buttons until the frequency in the display begins  
to change rapidly, release the button.  
5. The radio will now start to search the FM waveband  
and will stop when it finds a station of sufficient  
strength. If the station is of sufficient strength the  
symbol will light up in the liquid crystal  
display.  
6. Slide the Clock auto adjust switch to the ‘On’  
position.  
7. The time segments --:-- will flash in the liquid crystal  
display indicating that the radio is waiting for the  
RDS time signal. When the time is set the display  
will show the time. If the clock does not set within  
three to four minutes, the radio station may not be  
transmitting clock time (CT) information - try another  
radio station.  
8. When your radio is switched off the  
symbol will remain lit indicating that the time has  
been set via the RDS signal.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
7
 
Setting the clock time manually  
When batteries are installed for the first time the  
display will show - - : - -.  
Time can be manually set with the radio switched on  
or off. The clock uses the 24 hour system e.g. 2:00pm  
is shown as 14:00.  
1. Slide the Clock auto adjust switch to the ‘Off’  
position  
2. Press and release the Time set button , the display  
will show ‘TIME SET’  
.
3. The clock uses the 24 hour system e.g. 2:00pm is  
shown as 14:00. Set the correct hour using the Hour  
+ and - buttons.  
4. Set the correct minute using the Minute + and -  
buttons.  
5. Press and release the Time set button to complete  
time setting.  
6. The display will show the correct time.  
8
 
Setting the buzzer alarm  
Note: Clock uses 24 hour system.  
1. Repeatedly press and release the Standby  
button until the display shows ‘Buzzer’.  
2. Whilst the display  
symbol  
and alarm time are flashing set the required  
hour using the Hour + and - buttons.  
3. Set the required minute using the Minute +  
and - buttons. Press and release the Standby  
button to complete alarm setting.  
4. At the preselected time the alarm will sound.  
The alarm may be turned off for 24 hours by  
pressing the Power button.  
5. Pressing any other button (except Standby or  
) whilst the alarm is sounding will activate  
the snooze function. The alarm will be silenced  
for 5 minutes.  
6. To permanently cancel the alarm repeatedly  
press and release the Standby button until the  
symbol is removed from the  
display.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
9
 
Setting the radio alarm  
Note: Clock uses 24 hour system.  
1. Repeatedly press and release the Standby  
button until the display shows ‘Last CH’.  
2. Whilst the display  
symbol  
is flashing set the required hour using the Hour  
+ and - buttons.  
3. Set the required minute using the Minute +  
and - buttons. Press and release the Standby  
button to complete alarm setting.  
4. At the preselected time the radio will switch  
on to the last station listened to. The alarm  
may be turned off for 24 hours by pressing  
the Power button.  
5. Pressing any other button (except Standby or  
) whilst the alarm is sounding will activate  
the snooze function. The alarm will be silenced  
for 5 minutes.  
6. To permanently cancel the alarm repeatedly  
press and release the Standby button until the  
symbol is removed from the  
display.  
10  
 
Search tuning  
1. Switch on your radio by pressing the Power  
button.  
2. Select the required waveband by repeat  
pressing of the Waveband button. The  
waveband selected will appear in the display.  
On FM fully extend the Telescopic aerial. On  
MW and LW rotate your radio for best reception.  
3. Press and hold down either the Tuning + or -  
buttons until the frequency in the display begins  
to change rapidly. Release the button.  
4. Your radio will scan the selected waveband,  
stopping each time it finds a station of sufficient  
strength.Adjust the Volume and Tone controls  
to the required settings.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
11  
 
Manual tuning  
1. Switch on your radio by pressing the Power  
button.  
2. Select the required waveband by repeat  
pressing of the Waveband button. The  
waveband selected will appear in the display.  
On FM fully extend the Telescopic aerial. On  
MW and LW rotate your radio for best reception.  
3. A single press on either the Tuning + or -  
buttons will change the frequency up or down.  
The frequency steps are:- FM 50kHz, MW 9kHz  
or 10kHz and LW 1kHz. Adjust the Volume  
and Tone controls to the required settings.  
12  
 
MW (AM) tuning step size  
In Europe and other parts of the world MW tuning  
steps are 9kHz, in America the MW tuning step size  
is 10kHz.  
To change the MW tuning step size from 9KHz to  
10KHz proceed as follows:-  
1. Switch on your radio and select the MW waveband.  
2. Press and hold down the Display button until  
the display shows 10 kHz.  
3. Press the Display button to confirm the setting.  
4. To change back to 9kHz steps - press and hold  
down the Display button until the display shows  
9 kHz.  
5. Press the Display button to confirm the setting.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
13  
 
Presetting stations  
You may store up to 9 stations on FM, 9 on MW and 9  
on LW giving a total of 27 preset stations.  
1. Tune into the required station using one of the  
tuning methods previously described.  
2. Press and release the Memo button, the word  
SAVE - -> will appear in the display.  
3. Select the preset under which you wish to store  
the station using the Preset + and - buttons.  
4. Press and release the Memo button to store the  
station. The preset number will now appear at the  
bottom of the display.  
5. Repeat the procedure for the remaining presets.  
Note: Presetting of stations can only be carried out  
whilst the word SAVE - -> is showing in the display  
(5 seconds).  
6. If all the preset memory locations are full pushing  
the Memo button will cause the display to show  
FULL. If you still want to store a new station press  
the Memo button and continue from step 3.  
14  
 
Recalling a preset station  
1. Switch on your radio using the Power button.  
2. Select the desired waveband using the Bands  
button.  
3. Press either of the Preset buttons to cycle  
through the available preset stations.  
Deleting a preset station  
Your radio is equipped with a Memory scan  
facility.  
1. Select the preset location you wish to delete  
using the Preset buttons.  
2. Press and hold down the Memo button until  
DELETE appears in the display.  
3. Press the Memo button to confirm you wish  
to delete the preset station  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
15  
 
ATS (Automatic Tuning System)  
The automatic tuning system will scan the  
selected waveband and automatically store  
stations in the memory presets.  
note: ATS operates on FM an MW bands only -  
activating the ATS function will overwrite any  
stations previously stored in the memory presets  
1. Select the required waveband by pressing the  
Bands button.  
2. Press and hold down the ATS button until  
frequency digits in the display begin to change  
rapidly. Your radio will scan the selected  
waveband and automatically store stations in  
memory presets.  
16  
 
Operating your radio using RDS (Radio data system)  
The Radio Data System (RDS) is a system in which  
inaudible digital information is transmitted in addition  
to the normal FM radio programme.  
1. Switch on your radio and select the FM waveband.  
2. Tune into a station, the display will indicate  
frequency for a few seconds and then change to  
show the station name. The  
appear in the display  
symbol will  
3. If the station does not carry RDS information only  
the station frequency will be shown.  
Note: the  
indicator will flash if the signal  
is too weak for RDS operation.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
17  
 
Display Modes (FM only)  
1. Whilst tuned to a station displaying its RDS station  
name, you can change between station name and  
frequency by pressing and releasing the Display  
button.  
2. The display will show the stations frequency for  
approximately 5 seconds before reverting to  
showing station name  
18  
 
FM stereo/mono button (FM only)  
1. If the station being received is weak some hiss may  
be audible, to reduce the hiss press the FM ST/  
Mono button to switch to mono mode. The stereo  
indicator will be removed from the display.  
2. Press the FM ST/Mono button to return to FM  
stereo operation.  
Note: FM stereo is only available when using  
earphone/headphones  
Setting the sleep timer  
Your radio can be set to turn off after a preset time  
has elapsed.  
1. Ensure that your radio is switched off.  
2. Press and hold down the Power button until the  
desired time is reached (maximum 90 minutes in  
15 minute steps). The radio will switch off after the  
sleep time has elapsed.  
3. To cancel the sleep function before the preset time  
has expired, press the Power button.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
19  
 
Display backlight  
1. Pressing the Light button will switch on the  
display backlight and illuminate the display for  
approximately 7 seconds.  
Lock button  
The Lock button is used to prevent  
unintentional operation.  
1. Press the Lock button , the  
symbol  
will appear in the display. The Power and  
all other buttons will be disabled. This will  
prevent accidental operation when the radio  
is packed in a suitcase.  
2. To release the lock function press the Lock  
button, the  
symbol will be removed  
from the display.  
20  
 
Using an AC adaptor (not included)  
TheAC adaptor for use with the R9940 should provide  
6 volts DC output at 300mA centre pin negative  
(Roberts type PU6-B).  
Insert the adaptor plug into the DC socket on the left  
side of the radio. Plug the adaptor into a standard  
13A mains socket outlet. Whenever the adaptor is  
used the batteries are automatically disconnected.  
The AC adaptor should be disconnected from the  
mains supply when not in use.  
We would recommend for economy that the  
R9940 be used via an AC adaptor whenever  
possible with battery operation for occasional  
or stand-by use only.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
21  
 
Headphones  
Headphones or earphones for use with your radio  
should be stereo and fitted with a 3.5mm stereo jack  
plug. Insert the headphone plug into the  
socket  
on the left side of the radio. When the headphones  
are plugged in the loudspeaker is automatically  
disconnected.  
22  
 
Troubleshooting/Reset button  
If your radio fails to operate correctly, or some digits  
on the display are missing or incomplete carry out  
the following procedure.  
1. Switch off the radio and remove the batteries.  
2. With the aid of a suitable implement (the end of a  
paper clip) press the reset button located in the  
battery compartment for at least 5 seconds, this  
will reset the microprocessor, clock time and clear  
all stations stored in preset memory.  
If a problem persists our technical staff would be  
pleased to offer any assistance on operating the  
radio. Our technical helpline number is: 020 8758  
0338.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
23  
 
Specifications  
Power requirements  
Sockets  
DC  
6.0V  
@ 300mA  
Headphone socket  
DC input socket  
3.5mm dia stereo.  
centre pin negative  
6.0 volts centre pin negative.  
Batteries  
4 x IEC size LR6 (AAsize)  
Frequency Range FM  
87.5 -108.0MHz  
Battery Life Approx. 20hrs of listening when  
used for 4 hours a day at normal  
MW  
or  
522  
520  
-
-
1710kHz  
1710KHz  
volume using alkaline batteries.  
Loudspeaker:  
Output power:  
8 ohms  
LW  
153  
-
279kHz  
250mW.  
The company reserves the right to amend the specification without notice.  
24  
 
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. Receivers with removed or defaced serial numbers.  
N.B. Damaged or broken telescopic aerials will not be replaced under guarantee.  
Procedure: Any claim under this guarantee should be made through the dealer from whom the radio 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 service department at the address shown on the rear of this manual before taking  
further action.  
These statements do not affect the statutory rights of a consumer.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
25  
 
ROBERTS RADIO TECHNICAL SERVICES  
97-99 Worton Road  
Isleworth Middlesex  
TW7 6EG  
Technical Helpline :- 020 8758 0338 (Mon-Fri during office hours)  
Issue 1  
 

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