Roberts Multi-Powered 2 Band Radio R9957 User manual

R9957
Multi-Powered 2 band radio
Please read this manual before use
ROBERTS
Sound for Generations

Controls
1. Dynamo handle
2. Emergency buzzer button
3. FM/MW Band switch
Top
1
213

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri)
Controls
Front
2
7
456
9
10
8
4. Lamp button
5. Charge indicator
6. Tuning indicator
7. Tuning control
8. Dial scale with band indicator
9. Power/Volume control
10. Lamp

Controls
Rear
3
11. Carrying strap
12. Battery compartment
13. Battery/Dynamo switch
15
14
16
14. Telescopic aerial
15. Headphone socket
16. DC input socket
13
12
11

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 4
Battery operation
1. Remove the Battery cover on the rear of the unit by pushing
the catch in the direction of the arrow.
2. Insert two LR6 (AA size) batteries into the spaces in the
compartment. Take care to ensure all batteries are inserted
with the correct polarity as shown inside the battery compart-
ment. Replace the battery cover.
3. Reduced power, distortion, and a ‘stuttering’ sound are all
signs that the batteries may need replacing.
4. If the radio is not to be used for any extended period of time
it is recommended that the batteries are removed from the
radio.

5
Operation via an AC adaptor (not included)
The AC adaptor for use with the R9957 should provide 3 volts
DC output at 300mA centre pin positive.
1. Place your radio on a flat surface.
2. Pull back the rubber protection cover from the DC input
socket.
3. Plug the adaptor lead into the DC input socket located on
the left hand side end of your radio ensuring that the plug is
pushed fully into the socket. The batteries will be automati-
cally disconnected.
4. Plug the adaptor into a wall socket and switch on.

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri)
Charging your radio
Your radio can be powered by winding the dynamo handle which
charges an internal rechargeable battery, by using ordinary
alkaline batteries or by using an adaptor. (not supplied)
Using Dynamo power
1. Ensure the telescopic aerial is in the rest position before
winding the dynamo handle.
2. Take out the Dynamo power handle from its rest posi-
tion.
3. Wind the Dynamo handle either clockwise or anti-clockwise
until the charging LED indicator is illuminated. Winding the
radio for 1 minute will give around 30 minutes charge.
4. Ensure the handle is placed back in the rest position once
charged.
Note: The dynamo will not operate if an AC adpator is con-
nected to the radio.
6
3
3

Listening to your radio
1. For FM reception fully extend and position the telescopic
aerial for best reception. For MW reception there is a built
in ferrite aerial, rotate the radio to the position giving best
reception.
2. Switch the Dynamo/Battery switch to either the Dynamo
(if charged) or battery position.
3. Switch on the radio by rotating the Power/Volume control
clockwise, a click will be heard. Adjust the Volume control
until a hissing sound is heard.
4. Select the required waveband using the FM/MW band
switch.
5. Rotate the Tuning knob to select the desired station. On
MW the Tuning scale is marked in kilohertz (kHz). On FM
the Tuning scale is marked in Megahertz (MHz).
6. The Tuning indicator will light.
7. Adjust the Volume control to the required sound level.
8. To switch off your radio rotate the Power/Volume control
fully anti-clockwise until a click is heard.
7
23
7,8
5,6
4

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 8
Lamp operation
Your radio has a built in lamp which can either be used to illumi-
nate the dial scale window or to illuminate for a short distance
when required.
1. Press the lamp button to switch on the lamp.
2. The lamp can be used with the radio in the on or off posi-
tion.
Emergency buzzer
Your radio has a built in buzzer for emergencies. The buzzer is
to be used if you require help.
1. Press the emergency buzzer button to activate the
buzzer.
2. Press the emergency buzzer button again to stop the
buzzer.
• The emergency buzzer can be used with the radio in the on
or off position.
1
1

9
General
Do not allow this unit to be exposed to water, steam or sand. 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. It
is recommended that the FM band be used wherever possible as
better results in terms of quality and freedom from interference
will usually be obtained than on the MW band.
The radio is a water resistant unit not a water proof device,
therefore make sure the rubber cover on the earphones socket
and DC jack are properly sealed after usage.
• The name plate is located on the bottom of the unit.
Headphones
1. A Headphone Socket (3.5mm) located on the left hand end
of your radio is provided for use with either headphones or
an earpiece. Inserting the headphone plug automatically
mutes the internal loudspeaker.
2. Lift back the rubber protection cover then insert headphones
into the headphone socket.

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri)
Specifications
Power Requirements
Batteries 2 x LR6 (AA size) Not included
Dynamo 1.2V rechargeable Ni-MH battery
Mains DC 3 Volts 300mA mains power adaptor
centre pin positive (+). (not supplied)
Battery Life
Approx. 100hrs of listening for 4 hours a day at
normal volume using alkaline cells.
Frequency Coverage
FM 87.5-108MHz
MW 530 - 1710kHz
Circuit Features
Loudspeaker 50mm
8 ohms 0.4W
Output Power 100mW
Headphone socket 3.5mm dia
DC socket 2.5mm dia
Aerial System FM Telescopic aerial
MW Built-in Ferrite aerial
The Company reserves the right to amend the specification without notice.
10

ROBERTS RADIO TECHNICAL SERVICES
97-99 Worton Road
Isleworth Middlesex
TW7 6EG
Technical Helpline :- 020 8758 0338 (Mon-Fri during office hours)
Website: http://www.robertsradio.co.uk
Issue 1
Guarantee
This instrument is guaranteed for twelve months from the date of delivery to the original owner against failure due to faulty work-
manship 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 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 instru-
ment 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.
These statements do not affect the statutory rights of a consumer.