Roberts R761 User manual

R761

3 Band

Portable Radio

Please read this manual before use

ROBERTS

Sound for Generations

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Contents

Contents ................................................................................................................................................................................... 1

Controls ................................................................................................................................................................................. 2-3

Battery Operation ..................................................................................................................................................................... 4

Mains Operation (via AC adaptor) ........................................................................................................................................... 4

Operating your radio - FM ........................................................................................................................................................ 5

Operating your radio - Medium and Long wave ...................................................................................................................... 6

Headphones............................................................................................................................................................................. 7

General .................................................................................................................................................................................... 7

Specifications ........................................................................................................................................................................... 8

Notes ........................................................................................................................................................................................ 9

Guarantee .............................................................................................................................................................................. 10

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If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 2

Controls (Top)

1. Headphone socket

2. On/Off and Volume control

3. Tone button

4. FM button

12345678

5. MW button

6. LW button

7. Tuning scale

8. Tuning control

9. Telescopic aerial

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Controls (Left hand end)

9. DC socket

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If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 4

Battery operation

Reduced power, distortion, and a ‘stuttering’ sound are all signs that the

battery may need replacing.

If the radio is not to be used for any extended period of time it is

recommended that the battery is removed from the radio.

1. Remove the battery cover on the base of the unit by unscrewing the

retaining stud using a suitable coin or screwdriver.

2. Fit the battery IEC 6F100 (PP9) to the connector.

3. Replace the battery cover and refit the stud.

Mains operation (via AC adaptor)

The AC adaptor for use with the R761 should provide 9 volts DC output

at 300mA centre pin negative (Roberts type PU609).

1. Insert the adaptor plug into the DC socket on the left side of your

radio. Plug the adaptor into a standard 13A mains socket outlet.

Whenever the adaptor is used the batteries are automatically

disconnected.

2. The AC adaptor should be disconnected from the mains supply and

the radio when not in use.

We would recommend for economy that the R761 be used via the AC

adaptor whenever possible with battery operation for occasional or

stand-by use only.

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Operating your radio FM

1. Switch on your radio by rotating the Volume control clockwise until

a click is heard.

2. Press the FM button to select the FM waveband.

3. Adjust the Volume control until a sound is heard.

4. For FM reception fully extend the Telescopic aerial and then angle

and rotate for best reception.

5. Rotate the Tuning control to select the desired station. On FM the

Tuning scale is marked in Megahertz (MHz).

6. Adjust the Volume control to the required setting.

7. Adjust the Tone control to the required setting.

8. To switch off your radio rotate the Volume control fully anticlock-

wise until a click is heard.

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If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri)

Operating your radio (Medium and Long wave)

1. Switch on your radio by rotating the Volume control clockwise until

a click is heard.

2. Press either the MW or LW button.

3. Adjust the Volume control until a sound is heard.

4. For MW or LW reception rotate your radio to the position giving best

reception.

Note : The telescopic aerial is inoperative on MW and LW.

5. Rotate the Tuning control to select the desired station. On MW &

LW the Tuning scale is marked in Kilohertz (kHz).

6. Adjust the Volume control to the required setting.

7. Adjust the Tone control to the required setting.

8. To switch off your radio rotate the Volume control fully anticlock-

wise until a click is heard.

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Headphones

1. A Headphone Socket (3.5mm) located on the left hand end of the

top panel is provided for use with either headphones or an earpiece.

Inserting the headphone plug automatically mutes the internal

loudspeaker.

General

Do not allow this unit to be exposed to 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. 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

or LW bands.

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If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 8

Specifications

Power Requirements

Mains (via AC adptor) AC 230 volts, 50Hz only

Battery 1 x IEC 6F100 (PP9)

Battery Life Approx. 80hrs of listening for 4 hours a

day at normal volume.

Circuit Features

Loudspeaker 92mm 4ohms

Output Power 1W into 4ohms

Headphone socket 3.5mm dia

Aerial System FM Telescopic aerial

MW Built-in Ferrite aerial

LW Built-in Ferrite aerial

Frequency Coverage

FM 87.5 -108MHz

MW 522 - 1620kHz

LW 150 - 281kHz

The Company reserves the right to amend the specification without notice.

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Notes:

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If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri)

Guarantee

This instrument 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 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