Roberts Radio CR950 manual General, Mains supply, Fuse, Backup Battery, Automatic Time Setting

Models: CR950

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General

Do not allow this unit to be exposed to water or steam. Do not leave the unit where excessive heat could cause damage. 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.

Mains supply

The CR950 will operate from a supply of AC 230-240 volts, 50Hz only.

For your convenience this product is supplied with a plug which is fitted with a fuse of the appropriate rating. If the plug supplied is not suitable for your socket outlet, it should be removed by unscrewing the plug top, the terminal screws, and removing the cable.

The correct style of plug to suit your household together with a correctly rated fuse should be fitted.

IF IN DOUBT - CONSULT A QUALIFIED ELECTRICIAN

IMPORTANT. DO NOT make any connection to the larger terminal which is marked with the letter E or by the safety earth symbol or coloured Green or Green-and-yellow.

The wires in the mains lead are coloured in accordance with the following codes :-

BLUE - NEUTRAL BROWN - LIVE

As these colours may not correspond with the coloured markings identify- ing the terminals in your plug, proceed as follows:

The wire coloured BLUE must be connected to the terminal marked N or coloured BLACK.

The wire coloured BROWN must be connected to the terminal marked L or coloured RED.

If you need any further advice, please

call our Technical Helpline on

0181 758 0338 (Mon-Fri)

Fuse

This apparatus must be protected by a 3A fuse (BS1362) in a 13A plug (BS1363). If another type of plug is used a 5A fuse should be fitted in the plug, adaptor or distribution board.

IF IN DOUBT - CONSULT A QUALIFIED ELECTRICIAN.

Backup Battery

Slide the battery cover (22) in the direction of the arrow. Fit a 9 volt IEC size 6LR61 (6F22, PP3) or equivalent battery into the compartment. Replace the battery cover. The time and alarm settings will be retained during a temporary failure of the AC mains supply. The LED display will not be operational but the Radio and Buzzer alarms will continue to function.

Automatic Time Setting

Connect the CR950 to the mains supply, the built in microprocessor will automatically activate the receiver of the Radio Controlled clock and initiate a search for the time signal.

When the CR950 is receiving the radio time signal, the seconds digits will appear in the display and the colon will flash once every second in time with the radio time signal. When the time setting process has been completed, the exact time and day of the week will appear in the display.

The CR950 receives the sycronisation signal from one of the most accurate clocks in the world. The signal is transmitted from the official UK standard frequency and time signal transmitter MSF located at Rugby in the U.K. Note : During ?? the MSF transmitter closes down for maintainence during this time it will be necesarry to set the clock manualy (see the section headed Setting the Time and Date Manually). The CR950 will automaticaly synchronise with the MSF time signal when the transmitter is switched on.

Automatic Synchronization

Once the time has been set by the radio time signal, the CR950 will continue running on its internal precision 4.19 MHz quartz time base, with synchronisation to the radio time signal taking place once every hour starting at the 54th minute.

The precision of the CR950 is not significantly affected even if synchroni- sation is successful only a few times per day.

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Roberts Radio CR950 manual General, Mains supply, Fuse, Backup Battery, Automatic Time Setting, Automatic Synchronization