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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 four LR6 (AA size) batteries into the spaces in the compart-
ment. Take care to ensure all batteries are inserted with the correct
polarity as shown inside the battery compartment. 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.
Operation via an AC adaptor (not included)
The AC adaptor for use with the R9993 should provide 6 volts DC output
at 300mA centre pin negative (Roberts type PU6-B).
1. Place your radio on a flat surface.
2. 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 automatically disconnected.
3. Plug the adaptor into a wall socket and switch on.
• The unit remains connected to the mains even when it is switched
off. The unit is only fully isolated from the mains if the AC adaptor
is removed from the wall socket.
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r9993 instruction book.PMD 5/16/2005, 2:49 PM4