Roberts Radio C9950 manual Cleaning the heads, Preventing accidental erasure

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Cassette tapes

High quality 90 min (C90) tapes are recommended for use in your cassette recorder. In tests these provide a balance between maximum recording time and prolonged tape life. Audio cassette tapes are available up to 120 minutes in length, however the tape material is thin and may stretch or break during recording or playback & are not recommended for use with your cassette recorder.

Cleaning the heads

The binder and oxide from magnetic tapes can accumulate on the pinch roller (A) the capstan shaft (B) and also the heads (C and D). This will impair the sound quality.

To clean these parts proceed as follows:-

1. Turn off the power to the unit.

2. Press the Stop/Eject button.

3. Press the Play button and the heads will be clearly seen.

4. Clean the surfaces (A, B, C, D) with a lint free rag or cotton swab soaked in industrial alcohol. Press the stop/eject button as soon as cleaning is over.

Preventing accidental erasure

Safety tab side A

 

Safety tab side B

To safeguard your recordings against accidental erasure, break off the

 

 

 

 

 

 

 

 

 

 

 

 

 

appropriate rear tab on the cassette as shown . There is one tab for each

 

 

 

 

 

 

 

 

 

 

 

 

side of the cassette. This will prevent the Record button from being

 

 

 

 

 

 

 

 

 

 

 

 

pressed. To restore the cassette to normal, seal the tab openings with a

 

 

 

 

 

 

 

 

 

 

 

 

small piece of self-adhesive tape.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents C9950 Contents Controls Timer activator socket Timer Display Carrying handle Battery operation & installationUsing the AC adaptor Using headphones not includedCassette Tapes Setting the clock and day of the week Listening to cassette tapes Tape speedRecording from a radio Recording from the internal microphone Recording from the line in socket To the Line In socket Recording from an external microphone not suppliedTimed recordings Timed recordings Voice activated recordings Voice activated recording with timer Remote switch operation Press the Record button Recording a telephone callLine out socket Preventing accidental erasure Cleaning the headsGeneral Specifications Circuit FeaturesGuarantee Roberts Radio Technical Services