Hum when using mains adapter, Poor sound/ no sound, Severe radio hum/ distortion – Philips AQ 6688/17 User Manual

Page 9: Warning, Possible cause, Headphones plug not fully inserted, Volume is turned down, Tape head dirty, Adapter used is unsuitable, Em aerial (headphones cord) not fully extended

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If a fault occurs, first check the points listed below before taking the set for repair. If you are unable to remedy a problem by

following these hints, consult your dealer or service centre.

WARNING:

Under no circumstances should you try to repair the set yourseif, as this wiii invalidate your

guarantee.

PROBLEM

POSSIBLE CAUSE

• REMEDY

Hum when using mains adapter

Poor sound/ no sound

Headphones plug not fully inserted

• Insert plug fully

Volume is turned down

• Turn up volume

Tape head dirty

• Clean tape head (see MAINTENANCE)

Severe radio hum/ distortion

Adapter used is unsuitable

• Use a Philips SBC6650 or other standard regulated 3V DC

adapters

EM aerial (headphones cord) not fully extended

• Extend FM aerial fully

Set too close to TV, computer, etc.

• Move set away from other electrical equipment

Batteries weak

• Insert new batteries

Front panel controls/ display does not function properly

Electrostatic discharge

• Use a bail-point pen to press the RESET button and then

reprogramme settings

Auto reverse occurs before end of tape

High friction on tape

• Try fast winding the tape once

The model number is found at the bottom of the set and the production number in the battery compartment

This set complies with the radio interference requirements of the European Union.

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