Troubleshooting – Philips AQ 6549/00 User Manual
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Troubleshooting
If a fault occurs, first check the points listed below before taking the unit for repair. If you are unable to
remedy a problem by following these suggestions, consult your dealer or service centre.
Warning
Under no circumstances should you try to repair the set yourself, as this would invalidate your guarantee.
Problem
Poor sound quality
- Cause
• Solution
No power
- Wrong battery polarity
• Insert batteries correctly
- Batteries exhausted
• Replace batteries
Hum when using mains adaptor_________________
- Adaptor used is not regulated type
• Use Philips SBC6650 or other standard regulated
3 V DC adaptor
No sound
■ Volume is not turned up
Turn up volume
Headphones is not connected
Connect headphones jack into headphones
socket
- Headphones plug not fully inserted
• Insert plug fully
Unit does not react to operation of any button
- Electrostatic discharge
• Press RESET button using ballpoint pen (hole on
back of set)
Display is not working properly_________________
- Electrostatic discharge
• Press RESET button using ballpoint pen (hole on
back of set)
No memory
Batteries are exhausted
Replace with new batteries, then re-program
settings