Demonstration Mode; Preventive Maintenance - Philips DC512 Operating Instructions Manual

NOTES
PUA
DEMONSTRATION MODE (FOR THE DEALER)
in this mode the display shows the main features of the set.
Switching ON demo mode:
[1] While keeping the Preset 1 and Preset 5 keys pressed, switch on the set.
Keep the Preset 1 and Preset 5 keys pressed.
The set remains in the demonstration mode, even if you switch the set off and then on
again.
=
Switching OFF demo mode:
Switch off the set.
Follow exactly the same procedure as 'Switching ON demo mode'.
PREVENTIVE MAINTENANCE
Cleaning connectors for detachable keyboard
To ensure good connection between the set and the detachable part, it is advisable
to clean the connectors with a cotton swab from time to time.
Cleaning cassette player tape head (and tape path)
Dust, contamination or grime can accumulate on the tape head after extended use
of the cassette player. This results in diminishing high-note reproduction. In the case
of severe contamination, reproduction of one or both channels may totally fail.
Clean the tape head (once or twice a month) using a weltype cleaning cassette.
* only for certain versions.
23