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Setting Up the 20DS – Page 11
38DHB0002UKCN – Issue 3 March 2000 INDeX 20DS User's Guide
Testing the Keys & Lamps
The 20DS has a test cycle that checks all it's lamps and keys. You can
do this without affecting the unit's programming (i.e. your phone and
DSS key settings).
To test the keys and lamps:
1. Turn the 20DS's power supply off.
2. Whilst holding down the bottom-left DSS key, switch the power
supply back on and then release the DSS key.
3. All the key lamps will come on green and you will hear a tone. All the
key lamps will then switch to red and again you will hear a tone.
4. Only the top-left three DSS keys will now be on with green lamps.
5. Pressing the top-left DSS key again will now illuminate all the red
lamps.
6. Pressing the top-left DSS key will illuminate all the green lamps.
7. Pressing the top-left DSS key yet again will switch all the lamps off.
8. Pressing any DSS key now will switch its lamp on/off in a red/green
cycle.
9. To end the test, simultaneously press any two DSS keys in different
columns.