[Keith]

High line/navigation
The service mode for the harmony head unit is accessed by switching ‘on’ the radio unit using the
right hand rotary control and within eight seconds press and hold the left hand side of the
'TRAFFIC' button for a minimum of eight seconds. Using the radio seek up/tape forward button (>)
select the required option from the list in the display. From there you can change the settings in
the list below.
1. Displays the serial number.
2. Displays the software version.
3. Displays the AVC setting in a range from GAL 1 to GAL 6. (default value is GAL 1 the
remaining numbers, GAL 2 to GAL 6, are used to provide differing levels of output). Selecting
the levels is done by pressing the station preset buttons one to six.
4. Displays the frequency, programme service (PS) name, field strength, field quality and
programme information (PI), it is possible to check out each of the preset stations by using
the appropriate preset buttons and the frequency selector button (AM/FM button). The field
strength is shown as F—, where F00 is the weakest signal and F15 being the strongest signal.
The quality is shown as Q—, with Q00 being the lowest quality and Q15 being the best quality.
5. Displays the seek level as either a one or a two. This is adjusted using preset buttons one and
two.
6. Displays the TP volume. This can be adjusted using preset buttons one and two to adjust the
TP volume between –9 and +9.
To exit service mode switch the unit 'off'.