User manual

M3#User#Manual#
7"
UP and DN – For manual AM and FM tuning in TUNER BAND mode and scrolling through PRESETS
in PRESETS mode. Also used to navigate Mode Service, Forcing and Data Display menus, as
described below.
SELECT – Multi-function switch for selecting multicast tuning, storing PRESETS and controlling other
tuner functions, as described herein.
HD LOCKED – Blue LED indicator illuminates when tuner has acquired OFDM portion of an HD
Radio
TM
signal and digital carrier SN is > 58dB/Hz, thereby permitting HD Radio
TM
digital audio to be
valid.
MULTICAST – Blue LED indicator illuminates when tuner has acquired OFDM of an HD Radio
TM
signal
and there is at least one multicast signal present, i.e., HD-2 through HD-8.
DELAY SET – Blue LED indicator illuminates when tuner has acquired OFDM of an HD Radio
TM
MPS
signal and the analog diversity delay is active. The LED is off when there is no delay bit set, i.e. “ball
game mode” meaning that the analog program has not been delayed to be coincident with the HD
Radio
TM
MPS signal.
TUNER ALARM – Red LED indicator identifies a detected alarm condition in any tuner module.
It is solid when any alarm on the selected tuner has been enabled. When an alarm condition occurs,
the tuner module’s LED flashes, the beeper beeps and the appropriate rear panel contact closes.
M3 Front Panel Layout
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HEADPHONES. Headphone stereo output is via a recessed front panel mounted mini-TRS jack.
Pressing and holding the MODE – SERVICE button will allow you to access the headphone output
adjustment screen. The up and down buttons will adjust your headphone output accordingly. When
desirable level is set, press SELECT to save your settings and exit the menu. Default set at the factory
is 50mV.