DaySequerra M4 Series Podręcznik użytkownika - Strona 8

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In any mode, if the SELECT and DN switches are depressed simultaneously for 5 seconds, tuner goes

into Standby mode with all front panel controls and indicators inoperative except for SELECT and UP

switches; the M4's VFD then indicates the "DaySequerra Standby" message. Holding SELECT together

with UP switch in for 5 seconds when in standby mode re-activates all front panel controls and

indicators and returns tuner to normal operation.

Front Panel Locked. In any mode, if SELECT and MODE – SERVICE switches are depressed

simultaneously for 5 seconds, tuner goes into Front Panel Locked mode; i.e., all front panel controls are

inhibited except for UP and SELECT switches; analog and digital audio outputs continue.

VFD

alternates between displaying FRONT PANEL LOCKED and normal display for tuned station.

Momentary simultaneous push of SELECT and UP switches in Front Panel Locked mode restores all

front panel controls and indicators, and returns tuner to normal operation. VFD displays "Exiting Front

Panel Locked Mode" message during tuner state transition.

Audio Muting. The M4's audio output can be set to automatically mute for received signals with signal

strength less than 45dBf.

The audio muting can be enabled using the DATA - DISPLAY menu

described previously.

Tuner Band Control. TUNER BAND control toggles between manual AM and FM tuning. TUNER

BAND arrow LED illuminates only when mode is active. Audio muting is active while tuning.

Presets Control. In PRESETS tuning mode tuner has ability to store 20 AM stations and 20 FM

stations including FM-HD multicast signals.

Preset stations are stored for recall in positions A1 through A20 and F1 through F20 respectively for

AM and FM bands. PRESETS Arrow LED illuminates when tuner is in PRESETS tuning mode. UP and

DN scroll through the preset stations stored for the band selected.

Audio MUTING is active while

scrolling through preset stations. Second momentary push of PRESETS switch changes tuner band.

When tuner has acquired any station and SELECT switch is held for three seconds, tuner enters

PRESETS store mode and PRESETS arrow LED flashes. UP and DN controls then allow user to scroll

through A1 through A20 and F1 through F20 dependant on band. When the desired preset location is

indicated on VFD, next momentary push of SELECT switch stores selected station in that PRESETS

position.

Mode - Service Control. MODE - SERVICE control selects AUTO or ANALOG mode, and activates

multicast tuning when an HD Radio

multicast signal is present. In the AUTO mode, the tuner will

receive an HD Radio

digital broadcast if one is being transmitted; if not, the tuner will receive the

analog broadcast. The MODE - SERVICE LED illuminates when only the mode is active or when the

switch is being pushed.

Default mode is AUTO.

When tuned to an HD Radio

broadcast and at least one multicast signal is present, momentarily

depressing the MODE – SERVICE switch selects the multicast tuning mode; the M4 is automatically

tuned to the first multicast broadcast, probably HD-2. The UP and DN controls can then be used to tune

to the other multicast stations; i.e., HD-3 through HD-8, available on that RF frequency.

When tuned to an HD Radio

broadcast and the MODE - SERVICE switch is depressed for 5

seconds, the tuner is forced into ANALOG-only mode; the M4 is then locked only to the analog

broadcast signal and the audio outputs provide only the analog portion of the HD Radio

broadcast.

M4 User Manual