Tascam X-48MKII Owner's Manual

TASCAM X-48MKII 37TDIF Port 1TDIF Port 1 clocks the X-48MKII from the digital audiosignal coming into the TDIF Digital Input channels 1-8.If you have digital audio option cards installed (IF-AD24(X)/ IF-AE24(X) ), those will show up as an available clocksource as ‘ADAT Card’ / ‘AES/EBU Card’.When in doubt, use Word Clock as the reference source. Tochange the clock source:Mouse/Keyboard Operation• Click the Windows menu and select theSettings window.• Click the Sync tab and click the Source item in theSample Clock section.Choose your desired master clock from the list.Front Panel Operation1 Press the SYNC button. Press the 5/b buttons toselect Sample Clock Source and press CHNG.2 Select a clock source from the list using the 5/bbuttons and press Enter.BNC Clock In/BNC Clock OutThese parameters allow the word clock signal input oroutput to be multiplied or divided by 2, or used as-is. Thisallows, for example, a 48 kHz word clock generator to beused when recording at 96 kHz, or allows 48k and 96kdevices to be used at the same time.To change these settings:Mouse/Keyboard Operation1 Click the Windows menu and select theSettings window.2 Click the Sync tab and click the BNC In or BNC Outitem in the Sample Clock section. Choose a settingfrom the list.Front Panel Operation1 Press the SYNC button. Press the 5/b buttons toselect BNC Clock In or BNC Clock Out andpress CHNG.2 Use the 5/b buttons to select a setting andpress Enter.BNC Word Clock Output PolarityThis setting allows the Word Clock signal outphase to bereversed. This may be necessary in large systems or withlong cable runs.Mouse/Keyboard Operation1 Click the Windows menu and select the Settingswindow.2 Click on the Sync tab and check the box labeledInvert Word Out Polarity.Front Panel Operation1 Press the SYNC button. Press the 5/b buttons toselect Word Out Polarity and press CHNG.2 Use the 5/b buttons to select either Normal orInverted and press Enter.Video Clock Frame-Edge ResolveVideo Clock in the X-48MKII can be used to define theframe edge of incoming and generated timecode forstability and repeatability. (But not as a sample clocksource, see ”Requirements” on page 35.)To enable video clock:Mouse/Keyboard Operation1 Click the Windows menu, select the Settings windowand click the Sync tab.2 Check the box labeled Resolve to Video In in the TimeCode area.Front Panel Operation1 Press the SYNC button. Press the 5/b buttons toselect Resolve to Video In and press CHNG.2 Press the 5/b buttons to select On and pressEnter.Frame RateThe X-48MKII syncs to any frame rate of SMPTE timecode:30-frame non-drop (30 NDF)• is occasionally used inmusic studios to sync console automation to a tapemachine (2” reel-to-reel tape may be striped with thisformat)30-frame drop (30 Drop)• is rarely used29.97 non-drop (29.97 NDF)• is the standard for non-broadcast post-production in the U.S.5 – Recorder