Tascam DA-98HR Owner's Manual

Also see for DA-98HR: Setup guide Service manual

Contents

Tascam DA-98HR Owner's Manual Manual pdf 20 page image

3 – Connections–Synchronization connections20 TASCAM DA-98HRIn all other cases, the data is transferred according tothe following table, where the numbers represent thetrack which is being transferred. Italicized numerals(e.g. 2) indicate that the signal is being transferred atdouble speed:3.2 SynchronizationconnectionsThe DA-98HR is equipped with sophisticated facili-ties for control and synchronization with other units.For full details of how to operate the DA-98HR withother DTRS units, see 8, “DTRS synchronization”,and for details of timecode synchronization, see 9,“Operations related to timecode”.3.2.1 Analog timecode connectionsThe DA-98HR can be synchronized to externally-generated timecode and is also equipped with aninternal timecode generator.The two XLR timecode connectors l carry bal-anced signals with the following polarity:However, unbalanced signals may be used, with onlypins 1 and 2 connected.The TIMECODE OUT connector transmits internally-generated timecode or re-shaped or re-generatedtimecode echoed from the TIMECODE IN connector.3.2.2 Video connectionsThese BNC connectors n are used to provide videoframe reference clocking when the DA-98HR is usedwith video equipment.The front panel CLOCK switch j is used to changebetween clock sources, and should be set to VIDEOwhen synchronizing to video sync.Connect the VIDEO IN connector of the DA-98HR tothe VIDEO OUT of a video sync generator unit.This signal should be a 1 Vp-p composite signal.If other equipment (such as other DTRS units) alsoneed the video frame reference clock, the signalreceived at the VIDEO IN is echoed at the VIDEOTHRU connector.If the DA-98HR is the last unit in the chain of videoequipment, there is no need to terminate it, as thiscircuit is self-terminating.For details of how the DA-98HR can be synchro-nized to video frame information, see 9.7, “Videoresolution”.3.2.3 Word sync clock connectionsThis set of BNC connectors o is used to synchro-nize the DA-98HR to other digital audio devices.The front panel CLOCK switch j is used to changebetween clock sources, and should be set to WORDwhen synchronizing to an external word sync clock.The IN jack should be connected to the WORDSYNC OUT of the digital audio device from whichthe DA-98HR is to receive the synchronization clock.Note the difference between the OUT and the THRUconnectors. OUT is used to carry word clock signalsgenerated by the DA-98HR, and THRU is used toecho the signals received at IN.If the DA-98HR is the last unit in the word clockchain, there is no need to terminate it, as this circuitis self-terminating.Also note that if the DA-98HR is connected to otherDTRS units using a PW-88S cable as described in 8,Outputchannel4x (2 tracks) 2x(4 tracks)2x (3 tracks) +base (2 tracks)2x (2 tracks) +base (4 tracks)base (8 tracks)HSaa.High speedDLbb.Dual line1 1 1 1 1 1 12 1 2 1 1 1 23 — — 2 2 2 34 — — 2 2 2 45 2 3 3 3 3 56 2 4 3 3 4 67 — — 4 4 5 78 — — 4 5 6 8Pin # Connection1 Ground2 Hot3 ColdIN (balanced) OUT (balanced)Level 0.5 Vp-p to 10.0Vp-p 2Vp-pImpedance > 10kΩ < 100 Ω