THE TRILEVELSYNC LOCKIT BOX Timecode, Videosync, Trilevelsync, Wordclock, AES-3 Black Audio Generator ACL 203 Description and instructions for use AMBIENT RECORDING GmbH Schleissheimer Str 181 C, D-80797 Munich Germany Te+49 89 6518535 Fax+49 89 6518558 Email: info@ambient.de internet: www.ambient.
The Lockit synchroniser ACL 203 Description The Ambient Lockit ACL 203 is a highly accurate portable timecode and video sync generator. Audio and video machines such as DAT, harddisc and DVD recorders and HD and Digibeta cameras can be synchronised to the Lockit box, thus giving very low drift between machines, allowing multicamera shoots to be carried out without cables or timecode radio links.
1.1 Controls All changes of the settings take effect only after reboot of the unit. Exception: TC-lockout / userbit insert with dip switch 1 Yellow Switch: Main On/Off Rotary encoder switches with 16 positions behind the battery lid: Switch 1: Type of sync signal: This switch determines what type of signal is present on the BNC connector next to the edge of the unit. Pos. A turns off the video signal / audio generator if used as time code genearator only to save battery life. Pos.
Dip switches behind USB connector: There are 4 dip switches behind the USB connector: Nr. 1 2 3 4 Description LTC-In Mode Battery voltage ref. Battery voltage ref. Not assigned Battery voltage reference: dip switch 2 dip switch 3 0 / Off 0 / Off 1 / On 0 / Off 1 / On 0 / Off 0 / Off (up) Set Time Code see below 1 / On (down) Insert Userbits battery type alkaline NiMH rechargeable Lithium battery threshold 2,2 Volts 2,4 Volts 2,5 Volts 1.
Flashes / secs. 1s 2s 3s 4s Normal X X X X Userbit insert -- ----- -- ----- -- ---- -- ---- (short - long) Batt. Low X X Video not sync w. TC X X Video. TC async + Batt low X X X X X X X X X X X X X X X 1.4 Batteries, Powering. The Lockit is powered by 2 Mignon cells (3volts). It is recomended to use Alkaline cells or rechargeable NiMH batteries. Please see voltage reference chart above.
2.1 Setting the Lockit TC generator from external source A. External timecode. Insert an external timecode source 0.5 volts up tp 5 volts pp. With successful jam sync the LEDs will go from red to green, then flash irregularly for about two seconds untill the PLL has locked and video / sync signal is put out, then go to the normal once per second mode If they were on green (unit was jam synced before and is being rejammed), the green LED will flash like after first jam.
and Pull down frame rates are used together respectively. ie 24,25 30 Fps together, and 29.97. 23.98 Fps together. • This feature can be used to jam the lockit once to a playback timecode Using a transmitter and receiver on the Lockit box. The lockit will jam once to the incoming playback timecode and also ignore RF dropouts of up to 3 seconds. Note Playback TC of a Video player is often jittery and cannot be read by a camera. The Lockit delivers smooth code and sync.
3.1 Connectors: Lemo Socket (mating cable connector FGG/JGG.0B.305.xxx): pin 1 Ground pin 2 LTC in pin 3 ASCII in/out pin 4 6-16 volt input Tune reference out 1.92 MHz pin 5 LTC out USB connector for setup or firmware upgrade, type mini-A 3.2 Dimensions Input/output voltagesS • Size 100mm X 74mm X 26mm • Weight 250 Grms without batteries • TC input 0.1 to 5 volts pp • TC output BNC 1 volts pp • Video out 1 volt pp on 75 Ohm 3.3 Accessories Supplied accessories: - Pouch ACL-T - BNC to BNC cable approx.
8
