Panasonic AJHD1400 AJHD1400 User Guide - Page 26
Recording from a variable frame rate camera, Recording the HD SDI output signal from a variable - aj hd1400
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Recording from a variable frame rate camera Recording the HD SDI output signal from a variable frame rate camera Connect the HD SDI (720/30Pover 59.94P) output of the variable frame rate camera to the HD SDI input connector of this unit. 1 Select "SLTC" in menu No. 032 REC REF. Detect the frame information from the superimposed time code in the HD SDI signal to prevent displacement of the field. 2 Adjust the following settings to activate the two settings. z Menu No. 25 SYSTEM FREQ: 59/60 z Menu No. 020 SYS FORMAT: 720p z INPUT SELECT button on the front panel: HDSDI 3 Change the mode for this unit to REC PAUSE mode. 4 Press the PAUSE button while confirming the HD SDI output image of the variable frame rate camera to start recording. The time code is recorded to maintain the continuity of the recorded tape. The superimposed user bits for the HD SDI signal is recorded. Through the settings in menu No. 032 REC REF, the time code and the user bits recorded on the tape are as follows. SLTC: The time code is recorded to maintain the continuity of the recorded tape. The superimposed user bits for the HD SDI signal is recorded. The following settings are then invalid. z TCG switch on the front panel (REGEN/PRESET/EXT) z Menu No. 503 TCG_MODE (SW/AUTO) z Menu No. 505 TCG_REGEN (TC&UB/TC/UB) z Menu No. 507 TC_SOURCE (EXT_L/SLTC/SVITC) NORMAL: Time code and user bits are recorded according to the following settings. z TCG switch on the front panel (REGEN/PRESET/EXT) z Menu No. 503 TCG_MODE (SW/AUTO) z Menu No. 505 TCG_REGEN (TC&UB/TC/UB) z Menu No. 507 TC_SOURCE (EXT_L/SLTC/SVITC) Field displacement There is no discriminant information to differentiate between the first field and the second field in the HD SDI signal of 720P. Accordingly, it is usually necessary to synchronize the HD SDI signal transmission equipment to the recording equipment with the reference signal from SD. If not synchronized, there is a risk of generating displacement (image frame fails to match the time code) with 1/2 probability described as follows. Variable frame rate camera 720/30P over 59.94P AJ-HD1400 Video output of variable frame rate camera AABBCCDDEEF Time code output of variable frame rate camera 00 01 02 03 04 05 Record image of VTR ABBCCDDEEE Record time code of VTR 00 01 02 03 04 To prevent displacement of this field, select "SLTC" in menu No. 032 REC REF when recording the HD SDI output signal from a variable frame rate camera (720/30P over 59.94p) with this unit. 26