TV Broadcast Car is a TV video, live, the importance of program production equipment, flexible and convenient it can participate in various programs, events, production and live. Performance and car body stable and reliable systems for recording programs play a decisive role in the success or failure. Do broadcast vehicle maintenance adjustments, equipment upgrades and systems reasonably timely transformation of the broadcast to play the best performance cars is extremely important.
Qinghai TV-Channel Digital 3 +1 DSNG vehicle was broadcast by the British Staercke integrated camera used for the part of three THOMSON LDK-300 common set of LDK-300 cameras and wireless cameras VCR The choices are the two Panasonic's AJ-D955MC studio editing recorder, switch some of the choices are the THOMSON's KAYAK-DD-1 digital switching stations and 24 × 6 of the CP300 control panel auxiliary bus, the frame synchronous machine was LEITCH company DPS575AV, synchronous machine and the waveform Monitors , Vector TEKTRONIX oscilloscope is used in the company's SPG-422, ECO-422D, and WFM-601E, TEK-1741A, the star part of the selection of tourmaline in Beijing Radio and TV Technology Co., Ltd. to provide Ku-band equipment. The car factory in July 2004, work has basically in good shape, but in July 2007, and recorded it in a formal out 30 minutes before the accident, still think this is still a lingering fear. In this paper, I state that time and emergency treatment, and subsequent improvements in the equipment to do some research with you and exchange.
One, problems arise and emergency treatment
Downtown square in Xining we were prepared and recorded a 50 into 25 Division Model Contest in Qinghai, the same as before, we do all the video early on preparatory work before, waiting for the official record after 30 minutes broadcast. At this point, switch a few flight director, said suddenly impossible to switch between, so we work quickly check the equipment, results found:
* 24 × 6 of the CP300 control panel auxiliary bus switch lights all go out, can not carry out any operation;
* KAYAK-DD-1 digital switcher can only monitor the image to determine whether the signal cut out, but the switcher and the monitor have no TALLY direction, that is not only not clear whether the DSNG vehicle coverage list cut out the signals which, the scene of a camera operator can not see it cut to his seat;
* Two digital video recorders input signal fixed in a seat at random and no longer follow the digital switcher output MAIN (PGM) signal changes.
Based on the above fault phenomenon, we first suspected CP300 control panel auxiliary bus fault occurred, but open the car door maintenance check, and found no imaginary phenomena such as power off, then we check with the CP300 digital switcher auxiliary bus communication link control panel, still normal. At this time have no time to do any testing, because the time to complete the recording and broadcasting task is urgent, and only take emergency measures. We use the jumper, the CP300 control panel auxiliary bus flare to the director cut out of the MAIN (PGM) signal jump on two video recorders, as to let TALLY guidance the camera switches to inform members of the interim director, a machine for each pre-cut bit on the first member of this camera. We spent a nervous two hours, finally completed the recording and broadcasting tasks.
Second, failure analysis and solutions Back to Taiwan, where we immediately carried out after the inspection, we then knew had just fairly is very lucky, because once turned on, the digital switching platform in addition to the instructions of blue lit power has no display other than, of course, can not be any action was. That is then the number of switching stations and CP300 all auxiliary bus control panel can not be any work. The two devices work flow is to switch the station CAM1, CAM2, CAM3, CAM4, BLACK, COL1-4, BARS, CLEAN, PVW, MAIN (PGM) and other signal output to the CP300 control panel auxiliary bus No. 1-24 Road, and then Control Panel from the CP300 Auxiliary Bus signal through the key points will be sent to VCR 1, VCR 2, 6 monitors and other technology devices that the digital switcher out of trouble, not the signal sent to CP300 Auxiliary Bus Control Panel natural recorder video input signal is not normal; and digital switching platform can not be the signal sent to the TALLY indicator controller, so no instructions of any of TALLY. The above shows the accident have digital switching station in the heart of this broadcast equipment car broke down. We are consulting engineers, manufacturers
the answer was likely the memory of digital switcher Battery A problem. So we open the switcher mainframe front panel, found that the memory cell turned out to be on the market very common button battery, remove the battery measurement, normal 3V 0.7V battery has less than a. Replace the battery, the digital switcher panel light, but all operations still fail, TALLY direction fixed in the original position without any action, indicating that all operations switcher settings are lost, need to use the notebook computers, Direct / cross-line from adapt to the network switch for network installation. Luckily, said manufacturers engineers now have this switch and upgrade of the software, as long as the software upgrade, you can set the stage directly in the switch, the installation operation. We use U disk
THOMSON company's website from download the KAYAK-DD-1 digital switcher upgrade software DS0203.485, the U disk connected to a digital switcher panel USB4, the switcher Touch Screen Click the above sequence INSTALL / SYSTEM / DEVICECONTROL, select KAYAK? CP, click SOFTW.UPDATE / STARINSTALL, start the installation panel upgrade. Then, in the order above, click touch screen INSTALL / SYSTEM / DEVICECONTROL, select KAYAK? MF, click SOFTW.UPDATE / STARINSTALL, upgrade the host to start the installation process.
Upgrade is successful, we begin to install the CP300 control panel auxiliary bus. First of all, the digital switching station touch screen to enter INSTALL / EBOX / AUXCP, double-click the appropriate option, according to CP300 control panel auxiliary bus connection port selection corresponding PORT, TYPE, and MPKAD, this machine MPKAD as 070103A3, this step is complete, CP300 auxiliary bus control panel button lights no longer running. Then go to CONFIG / EBOX / AUXCP, double-click the DELEGATE, the CP300 control panel on the right auxiliary bus six buttons (touch-screen window corresponds switcher I am a professional writer from China Quality Dress, which contains a great deal of information about roller window shade , bamboo window blinds, welcome to visit!
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