Sony HDFX-200 Operation Guide - Page 8

Usage Precautions If the unit is suddenly taken from a cold to a warm location, or if ambient temperature suddenly rises, moisture may form on the outer surface of the unit and/or inside of the unit. This is known as condensation. If condensation occurs, turn off the unit and wait until the condensation clears before operating the unit. Operating the unit while condensation is present may damage the unit. The life expectancy of the electrolytic capacitor is about 5 years under normal operating temperatures and normal usage (8 hours per day; 25 days per month). If usage exceeds the above normal usage frequency, the life expectancy may be reduced correspondingly. Installation environment Make sure that the installation environment fulfills the following requirements: • Dry and well ventilated • Not subject to high temperatures or close to heat sources • Not subject to strong electric or magnetic fields • Not exposed to direct sunlight, strong lamps or similar To prevent electromagnetic interference from portable communications devices The use of cellular phones and other communications devices near this camera can result in malfunctions and interference with audio and video signals. It is recommended that the portable communications devices near this camera be powered off. Digital Triax Transmission A powerful error-correction function is incorporated for the transmission between the camera and CCU. However, if an error occurs on long-distance transmission because of external noise or for some other reason, the compensation by interpolation that partially uses the previous picture may operate. In digital triax transmission, the following video delay in transmission may occur: • The video delay in transmission between the camera and the CCU is approx. 9 msec to 12 msec. • A delay of about 1 frame occurs on the viewfinder display if a camera image is sent back from the CCU to the camera as a return signal. • The prompter video will delay approx. 3 frames. There will be some changes in picture quality and active area, and dropped frames may occur depending on the type of prompter video. • An appropriate delay is applied to the MIC 1 and 2 audio signals from the CCU according to the video delay. • It takes a certain time until the video signal transmitted between the camera and the CCU becomes stable after power is applied. This is not a malfunction. Triax transmission distances The maximum and minimum transmission distances allowed for triax cable connection are shown in the table below. The distances may vary according to the conditions, such as the total power requirements (including the power supply to the camera from the HDFX200) and cable degradation. Allowable transmission range when using triax cables with the following characteristics: Attenuation: 3.8 dB to 53.2 dB at 100 MHz (including the loss at connectors) Cable (for example) Fujikura 8.5-mm dia. Fujikura 14.5-mm dia. Belden 13.2-mm 9232 dia. Max. distance Min. distance 700 m (2297 ft) 50 m (164 ft) 1400 m (4593 ft) 100 m (328 ft) 1000 m (3281 ft) 75 m (246 ft) 8 Usage Precautions