JVC GY-HD250U 117 page operator's manual for the GY-HD250U - Page 12

e_hd250.book Page 8 Tuesday, October 24, 2006 3:11 PM INTRODUCTION Battery Pack to be Used The GY-HD250/GY-HD251 can use any of the following batteries. (Factory setting) U model: Anton Bauer battery E model: IDX battery Recommended batteries U model: Dionic 90 (Anton Bauer) E model: Endura-7 (IDX) CAUTION Use only the recommended batteries. If a heavy battery is used, the battery may fall out depending on the way the HD camera recorder is used. Videocassette to be Used • Use JVC's videocassette tapes marked with the A symbol. • Mini DV videocassette : M-DV63HD M-DV63PROHD * Do not use M-DV80. • Videocassettes cannot be used upside down. • Avoid storing a videocassette with its tape not being com- pletely wound, as this may damage the tape. Rewind it to the beginning before placing a cassette into storage. • Store videocassettes in a place with little humidity and good ventilation where mould does not form. • After a videocassette tape has been used repeatedly, it becomes unable to maintain full performance due to an increase in noise caused by dropouts, etc. Do not continue to use a dirty or damaged tape, as this will reduce the rotary head life. • Videocassette tapes with the A symbol are provided with a switch on the back to prevent accidental erasure. • Slide the switch to SAVE to protect the required recording in the tape from being overwritten. • To record on the tape, slide the switch to REC. Switch For recording and storing videotapes in the best condition Observe the following instructions for the best recording and storage of videotapes. • Take care of the conditions of handling videotapes. It is recommended that you record and store videotapes in the environment below. Temperature Humidity Hourly temperature change Hourly humidity change Recording 17°C to 25°C 30% to 70% Less than 10°C Less than 10% Storage Short period (Up to 10 years) Long period (Over 10 years) 15°C to 23°C 15°C to 19°C 40% to 55% 25% to 35% H H H H • Do not leave the videotapes neglected for a long period. If videotapes are left wound for a long period of time, it may result in distortion of the tape. Also it may cause tape-totape adhesion (known as blocking). It is recommended that videotapes be unspooled and rewound once a year for refreshing. • When tapes are not in use, store them in cases and on end. Storage cases protect videotapes from humidity, dust and ultraviolet light. Keep tapes in cases and do not store them lying flat. When housed in a horizontal position, pressure from other tapes can cause distortions and deformations of the tape edges. 8