JVC GY-HM750U Owner's manual for the GY-HM750 ProHD Camcorder (138 pages) - Page 10

Introduction Precautions for Proper Use (continued) Maintenance Ⅵ Turn off the power before performing any maintenance. Ⅵ Wipe the external cabinet of the unit with a soft cloth. Do not wipe the body with benzene or thinner. Doing so may cause the surface to melt or turn cloudy. When it is extremely dirty, soak the cloth in a solution of neutral detergent, wipe the body with it, and then use a clean cloth to remove the detergent. Batteries Ⅵ The following batteries can be used on this unit. GY-HM750CHU/GY-HM750U :Dionic90 (Anton Bauer) GY-HM750CHE/GY-HM750E :Endura-HL9 (IDX) * Models with an E suffix are for the European market and the UL Listing mark is not applicable. Ⅵ Make use of the recommended batteries. Heavy batteries may fall off if not used correctly. Regular Inspection (Maintenance) Under normal environment, dust will accumulate on the camera recorder when it is used over a long period. Dust may enter the camera recorder especially if it is used outdoors. This may affect the image and sound quality of the camera recorder. Check and replace the fan after every 9000 hours (suggested guideline). You can check the usage time of the fan in the [Others] menu B [System Information] B [Fan Hour]. (A Page 95) If the fan is used for more than 9000 hours without replacement, AFAN MAINTENANCE REQUIREDB will be displayed every time you turn on the power. SDHC Cards Use an SDHC card (4 GB to 32 GB) with Class 6 or higher performance. * Using cards other than those from Panasonic, TOSHIBA or SanDisk may result in recording failure or data loss. Handling of SDHC Cards Ⅵ The access lamp lights up in red when data on the SDHC card is being accessed. Do not remove the SDHC card during data access (such as recording, playback, or formatting). Do not turn off the power or remove the battery and AC adapter during access either. Ⅵ Do not use or store the SDHC card in a place that is subject to static electricity or electrical noise. Ⅵ Do not place the SDHC card near locations that are exposed to strong magnetic fields or radio waves. Ⅵ Inserting the SDHC card incorrectly may result in damage of this unit or the SDHC card. Ⅵ We are not liable for any accidental loss of data stored on the SDHC card. Please back up any important data. Ⅵ Make use of the SDHC card within the prescribed conditions of use. Do not use it at the following locations. Places that are subject to direct sunlight, high humidity or corrosion, places near thermal equipment, sandy or dusty places, or in a car under the sun with the doors and windows closed. Ⅵ Do not bend or drop the SDHC card, or subject it to strong impact or vibration. Ⅵ When formatting or erasing data using the camera recorder, only the file administration information is changed. The data is not completely erased from the SDHC card. If you want to completely erase all of the data, we recommend either using commercially available software that is specially designed for that purpose, or by physically destroying the SDHC card with a hammer, etc. Ⅵ Do not dismantle or modify the SDHC card. Ⅵ Do not touch the terminals with your hands or with a metal object. Ⅵ Do not allow dust, dirt, water, or foreign objects to adhere to the terminals. Ⅵ Do not remove the labels or stick other labels or stickers on the SDHC cards. Ⅵ Do not use pencils or ballpoint pens to write on the SDHC cards. Always use oil-based pens. Ⅵ If you format (initialize) the SDHC card, all data recorded on the card, including video data and setup files, will be deleted. Ⅵ You are recommended to use cards that are formatted (initialized) on this camera recorder. ● The SDHC card may be damaged if the camera recorder is not operated correctly. Formatting (Initializing) the SDHC card may allow it to operate correctly. ● SDHC cards that have been formatted (initialized) on other cameras, computers or peripheral equipment may not operate correctly. In this case, format (initialize) the SDHC card on this camera recorder. 6