HITACHI DZ-HS300A
Manual de Servicio

Disassembly and Reassembly > EEPROM Data Backup and Write

5-4 EEPROM Data Backup and Write
Perform this work whenever you replace the MAN circuit board on which the EEPROM is mounted. Create a backup �le of the data in EEPROM to be replaced in a PC, and write the backup �le to new EEPROM: Some adjustment items that are performed after replacement can be omitted. Refer to �6-3-2 List of Adjustments Needed After Replacing Major Components� for adjustment items that can be omitted. Information: It may be impossible to back up the data in EEPROM to be replaced, depending on the status of fault: In such a case, replace the MAN circuit board, and then perform �6-4-1 Initial Data Write�.

(1) Preparations
1) Open the LCD monitor. Insert a �ne-tipped �at-bladed screwdriver into the groove in adjustment cover, and remove the cover from L case in the direction of the arrow: Be very careful not to scratch the cover or L case with screwdriver 2) Connect the DVD video camera/recorder, jig/tool and power supply as shown in Fig. 5-4-1. Refer to �6-1-2 List of Jigs and Tools used when Creating Reference Data� for details on jig/tool and power supply in the �gure. 3) Copy the adjustment software to HDD of PC. Refer to �6-1-6 Copying or Deleting Adjustment Software� for copying. 4) Start the adjustment software in order to display the adjustment menu screen on PC display. Refer to �6-2-5 Starting and Terminating Adjustment Software� for how to start the software.

Caution
It is very dangerous to perform any work with the DVD video camera/recorder disassembled, since the DVD video camera/recorder has a laser-emitting block and high-voltage circuits: Do not remove any parts other than the adjustment cover.

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