Troubleshooting > Special Functions

4-9-2 EEPROM data backup and write

(1) Application

Perform this work whenever you replace the MAN-H/MAN circuit board on which the EEPROM is mounted.

Create a backup file of the data in EEPROM to be replaced in a PC, and write the backup file 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.

(2)Preparations

1)Connect the DVD video camera/recorder, jig/tool and power supply as shown in Fig. 4-9-3. Refer to “6-1-1 List of Jigs and Tools used when Creating Reference Data” and “6-1-2 Power Supply and Materials for Creating Reference Data” for details on jig/tool and power supply in the figure.

2)Copy the adjustment program to HDD of PC.

Refer to “6-1-5 Copying or Deleting Adjustment Program” for copying.

3)Start the adjustment program in order to display the adjustment menu screen on PC display.

Prohibition:

Completely assemble the DVD video camera/recorder; create backup file of EEPROM data and write it with only the adjustment cover removed (see Fig. 4-9-3).

Do not attempt to perform work with the DVD video camera/recorder disassembled: Doing so is very dangerous because the DVD video camera/recorder incorporates high-voltage circuits and a laser emitter block.

Note:

1)Always connect the Skylark connection jig before connecting the DC power cord to the DVD video camera/recorder: Connecting the Skylark connection jig after powering the DVD video camera/recorder could cause a fault.

2)Connect the Skylark connection jig so that the lead wires from jig face up.

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Hitachi service manual Eeprom data backup and write, Application, Preparations
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