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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of JVC DR-MH30SER Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 16 (click to view)

Updating the firmware of the drive unit

• Firmware update disc supports only DVD-RAM media. • When firmware update is necessary, written discs are distributed by DIGITAL VIDEO STORAGE CATEGORY, CS group. (1) Turn the main body ON. (2) Load the update DVD-RAM disc on the tray and close the tray. (3) “READING” is displayed in the FL indicator and the update is started. (4) In a short while “READING” in the FL indicator disappears, open the tray to remove the disc and close the tray. (5) Turn the power OFF and pull out the power code from the wall socket, then plug the power cord into the wall socket again. (6) Set to the JIG mode and check the firmware version of the drive. 5.5 Taking out a disc <Method 1 > There is a forced tray eject mode with electrical operation. (1) Right after plugging in the power code (while “LOADING” is displayed), keep pressing the OPEN/CLOSE button of the main body. (2) Remove the disc as the tray is ejected in a short while. (3) Make sure to close the tray afterwards. <Method 2 > When the disc cannot be removed by operating above <Method 1 >, open the front door of the main body manually and directly press the EJECT button located in the lower right of the drive unit. <Method 3 > When neither <Method 1> nor <Method 2> can remove the disc, the tray can be ejected mechanically without turning the power on. (1) Open the front door of the main body manually. (2) Insert a fine wire (e.g. a straightened paper clip) into the hole in the lower part of the tray of the drive unit. (3) As the tray ejects a little, pull out the tray manually.

Front door


Hole EJECT Button

5.6 Exchanging the fitting As the fitting that comes with the service drive unit cannot be used, make sure to attach a service fitting when the drive unit is exchanged. The fitting that is removed from the old drive unit can be attached to the new drive unit. The fitting can be removed by pulling upwards while opening out the lower part of the fitting outwards.



1-16 (No.YD027)

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