Table Of Contents - Hitachi DZ-GX20A Service Manual

1 Safety Precaution for Repair ............. 1-1
1-1 Cautions ................................................... 1-1
1-2 Electrostatic Protection Measures ............ 1-2
1-3 Cautions When Handling DVD Drive ......... 1-2
1-4 Lead-Free Solder ...................................... 1-3
1-5 Notes When Using Service Manual .......... 1-5
2 General Description ........................... 2-1
2-1 Overview .................................................. 2-1
2-1-1 Servicing method ................................... 2-1
2-2 Features ................................................... 2-2
2-3 Specifications ........................................... 2-2
2-4 Major Differences from
Previous Models ....................................... 2-5
2-5 Compatibility of Recorded Discs ............... 2-8
2-6 Names of Parts ......................................... 2-9
2-7 List of Abbreviations and Terms for
DVD Video Camera/Recorders ................. 2-11
3 Description of Operation ................... 3-1
3-1 Description of Structure ............................ 3-1
3-2 Description of Newly Adopted
Technology ............................................... 3-3
4 Troubleshooting.................................. 4-1
4-1 Procedure for Troubleshooting .................. 4-1
4-2 Problem Guide .......................................... 4-2
4-3 Messages and Troubleshooting ................ 4-8
4-4 Display of Error Codes and
Troubleshooting ........................................ 4-18
4-4-1 Displaying error codes and
clearing them ......................................... 4-18
4-4-2 Details of error codes display ................ 4-19
4-4-3 Major error codes and
troubleshooting ...................................... 4-19
4-4-4 Cleaning disc and optical pickup ............ 4-22
4-5 Checking Versions of Firmware and
Updating ................................................... 4-23
4-5-1 Checking firmware versions .................. 4-24
4-5-2 Updating firmware ................................. 4-25
4-6 Trouble Diagnosis ..................................... 4-27
4-6-1 Trouble diagnosis flowchart ................... 4-27
4-6-2 Reassembly to enable
service position ..................................... 4-39

Table of Contents

4-7 Procedure for Removing Disc from
Faulty DVD Video Camera/Recorder ........ 4-43
4-7-1 Item to be checked ................................ 4-43
4-7-2 How to remove disc ............................... 4-43
4-8 System Resetting/Resetting
Camera Functions .................................... 4-44
4-8-1 List of items to be reset ......................... 4-44
4-8-2 System reset procedure ........................ 4-46
4-8-3 Procedure for resetting
4-9 Special Functions ..................................... 4-48
4-9-1 Forced initialization of DVD-RAM ........... 4-48
4-9-2 EEPROM data backup and write ........... 4-49
5 Disassembly and Reassembly .......... 5-1
5-1 Items to Be Checked ................................ 5-1
5-2 Order of Disassembly ............................... 5-1
5-3 Disassembly ............................................. 5-3
(1) Lens Hood
(2) Top Cover
(3) Cushion F and Cushion R [DZ-GX20A/
(4) Lens Cover [DZ-GX20A/MV730A] ......... 5-4
(5) L Block [DZ-GX20A/MV730A] ................ 5-5
(6) L Block [DZ-MV780A] ............................ 5-6
(7) Front Block [DZ-GX20A/MV730A] ......... 5-7
(8) Lens Cover and Front Case
(9) AEL Circuit Board
(10) MAN Circuit Board and Rear Block
(11) Rear Case and EVF Unit
(12) Hand Strap
(13) L Cover
(14) Accessory Shoe and SHE-H Circuit
(15) Camera Block [DZ-GX20A/MV730A] ..... 5-13
(16) Camera Block [DZ-MV780A] ................. 5-13
(17) Flash Unit [DZ-GX20A] .......................... 5-14
i
camera functions ................................... 4-47
[DZ-GX20A/MV780A/MV730A] .............. 5-3
[DZ-GX20A/MV780A/MV730A] .............. 5-3
MV780A/MV730A] ................................. 5-4
[DZ-MV780A] ......................................... 5-8
[DZ-GX20A/MV780A/MV730A] .............. 5-9
[DZ-GX20A/MV780A/MV730A] .............. 5-10
[DZ-GX20A/MV780A/MV730A] .............. 5-11
[DZ-GX20A/MV780A/MV730A] .............. 5-11
[DZ-GX20A/MV780A/MV730A] .............. 5-11
Board [DZ-GX20A/MV730A] .................. 5-12