TABLE OF CONTENTS
SectionTitlePageSectionTitlePage
Important Safety Precautions4.3 SYSCON SCHEMATIC DIAGRAM [GR-DVM55U] .......................... 4-7
INSTRUCTIONS4.4 SYSCON SCHEMATIC DIAGRAM [GR-DVM75U] .......................... 4-9
4.5 PC IF SCHEMATIC DIAGRAM [GR-DVM55U] ............................. 4-11
1. DISASSEMBLY4.6 PC IF SCHEMATIC DIAGRAM [GR-DVM75U] ............................. 4-13
4.7 DVMAIN SCHEMATIC DIAGRAM [GR-DVM55U] ......................... 4-15
1.1 BEFORE ASSEMBLY AND DISASSEMBLY ................................ 1-14.8 DVMAIN SCHEMATIC DIAGRAM [GR-DVM75U] ......................... 4-17
1.1.1 Precautions ........................................................................... 1-1
1.1.2 Assembly and disassembly .................................................. 1-14.9 SERVO SCHEMATIC DIAGRAM ...................................................... 4-19
1.1.3 Destination of connectors ..................................................... 1-14.10 PRE/REC SCHEMATIC DIAGRAM ............................................... 4-21
4.11 V OUT SCHEMATIC DIAGRAM [GR-DVM55U] ........................ 4-23
1.1.4 Disconnection of Connectors (Wires) ................................... 1-1
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,4.12 V OUT SCHEMATIC DIAGRAM [GR-DVM75U] ........................ 4-25
ASSEMBLY AND ADJUSTMENT................................................. 1-24.13 CAM DSP SCHEMATIC DIAGRAM [GR-DVM55U] ................... 4-27
4.14 CAM DSP SCHEMATIC DIAGRAM [GR-DVM75U] ................... 4-29
1.2.1 Tools required for adjustments .............................................. 1-24.15 ANA IN SCHEMATIC DIAGRAM [GR-DVM75U]........................... 4-31
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND BOARD
ASSEMBLY .................................................................................. 1-24.16 TG/V.DRV SCHEMATIC DIAGRAM .............................................. 4-33
4.17 REG SCHEMATIC DIAGRAM ....................................................... 4-35
1.3.1 Disassembly flow chart ......................................................... 1-24.18 STO SENS SCHEMATIC DIAGRAM [GR-DVM75U] .................... 4-37
1.3.2 Disassembly method ............................................................ 1-3
1.4 DISASSEMBLY OF 5 MONITOR ASSEMBLY............................. 1-84.19 VF MAIN SCHEMATIC DIAGRAM ................................................ 4-39
1.4.1 5 Monitor assembly/Hinge assembly ................................... 1-84.20 DSC SCHEMATIC DIAGRAM [GR-DVM75U] ............................... 4-41
4.21 USB DRV SCHEMATIC DIAGRAM [GR-DVM75U]....................... 4-43
1.4.2 Hinge assembly .................................................................... 1-84.22 MP3 SCHEMATIC DIAGRAM [GR-DVM75U] ............................... 4-45
1.5 DISASSEMBLY OF 7 OP BLOCK ASSEMBLY/CCD BOARD
ASSEMBLY .................................................................................. 1-94.23 W/B SCHEMATIC DIAGRAM ........................................................ 4-47
4.24 CCD SCHEMATIC DIAGRAM ....................................................... 4-48
1.5.1 Precautions ........................................................................... 1-94.25 MDA SCHEMATIC DIAGRAM ....................................................... 4-49
1.5.2 How to remove OP block assembly and CCD board assembly 1-9
1.5.3 How to install OP block assembly and CCD board assembly 1-94.26 IR TALLY SCHEMATIC DIAGRAM ............................................... 4-51
1.5.4 Replacement of service parts ............................................... 1-94.27 OP DRIVER SCHEMATIC DIAGRAM ........................................... 4-53
4.28 MONITOR SCHEMATIC DIAGRAM .............................................. 4-55
1.6 DISASSEMBLY OF 9 E VF ASSEMBLY.................................... 1-104.29 JUNCTION SCHEMATIC DIAGRAM............................................. 4-57
1.6.1 9 E VF assembly ................................................................ 1-10
1.7 EMERGENCY DISPLAY ............................................................ 1-114.30 STROBE SCHEMATIC DIAGRAM [GR-DVM75U] ........................ 4-59
4.31 AUDIO AD/DA SCHEMATIC DIAGRAM ....................................... 4-61
1.8 SERVICE NOTE ......................................................................... 1-124.32 MAIN AUDIO SCHEMATIC DIAGRAM ......................................... 4-63
2. MECHANISM ADJUSTMENT4.33 A/HP SEL. SCHEMATIC DIAGRAM.............................................. 4-65
4.34 JACK SCHEMATIC DIAGRAM...................................................... 4-67
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR .... 2-14.35 WB SENS, CAMERA OPE. UNIT, DECK OPE. ASSY AND
2.1.1 Precautions ........................................................................... 2-1
2.1.2 Notes on procedure for disassemby/assembly ..................... 2-1SUB OPE. UNIT SCHEMATIC DIAGRAMS .................................. 4-69
4.36 MAIN CIRCUIT BOARD [GR-DVM55U] ........................................ 4-71
2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY4.37 MAIN CIRCUIT BOARD [GR-DVM75U] ........................................ 4-77
AND ADJUSTMENT .................................................................... 2-24.38 MDA CIRCUIT BOARD.................................................................. 4-83
2.2.1 Tools required for adjustments .............................................. 2-2
2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY........ 2-34.39 CCD AND JUNCTION CIRCUIT BOARDS ................................... 4-85
4.40 MONITOR CIRCUIT BOARD......................................................... 4-87
2.3.1 General statement ................................................................ 2-34.41 AUDIO CIRCUIT BOARD .............................................................. 4-89
2.3.2 Explanation of mechanism mode.......................................... 2-3
2.3.3 Mechanism timing chart........................................................ 2-44.42 STROBE, W/B AND JACK CIRCUIT BOARDS ............................ 4-91
4.43 VOLTAGE CHARTS ...................................................................... 4-93
2.4 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY........ 2-54.44 POWER SYSTEM BLOCK DIAGRAM .......................................... 4-97
2.4.1 Follow chart .......................................................................... 2-54.45 VIDEO SYSTEM BLOCK DIAGRAM ............................................. 4-99
2.4.2 Disassembly/assembly ......................................................... 2-8
2.4.3 List of procedures for disassembly ..................................... 2-14
5. PARTS LIST
2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE...... 2-15
2.6 MECHANISM ADJUSTMENTS.................................................. 2-165.1 PACKING AND ACCESSORY ASSEMBLY <M1>....................... 5-1
2.6.1 Assembling slide deck assembly and main deck assembly 2-165.2 FINAL ASSEMBLY <M2> ............................................................ 5-3
5.3 MECHANISM ASSEMBLY <M3> ................................................ 5-6
2.6.2 Locating tension pole .......................................................... 2-175.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4>........................ 5-8
2.7 SERVICE NOTE ......................................................................... 2-18
2.8 JIG CONNECTOR CABLE CONNECTION................................ 2-205.5 MONITOR ASSEMBLY <M5> ..................................................... 5-9
5.6 ELECTRICAL PARTS LIST ........................................................ 5-10
MAIN BOARD ASSEMBLY <01> ................................................... 5-10
3. ELECTRICAL ADJUSTMENT
3.1 PRECAUTION .............................................................................. 3-1MDA BOARD ASSEMBLY <02>..................................................... 5-19
CCD BOARD ASSEMBLY <03>..................................................... 5-21
3.2 SETUP ......................................................................................... 3-2MONITOR BOARD ASSEMBLY <04>............................................ 5-21
JUNCTION BOARD ASSEMBLY <06> .......................................... 5-22
4. CHARTS AND DIAGRAMS
STROBE BOARD ASSEMBLY (DVM75U) <07> ............................ 5-22
NOTES OF SCHEMATIC DIAGRAM ................................................. 4-1AUDIO BOARD ASSEMBLY <08> ................................................. 5-23
CIRCUIT BOARD NOTES .................................................................. 4-2JACK BOARD ASSEMBLY <09> ................................................... 5-25
4.1 BOARD INTERCONNECTIONS [GR-DVM55U].......................... 4-3W/B BOARD ASSEMBLY <11>...................................................... 5-25
4.2 BOARD INTERCONNECTIONS [GR-DVM75U].......................... 4-5
The following table lists the differing points between Models GR-DVM55U and GR-DVM75U in this series.
GR-DVM55UGR-DVM75U
VIDEO FLASHNOT USEDUSED
DSC FLASH MEMORYNOT USEDUSED
ANLOG INPUTNOT USEDUSED
AV INPUT/S INPUTNOT USEDUSED
HEAD PHONE OUTPUTNOT USEDUSED
DIGITAL STILL OUTPUTNOT USEDUSED
MEMORY CARDNOT USEDUSED (8MB)
JACK BOXCU-V505CU-V506
USB TERMINALNOT USEDUSED
JLIP/EDIT TERMINALNOT USEDUSED
EDIT CONTROL OUTPUTNOT USEDUSED |