JVC DVL320U - Manual (Page 2)

Important Safety Precautions
INSTRUCTIONS
1. DISASSEMBLY
1.1 BEFORE ASSEMBLY AND DISASSEMBLY ......................... 1-1
1.1.1 Precautions ..................................................................... 1-1
1.1.2 Assembly and disassembly ............................................ 1-1
1.1.3 Destination of connectors ............................................... 1-1
1.1.4 Disconnection of Connectors (Wires) ............................. 1-1
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,
ASSEMBLY AND ADJUSTMENT ......................................... 1-2
1.2.1 Tools required for adjustments ........................................ 1-2
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND
BOARD ASSEMBLY ............................................................. 1-2
1.3.1 Disassembly flow chart ................................................... 1-2
1.3.2 Disassembly method ...................................................... 1-3
1.4 4 MONITOR ASSEMBLY ..................................................... 1-7
1.4.1 Disassembly/assembly of monitor assembly
(for 2.5”-type LCD) .......................................................... 1-7
1.4.2 Disassembly/assembly of hinge assembly
(for 2.5”-type LCD) .......................................................... 1-7
1.4.3 Disassembly/assembly of monitor assembly
(for 3.5”-type LCD) .......................................................... 1-8
1.4.4 Disassembly/assembly of hinge assembly
(for 3.5”-type LCD) .......................................................... 1-8
1.5 5 E. VF ASSEMBLY .............................................................. 1-9
1.5.1 Disassembly/assembly of E.VF assembly (for the B/W VF) . 1-9
1.6 DISASSEMBLY/ASSEMBLY OF 0 OP BLOCK
ASSEMBLY/CCD BOARD ASSEMBLY ............................... 1-10
1.6.1 Precautions ................................................................... 1-10
1.6.2 How to remove CCD board assembly and
CCD base assembly ..................................................... 1-10
1.6.3 How to assemble CCD base assembly and
CCD board assembly .................................................... 1-10
1.6.4 Replacement of service repair parts ............................. 1-10
1.7 EMERGENCY DISPLAY ..................................................... 1-11
1.8 SERVICE NOTE .................................................................. 1-12
2. MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR .. 2-1
2.1.1 Precautions ..................................................................... 2-1
2.1.2 Notes on procedure for disassemby/assembly ............... 2-1
2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,
ASSEMBLY AND ADJUSTMENT ......................................... 2-2
2.2.1 Tools required for adjustments ........................................ 2-2
2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-3
2.3.1 General statement .......................................................... 2-3
2.3.2 Explanation of mechanism mode ................................... 2-3
2.3.3 Mechanism timing chart .................................................. 2-4
2.4 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-5
2.4.1 Follow chart .................................................................... 2-5
2.4.2 Disassembly/assembly ................................................... 2-8
2.4.3 List of procedures for disassembly ............................... 2-14
2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE .. 2-15
2.6 MECHANISM ADJUSTMENTS .......................................... 2-16
2.6.1 Assembling slide deck assembly and main deck assembly 2-16
2.6.2 Locating tension pole .................................................... 2-17
2.7 SERVICE NOTE .................................................................. 2-18
2.8 JIG CONNECTOR CABLE CONNECTION ........................ 2-20
TABLE OF CONTENTS
Section Title Page Section Title Page
3. ELECTRICAL ADJUSTMENT
3.1 Precaution ............................................................................. 3-1
3.2 SETUP .................................................................................. 3-2
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM .......................................... 4-1
CIRCUIT BOARD NOTES ........................................................... 4-2
4.1 BOARD INTERCONNECTIONS ........................................... 4-3
4.2 MAIN IF SCHEMATIC DIAGRAM ............................................... 4-5
4.3 SYSCON SCHEMATIC DIAGRAM ............................................. 4-7
4.4 PC IF SCHEMATIC DIAGRAM ................................................... 4-8
4.5 DECKCPU SCHEMATIC DIAGRAM ......................................... 4-11
4.6 MDA SCHEMATIC DIAGRAM .................................................. 4-13
4.7 AUDIO SCHEMATIC DIAGRAM ............................................... 4-15
4.8 DVMAIN SCHEMATIC DIAGRAM ............................................ 4-17
4.9 PRE/REC SCHEMATIC DIAGRAM .......................................... 4-10
4.10 V OUT SCHEMATIC DIAGRAM ............................................. 4-21
4.11 CAM.DSP SCHEMATIC DIAGRAM ....................................... 4-23
4.12 OP DRV SCHEMATIC DIAGRAM .......................................... 4-25
4.13 TG SCHEMATIC DIAGRAM ................................................... 4-27
4.14 REG SCHEMATIC DIAGRAM ................................................ 4-29
4.15 MONITOR SCHEMATIC DIAGRAM ....................................... 4-31
4.16 LCD BL SCHEMATIC DIAGRAM ........................................... 4-33
4.17 CCD SCHEMATIC DIAGRAM ................................................ 4-35
4.18 JUNCTION SCHEMATIC DIAGRAM ..................................... 4-36
4.19 JACK SCHEMATIC DIAGRAM .............................................. 4-37
4.20 REAR SCHEMATIC DIAGRAM .............................................. 4-38
4.21 B/W VF SCHEMATIC DIAGRAM ........................................... 4-39
4.22 DSC SCHEMATIC DIAGRAM [DVL520/DVL522/DVL720] .... 4-41
4.23 MAIN CIRCUIT BOARD [DVL220/DVL320/DVL520] ............. 4-43
4.24 MAIN CIRCUIT BOARD [DVL522/DVL720] ........................... 4-49
4.25 MONITOR CIRCUIT BOARD ................................................. 4-55
4.26 LCD BL CIRCUIT BOARD ...................................................... 4-57
4.27 CCD AND JUNCTION CIRCUIT BOARDS ............................ 4-59
4.28 JACK AND VF CIRCUIT BOARDS ........................................ 4-61
4.29 REAR CIRCUIT BOARD ........................................................ 4-63
4.30 DSC CIRCUIT BOARD [DVL520/DVL522/DVL720] ............... 4-65
4.31 VOLTAGE CHARTS ............................................................... 4-67
4.32 POWER SYSTEM BLOCK DIAGRAM ................................... 4-71
4.33 VIDEO SYSTEM BLOCK DIAGRAM ...................................... 4-73
4.34 REGULATOR SYSTEM BLOCK DIAGRAM .......................... 4-77
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ............... 5-1
5.2 FINAL ASSEMBLY <M2> ..................................................... 5-3
5.3 MECHANISM ASSEMBLY <M3> ......................................... 5-6
5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> ................ 5-8
5.5 MONITOR ASSEMBLY <M5> [GR-DVL220U, 320U, 520U, 522U] . 5-9
5.5 MONITOR ASSEMBLY <M5> [GR-DVL720U] ................... 5-10
5.6 ELECTRICAL PARTS LIST ................................................. 5-11
MAIN BOARD ASSEMBLY <01> ............................................. 5-11
MONITOR BOARD ASSEMBLY <02> ..................................... 5-19
LCD BL BOARD ASSEMBLY <03> ......................................... 5-20
CCD BOARD ASSEMBLY <04> .............................................. 5-20
JUNCTION BOARD ASSEMBLY <05> ................................... 5-20
JACK BOARD ASSEMBLY <06> ............................................. 5-20
REAR BOARD ASSEMBLY <07> ............................................ 5-21
B/W VF BOARD ASSEMBLY <08> ......................................... 5-21
DSC BOARD ASSEMBLY <10> (E,F,G) .................................. 5-21
GR-DVL220U GR-DVL320U GR-DVL520U GR-DVL522U GR-DVL720U
LCD MONITOR 2.5” 2.5” 2.5” 2.5” 3.5”
VIDEO LIGHT NOT USED USED USED USED USED
DIGITAL STILL CAMERA NOT USED NOT USED USED USED USED
MEMORY CARD NOT USED NOT USED USED USED USED
EDITING CABLE NOT USED NOT USED NOT USED USED USED
RCU UNIT RM-V715U RM-V715U RM-V715U RM-V717U RM-V717U
The following table lists the differing points between Models GR-DVL220U,GR-DVL320U, GR-DVL520U,GR-DVL522U and
GR-DVL720U in this serise.