Table Of Contents - JVC GR-DVF11U Service Manual

Section Title
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 Disconnection of Connectors (Wires) ................................. 1-1
1.1.4 Main screws to deal with disassembly/assembly ............... 1-2
1.2 TOOLS AND EQUIPMENTS REQUIRED
FOR ADJUSTMENTS ............................................................... 1-2
1.2.1 Tools required for adjustments ........................................... 1-2
1.2.2 Equipments required for adjustments ................................ 1-3
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS .................. 1-4
1.3.1 Disassembly flow chart ...................................................... 1-4
1.3.2 Disassembly method .......................................................... 1-4
1.4 DISASSEMBLY/ASSEMBLY OF OP BLOCK ........................... 1-9
1.4.1 Precautions ........................................................................ 1-9
1.4.2 Disassembly ....................................................................... 1-9
1.4.3 Assembly ............................................................................ 1-9
1.4.4 Replaceable parts of OP block assembly .......................... 1-9
1.5 DISASSEMBLY/ASSEMBLY OF MONITOR ASSEMBLY ...... 1-10
1.6 DISASSEMBLY/ASSEMBLY OF ELECTRONIC
VIEWFINDER (VF) ................................................................. 1-12
1.6.1 Disassembly/Assembly of B/W VF ................................... 1-12
1.6.2 Disassembly/assembly of COLOR VF ............................. 1-13
1.7 CONNECTION OF CONNECTORS ....................................... 1-14
1.8 HOW TO TAKE OUT CASSETTE TAPE MANUALLY ............ 1-15
1.9 EXTENSION CABLE CONNECTION ..................................... 1-16
1.10 SERVICE NOTE ..................................................................... 1-17
1.11 PRECAUTIONS ON HANDLING THE LITHIUM
SECONDARY BATTERY (J506/MAIN BOARD ASSY) ........... 1-18
1.12 EMERGENCY DISPLAY ......................................................... 1-18
1.13 DEMONSTRATION MODE ..................................................... 1-19
2. MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR .... 2-1
2.1.1 Precautions ........................................................................ 2-1
2.1.2 Necessary jigs .................................................................... 2-1
2.1.3 Notes on disassembling/reassembling procedure ............. 2-1
2.1.4 Screws and washers used in mechanism .......................... 2-1
2.2 DISASSEMBLING/REASSEMBLING MECHANISM ASSEMBLY ... 2-2
2.2.1 General statement .............................................................. 2-2
2.2.2 Explanation of mechanism mode ....................................... 2-2
2.2.3 Mechanism timing chart ..................................................... 2-3
2.2.4 Disassembling/reassembling mechanism assembly .......... 2-4
2.2.5 Disassembling/reassembling ............................................. 2-7
2.2.6 List of procedures for disassembly ................................... 2-13
2.2.7 Checkup and adjustment of mechanism phase ............... 2-14
2.2.8 Reassembling slide deck assembly and
main deck assembly ......................................................... 2-15
2.2.9 Locating tension pole ....................................................... 2-16
2.3 PROCEDURE OF COMPATIBILITY AND P.B. EQ.
(ERROR RATE) ADJUSTMENTS ........................................... 2-17
2.3.1 Precautions ...................................................................... 2-17
2.3.2 Adjustment standard ........................................................ 2-17
2.3.3 Linearity adjustment ......................................................... 2-18
2.3.4 PB switching point adjustment ......................................... 2-18
2.3.5 Head REC current adjustment ......................................... 2-18
2.3.6 P.B. EQ. (error rate) adjustment (for SP and LP) ............. 2-19
2.3.7 Measurement method of P.B. EQ. (error rate) ................. 2-19
2.4 SERVICE NOTE ..................................................................... 2-20
2.5 JIG CONNECTOR CABLE (YTU93082C) CONNECTION ..... 2-22
3. ELECTRICAL ADJUSTMENT
3.1 PREPARATION ......................................................................... 3-1
3.2 E. VF SECTION ADJUSTMENT (B/W VF ONLY) ..................... 3-1
The following table lists the differing points between Models GR-DVF11U, GR-DVF21U and GR-DVF31U in this series.
VIEW FINDER
LCD MONITOR
BUILT IN VIDE AUTO LIGHT
DIGITAL STILL PICTURE
PC TERMINAL
REMOTE CONTROL
RCU BATTERY
PC CABLE
EDITING CABLE
SOFT WEAR

TABLE OF CONTENTS

Page
Section
3.3 SETUP ...................................................................................... 3-1
3.4 ELECTRONIC VIEWFINDER (E. VF) ADJUSTMENT .............. 3-3
3.4.1
3.4.2
3.5 FUSE LOCATION FOR MAIN ................................................... 3-4
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM ........................................ 4-1
CIRCUIT BOARD NOTES ........................................................ 4-2
4.1 BOARD INTERCONNECTIONS ............................................... 4-3
4.2 JACK AND VF IF SCHEMATIC DIAGRAMS ............................ 4-5
4.3 SYSCON SCHEMATIC DIAGRAM ........................................... 4-7
4.4 DECK CPU SCHEMATIC DIAGRAM ........................................ 4-9
4.5 DV DSP SCHEMATIC DIAGRAM ........................................... 4-11
4.6 DV EQ SCHEMATIC DIAGRAM ............................................. 4-13
4.7 AV OUT SCHEMATIC DIAGRAM ........................................... 4-15
4.8 CAMERA DSP SCHEMATIC DIAGRAM ................................. 4-17
4.9 IRIS & AF/ZOOM SCHEMATIC DIAGRAM ............................. 4-19
4.10 TG CDS SCHEMATIC DIAGRAM ........................................... 4-21
4.11 REGULATOR SCHEMATIC DIAGRAM .................................. 4-23
4.12 MDA SCHEMATIC DIAGRAM ................................................ 4-25
4.13 AUDIO AD/DA AND AUDIO FADER SCHEMATIC DIAGRAMS .. 4-27
4.14 MAIN AUDIO SCHEMATIC DIAGRAM ................................... 4-29
4.15 PRE/REC SCHEMATIC DIAGRAM ....................................... 4-31
4.16 JUNCTION AND CCD SCHEMATIC DIAGRAMS .................. 4-33
4.17 VF BL, ZOOM UNIT AND OPE. COVER UNIT
SCHEMATIC DIAGRAMS ....................................................... 4-35
4.18 MONITOR SCHEMATIC DIAGRAM ....................................... 4-37
4.19 B/W VF SCHEMATIC DIAGRAM (FOR DVF11U/21U) ........... 4-39
4.20 MAIN CIRCUIT BOARD .......................................................... 4-41
4.21 SECOND CIRCUIT BOARD ................................................... 4-47
4.22 JUNCTION AND CCD CIRCUIT BOARDS ............................. 4-51
4.23 MONITOR CIRCUIT BOARD .................................................. 4-53
4.24 VF BL AND B/W VF CIRCUIT BOARDS ................................. 4-55
4.25 POWER SYSTEM BLOCK DIAGRAM .................................... 4-57
4.26 VIDEO SYSTEM BLOCK DIAGRAM ...................................... 4-59
4.27 AUDIO SYSTEM BLOCK DIAGRAM ...................................... 4-63
4.28 REGULATOR SYSTEM BLOCK DIAGRAM ........................... 4-65
4.29 VOLTAGE CHARTS ................................................................ 4-67
5. PARTS LIST
5.1 PACKING ASSEMBLY <M1> .................................................... 5-1
5.2 FINAL ASSEMBLY <M2> .......................................................... 5-3
5.3 MECHANISM ASSEMBLY <M3> .............................................. 5-6
5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4>
[GR-DVF11U/DVF21U] ............................................................ 5-8
5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4>
[GR-DVF31U] ........................................................................... 5-9
5.5 MONITOR ASSEMBLY <M5> [GR-DVF11U/DVF21U] ........... 5-10
5.5 MONITOR ASSEMBLY <M5> [GR-DVF31U] .......................... 5-11
5.6 ELECTRICAL PARTS LIST ..................................................... 5-12
MAIN BOARD ASSEMBLY <01> ............................................ 5-12
SECOND BOARD ASSEMBLY <02> ...................................... 5-19
JUNCTION BOARD ASSEMBLY <03> ................................... 5-22
CCD BOARD ASSEMBLY <04> ............................................. 5-22
VF BL BOARD ASSEMBLY <06> ........................................... 5-22
MONITOR BOARD ASSEMBLY <07> .................................... 5-22
ZOOM UNIT <08> ................................................................... 5-23
OPE. COVER UNIT <09> ....................................................... 5-24
B/W VF BOARD ASSEMBLY (DVF11U/DVF21U) <10> ......... 5-24
6. AC POWER ADAPTER (AA-V20U)
6.1 CABINET ASSEMBLY <MA> .................................................... 6-1
6.2 SCHEMATIC DIAGRAM ........................................................... 6-2
6.3 CIRCUIT BOARD ...................................................................... 6-4
6.4 ELECTRICAL PARTS LIST ....................................................... 6-5
GR-DVF11U
B/W
2.5INCH
NOT USED
NOT USED
NOT USED
OPTIONAL
NOT USED
NOT USED
NOT USED
NOT USED
Title
Black level .......................................................................... 3-3
Gain` .................................................................................. 3-3
GR-DVF21U GR-DVF31U
B/W COLOR
2.5INCH 3INCH
USED USED
USED USED
USED USED
PROVIDED PROVIDED
USED USED
USED USED
USED USED
USED USED
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