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SERVICE MANUAL
DIGITAL VIDEO CAMERA
GR-DVL220U,DVL320U,DVL520U,
DVL522U,DVL720U
SPECIFICATIONS (The specifications shown pertain specifically to the model GR-DVL320/DVL520/DVL720)
Digital Still Camera Function (GR-DVL720/DVL520 only)
Camcorder
Storage media : SD Memory Card/MultiMediaCard
General
Compression system : JPEG (compatible)
Power supply : DC 11.0 V } (Using AC Adapter)
File size : 2 modes (1024 x 768 pixels, 640 x 480 pixels)
DC 7.2 V } (Using battery pack)
Picture quality : 2 modes
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TABLE OF CONTENTS Section Title Page Section Title Page Important Safety Precautions 3. ELECTRICAL ADJUSTMENT INSTRUCTIONS 3.1 Precaution ............................................................................. 3-1 3.2 SETUP .................................................................................. 3-2 1. DISASSEMBLY 4. CHARTS AND DIAGRAMS 1.1 BEFORE ASSEMBLY AND DISASSEMBLY ......................... 1-1 1.1.1 Precautions .........................................................
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1.25 2.0 5.5 Important Safety Precautions Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. Precautions during Servicing • 1. Locations requiring special caution are denoted by labels and in- 12. Crimp type wire connector
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Safety Check after Servicing • Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1. Insulation resistance test Confirm the specified insulation resistance or greater between power cord plug prongs and exter- nally exposed parts of the set (RF terminals, antenna t
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SECTION 1 DISASSEMBLY 1.1 BEFORE ASSEMBLY AND DISASSEMBLY 1.1.4 Disconnection of Connectors (Wires) 1.1.1 Precautions Connector Pull both ends of the connector in the arrow direction, re- 1. Be sure to remove the power supply unit prior to mount- move the lock and disconnect the flat wire. ing and soldering of parts. 2. When removing a component part that needs to discon- Flat wire nect the connector and to remove the screw for remov- ing itself, first disconnect the connecting wire from the con
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1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, 1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS ASSEMBLY AND ADJUSTMENT AND BOARD ASSEMBLY 1.2.1 Tools required for adjustments 1.3.1 Disassembly flow chart This flowchart indicates the disassembly step for the cabi- Torque Driver Bit 1 2 YTU94088 YTU94088-003 net parts and board assembly in order to gain access to item(s) to be serviced. When reassembling, perform the step(s) in reverse order. UPPER CASE ASSY 1 (Inc. MONITOR ASSY / E.VF ASSY) / Tweezers Ch
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1.3.2 Disassembly method Note: Remove the parts marked in . STEP CONN. Fig.No. PART POINT NOTE CONNECTOR Pin No. No. No. UPPER CASE Fig. 1-3-1 6(S1a), 4(S1b), 3(S1c), CN1 MAIN CN101 ⇔ MONITOR CN761 40 ASSY CN1 CN2a DSC CN8002 ⇔ MONITOR CN762 10 1 (Inc. MONITOR – ASSY / E.VF CN2b DSC CN8001 MAIN CN111 80 / ASSY) ----------------- -------------------------------------- DSC BOARD (S2), CN2a, CN2b – CN4 MONITOR CN764 ⇔ LCD BL CN751 33/32 2 ASSY CN5 MONITOR CN763 ⇔ E.VF ASSY CN721 2
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5 19 (S 5 ) 20 5 (S ) 15 3 (S ) CN 5 16 (S 3 ) 3 Fig. 1-3-2 Fig. 1-3-4 24 23 22 6 6 (S a) (S a) 6 (S a) 21 6 (S 6 a) NOTE 6 25 KNOB (S 6 a) (VIDEO-DSC) KNOB 26 (DC LIGHT) 6 (S b) 6 CN 4 4 CN 27 (S 6 c) 28 (S 6 c) ∗ SPEAKER 17 4 (S ) ∗ 29 18 (S 6 c) (S 4 ) BRACKET (MONITOR) 30 6 (S c) ∗ : 0.147N·m (1.5kgf·cm) Fig. 1-3-5 Fig. 1-3-3 1-4
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33 (S 9 ) 9 7 NOTE COVER (JACK) 31 (L 7 a) 7 (S 7 ) (L 8 c) 7 CN 8 (L 7 b) (L 8 c) 32 7 (S ) 7 DC LIGHT DC LIGHT 6 5 NC 4 3 8 MIC 2 7 CN 1 MIC Fig. 1-3-6 10 CN b 35 10 (S b) 36 (S 11 ) CN 11 a 11 NOTE 10 34 10 (S a) 37 11 (S ) 10 10 CN a 11 CN b 38 11 NOTE 10 NOTE (S 11 ) COVER TO MAIN (DC) TO CCD Fig. 1-3-7 Fig. 1-3-8 1-5
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12 14 48 42 (S 14 b) (S 12 b) CN 14 c 12 CN CN 14 b 43 47 41 39 12 (S b) 12 12 (S b) (S 14 b) (S a) 14 CN a 40 SHIELD (S 12 a) PLATE 46 14 (L ) (S 14 a) Fig. 1-3-9 Fig. 1-3-11 16 13 CN a CN 13 c BRACKET (MECHA) 13 44 CN 13 b 13 (S a) CN 13 d 51 NOTE 13 a (S 16 a) 45 EJECT SW 13 52 (S b) 49 13 NOTE b 16 (S a) 15 (S ) 53 16 (S b) CN 15 15 50 15 (S ) Fig. 1-3-10 Fig. 1-3-12 1-6
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1.4 MONITOR ASSEMBLY 4 3. Unplug the wires and FPCs from the two connectors b , c , and then remove the MONITOR BL board assembly, Note: The shape of the monitor assembly varies by the size holder (PWB) and backlight in that order. of the LCD screen. 4. Remove the LCD module. For the 2.5”-type LCD, refer to Fig. 1-4-1. 1.4.1 Disassembly/assembly of monitor assembly 1.4.2 Disassembly/assembly of hinge assembly (for 2.5”-type LCD) (for 2.5”-type LCD) Note: Be careful not to soil or scratch the mo
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Note: The shape of the monitor assembly varies by the size 3. Unplug the wires and FPCs from the two connectors b , of the LCD screen. c , and then remove the MONITOR BL board assembly, holder (PWB) and backlight in that order. For the 3.5”-type LCD, refer to Fig. 1-4-2. 4. Remove the LCD module while disengaging it from the four hooks (L4g, L4h, L4j, L4k,). 1.4.3 Disassembly/assembly of monitor assembly (for 3.5”-type LCD) 1.4.4 Disassembly/assembly of hinge assembly Note: Be careful not to so
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1.5 E. VF ASSEMBLY 5 1.5.1 Disassembly/assembly of E.VF assembly (for the B/W VF) 5. Remove the screw (8) and the remove the CAP (VF). 1. Remove the EYE CUP. 6. Remove the FPC from the CASE A (VF) so that the CASE 2. Remove the three screws (1 to 3) and then remove the A (VF) may be unlocked. CASE B (VF). 7. Remove the HOLDER LCD (VF) while unlocking it by the 3. Remove the screw (4) to remove the LEVER (VF) and pull both side. out the LENS ASSY. Note a: Be careful not to lose the SPRING (VF). 5
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1.6 DISASSEMBLY/ASSEMBLY OF 0 OP BLOCK 1.6.3 How to assemble CCD base assembly and CCD ASSEMBLY/CCD BOARD ASSEMBLY board assembly 1.6.1 Precautions 1. Install the optical LPF with the spacer rubber attached to its CCD side in the OP block assembly. 1. Take care in handling the CCD image sensor, optical LPF and lens components when performing maintenance Note0c: Pay careful attention to the orientation of the LPF. etc., especially with regard to surface contamination, at- 2. Set the CCD base asse
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1.7 EMERGENCY DISPLAY Whenever some abnormal signal is input to the syscon CPU, Example (in case of the error number E01): an error number (E01, as an example) is displayed on the LCD monitor or (in the electronic view finder). In every error status, such the message as shown below E01 E01 alternately appear over and over. UNIT IN REMOVE AND SAFEGUARD MODE REATTACH BATTERY • In an emergency mode, all operations except turning on/ off the POWER switch are ineff
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1.8 SERVICE NOTE 1-12 → Symbol No. 1325 4 → Removing order of screw 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 → Place to stick screw ∗∗ ∗∗ Reference drawing→ Fig. 1-3-1 Fig. 1-3-2 Fig. 1-3-3 Fig. 1-3-4 → Screw tightening torque → 6 7 /8 /90! @ Symbol No. → 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Removing order of screw → Place to stick screw ∗∗ ∗ ∗ ∗ ∗
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SECTION 2 MECHANISM ADJUSTMENT 2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND (3) The symbol (T or B)appearing in this column shows the REPAIR side which the objective part is mounted on. T =the upper side, B =the lower side 2.1.1 Precautions (4) Symbols appearing in this column indicate drawing 1. When fastening parts, pay careful attention to the tight- numbers. ening torque of each screw. Unless otherwise specified, • • Step Part Name Fig. Point Note Remarks tighten a screw with the to
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2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT 2.2.1 Tools required for adjustments Torque Driver Bit 1. Torque Driver 1 2 YTU94088 YTU94088-003 Be sure to use to fastening the mechanism and exterior parts because those parts must strictly be controlled for tightening torque. 2. Bit This bit is slightly longer than those set in conventional torque drivers. Tweezers Chip IC Replacement Jig 3. Tweezers 3 4 P-895 PTS40844-2 To be used for removing and installing parts and wire
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2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2.3.1 General statement The mechanism should generally be disassembled/assem- bled in the EJECT mode (ASSEMBLY mode). (Refer to Fig. 2-3-1.) TOP VIEW BOTTOM VIEW However, when the mechanism is removed from the main body, it is set in the STOP mode. Therefore, after the Fig. 2-3-2 mechanism is removed from the main body, supply 3 V DC to the electrode on the top of the loading motor to enter the mechanism mode into the
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2.3.3 Mechanism timing chart MODE EJECT C IN SHORT FF STOP REV PLAY PARTS MAIN CAM (ø10.4) 0 31.7 45.6 49.5 74.04 129.5 156.6 169.2 211.5 280.3 SUB CAM (ø11) 0 43.1 46.8 122.5 148.1 30 70 160 200 265 ENCODER (ø10) 0 33 47.4 51.5 77 134.7 162.9 176 220 291.5 1 ROTARY 2 ENCODER 3 C CAM SW B A SLIDE END SLIDE START SLIDE POLE BASE EJECT LEVER SUP LOADING BRAKE RELEASE GUIDE SUB BRAKE (T) PINCH ROLLER TENSION PAD ARM MAIN CAM (ø10.4) 47.2 52.0 155.5 265.0 SUB CAM (ø11)
