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SERVICE MANUAL

No. 86658

December 2001

SPECIFICATIONS 

(The specifications shown pertain specifically to the model GR-DVL320/DVL520/DVL720)

DIGITAL  VIDEO  CAMERA

Printed in Japan

This service manual is printed on 100% recycled paper.

COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.

GR-DVL220U,DVL320U,DVL520U,DVL522U,DVL720U

No. 86658

JVC SERVICE & ENGINEERING COMPANY OF AMERICA

DIVISION OF JVC AMERICAS CORP.

Head office
East Coast
Midwest
West Coast
Atlanta
Hawaii

:
:
:
:
:
:

1700 Valley Road Wayne, New Jersey 07470-9976
10 New Maple Avenue Pine Brook, New Jersey 07058-9641
705 Enterprise Street Aurora, Illinois 60504-8149
5665 Corporate Avenue Cypress, California 90630-0024
1500 Lakes Parkway Lawrenceville, Georgia 30043-5857
2969 Mapunapuna Place Honolulu, Hawaii 96819-2040

(973)317-5000
(973)396-1000
(630)851-7855
(714)229-8011
(770)339-2582
(808)833-5828

JVC CANADA INC.

Head office
Montreal
Vancouver

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:
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21 Finchdene Square Scarborough, Ontario M1X 1A7
16800 Rte Trans-Canadienne, Kirkland, Quebec H9H 5G7
13040 Worster Court Richmond, B.C. V6V 2B3

(416)293-1311
(514)871-1311
(604)270-1311

S40895-04

GR-DVL220U,DVL320U,DVL520U,

DVL522U,DVL720U

General

Power supply

: DC 11.0 V 

}

 (Using AC Adapter)

DC 7.2 V 

}

 (Using battery pack)

Power consumption

LCD monitor off, viewfinder on

 : Approx. 4.3 W

LCD monitor on, viewfinder off

 : Approx. 5.3 W

Video light

: Approx. 3.5 W

Dimensions (W x H x D)

: 79 mm x 89 mm x 167 mm (3-1/8" x 3-9/16" x 6-5/8")

(with the LCD monitor closed and the viewfinder
pushed down)

Weight

: Approx. 570 g (1.3 lbs) (GR-DVL720)

Approx. 560 g (1.3 lbs) (GR-DVL520)
Approx. 550 g (1.3 lbs) (GR-DVL320)

Operating temperature

: 0°C to 40°C (32°F to 104°F)

Operating humidity

: 35% to 80%

Storage temperature

: –20°C to 50°C (–4°F to 122°F)

Pickup

: 1/4" CCD

Lens

: F 1.8, f = 3.8 mm to 38 mm, 10:1 power zoom lens

Filter diameter

: ø37 mm

LCD monitor

: 3.5" diagonally measured, LCD panel/TFT active

matrix system (GR-DVL720)
2.5" diagonally measured, LCD panel/TFT active
matrix system (GR-DVL520/DVL320)

Viewfinder

: Electronic viewfinder with 0.24" black/white LCD

Speaker

: Monaural

Digital Video Camera

Format

: DV format (SD mode)

Signal format

: NTSC standard

Recording/Playback format

: Video: Digital component recording
: Audio: PCM digital recording, 32 kHz 4-channel (12-bit),

48 kHz 2-channel (16-bit)

Cassette

: Mini DV cassette

Tape speed

: SP: 18.8 mm/s

LP: 12.5 mm/s

Maximum recording time

: SP: 80 min.

(using 80 min. cassette)

LP: 120 min.

Digital Still Camera Function (GR-DVL720/DVL520 only)

Storage media

: SD Memory Card/MultiMediaCard

Compression system

: JPEG (compatible)

File size

: 2 modes (1024 x 768 pixels, 640 x 480 pixels)

Picture quality

: 2 modes (FINE/STANDARD)

Approximate number of storable images

with memory card [8 MB] (provided)
FINE

: 20 (1024 x 768 pixels), 45 (640 x 480 pixels)

STANDARD

: 65 (1024 x 768 pixels), 160 (640 x 480 pixels)

For other memory cards, 

«

g. 27.

Connectors

S-Video

Output

: Y:1 V (p-p), 75  , analog

C:0.29 V (p-p), 75  , analog

AV

Video output

: 1 V (p-p), 75  , analog

Audio output

: 300 mV (rms), 1 k, analog, stereo

DV

Output

: 4-pin, IEEE 1394 compliant

Input

: 4-pin, IEEE 1394 compliant

USB (GR-DVL720/DVL520 only)

: 5-pin

PC (GR-DVL320 only)

:

ø2.5 mm, 3-pole

EDIT (GR-DVL720/DVL520 only)

: ø3.5 mm, 2-pole

JLIP (GR-DVL320 only)

: ø3.5 mm, 4-pole

Power requirement

U.S.A. and Canada

: AC 120 V 

`

, 60 Hz

Other countries

: AC 110 V to 240 V 

`

, 50 Hz/60 Hz

Output

: DC 11 V 

}

 , 1 A

Specifications shown are for SP mode unless otherwise indicated. E & O.E.
Design and specifications subject to change without notice.

Camcorder

AC Adapter

Summary of Contents for DVL320U

Page 1: ...ity 35 to 80 Storage temperature 20 C to 50 C 4 F to 122 F Pickup 1 4 CCD Lens F 1 8 f 3 8 mm to 38 mm 10 1 power zoom lens Filter diameter ø37 mm LCD monitor 3 5 diagonally measured LCD panel TFT active matrix system GR DVL720 2 5 diagonally measured LCD panel TFT active matrix system GR DVL520 DVL320 Viewfinder Electronic viewfinder with 0 24 black white LCD Speaker Monaural Digital Video Camera...

Page 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 DIA...

Page 3: ...e specified for compli ance with recognized codes pertaining to X ray emission Consequently when servicing these products replace the cath ode ray tubes and other parts with only the specified parts Under no circumstances attempt to modify these circuits Unauthorized modification can increase the high voltage value and cause X ray emission from the cathode ray tube 12 Crimp type wire connector In ...

Page 4: ... between terminals and surrounding metallic parts See table 1 below 4 Leakage current test Confirm specified or lower leakage current between earth ground power cord plug prongs and externally exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc Measuring Method Power ON Insert load Z between earth ground power cord ...

Page 5: ...sassembly diagram 2 Indicates the name of disassembly assembly parts 3 Indicates the number in the disassembly diagram 4 Indicates parts and points such as screws washers springs which must be removed during disassembly assembly Symbol Name Point S Screw L Lock Pawl Hook SD Soldering Example 2 S1 Remove the two screws S1 for removing the part 1 CN1 Disconnect the connector1 SD1 Unsolder at the poi...

Page 6: ...s bit is slightly longer than those set in conventional torque drivers 3 Tweezers To be used for removing and installing parts and wires 4 Chip IC replacement jig To be used for adjustment of the camera system 5 Cleaning cloth Recommended cleaning cloth to wipe down the video heads mechanism tape transport system optical lens surface 1 3 DISASSEMBLY ASSEMBLY OF CABINET PARTS AND BOARD ASSEMBLY 1 3...

Page 7: ...Inc MONITOR ASSY E VF ASSY DSC BOARD ASSY COVER HINGE MONITOR ASSY E VF ASSY MONITOR BOARD ASSY FRONT ASSY Inc DC LIGHT MIC DC LIGHT LIGHT COVER MIC OP BLOCK ASSY REAR UNIT ASSY LOWER CASE ASSY JUNCTION BOARD ASSY MAIN BOARD ASSY JACK BOARD ASSY MECHANISM ASSY STEP No PART Fig No POINT NOTE Fig 1 3 1 Fig 1 3 2 Fig 1 3 3 Fig 1 3 4 Fig 1 3 5 Fig 1 3 6 Fig 1 3 7 Fig 1 3 8 Fig 1 3 9 Fig 1 3 10 Fig 1 3...

Page 8: ...1 3 5 3 S 15 3 S 16 3 4 S 17 4 S 18 4 CN 4 0 147N m 1 5kgf cm 5 S 20 5 S 19 5 CN 5 6 S b 26 6 CN 6 S c 30 6 S c 27 6 S c 28 6 S c 29 6 S a 21 6 S a 24 6 S a 23 6 S a 22 6 S a 25 6 NOTE KNOB VIDEO DSC SPEAKER BRACKET MONITOR 6 KNOB DC LIGHT ...

Page 9: ... 32 7 S 33 9 S 31 7 L c 8 L a 7 NOTE COVER JACK 7 CN 7 CN 7 DC LIGHT MIC L c 8 L b 7 7 6 5 4 3 2 1 DC LIGHT NC MIC 10 S b 35 10 S a 34 10 CN b 10 NOTE 10 NOTE TO MAIN TO CCD 10 CN a 10 11 S 36 11 S 38 11 CN COVER DC b 11 NOTE 11 CN a 11 S 37 11 ...

Page 10: ...a 39 12 S a 40 12 S b 43 12 14 SHIELD PLATE S b 48 14 S b 47 14 L 14 S a 46 14 CN b 14 CN c 14 CN a 14 16 15 BRACKET MECHA S 50 15 S 49 15 S a 52 16 S a 51 16 S b 53 16 CN 15 Fig 1 3 10 13 S b 45 13 S a 44 13 CN d 13 NOTE EJECT SW a 13 NOTE b 13 CN c 13 CN b 13 CN a 13 ...

Page 11: ...e MONITOR BL board assembly holder PWB and backlight in that order 4 Remove the LCD module 1 4 2 Disassembly assembly of hinge assembly for 2 5 type LCD 1 Remove the three screws 5 to 7 and then remove the hinge covers 1 and 2 by disengaging a total of four hooks L4g L4h at the two sides 2 Separate the SW board assembly and the FPC from the hinge assembly Note4c When connecting the FPC arrange the...

Page 12: ...5 to 7 and then remove the hinge covers 1 and 2 by disengaging a total of four hooks L4m L4n at the two sides 2 Separate the SW board assembly and the FPC from the hinge assembly Note4h When disassembling assembling the hinge assem bly pay careful attention to every part not to dam age anything Note4j When connecting the FPC arrange the FPC wire by winding it around the shaft hinge pin of the hing...

Page 13: ...7 and then remove the VF HINGE ASSY Note5b Be careful not to damage the FPC and not to break any wires during the operation 0 078 N m 0 8 kgf cm S a 1 EYE CUP CASE A VF 5 S b 4 5 L b 5 5 L c 5 L a 5 S c 5 5 S a 2 5 S d 8 5 S a 3 5 S c 6 5 S c 7 5 CASE B VF VF HINGE ASSY HOLDER LCD VF LENS ASSY FPC LEVER VF Note a 5 Note b SPRING VF CAP VF 5 Remove the screw 8 and the remove the CAP VF 6 Remove the...

Page 14: ...Note 0b When replacing the CCD image sensor don t re place it individually but replace the CCD base as sembly in whole with a new one 1 6 3 How to assemble CCD base assembly and CCD board assembly 1 Install the optical LPF with the spacer rubber attached to its CCD side in the OP block assembly Note0c Pay careful attention to the orientation of the LPF 2 Set the CCD base assembly with careful atte...

Page 15: ...s locked during mode shift 2 The mechanism is locked at the mechanism loading end because the encoder position is skipped during mechanism mode shift E03 TU SUP REEL FG In the case no REEL FG is produced for 4 sec onds or more in the capstan rotation mode af ter loading was complete the mechanism mode is shifted to STOP with the pinch roller set off This error is defined as E03 However no REEL EMG...

Page 16: ...ening torque Symbol No Removing order of screw Place to stick screw Reference drawing Screw tightening torque Removing order of screw Place to stick screw Reference drawing Screw tightening torque 44 45 46 47 48 49 50 51 52 53 MONITOR ASSY Fig 1 4 1 2 Removing order of screw Place to stick screw Reference drawing Screw tightening torque 1 2 3 4 5 6 7 B W VF ASSY Fig 1 5 1 1 2 3 4 5 6 7 8 NOTE 1 Do...

Page 17: ...olumn shows the side which the objective part is mounted on T the upper side B the lower side 4 Symbols appearing in this column indicate drawing numbers Step Part Name Fig Point Note Remarks 5 This column indicates parts and points such as screws washers springs and others to be removed fitted for disassembling reassembling the mechanism Besides such the parts this column occasionally indicates w...

Page 18: ...rical adjustment etc 9 Communication cable Connect the Communication cable between the PC ca ble and Jig connector cable when performing a PC ad justment 10 PC cable To be used to connect the VideoMovie and a personal computer with each other when a personal computer is used for adjustment 11 Service Support System To be used for adjustment with a personal computer 12 Alignment Tape To be used for...

Page 19: ...Fig 2 3 3 Fig 2 3 4 Fig 2 3 5 Fig 2 3 6 Fig 2 3 7 Motor DC3V EJECT mode Back side of deck C IN mode EJECT mode STOP mode SHORT FF mode PLAY mode REV mode SUB CAM GEAR TOP VIEW BOTTOM VIEW Fig 2 3 8 2 3 2 Explanation of mechanism mode The mechanism mode of this model is classified into six modes as shown in Table 2 3 1 Each mechanism mode can be distinguished from others by the relative position of...

Page 20: ...E SUP LOADING SUB BRAKE T PINCH ROLLER BRAKE PAD ARM TENSION 0 0 0 EJECT C IN 30 31 7 33 70 74 04 77 SHORT FF STOP 169 2 160 176 REV 211 5 200 220 PLAY 280 3 265 291 5 43 1 45 6 47 4 46 8 49 5 51 5 122 5 129 5 134 7 156 6 148 1 162 9 44 6 47 2 49 1 49 2 52 0 54 1 161 7 155 5 147 0 250 5 265 0 275 6 SLIDE START SLIDE END ROTARY ENCODER 3 2 1 2 3 3 Mechanism timing chart ...

Page 21: ...art 1 Configuration 2 Procedures for disassembly A Mechanism assembly Main deck assembly Slide deck assembly Mechanism assembly Main deck assembly Slide deck assembly Cassette housing assembly Cassette housing assembly B C A B C 2a 5b 7a 8a 11e 7h Fig 2 4 1 Fig 2 4 2 ...

Page 22: ...7a 7c Pad arm assembly T Fig 2 4 11 W7 L7b P7b 7d 7d Slide guide plate assembly T Fig 2 4 11 S7b 7c Adjustment 7e Collar T Fig 2 4 11 7a 7f Collar T Fig 2 4 11 7a 7g Sub brake assembly T Fig 2 4 11 W7 L7c P7c 7b 7h Control plate assembly T Fig 2 4 11 2 W7 L7d P7d 7b C Main deck assembly 8a Tension lever assembly T Fig 2 4 12 8c 8b Slide lever assembly T Fig 2 4 12 8b 8c Brake control lever assembl...

Page 23: ... 3a 7c 2a 7b 7a 7d 7e 9c 3c 3b 7h 2b 9f 8a 10c 9e 5b 9d 5a 4c 4a 4b 11b 11a CMain deck assembly BSlide deck assembly 10e 3d 9a 2c 3e 9b 8c 7f 7g TOP VIEW BOTTOM VIEW 11e 11d 11c 8b 10b CMain deck assembly BSlide deck assembly 10a ...

Page 24: ...deformation in the frame or no damage to the switches etc Note 1d After reassembling the com ponent parts check the mechanism operation in the PLAY mode For details of checking method refer to 2 6 1 as sembling slide deck assem bly and main deck assem bly STOP mode EJECT mode PLAY mode Note 2a When removing the reel disk assembly be careful not to break the brake pad which applies lateral pressure...

Page 25: ...embly to the mechanism as the pad arm assembly is moved to the extent in the di rection of the arrow Note 4a When removing the cleaner arm assembly it is recom mended to remove the slant pole arm assembly together with it except the case of a single unit replacement because the hook L4a is hard to disengage Note 4b How to set the coil spring P4b 3 3a Tension arm assembly 3b Release guide assembly ...

Page 26: ...er deforma tion nor damage observed in them Note 5d When removing the rail assembly check to see if the collar is securely set in the arm groove Note 6a When removing the slide deck assembly pay heed to the three components of the following because they are apt to come off after the slide deck assembly is removed 8a Tension lever assembly 8b Slide lever assembly 8c Brake control lever assembly For...

Page 27: ...For details of reassembling procedure refer to 2 6 1 Assembling slide deck assembly and main deck as sembly Note 7d The pad arm assembly controls the tension level of the tension arm assembly For adjustment of the tension arm assembly refer to 2 6 2 Locating tension pole Note 7e When reinstalling the load brake assembly slightly lift the slide deck assembly upwards because the lower part of the lo...

Page 28: ...rake control plate 10c Rotary encoder 10d Connect gear 10e Reel drive pulley assembly Note 10a When removing refitting parts pay careful attention to the flexible board and so on not to damage them Note 10b When reinstalling the main cam gear and the brake control plate first fit them together so that the protrusion on the brake control plate is set in the slot on the main cam gear as shown below ...

Page 29: ... S11 W11 23 S11 11d 11c 11b 11a Fig 2 4 15 11 11a Catcher T assembly 11b Capstan motor 11c Charge arm assembly 11d Sub cam gear 11e PWB holder Note 11 The following figure shows how to put the charge arm as sembly and sub cam gear assembly together 11d 11c ...

Page 30: ...W7 P7c P4a P4b 20 S11 21 S11 7 S10 15 S9 16 S10 12 S9 22 S11 24 S11 5 S2a 4 S2a 6 S2b 11 S7b 10 S7a 23 S11 7 S4 8 S4 13 S9 Cassette housing assembly CMain deck assembly 1 S1 L1b L1d L1c L1a A BSlide deck assembly 3c 9b 9c 10e 10d 9e 10c 8a 9f 10b 10a 8b 11a 11b 4a 4b 9a 3e 8c 11d 11e 7g 7a 2a 7d 7h 2b 2c 3d 3b 3a 7c 7b 11c 4c 5a 9d 5b 7f 7e Note Classification Part No Symbol in drawing Grease KYOD...

Page 31: ... gear Set the sub cam gear so that its locating hole meets the hole on the main deck assembly This state represents that the mechanism is in the EJECT mode which is the mechanism assembly mode Connect gear Note 2 Set the connect gear so that its locating hole meets the hole on the main deck assembly Note 1 Note 1 Since the connect gear 2 is tightly fixed to the main deck by caulking adjust its pha...

Page 32: ...to 2 3 2 Explanation of mechanism mode 3 Press the end face B of the slide deck assembly reel disk side and the end face C of the main deck assem bly drum assembly side with uniform force so that the two assemblies are tightly pressed to each other Further more press the part D and tighten the screw A Note Tightening torque for screw A 0 069 N m 0 7 kgf cm 3 2 3 3 1 3 3 C C D A B B œ Œ ...

Page 33: ...er the mechanism assembly into the PLAY mode Refer to 2 3 2 Explanation of mechanism mode 2 When the part is positioned down make sure that the part a of the tension arm assembly is located within the range of b 3 If the part a is out of the range turn the pin c to adjust the position ...

Page 34: ...e assembly W3b 1 Idler arm assembly W3a 1 Pinch roller arm assembly Guide arm assembly Cleaner arm assembly W4 1 P4a 1 P4b 1 Slant pole arm assembly S4 3 Drum assembly Guide roller S assembly W5a 3 W5b 1 Rail assembly 2a 2b 3a 3b 3c 3d 3e 2c 4b 5b 4a 5a 4c 2 7 SERVICE NOTE Use the following chart to manage mechanism parts that are removed for disassembling the mechanism Table 2 7 1a ...

Page 35: ...ion lever assembly Slide lever assembly Brake control lever assembly Loading guide Timing belt Center gear assembly S9 2 Motor bracket assembly W9 1 Worm wheel S9 1 Gear holder Main cam gear Brake control plate S10 1 W10a 1 W6 1 Rotary encoder W10a 1 Connect gear W10b 1 Reel drive pulley assembly Catcher T assembly S11 2 Capstan motor W11 1 Charge arm assembly S11 1 Sub cam gear S11 2 PWB holder 7...

Page 36: ... 2 3 4 5 6 7 8 9 10 11 12 13 14 15 MAIN CN105 JIG BOARD REG_3V 10 19 SRV_TX CJIG_RST 9 18 IF_TX I_MTR 8 17 FS_PLL ATFI 7 16 MAIN VCO ENV_OUT 6 22 PB_CLK HID1 5 21 GND JLIP_TX 4 23 JLIP_RX MON_G 3 24 25 CVF_G SRV_RX 2 11 12 13 14 27 28 29 30 26 VPPD Al_3VSYS DRST DISCRI TX2 SRV_GND RX2 TRST TCMK TMS TDO TDI NC SRV_TX CJIG_RST IF_TX I_MTR FS_PLL ATFI MAIN VCO ENV_OUT PB_CLK HID1 GND JLIP_TX VPPD JLI...

Page 37: ...nce connectors are fragile carefully handle them in dis connecting and connecting 3 Shortcircuit between operation and DECK chassis 2 Required test equipment 1 Color TV monitor 2 AC adapter 3 Oscilloscope dual trace type observable 100 MHz or higher frequency Note It is recommended to use one observable 300 MHz or higher frequency 4 Digital voltmeter 5 Frequency counter with threshold level adjust...

Page 38: ...w 1 first and the cover JIG next Fig 3 2 1 Connection for Service support system 9 Alignment tape To be used for check and adjustment of interchange ability of the mechanism 10 INF adjustment lens To be used for adjustment of the camera system 11 INF adjustment lens holder To be used together with the camera stand for operat ing the VideoMovie in the stripped down condition such as the status with...

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