JVC GR-DVL120U Service Manual Download

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SERVICE MANUAL

No. 86671

March 2002

SPECIFICATIONS

DIGITAL VIDEO CAMERA

Printed in Japan

This service manual is printed on 100% recycled paper.

GR-DVL120U

No. 86671

GR-DVL120U

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

:
:
:

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

Camcorder

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

Dimensions (W x H x D)

: 83 mm x 94 mm x 223 mm (3-5/16" x 3-3/4" x 8-13/16")

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

Weight

: Approx. 630 g (1.4 lbs)

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 1.6, f = 3.9 mm to 62.4 mm, 16:1 power zoom lens

Filter diameter

: ø40.5 mm

LCD monitor

: 2.5" diagonally measured, LCD panel/TFT active matrix

system

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.

Connectors

S-Video

Output

: Y: 1 V (p-p), 75

Ω

, analog

C: 0.29 V (p-p), 75

Ω

, analog

Video output

: 1 V (p-p), 75

Ω

, analog

Audio output

: 300 mV (rms), 1 k

Ω

, analog, stereo

Output

: 4-pin, IEEE 1394 compliant

Input

: 4-pin, IEEE 1394 compliant

AC Adapter

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.

Summary of Contents for GR-DVL120U

Page 1: ...H x D 83 mm x 94 mm x 223 mm 3 5 16 x 3 3 4 x 8 13 16 with the LCD monitor closed and the viewfinder pushed down Weight Approx 630 g 1 4 lbs 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 6 f 3 9 mm to 62 4 mm 16 1 power zoom lens Filter diameter ø40 5 mm LCD monitor 2 5 diagonally measured LCD panel...

Page 2: ...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 MONITOR ASSEMBLY 1 9 1 4 1 Disassembly assemb...

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: ...sembly 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 夡 Others Connector Cover Bracket etc Example 2 S1 Remove the two screws S1 for removing the part 1 CN 2a Disconnect the connector 2a SD1 Unsolder at the point SD1...

Page 6: ...t system optical lens surface 1 3 DISASSEMBLY ASSEMBLY OF CABINET PARTS AND BOARD ASSEMBLY 1 3 1 Disassembly flow chart This flowchart indicates the disassembly step for the cabi 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 Table 1 2 1 Table 1 3 1 Torque driver YTU94088 1 Bit YTU94088 003 2 3 Chip IC replacement...

Page 7: ...ny parts Particularly take care not to scratch or stain the lenses NOTE 8 As screw No 24 is hidden behind the cassette cover open the cassette cover to enable re moval of the screw NOTE 0a As the CN572 is located at the back of the as sembly unplug the three connectors and re move the screws before disconnecting the CN572 NOTE 0b Be careful not to damage any of the switches CONN No Pin No CONNECTO...

Page 8: ...1 4 2 13 14 15 8 S 2 d 11 S 2 a CN 2 10 S 2 a 9 S 2 a 4 S 2 b NOTE CAP DC JACK 2 11 6 7 8 BOTTOM SIDE REAR SIDE 9 10 L 2 7 S 2 b 6 S 2 b 5 S 2 c 3 S 2 a Fig 1 3 1 1 1 S 1 a 2 S 1 b L 1 a L 1 b Fig 1 3 2 ...

Page 9: ...1 5 Fig 1 3 3 3 NOTE a L 3 b 14 S 3 b CN 3 13 S 3 b 12 S 3 a L 3 a NOTE b 3 3 Fig 1 3 4 4 BRACKET OP ASSY CN 4 b CN 4 a CN 4 c 17 S 4 16 S 4 15 S 4 ...

Page 10: ...1 6 Fig 1 3 6 5 7 6 21 S 7 22 S 7 18 S 6 19 S 6 20 S 6 0 196 N m 2 0 kgf cm 8 8 NOTE CN 8 23 S 8 24 S 8 25 S 8 26 S 8 Fig 1 3 5 ...

Page 11: ...31 S 9 b 30 S 9 b 27 S 9 a L 9 b CN 9 28 S 9 b Fig 1 3 8 Fig 1 3 9 NOTE a EJECT SW 10 32 S 10 33 S 10 CN 10 b CN 10 c CN 10 a CN 10 d 10 NOTE b 10 11 12 L 11 b 34 S 11 a 36 S 11 b 35 S 11 b L 11 a SHIELD PLATE CN 11 a CN 11 b CN 11 c ...

Page 12: ...b 43 S 14 b 41 S 14 a 40 S 14 a 39 S 14 a L 15 46 S 15 b 45 S 15 b 47 S 15 b 44 S 15 a COVER HINGE PLATE SPK SW 14 15 CN 14 0 147 N m 1 5 kgf cm NOTE 15 NOTE 14 Fig 1 3 10 13 38 S 13 b 37 S 13 a NOTE a NOTE b L 13 13 13 CN 13 ...

Page 13: ...d assembly DIF sheet and bracket FRM2 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 6 to 8 and then remove the hinge covers 1 and 2 by disengaging a total of four hooks L g L h at the two sides 2 Separate the SW board assembly and the FPC from the hinge assembly Note c When connecting the FPC arrange the FPC wire by wi...

Page 14: ... the VF HINGE ASSY Note b Be careful not to damage the FPC and not to break any wires during the operation 0 078 N m 0 8 kgf cm 0 098 N m 1 0 kgf cm S a 1 EYE CUP CASE A VF 13 S b 4 13 L b 13 13 L c 13 L a 13 S c 5 13 S a 2 13 S d 8 13 S a 3 13 S c 6 13 S c 7 13 CASE B VF VF HINGE ASSY HOLDER LCD VF LENS ASSY FPC LEVER VF Note a 13 Note b SPRING VF CAP VF 5 Remove the screw 8 and the remove the CA...

Page 15: ...sensor Note 5b 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 Note 5c Pay careful attention to the orientation of the LPF 2 Set the CCD base assembly with care...

Page 16: ...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 17: ...rque 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 1 2 3 4 5 6 7 8 VF UNIT B W Fig 1 5 1 2 IV VII IV IV Removing order of screw Place to stick screw Reference drawing Screw tightening torque 1 2 3 4 5 6 7 8 OP BLOCK ASSY Fig 1 6 1 1 2 3 4 5 6 7 8 9 10 11 NOTE 1 Dont t reu...

Page 18: ...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 19: ...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 20: ...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 21: ...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 22: ...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 23: ...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 24: ... 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 25: ...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 26: ...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 27: ...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 28: ...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 29: ...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 30: ... 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 31: ...7 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 KYODO...

Page 32: ... 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 33: ...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 34: ...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 35: ...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 36: ...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 37: ...nnector cable schematic diagram 20 20 AL_3VSYS 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 LABEL MAIN CN105 JIG BOARD PIN NO DISCRI 10 19 DRST VPPD 9 18 SRV_RX JLIP_RX 8 17 JLIP_TX GND 7 16 HID1 PB_CLK 6 15 ENV_OUT MAIN_VCO 5 14 ATFI FS_PLL 4 13 I_MTR IF_TX 3 12 CJIG_RST SRV_TX 2 11 REG_3V VPPC AL_3VSYS DRST SRV_RX JLIP_TX HID1 ENV_OUT ATFI I_MTR CJIG_RST REG_3V DISCRI VPPD JLIP_RX GND PB_CLK ...

Page 38: ...n the tape has been played back again Moreover perform readjustment as required 6 When the recording has been played back again play back the self recording to confirm that the waveform is flat Fig 2 8 3 Fig 2 8 4 Fig 2 8 5 CN105 ENV_OUT CN105 HID1 Flatten the waveform Misalignment of guide roller height on the take up side Misalignment of guide roller height on the supply side NOTE The plate serv...

Page 39: ...ragile 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 adjuster 6 Personal comput...

Page 40: ... Remove one screw 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...

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