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SERVICE MANUAL

No. 86665

January 2002

SPECIFICATIONS

DIGITAL VIDEO CAMERA

Printed in Japan

This service manual is printed on 100% recycled paper.

GR-DV3000U

No. 86665

GR-DV3000U

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

Connectors

Video output

: 1 V (p-p), 75

Ω

, analog

Video input

: 0.5 V (p-p) – 2.0 V (p-p), 75

Ω

, analog

Audio output

: 300 mV (rms), 1 k

Ω

, analog, stereo

Audio input

: 300 mV (rms), 50 k

Ω

, analog, stereo

Input/output

: 4-pin, IEEE 1394 compliant

PHONE

Headphone output

: ø3.5 mm, stereo

PRINTER

: For an optional video printer equipped

with a PRINT DATA connector

AC Power Adapter/Charger AA-V40U

Power requirement

U.S.A. and Canada

: AC 120 V

, 60 Hz

Other countries

: AC 110 V to 240 V

, 50 Hz/60 Hz

Power consumption

: 23 W

Output

Charge

: DC 7.2 V

, 1.2 A

VTR

: DC 6.3 V

, 1.8 A

Dimensions (W x H x D)

: 68 mm x 38 mm x 110 mm (2-11/16" x

1-1/2" x 4-3/8")

Weight

: Approx. 250 g (0.56 lbs)

Jack Box CU-V504U

General

Dimensions (W x H x D)

: 37.5 mm x 18.5 mm x 55 mm (1-1/2" x

3/4" x 2-3/16")

Weight

: Approx. 30 g (0.67 lbs)

Connectors

USB

: TYPE B

S-VIDEO

Output

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

Ω

, analog

C: 0.29 V (p-p), 75

Ω

, analog

Input

: Y: 0.8 V (p-p) – 1.2 V (p-p), 75

Ω

, analog

C: 0.2 V (p-p) – 0.4 V (p-p), 75

Ω

, analog

EDIT

: ø3.5 mm, 2-pole

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

Camcorder

General

Power supply

: DC 6.3 V

(Using AC Power Adapter/Charger)

DC 7.2 V

(Using battery pack)

Power consumption

LCD monitor off, viewfinder on

: Approx. 4.3 W

LCD monitor on, viewfinder off

: Approx. 5.4 W

Dimensions (W x H x D)

: 76 mm x 90 mm x 194 mm (3" x 3-9/16" x 7-11/16")

(with the LCD monitor closed and the viewfinder pushed back
in, without the lens hood)

Weight

: Approx. 660 g (1.4 lbs)

(without cassette, memory card and battery)
Approx. 740 g (1.7 lbs)
(incl. cassette, memory card and battery)

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

: 1/3.6" CCD

Lens

: F 1.2, f = 4.5 mm to 45 mm, 10:1 power zoom lens

Filter diameter

: ø52 mm

LCD monitor

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

system

Viewfinder

: Electronic viewfinder with 0.44" color 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

Storage media

: SD Memory Card/MultiMediaCard

Compression system

: Still image

: JPEG (compatible)

Moving image

: MPEG4 (compatible)

File size

: Still image

: 4 modes (1600 x 1200 pixels, 1280 x 960

pixels, 1024 x 768 pixels, 640 x 480 pixels)

Moving image

: 2 modes (240 x 176 pixels, 160 x 120 pixels)

Picture quality

: 2 modes (FINE/STANDARD)

Approximate number of storable images
(with the provided memory card [16 MB])

FINE

: 84 (640 x 480 pixels), 40 (1024 x 768 pixels),

25 (1280 x 960 pixels), 16 (1600 x 1200 pixels)

STANDARD

: 255 (640 x 480 pixels), 125 (1024 x 768 pixels),

84 (1280 x 960 pixels), 54 (1600 x 1200 pixels)

For other memory cards,

墌

pg. 17.

Содержание GR-DV3000U - Camcorder - 1.3 Megapixel

Страница 1: ... p p 0 4 V p p 75 Ω analog EDIT ø3 5 mm 2 pole Specifications shown are for SP mode unless otherwise indicated E O E Design and specifications subject to change without notice Camcorder General Power supply DC 6 3 V Using AC Power Adapter Charger 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 4 W Dimensions W x H x D ...

Страница 2: ... 3 3 4 1 PLL VF 3 3 TABLE OF CONTENTS Section Title Page Section Title Page 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 CPU SCHEMATIC DIAGRAM 4 7 4 4 MSD CPU SCHEMATIC DIAGRAM 4 9 4 5 AUDIO AD DA SCHEMATIC DIAGRAM 4 11 4 6 MAIN AUDIO SCHEMATIC DIAGRAM 4 13 4 7 DVMAIN SCHEMATIC DIAGRAM 4 15 ...

Страница 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 ...

Страница 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 ...

Страница 5: ...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 夡 Others Connector Cover Bracket etc Example 2 S1 Remove the two screws S1 for removing the part 1 CN 1a Disconnect the connector 1a SD1 Unsolder at the p...

Страница 6: ...sport 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 replace...

Страница 7: ... MONITOR 50 CN4a MAIN CN101 CCD 2 CN4b MAIN CN102 CCD 20 CN4c MAIN CN104 OP BLOCK ASSY 24 CN5a DSC CN8401 MAIN CN105 80 CN5b DSC CN8402 JACK CN301 20 45 CN6a MAIN CN109 REG CN601 80 CN7a MAIN CN110 E VF ASSY VF BL CN501 22 CN8a EJECT CN2422 MAIN CN113 6 CN8b JACK CN301 MAIN CN111 24 45 CN9a MAIN CN106 PRE MDA CN401 80 CN0a PRE MDA CN406 SENSOR 16 CN0c PRE MDA CN404 DRUM MOTOR 11 CN0d PRE MDA CN402...

Страница 8: ...S b 2 5 S a 2 NOTE a 2 NOTE d 2 NOTE a 2 NOTE a 2 NOTE a 2 NOTE b 2 NOTE c 2 4 S a 2 9 S e 2 10 S e 2 CN c 2 CN b 2 CN a 2 2 15 S f 2 14 S g 2 16 S f 2 12 S f 2 13 S f 2 11 S f 2 FE SW BOARD ASSY FRONT BOARD ASSY WIRERING JUNCTION BOARD ASSY CN e 2 L 2 CN g 2 CN f 2 CN d MIC WIRE 2 CN h 2 NOTE f 2 NOTE e 2 ...

Страница 9: ...3 c NOTE 3 b NOTE 3 b NOTE 3 b BOTTOM CN a 3 28 S b 3 29 S b 3 30 S b 3 31 S b 3 24 S a 3 32 S b 3 33 S c 3 33 32 26 S a 3 25 S a 3 27 S b 3 Fig 1 3 3 SHOE ASSY SW FPC UNIT COVER MENU MICROPHONE FOCUS UNIT 18 S f 2 20 S h 2 21 S h 2 23 S j 2 22 S j 2 19 S f 2 17 S h 2 ...

Страница 10: ... 4 Fig 1 3 5 Fig 1 3 6 Fig 1 3 7 4 34 S 4 35 S 4 L b 4 L a 4 NOTE 4 CN c 4 CN b 4 CN a 4 5 NOTE 5 L 5 CN a 5 CN b 5 6 38 S b 6 37 S a 6 36 S a 6 CN a 6 7 CN a 7 L c 7 L b 7 NOTE 7 L a 7 39 S a 7 41 S b 7 40 S b 7 ...

Страница 11: ...HA ASSY 0 069 N m 0 7 kgf cm 48 S a 10 47 S a 10 49 S a 10 51 S b 10 50 S b 10 54 S b 10 52 S b 10 53 S b 10 L 10 NOTE a 10 NOTE a 10 NOTE b 10 CN a 10 CN b 10 CN c 10 CN d 10 CN e 10 CN f 10 CN407 CN403 FPC NOTE b 10 FPC 9 8 10 11 42 S a 8 43 S a 8 44 S a 8 45 S b 8 L b 8 L a 8 CN a 8 CN b 8 ...

Страница 12: ...t should be replaced together with the entire CCD Base Assembly 1 4 3 How to install 1 With the spacer rubbers attached to the CCD base mount the CCD base in the OP Block Assembly and tighten them together using the two screws 1 2 2 Mount the CCD Board Assembly and attach solder to the 16 points SD1 1 4 4 Replacement of Service Repair Parts The service repair parts for the OP Block Assembly are as...

Страница 13: ...nd then remove the EYE CUP 2 Remove the two screws 3 and 4 3 Pull out the VF assembly and then remove the three screws 5 to 7 to release the FPC ASSY 4 Remove the two screws 8 and 9 then lift the E VF from the BRACKET VF ASSY and take out the FPC ASSY Note7a Be careful not to disconnect or break the FPC ASSY wire 5 Remove the two screws 10 and 11 to remove the UP PER CASE ASSY 6 Remove the LCD UNI...

Страница 14: ...the connec tor when removing the Monitor Cover Assembly Note b Be careful not to damage the parts when remov ing or mounting the Hinge Assembly Note c To unplug the FPC release only the lock of the connector and remove the FPC together with the Hinge Assembly Note d As the backlight is soldered at two points on the Monitor Board Assembly the solder should be re moved when disassembling the backlig...

Страница 15: ...n the Cassette Housing Assembly is moved upward at the unloading end 4 In order to change the mechanism mode at the unload ing end apply 3 V DC to the electrode on the top sur face of the Loading Motor Assembly and then set it to the eject mode 5 If there is any slack tape in the tape transport system wind it inside the cassette tape by turning the Supply Reel Disk from the backside of the Slide D...

Страница 16: ...isk well 2 Though the idler gear and reel disk are engaged with each other the tape is not wound because of over load to the mechanism 3 No FG pulse is output from the reel sensor 4 No power is supplied to the reel sensor 5 Tape transport operation takes place with a cassette having no tape inside 6 The tape slackens and no pulse is produced until the slack is taken up and the tape comes into the ...

Страница 17: ... drawing Screw tightening torque 4 OP BLOCK ASSY Fig 1 4 1 VI III 1 2 3 4 5 6 7 8 9 10 11 NOTE 1 9 Don t reuse the screw because screw lock bond was applied to them 2 Pay careful attention to tightening torque for each screw I 0 069N m 0 7kgf cm 0 078N m 0 8kgf cm III II 0 059N m 0 6kgf cm IV 0 118N m 1 2kgf cm V 0 147N m 1 5kgf cm Fig 1 6 1 9 9 9 9 9 9 I 9 9 9 9 9 9 9 24 25 26 27 28 29 30 31 32 3...

Страница 18: ...e table 1 Circled numbers appearing in this column indicate the order to remove parts When reassembling follow these numbers in the reverse order Circled numbers in this column correspond to those appearing in drawings of this section 2 This column shows part names corresponding to circled numbers in the left column 3 The symbol T or B appearing in this column shows the side which the objective pa...

Страница 19: ...e Connect the Communication cable between the PC ca ble and Jig connector cable when performing a PC ad justment 12 PC cable To be used to connect the VideoMovie and a personal computer with each other when a personal computer is used for adjustment 13 Alignment tape To be used for check and adjustment of interchange ability of the mechanism 14 Cassette torque meter This is used to cheek the back ...

Страница 20: ...assembled assem bled in the C IN mode ASSEMBLY mode Refer to Fig 2 3 1 2 However when the mechanism is removed from the main body it is set in the STOP mode Therefore after the 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 C IN mode compulsory Mechanism assembly Cassette housing assembly Back side of the ...

Страница 21: ...110 06 206 06 210 05 80 34 0 243 29 291 16 333 82 292 310 74 L END LOCK OFF TU ARM ON OFF SLIDE DECK LOAD UL BRAKE S ON OFF BRAKE T ON OFF RELEASE LEVER ROTARY ENCODER MAIN CAM SUB CAM ON a OFF CTL PLATE C R L TENSION ARM UL L END OFF PAD ARM UL L END LOAD SUP L ARM UL L END LOAD TU L ARM UL PRESS LOAD P ROLLER UL b c CAS IN SHORT STOP PLAY REV FWD TU P B START TU P B END END SLIDE SLIDE START 2 3...

Страница 22: ... F ASSY T W NOTE 18 TENSION CTL PLATE ASSY T NOTE ADJUSTMENT 19 BRAKE CTL LEVER ASSY T NOTE ADJUSTMENT 20 MOTOR BRACKET ASSY T Fig 2 4 9 3 S L a 2 L b NOTE ADJUSTMENT 21 GUIDE RAIL ASSY T 2 W S 2 L a L b NOTE ADJUSTMENT 22 SLIDE LEVER 2 ASSY T NOTE ADJUSTMENT 夝 23 LOADING PLATE ASSY T W NOTE ADJUSTMENT 24 MODE GEAR T NOTE 25 EJECT LEVER T Wﬁ NOTEﬁ ADJUSTMENT 26 BASE R ASSY T Fig 2 4 10 Sﬂa Sﬂb 2 L...

Страница 23: ...2 6 Fig 2 4 1 Fig 2 4 2 24 27 2 3 36 35 21 26 17 34 9 10 33 26 6 5 25 11 32 37 14 31 28 16 15 30 29 13 4 12 7 8 22 18 23 20 19 34 26 32 31 16 6 30 30 25 36 3 22 27 20 37 18 29 11 19 TOP VIEW BOTTOM VIEW ...

Страница 24: ...ER 1 NOTE d 1 NOTE1c When mounting the CASSETTE HOUSING ASSY should be at tached in the Eject status Pay heed to the positions of the LOCK LEVER and EJECT LEVER during mounting NOTE1a Be careful not to damage any of the parts during work NOTE1b Special care is required in mounting NOTE1d When mounting be sure to locate the FPC in the gap NOTE 2 5 6 7 NOTE 3 b NOTE2 When mounting be sure to insert ...

Страница 25: ...ful not to lose the spring NOTE 8 SPRING A B NOTE 9 NOTE 10 NOTE6 Perform the following steps for mounting 1 Align the 2 holes with the pins 2 Attach the PINCH ROLLER ARM ASSY by aligning the positions 3 Attach the SUB DECK ASSY by aligning the positions 4 Check that the parts below them are lo cated in the correct positions 5 Tighten the 2 screws 6 Tighten the screw 7 Attach the 2 SLIT WASHER par...

Страница 26: ... need to replace any of its parts remove the SLIDE DECK ASSY as it is NOTE b When mounting pay attention to the positions of the SLIDE LEVER 2 studs and the BRAKE CONTROL LE VER ASSY When mounting position the CONTROL PLATE on the left side Pay attention to the position of the SLIDE GUIDE PLATE during mounting NOTE 12 13 14 12 13 14 SPRING CONTROL PLATE NOTE The spring may have already been diseng...

Страница 27: ...25 L b 20 L a 20 L a 21 L b 21 NOTE 24 NOTE 22 NOTE 21 NOTE 23 NOTE 20 NOTE 25 NOTE 18 NOTE 19 NOTE 20 NOTE 21 NOTE 22 NOTE 15 NOTE 17 NOTE Take care against grease attachment during work NOTES When mounting pay attention to the correct positioning NOTE 16 TOP BOTTOM NOTES When mounting pay atten tion to the correct position ing NOTE When mounting pay attention to the position ing of the sliding p...

Страница 28: ...TE 32 NOTE 34 NOTEﬂ When mounting fold the sliding part to the inner side NOTE When mounting pay attention to the correct positioning NOTE When mounting pay attention to the correct positioning and the FPC layout NOTE When mounting pay attention to the correct positioning and the FPC lay out NOTES When mounting pay attention to the correct positioning and the FPC layout NOTE When mounting pay atte...

Страница 29: ...a NOTE 36 11 DRUM BASE ASSY CAPSTAN MOTOR MAIN DECK ASSY Z27 Ver 4_N NG OK NG NOTE b 35 NOTES a When detaching remove them together and then separate from a NOTE b When mounting attach the DRUM BASE ASSY so that the screw hole is located at the center of the ellipse ...

Страница 30: ...12 14 11 5 4 1 S 1 S b 2 S 1 W 4 W 6 W 12 P 12 P 8 P 14 P 13 15 S 13 W 14 W 21 W 23 W 21 W 25 W 17 W 6 W 5 1 S 10 11 S 2 4 S 1 3 S 21 19 S 20 18 S 20 17 S 20 16 S 27 23 S 35 28 S 35 29 S 36 31 S 35 30 S 32 27 S 27 22 7 3 S b 14 11 S a 12 11 S a 13 11 S b 6 3 S a 20 26 S b 25 28 S b 26 28 S a 24 28 S a 5 3 S b 10 6 S a 9 6 S a 8 6 S b 21 26 W 15 ...

Страница 31: ...osition SUB CAM ASSY 33 CONTROL ARM ASSY Mount the SUB CAM ASSY hole to align with the CONTROL ARM ASSY and Main Deck Assembly holes and then tighten them all together with a screw The screw tightening torque should be 0 039 N m 0 4 kgf cm Note When mounting it make sure that the 29 MAIN CAM ASSY is in the correct mounting position REEL GEAR 1 Align the REEL GEAR 1 with the Main Deck Assembly hole...

Страница 32: ...into the unit tighten the screws A B while applying pressure to the stud shaft on the Slide Guide plate The pressure applied should be enough to enable utili zation of the rebounding force of the springs The tightening torque should be 0 069 N m 0 7 kgf cm 4 Check the operation Repeat unloading and loading several times and make sure that these operations can be performed smoothly without producin...

Страница 33: ...ad Arm As semblies Use Fig 2 6 2 as the reference unless otherwise specified 1 Set the PLAY mode Se Fig 2 3 8 2 Loosen the screw A 3 With the take up side at the bottom align the extreme end of the Tension Arm Assembly with the crossed grooves on the screw B that retains the Loading Motor Assembly and then tighten the screw A The tightening torque should be 0 069 N m 0 7 kgf cm 4 Check the operati...

Страница 34: ... I 4 I 4 CASSETTE HOUSING ASSY UPPER BASE ASSY DRUM ASSY 2 I 4 I 4 2 I 4 I 5 2 I 4 I 6 REEL DISK ASSY SUP REEL DISK ASSY TU TENSION ARM ASSY SLIDE DECK ASSY SLANT POLE ARM ASSY SWING ARM ASSY TU ARM ASSY PAD ARM ASSY SUP BRAKE ASSY TU BRAKE ASSY REEL COVER ASSY 2 I 4 I 7 a 2 I 4 I 7 b Fig Fig Fig Fig Fig Fig Fig 2 3 6 7 8 9 10 13 12 14 11 5 4 1 ...

Страница 35: ...ET ASSY BASE R ASSY ROTARY ENCODER GEAR COVER ASSY DRUM BASE ASSY SLIDE ARM ASSY CONNECT GEAR 2 SUB CAM ASSY CONTROL ARM ASSY REEL GEAR 1 CAPSTAN MOTOR MAIN DECK ASSY MAIN CAM ASSY GUIDE RAIL ASSY SLIDE LEVER 2 ASSY LOADING PLATE ASSY MODE GEAR EJECT LEVER BRAKE CTL LEVER ASSY Fig Fig Fig Fig Fig 18 24 30 32 34 36 35 33 31 20 21 37 25 26 27 29 28 23 22 17 16 19 15 ...

Страница 36: ...to 5 or 23 pin GND COMMUNICATION CABLE JIG CONNECTOR Fig 2 8 2 MAIN BOARD ASSY CN107 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 D_REG3V SRV_RX SRV_TX DRST TDO TDI TCMK TMS TRST GND SBE SPA TX2 RX2 GND JLIP_RX PB_CLK JLIP_TX GND HID1 ENV_OUT ATFI DISCRI MAIN_VCO VPPD AL_3VSYS FS_PL...

Страница 37: ...over 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 CN107 ENV_OUT CN107 HID1 Flatten the waveform Misalignment of guide roller height on the take up side Misalignment of guide roller height on the supply side COVER Cassette COVER Cassette rear Refer to page 2 19 MAIN CN...

Страница 38: ...he patch cords see the 4 1 BOARD IN TERCONNECTIONS SECTION 4 CHART AND DIA GRAM 3 Shortcircuit between operation un it and DECK chassis 2 Required test equipment 1 Color TV monitor 2 AC power adapter charger 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 thre...

Страница 39: ...with each other when a personal computer is used for adjustment 9 Alignment tape To be used for check and adjustment of interchange ability of the mechanism 10 Service support system To be used for adjustment with a personal computer 11 INF adjustment lens To be used for adjustment of the camera system 12 INF adjustment lens holder To be used together with the camera stand for operat ing the Video...

Страница 40: ...LECTRONIC VIEWFINDER E VF ADJUSTMENT Notes Unless otherwise specified all measurement points and adjustment parts are located on MONITOR board 1 Observe waveform at pin 24 of the IC7401 or TL7401 RPD 2 For the wavefor shown in the waveform chart Fig 3 4 1 equalize the width of A and B with each other by ad justing R7421 3 4 1 PLL VF Subject Camera picture Gray scale Mode EE Equipment Oscilloscope ...

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