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SERVICE MANUAL
DIGITAL VIDEO CAMERA

GR-DV3000U

GR-DV3000U

SPECIFICATIONS
Camcorder
General
Power supply : DC 6.3 V DC 7.2 V (Using AC Power Adapter/Charger) (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 : 0C to 40C (32F to 104F) Operating humidity : 35% to 80% Storage temperature : 20C to 50C (4F to 122F) Pickup : 1/3.6" CCD Lens : F 1.2, f = 4.5 mm to 45 mm, 10:1 power zoom lens Filter diameter : 52 mm LCD monitor : 3.5" diagonally measured, LCD panel/TFT active matrix system Viewfinder : Electronic viewfinder with 0.44" color LCD Speaker : Monaural AV Video output Video input Audio output Audio input DV Input/output PHONE Headphone output PRINTER

Connectors
: : : : 1 V (p-p), 75 , analog 0.5 V (p-p) 2.0 V (p-p), 75 , analog 300 mV (rms), 1 k, analog, stereo 300 mV (rms), 50 k, analog, stereo

: 4-pin, IEEE 1394 compliant : 3.5 mm, stereo : For an optional video printer equipped with a PRINT DATA connector

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

AC Power Adapter/Charger AA-V40U
Power requirement U.S.A. and Canada Other countries Power consumption Output Charge VTR Dimensions (W x H x D) Weight : AC 120 V`, 60 Hz : AC 110 V to 240 V`, 50 Hz/60 Hz : 23 W : DC 7.2 V , 1.2 A : DC 6.3 V , 1.8 A : 68 mm x 38 mm x 110 mm (2-11/16" x 1-1/2" x 4-3/8") : Approx. 250 g (0.56 lbs)

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

Digital Video Camera
Format Signal format Recording/Playback format Cassette Tape speed DV format (SD mode) NTSC standard Video: Digital component recording Audio: PCM digital recording, 32 kHz 4-channel (12-bit), 48 kHz 2-channel (16-bit) : Mini DV cassette : SP: 18.8 mm/s LP: 12.5 mm/s : SP: 80 min. LP: 120 min. : : : :

Jack Box CU-V504U
General
Dimensions (W x H x D) Weight : 37.5 mm x 18.5 mm x 55 mm (1-1/2" x 3/4" x 2-3/16") : Approx. 30 g (0.67 lbs)

JVC CANADA INC.
Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 : 16800 Rte Trans-Canadienne, Kirkland, Quebec H9H 5G7 Montreal Vancouver : 13040 Worster Court Richmond, B.C. V6V 2B3
(416)293-1311 (514)871-1311 (604)270-1311
No. 86665

Maximum recording time (using 80 min. cassette)

Connectors
USB S-VIDEO Output Input EDIT : TYPE B : Y: 1 V (p-p), 75 , analog C: 0.29 V (p-p), 75 , analog : Y: 0.8 V (p-p) 1.2 V (p-p), 75 , analog C: 0.2 V (p-p) 0.4 V (p-p), 75 , analog : 3.5 mm, 2-pole

Digital Still Camera Function
Storage media Compression system : SD Memory Card/MultiMediaCard : 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, pg. 17.

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

S40895-04

Printed in Japan

This service manual is printed on 100% recycled paper. COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No. 86665 January 2002

TABLE OF CONTENTS
Section Title Page Section Title Page 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 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 DISASSEMBLY OF THE 4 OP BLOCK AND CCD BOARD ASSEMBLIES ................................................. 1-8 1.4.1 Precautions ..................................................................... 1-8 1.4.2 How to remove ................................................................ 1-8 1.4.3 How to install .................................................................. 1-8 1.4.4 Replacement of Service Repair Parts ............................ 1-8 1.5 7 E.VF(COLOR) ................................................................... 1-9 1.5.1. Disassembly/Assembly of the 7 E.VF(COLOR) ............. 1-9 1.6 DISASSEMBLY/ASSEMBLY OF THE @ MONITOR ASSEMBLY 1-10 1.6.1 @ Monitor Assembly and Hinge Assembly ................... 1-10 1.7 MANUAL EJECTION OF THE CASSETTE TAPE ............... 1-11 1.8 EMERGENCY DISPLAY ..................................................... 1-12 1.9 SERVICE NOTE .................................................................. 1-13 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 4.8 VIDEO I/O SCHEMATIC DIAGRAM ......................................... 4-17 4.9 CDS/AD SCHEMATIC DIAGRAM ............................................. 4-19 4.10 DSP SCHEMATIC DIAGRAM ................................................ 4-21 4.11 OP DRIVE SCHEMATIC DIAGRAM ...................................... 4-23 4.12 TG/VDR SCHEMATIC DIAGRAM .......................................... 4-25 4.13 DSC SCHEMATIC DIAGRAM ................................................ 4-27 4.14 DSC IF AND SD SCHEMATIC DIAGRAMS ........................... 4-29 4.15 USB SCHEMATIC DIAGRAM ................................................ 4-31 4.16 MDA SCHEMATIC DIAGRAM ................................................ 4-33 4.17 PRE/REC SCHEMATIC DIAGRAM ........................................ 4-35 4.18 JUNCTION SCHEMATIC DIAGRAM ..................................... 4-37 4.19 REG SCHEMATIC DIAGRAM ................................................ 4-39 4.20 MONITOR SCHEMATIC DIAGRAM ....................................... 4-41 4.21 JACK SCHEMATIC DIAGRAM .............................................. 4-43 4.22 EJECT, DECK OPE. AND CCD SCHEMATIC DIAGRAMS .. 4-45 4.23 FE SW, FRONT, ZOOM UNIT, POWER OPE. UNIT, FOCUS UNIT AND SW FPC UNIT SCHEMATIC DIAGRAMS .. 4-47 4.24 VF BL SCHEMATIC DIAGRAM .............................................. 4-49 4.25 MAIN CIRCUIT BOARD ......................................................... 4-51 4.26 DSC CIRCUIT BOARD ........................................................... 4-57 4.27 PRE/MDA CIRCUIT BOARD .................................................. 4-59 4.28 JUNCTION AND JACK CIRCUIT BOARDS ........................... 4-61 4.29 REG CIRCUIT BOARD .......................................................... 4-63 4.30 MONITOR CIRCUIT BOARD ................................................. 4-65 4.31 EJECT AND DECK OPE. CIRCUIT BOARDS ....................... 4-67 4.32 CCD CIRCUIT BOARD .......................................................... 4-69 4.33 FE SW & FRONT CIRCUIT BOARDS ................................... 4-70 4.34 VF BL CIRCUIT BOARD ........................................................ 4-71 4.35 VOLTAGE CHARTS ............................................................... 4-72 4.36 POWER SYSTEM BLOCK DIAGRAM ................................... 4-77 4.37 VIDEO SYSTEM BLOCK DIAGRAM ...................................... 4-79 4.38 REGULATOR SYSTEM BLOCK DIAGRAM .......................... 4-83 5. PARTS LIST 5.1 PACKING AND ACCESSORY ASSEMBLY ............... 5-1 5.2 FINAL ASSEMBLY ..................................................... 5-3 5.3 MECHANISM ASSEMBLY ......................................... 5-6 5.4 ELECTRONIC VIEWFINDER ASSEMBLY ................ 5-8 5.5 MONITOR ASSEMBLY .............................................. 5-9 5.6 ELECTRICAL PARTS LIST ................................................. 5-10 MAIN BOARD ASSEMBLY <01> ............................................. 5-10 DSC BOARD ASSEMBLY <02> .............................................. 5-17 PRE/MDA BOARD ASSEMBLY <03> ..................................... 5-18 JUNCTION BOARD ASSEMBLY <04> ................................... 5-19 REG BOARD ASSEMBLY <05> .............................................. 5-19 MONITOR BOARD ASSEMBLY <06> ..................................... 5-20 JACK BOARD ASSEMBLY <07> ............................................. 5-22 EJECT BOARD ASSEMBLY <08> .......................................... 5-22 DECK OPE. BOARD ASSEMBLY <09> .................................. 5-22 CCD BOARD ASSEMBLY <10> .............................................. 5-23 FE SW BOARD ASSEMBLY <11> .......................................... 5-23 FRONT BOARD ASSEMBLY <12> ......................................... 5-23 VF BL BOARD ASSEMBLY <13> ............................................ 5-23

2. MECHANISM ADJUSTMENT 2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR .. 2-1 2.1.1 Precautions ..................................................................... 2-1 2.1.2 Notes on procedure for disassemby/assembly ............... 2-1 2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT ......................................... 2-2 2.2.1 Tools required for adjustments ........................................ 2-2 2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-3 2.3.1 General statement .......................................................... 2-3 2.3.2 Explanation of mechanism mode ................................... 2-3 2.3.3 Mechanism timing chart .................................................. 2-4 2.4 DISASSEMBLING PROCEDURE TABLE ............................. 2-5 2.4.1 Disassembly/assembly ................................................... 2-7 2.4.2 List of procedures for disassembly ............................... 2-13 2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE .. 2-14 2.6 MECHANISM ADJUSTMENTS .......................................... 2-15 2.6.1 Adjustment of the slide guide plate ............................... 2-15 2.6.2 Adjustment of the Tension Arm and Pad Arm Assemblies 2-16 2.6.3 Adjustment of the Slide Lever 2 .................................... 2-16 2.7 SERVICE NOTE .................................................................. 2-17 2.8 JIG CONNECTOR CABLE CONNECTION ........................ 2-19 2.8.1 Tape pattern check ....................................................... 2-20 3. ELECTRICAL ADJUSTMENT 3.1 PRECAUTION ....................................................................... 3.2 SETUP .................................................................................. 3.3 MONITOR ADJUSTMENT .................................................... 3.3.1 PLL (MONI) .................................................................... 3.4 ELECTRONIC VIEWFINDER (E.VF) ADJUSTMENT ........... 3.4.1 PLL (VF) ......................................................................... 3-1 3-2 3-3 3-3 3-3 3-3

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.

1. Locations requiring special caution are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals. 2. Parts identified by the ! symbol and shaded ( ) parts are critical for safety. Replace only with specified part numbers. Note: Parts in this category also include those specified to comply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission. 3. Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified. 4. Use specified internal wiring. Note especially: 1) Wires covered with PVC tubing 2) Double insulated wires 3) High voltage leads 5. Use specified insulating materials for hazardous live parts. Note especially: 1) Insulation Tape 3) Spacers 5) Barrier 2) PVC tubing 4) Insulation sheets for transistors 6. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.) wrap ends of wires securely about the terminals before soldering.

Precautions during Servicing

12. Crimp type wire connector In such cases as when replacing the power transformer in sets where the connections between the power cord and power transformer primary lead wires are performed using crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps. 1) Connector part number : E03830-001 2) Required tool : Connector crimping tool of the proper type which will not damage insulated parts. 3) Replacement procedure (1) Remove the old connector by cutting the wires at a point close to the connector. Important : Do not reuse a connector (discard it).

cut close to connector
Fig.3 (2) Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.
15 mm

Fig.4 (3) Align the lengths of the wires to be connected. Insert the wires fully into the connector. Fig.1 7. Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.) 8. Check that replaced wires do not contact sharp edged or pointed parts. 9. When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.

Metal sleeve

Connector
Fig.5 (4) As shown in Fig.6, use the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

Power cord
1.2 5 2.0 5.5

Crimping tool

Fig.2 10. Also check areas surrounding repaired locations. 11. Products using cathode ray tubes (CRTs) In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission. Consequently, when servicing these products, replace the cathode 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.

Fig.6 (5) Check the four points noted in Fig.7.
Not easily pulled free Crimped at approx. center of metal sleeve

Conductors extended Wire insulation recessed more than 4 mm

Fig.7

I

S40888-01

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 externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below. 2. Dielectric strength test Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below. 3. Clearance distance When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metallic parts. See table 1 below.

Fig. 8 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 plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following table 2.

a

b c

Externally exposed accessible part

Z V

A

Fig. 9 5. Grounding (Class 1 model only) Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.). Measuring Method: Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.

Fig. 10

Table 1 Specifications for each region

Table 2 Leakage current specifications for each region Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

II

S40888-01

SECTION 1 DISASSEMBLY
1.1 BEFORE ASSEMBLY AND DISASSEMBLY 1.1.1 Precautions 1. Be sure to remove the power supply unit prior to mounting and soldering of parts. 2. When removing a component part that needs to disconnect the connector and to remove the screw for removing itself, first disconnect the connecting wire from the connector and then remove the screw beforehand. 3. When connecting and disconnecting the connectors, be careful not to damage the wire. 4. Carefully remove and handle the part to which some spacer or shield is attached for reinforcement or insulation. 5. When replacing chip parts (especially IC parts), desolder completely first (to prevent peeling of the pattern). 6. Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0.078Nm(0.8kgfcm). 1.1.2 Assembly and disassembly
STEP No. PART Fig.No. POINT NOTE2a NOTE2b NOTE2c NOTE2d NOTE

1.1.4 Disconnection of Connectors (Wires) Connector Pull both ends of the connector in the arrow direction, remove the lock and disconnect the flat wire.
Flat wire

Connector

Fig. 1-1-1 Connector 1 Extend the locks in the direction of the arrow for unlocking and then pull out the wire. After removing the wire, immediately restore the locks to their original positions because the locks are apt to come off the connector.
Flat wire

1 2

ZOOM OPE UNIT Fig.1-3-1 3(S1),(L1a),5(L1b),CN1a FRONT COVER ASSY Fig.1-3-2a CN2a,CN2b,2(S2a),(S2b), (S2c),(S2d),2(S2e),CN2c

(1)

(2)

(3)

(4)

(5)

Connector

(1) Indicate the disassembly steps. When assembling, perform in the reverse order of these steps. This number corresponds to the number in the disassembly 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 (Others) Connector, Cover, Bracket, etc. : Remove the two screws (S1) for removing the part 1. CN 1a : Disconnect the connector 1a. SD1 : Unsolder at the point SD1. (5) Precautions on disassembly/assembly. 1.1.3 Destination of connectors Note: Three kinds of double-arrows in connection tables respectively show kinds of connector/wires. : Wire : Flat wire : Board to Board connector [Example] Note: Remove the parts marked in .
CONN. No. 1a JUNCTION CONNECTOR CN1102 Pin No. 8

Fig. 1-1-2 Connector 2 B-B connector Pull the board by both the sides in the direction of the arrow for disconnecting the B-B connector.

Connector

(Example) 2 (S1)

Connector

Fig. 1-1-3 Connector 3

Connector

ZOOM OPE

Fig. 1-1-4 Connector 4 1-1

1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT 1.2.1 Tools required for adjustments
1 Torque driver YTU94088 2 Bit YTU94088-003

1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND BOARD ASSEMBLY 1.3.1 Disassembly flow chart This flowchart indicates the disassembly step for the cabinet parts and board assembly in order to gain access to item(s) to be serviced. When reassembling, perform the step(s) in reverse order.

1
3 Tweezers P-895 4 Chip IC replacement jig PTS40844-2

ZOOM OPE UNIT

2

FRONT COVER ASSY (Inc. FE SW BOARD ASSY, FRONT BOARD ASSY, JUNCTION BOARD ASSY, SHOE ASSY, SW FPC UNIT, FOCUS UNIT, MICROPHONE)

5

Cleaning cloth KSMM-01

3 4
Table 1-2-1

UPPER CASE ASSY (Inc. @ MONITOR ASSY) OP BLOCK ASSY DSC BOARD ASSY

5 6 7 8 9 0 !
/

1. Torque driver 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. 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.

REAR COVER ASSY

E. VF ASSY LOWER CASE ASSY

MAIN BOARD ASSY

PRE/MDA BOARD ASSY, MECHANISM ASSY

Table 1-3-1

1-2

1.3.2 Disassembly method
STEP No. PART Fig.No. POINT NOTE2a NOTE2b NOTE2c NOTE2d NOTE2e NOTE2f NOTE

NOTE 2a: Open the cassette cover after removing the screws. NOTE 2b: Be sure to confirm the position of the screws. NOTE 2c: Be careful not to damage the FPC when unplugging it. NOTE 2d: As the 7 OP Block Assembly is exposed as a result of the above steps, be careful not to damage any of its parts. Take particular care not to scratch the lens surfaces. NOTE 2e: Treat the microphone wire with care. NOTE 2f: When mounting, be careful not to damage the switches. NOTE 3a/3b: Be sure to confirm the position of the screws.

1 2

ZOOM OPE UNIT Fig.1-3-1 3(S1),(L1a),5(L1b),CN1a FRONT COVER ASSY Fig.1-3-2a CN2a,CN2b,2(S2a),(S2b), (S2c),(S2d),2(S2e),CN2c

FRONT BOARD ASSY Fig1-3-2b (S2f),CN2d,CN2e FE SW BOARD ASSY JUNCTION BOARD ASSY SHOE ASSY SW FPC UNIT FOUCUS UNIT MICROPHONE 2(S2f),CN2h (S2g),2(L2),2(S2f), CN2f,CN2g Fig1-3-2c (S2h) (S2f),COVER(MENU),(S2f) 2(S2h),SPACER 2(S2j)

3 4 5 6 7 8 9 0 !
/

UPPER CASE ASSY Fig.1-3-3 3(S3a),6(S3b),(S3c),CN3a Inc.MONITOR ASSY OP BLOCK ASSY Fig.1-3-4 CN4a,CN4b,CN4c, 2(S4),(L4a),(L4b) DSC BOARD ASSY Fig.1-3-5 (L5),CN5a,CN5b REAR COVER ASSY Fig.1-3-6 CN6a,2(S6a),(S6b) E.VF ASSY Fig.1-3-7 CN7a,(S7a),2(S7b),(L7a), (L7b),2(L7c)

NOTE3a NOTE3b NOTE3c NOTE4 NOTE5 NOTE7 -

NOTE 3c: For the disassembly of the @ Monitor Assembly, see section 1.6, "Disassembly/Assembly of @ Monitor Assembly". NOTE 4:

For the disassembly of the 4 OP block assembly, see section 1.4, "Disasembly/Assembly of 4 OP block assembly. Be careful not to damage the CONNECTOR. For the disassembly of the 7 E.VF, see section 1.4, "Disassembly/Assembly of 7 E.VF".

NOTE 5: NOTE 7:

LOWER CASE ASSY Fig.1-3-8 CN8a,CN8b,3(S8a),(S8b), 2(L8a),(L8b) MAIN BOARD ASSY Fig.1-3-9 CN9a,(S9),(L9) PRE/MDA BOARD Fig.1-3-10 3(S0a),BKT(MECHA)ASSY, ASSY, 2(S0b), MECHANISM ASSY SHIELD COVER(PRE/REC), (L0),CN0a,CN0b,CN0c, CN0d,CN0e,CN0f 3(S0b)

NOTE0a NOTE0b

NOTE 0a: The FPC of the loading motor should be mounted by inserting it between the Mechanism Assembly and the PRE/MDA Board Assembly. NOTE 0b: When mounting the shield cover, push down the FPC of the drum while attaching it.

Table 1-3-2 Note: Remove the parts marked in
CONN. No. CN1a CN2a CN2b CN2c CN2d CN2e CN2f CN2g CN2h CN3a CN4a CN4b CN4c CN5a CN5b CN6a CN7a CN8a CN8b CN9a CN0a CN0c CN0d CN0e CN0f JUNCTION JUNCTION MAIN FRONT FRONT FRONT JUNCTION JUNCTION FE SW MAIN MAIN MAIN MAIN DSC DSC MAIN MAIN EJECT JACK MAIN PRE/MDA PRE/MDA PRE/MDA PRE/MDA PRE/MDA CONNECTOR CN1102 CN1101 CN103 CN2413 CN2412 CN2411 CN1104 CN1105 CN1181 CN108 CN101 CN102 CN104 CN8401 CN8402 CN109 CN110 CN2422 CN301 CN106 CN406 CN404 CN402 CN407 CN403

.
Pin No.



ZOOM OPE UNIT 8 MAIN CN112 16 SHOE ASSY 16 EJECT CN2411 6 MICROPHONE 3 SW FPC UNIT 6 FOCUS UNIT 6 MICROPHONE 3 JUNCTION CN1103 3 MONITOR 50 CCD 2 CCD 20 OP BLOCK ASSY 24 MAIN CN105 80 JACK CN301 20/45 REG CN601 80 E.VF ASSY(VF BL) CN501 22 MAIN CN113 6 MAIN CN111 24/45 PRE/MDA CN401 80 SENSOR 16 DRUM MOTOR 11 HEAD 8 ROTARY ENCODER 6 LOADING MOTOR 6

Table 1-3-3 1-3

1
(L 1 b)
CN 2 g CN 2 f 15 (S 2 f) 14 (S 2 g) JUNCTION BOARD ASSY NOTE 2 f FE SW BOARD ASSY 16 (S 2 f) CN 2 d 11 (S 2 f)

3 (S 1 ) 2 (S 1 )

NOTE 2 e

12 (S 2 f)

(L 1 a)

1 (S 1 )

2

(L 2 )

13 (S 2 f) CN 2 h CN 2 e

CN 1 a
FRONT BOARD ASSY

WIRERING
MIC WIRE

Fig. 1-3-1

Fig. 1-3-2b

5 (S 2 a) CN 2 b 4 (S 2 a) 9 (S 2 e)

NOTE 2 a

10 (S 2 e)

2

NOTE 2 d

6 (S 2 b) NOTE 2 a

CN 2 a NOTE 2 c CN 2 c

NOTE 2 a

(BOTTOM)
7 (S 2 c) NOTE 2 a

8
8 (S 2 d) NOTE 2 b

7

Fig. 1-3-2a 1-4

SHOE ASSY

17 (S 2 h) 18 (S 2 f) 20 (S 2 h) 21 (S 2 h) FOCUS UNIT 23 (S 2 j) SW FPC UNIT 19 (S 2 f) 22 (S 2 j)

COVER (MENU)

MICROPHONE

Fig. 1-3-2c
NOTE 3 b

32

CN 3 a 33 (S 3 c) NOTE 3 b

3

NOTE 3 b 32 (S 3 b)

25 (S 3 a) 26 (S 3 a)

33

27 (S 3 b) NOTE 3 a NOTE 3 a

NOTE 3 c

24 (S 3 a)

(BOTTOM)

27

28 29

30

31
28 (S 3 b) 29 (S 3 b) 30 (S 3 b)

31 (S 3 b)

12
NOTE 3 c

Fig. 1-3-3 1-5

6

36 (S 6 a)

37 (S 6 a)

34 (S 4 )

(L 4 a) (L 4 b)

35 (S 4 )

NOTE 4

4
CN 4 c

CN 4 a CN 4 b

38 (S 6 b) CN 6 a

Fig. 1-3-4

Fig. 1-3-6

41 (S 7 b) 40 (S 7 b)

(L 7 a) (L 7 b) (L 7 c)

CN 7 a

7
CN 5 b NOTE 5 CN 5 a
5

39 (S 7 a)

NOTE 7

(L 5 )

Fig. 1-3-5 1-6

Fig. 1-3-7

10

8

44 (S 8 a)

(L 8 a) 45 (S 8 b)

CN 8 b

CN 8 a (L 8 b) 42 (S 8 a) 43 (S 8 a)

CN 9 a

9

10

11
(L 9 ) 46 (S 9 )

9

Fig. 1-3-8

Fig. 1-3-9

NOTE 10 a NOTE 10 a NOTE 10 b
CN407 CN403

FPC

CN 10 d CN 10 c

CN 10 e CN 10 f SHIELD COVER (PRE/REC)

CN 10 b

54 (S 10 b) 52 (S 10 b) 53 (S 10 b)
10
(L 10 )

50 (S 10 b)
51 (S 10 b)

11
CN 10 a NOTE 10 b

49 (S 10 a)

FPC

BKT (MECHA) ASSY

47 (S 10 a) 48 (S 10 a)

: 0.069 Nm (0.7 kgfcm)
Fig. 1-3-10 1-7

1.4 DISASSEMBLY OF THE 4 OP BLOCK AND CCD BOARD ASSEMBLIES 1.4.1 Precautions 1. Take care in handling the CCD image sensor, optical LPF and lens components2when performing maintenance etc., especially with regard to surface contamination, attached dust or scratching. If fingerprints are present on the surface they should be wiped away using either a silicon paper, clean chamois or the cleaning cloth recommended by the Video Product Division. 2. The CCD image sensor may have been shipped with a protective sheet attached to the transmitting glass. When replacing the CCD image sensor, do not peel off this sheet from the new part until immediately before it is mounted in the OP Block Assembly. 1.4.2 How to remove 1. Remove the solder (SD1) from the 16 soldered points on the CCD Board Assembly and take the assembly out. 2. Remove the two screws (1, 2) and take out the CCD Base Assembly. Note 4a: When removing the CCD Base Assembly, be careful not to take out the CCD image sensor together with the spacer rubbers attached to it. Note 4b: The CCD image sensor should not be replaced as a single part but 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 listed below. Before replacement of these parts, remove the bracket (OP assyembly) as required. Take special care not to disconnect any of the FPC wires or cause any damage due to soldering (excessive heating). 1. Focusing motor 2. Zoom motor 3. Iris motor unit Note 4c: When replacing the focusing motor or the zoom motor, solder the FPC at a space of about 1 mm above the terminal pin. When assembling, make sure that the slide section is positioned correctly. Note 4d: The iris motor unit includes the FPC Assembly, switch and two sensors. Note 4e: Be careful not to damage the switch.

10 (S 4 b)

CCD BLUE side OP side 11 THIN (S 4 b) THICK

1 (SD 1 ) (S 4 a)

2 (S 4 a)

CCD BORD ASSY BRAKET (OP) ASSY NOTE 4 b BASE ASSY NOTE 4 a NOTE 4 a SPACER RUBBER OPTICAL LPF 8 (S 4 d) NOTE 4 c ZOOM MOTOR 6 (S 4 c) FOCUS MOTOR NOTE 4 c

3 4 (S 4 c) (S 4 c)

5 9 7 (S 4 c) (S 4 c) (S 4 d)

NOTE 4 c/ 4 d/ 4 e IRIS MOTOR UNIT

: 0.118 Nm (1.2kgfcm) : 0.147 Nm (1.5kgfcm) Fig. 1-4-1

1-8

1.5 7 E.VF(COLOR) 1.5.1. Disassembly/Assembly of the 7 E.VF(COLOR) 1. Remove the two screws (1 and 2) and 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 UPPER CASE ASSY. 6. Remove the LCD UNIT from the BOTTOM CASE ASSY. Note7b : Refer to the parts list for detail of the parts. 7. Remove the screw (12) and then remove the HOLD ASSY (for lens), LINK (for lens), wave washer, LEVER (for lens).

UPPER CASE ASSY

EYE CUP

3 (S 7 b) NOTE 7 a FPC ASSY 7 (S 7 d) 4 (S 7 b) NOTE 7 b LCD UNIT HOLD ASSY (for lens) 1 (S 7 a)

6 (S 7 c) 5 (S 7 c)

LINK (for lens) Wave washer

2 (S 7 a)

BOTTOM CASE ASSY

10 (S 7 e) BRACKET (VF) ASSY 9 (S 7 e) 12 (S 7 e)

11 (S 7 e) LEVER (for lens)

8 (S 7 e)

: 0.059 Nm (0.6kgfcm)

Fig. 1-5-1

1-9

1.6 DISASSEMBLY/ASSEMBLY OF THE @ MONITOR ASSEMBLY 1.6.1 @ Monitor Assembly and Hinge Assembly Note: Before proceeding to the work, separate the Monitor Assembly from the Upper Case Assembly as required. 1. Remove the four screws (1 to 4), disengage the four hooks ([email protected] to [email protected]) in order, and take out the Monitor Cover Assembly. 2. Unlock the connector ( @a ) and, while lifting the Hinge Assembly, unplug and take out the FPC. 3. Remove the screw (5) and take out the bracket (MONITOR CASE). 4. Unplug the FPC from the connector ( @b ) and take out the Monitor Board Assembly and the backlight. 5. Remove the LCD module by disengaging the five hooks ([email protected] to [email protected]). 6. Remove the two screws (6, 7) and take out the hinge covers (U, L) by disengaging the four hooks ([email protected], [email protected]) at both sides of each of the hinge covers. 7. Remove the FPC Assembly from the Hinge Assembly.

Note @a: Be careful not to damage the FPC or the connector when removing the Monitor Cover Assembly. Note @b: Be careful not to damage the parts when removing 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 removed when disassembling the backlight as a single part. Note @e: Take care when handling the FPC. Note @f: Be careful not to lose the magnets and attach them in the correct orientation. Note @g: When mounting the FPC Assembly, wrap it around the Hinge Assembly by 3-1/2 turns.

(L 12 d) NOTE 12 e,g FPC ASSY a 1 (S 12 a) HINGE ASSY (L 12 a)

NOTE 12 a MONITOR COVER ASSY



2 (S 12 a)



(L 12 b)

(L 12 c)

4 (S 12 b)

3 (S 12 b)

CN 12 a CN 12 b

MONITOR BOARD ASSY

HINGE COVER (L) 6 (S 12 d)

NOTE 12 d BACK LIGHT

7 (S 12 d)

NOTE 12 f
NOTE 12 c,e FPC ASSY NOTE 12 b HINGE ASSY

LCD MODULE

MARKING MAGNETS NOTE 12 f MONITOR CASE ASSY (L 12 k) (L 12 l) (L 12 h) HINGE COVER (U) (L 12 j) (L 12 g) 5 (S 12 c)

NOTE 12 d
WIRE

BRACKET (MONI CASE)

: 0.118 Nm (1.2kgfcm)

(L 12 e) (L 12 f)

Fig. 1-6-1 1-10

1.7 MANUAL EJECTION OF THE CASSETTE TAPE Note: The following procedure describes a simplified method of ejecting the cassette tape in case it is not possible to eject it, due to an electrical failure. 4. In order to change the mechanism mode at the unloading end apply 3 V, DC to the electrode on the top surface 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 Deck Assembly. 6. Peel off the PVC tape and take out the cassette tape from the cassette housing. Note: Make sure that grease or a similar substance is not attached to the surface of the tape. Similarly, also make sure that grease or a similar substance is not attached on the Mechanism Assembly.

Be careful not to damage any of the parts or the tape when performing repairs or maintenance work.
1. Remove the Power Unit (battery, DC code, etc.) from the main unit. 2. Open the cassette cover. 3. Attach a piece of PVC tape at the front of the cassette housing. Note: This helps prevent the tape from being damaged when the Cassette Housing Assembly is moved upward at the unloading end.

(DC3V)

REEL DISK ASSY (SUP) PVC TAPE

Fig. 1-7-1

1-11

1.8 EMERGENCY DISPLAY Whenever some abnormal signal is input to the syscon CPU, 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 alternately appear over and over. In an emergency mode, all operations except turning on/ off the POWER switch are ineffectual. Example (in case of the error number E01):
E01 UNIT IN SAFEGUARD MODE E01 REMOVE AND REATTACH BATTERY

LCD display E01

Emergency mode LOADING

Details In the case the encoder position is not shifted to the next point though the loading motor has rotated in the loading direction for 4 seconds or more. This error is defined as [E01].

Possible cause 1. The mechanism is locked during mode shift. 2. The mechanism is locked at the mechanism loading end, because the encoder position is skipped during mechanism mode shift. 3. No power is supplied to the loading MDA. 1. The mechanism is locked during mode shift. 2. The mechanism is locked at the mechanism loading end, because the encoder position is skipped during mechanism mode shift. 1. The idler gear does not engage with the reel disk well. 2. Though the idler gear and reel disk are engaged with each other, the tape is not wound because of overload 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 normal status. 1. The drum cannot be started or drum rotation is stopped because tape transport load is too high. 1) Tape tension is extremely high. 2) The tape is damaged or soiled with grease, etc. 2. The DRUM FG signal is not received by the syscon CPU. 1) Disconnection in the middle of the signal line. 2) Failure of the DRUM FG pulse generator (hall element). 3. No drum control voltage is supplied to the MDA. 4. No power is supplied to the DRUM MDA. 1. The CAPSTAN FG signal is not received by the syscon CPU. 1) Disconnection in the middle of the signal line. 2) Failure of the CAPSTAN FG pulse generator (MR element). 2. No capstan control voltage is supplied to the MDA. 3. No power is supplied to the CAPSTAN MDA. 4. The capstan cannot be started or capstan rotation is stopped because tape transport load is too high. 1) Tape tension is extremely high. (Mechanical locking) 2) The tape is damaged or soiled with grease, etc. (Tape tangling occurs, etc.)

E02

UNLOADING

In the case the encoder position is not shifted to the next point though the loading motor has rotated in the unloading direction for 4 seconds or more. This error is defined as [E02]. In the case no REEL FG is produced for 4 seconds or more in the capstan rotation mode after 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 is detected in the SLOW/STILL mode.

E03

TU & SUP REEL FG

E04

DRUM FG

In the case there is no DRUM FG input in the drum rotation mode for 4 seconds or more. This error is defined as [E04], and the mechanism mode is shifted to STOP with the pinch roller set off.

E05 E06

CAPSTAN FG

In the case no CAPSTAN FG is produced in the capstan rotation mode for 2 seconds or more. This error is defined as [E06], and the mechanism mode is shifted to STOP with the pinch roller set off. However, no CAPSTAN EMG is detected in the STILL/FF/REW mode.

(DVC_03) Table 1-8-1

1-12

1 2
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Fig. 1-3-2c 22 23 2

1

9 9 9 9 9 9
Fig. 1-3-2a Fig. 1-3-2b I Fig. 1-3-1

1.9 SERVICE NOTE

Symbol No. Removing order of screw Place to stick screw Reference drawing Screw tightening torque

3 4 5 6
36 37 38 Fig. 1-3-6 I 39 Fig. 1-3-5 30 31 32 33 34 35 25 26 27 28 29

7
40 41



24

9 9 9 9 9
Fig. 1-3-3 Fig. 1-3-4 I

9
Fig. 1-3-7

Symbol No. Removing order of screw Place to stick screw Reference drawing Screw tightening torque



9

8 9 0 / !
47 48 49 50 51 52 53 54 Fig. 1-3-10 I II 44 45 46 Fig. 1-3-9 I 43

42

9 9
Fig. 1-3-8

Symbol No. Removing order of screw Place to stick screw Reference drawing Screw tightening torque

4 OP BLOCK ASSY
2 3 4 5 6 7 8 9 11 10 Fig. 1-4-1 III VI

Removing order of screw Place to stick screw Reference drawing Screw tightening torque

1

7 E. VF ASSY
2 3 4 5 6 7 8 9 10 11 12 1 2

@ MONITOR ASSY
3 4 5 6 7

1

9 9 9 9
I Fig. 1-5-1 V

9
V III

9
Fig. 1-6-1 I

Symbol No. Removing order of screw Place to stick screw Reference drawing Screw tightening torque

< NOTE > 1) 2) I IV

9 ; Don't reuse the screw, because screw lock bond was applied to them.
Pay careful attention to tightening torque for each screw. : 0.078Nm (0.8kgfcm) : 0.147Nm (1.5kgfcm) II V : 0.069Nm (0.7kgfcm) : 0.059Nm (0.6kgfcm) III : 0.118Nm (1.2kgfcm)

1-13

Table 1-9-1

SECTION 2 MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR 2.1.1 Precautions 1. When fastening parts, pay careful attention to the tightening torque of each screw. Unless otherwise specified, tighten a screw with the torque of 0.039 Nm (0.4 kgfcm). 2. Be sure to disconnect the set from the power supply before fastening and soldering parts. 3. When disconnecting/connecting wires, be careful not to get them and their connectors damaged. (Refer to the Section 1.) 4. When replacing parts, be very careful neither to damage other parts nor to fit wrong parts by mistake. 5. In the following work, use the patch cords as required. For details of the patch cords, see the "4.1 BOARD INTERCONNECTIONS" (SECTION 4, CHART AND DIAGRAM). 6. Some mechanism parts may be added to or deleted from the parts list depending on a particular product modification. Please refer to the "SECTION 5, PARTS LIST" for details of the parts available. (3) The symbol (T or B)appearing in this column 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 working points. P W S = = = = Spring Washer Screw Lock (L),soldering (SD),shield,connector (CN), etc. Remove ((W1)=Washer W1. Remove the solder at (SD1)=Point SD1. Disconnect =Connector .

Example

(6) Numbers in this column represent the numbers of notes in the text.For example, "1" means "Note 1". (For parts that need phase adjustment after reassembling, refer to "2.6 MECHANISM ADJUSTMENTS".) (7) This column indicates required after-disassembling/-reassembling work such as phase adjustment or mechanism adjustment.

2.1.2 Notes on procedure for disassemby/assembly The disassembling procedure table (Table 2-4-1 on page 2-5,a part of the table is shown below for reference)shows the procedure to disassemble/reassemble mechanism parts. Carefully read the following explanation before starting actual disassembling/reassembling work. The item numbers (circled numbers)in the following explanation correspond to those appearing under respective columns of the 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.

NO. 1 2 3 4 5 6

PART NAME CASSETTE HOUSING ASSY UPPER BASE ASSY DRUM ASSY REEL DISK ASSY(SUP) REEL DISK ASSY(TU) REEL COVER ASSY T T T T T T

FIG. Fig.2-4-3 Fig.2-4-4

POINT 3(S1),(L1a)-(L1e) (S2),(L2a),(L2b) (S3a),2(S3b) (W4) (W5) 2(W6),(S6a),2(S6b)

NOTE

REMARKS

NOTE1a,b,c,d ADJUSTMENT NOTE2 NOTE3a,b NOTE4a NOTE5 NOTE6 ADJUSTMENT

Fig.2-4-5

(1)

(2)

(3)

(4)

(5)

(6)

(7)

2-1

2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT 2.2.1 Tools required for adjustments
1 Torque driver YTU94088 2 Bit YTU94088-003

1. Torque driver 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.

3

Tweezers P-895

4

Chip IC replacement jig PTS40844-2

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. Guide driver (Hexagonal) To be used to turn the guide roller to adjustment of the linarity of playback envelope.

5

Guide driver (Hexagonal) D-770-1.27

6

Adjustment driver YTU94028

6. Adjustment driver To be used for adjustment. 7. Slit washer installation jig To be used to install slit washers. 8. Service support system To be used for adjustment with a personal computer.

7

Slit washer installation jig YTU94121A

8

Service support system YTU94057-55

9. Jig connector cable Connected to CN107 of the main board and used for electrical adjustment, etc. 10. Extension connector Connect this extension connector to the connector of the jig connector cable for extending the cable connector. Note: Removing the cover (for jig), use this extension connector double for connecting the jig connector cable.

9

Jig connector cable YTU93106B

10

Extension connector YTU94145C-30

11. Communication cable Connect the Communication cable between the PC cable and Jig connector cable when performing a PC adjustment. 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 interchangeability of the mechanism. 14. Cassette torque meter This is used to cheek the back tension and play torque during mechanism adjustment. Note: When using the cassette torque meter, install the service support system software in advance. LED : Forced to ON EJECT SW : OFF (Cancel) The above setting is required to prevent any tape damage that may occur because the cassette torque meter cannot detect the leading/trailing sections of the tape. 15. Cleaning cloth Recommended cleaning cloth to wipe down the video heads, mechanism (tape transport system), optical lens surface.

11

Communication cable YTU93107A

12

PC cable QAM0099-002

13

Alignment tape MC-1

14

Cassette torque meter YTU94151A

15

Cleaning cloth KSMM-01

Table 2-2-1 2-2

2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2.3.1 General statement The mechanism should generally be disassembled/assembled 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.

2.3.2 Explanation of mechanism mode The mechanism mode of this model is classified into five modes as shown in Table 2-3-1. Each mechanism mode can be distinguished from others by the relative position of " ", "Q", "Q" " " marks on the sub cam gear to the inner or outer protrusion on the main deck. Refer to Fig. 2-3-3 to 2-3-8 below.



DC3V

TOP VIEW
Fig. 2-3-3

BOTTOM VIEW



LOADING MOTOR

Fig. 2-3-4



Fig. 2-3-5



Fig. 2-3-1 Fig. 2-3-6

C IN mode


Fig. 2-3-7



Back side of deck
Fig. 2-3-2 2-3 Fig. 2-3-8

2.3.3 Mechanism timing chart

MODE
EJECT CAS. IN

RELEASE

SHORT FWD

TU. P. B START

SLIDE START

TU. P. B END

SLIDE END

STOP

REV

PLAY

PARTS
MAIN CAM SUB CAM -12.40 -16.97 0 0 (22.44) (30.71) 58.71 80.34 (69.53) (95.14) (80.5) (110.06) (150.58) (153.5) (206.06) (210.05) 177.79 243.29 212.77 291.16 243.94 333.82

-15
-13-3

0
3

(27.14)

71
68 74

(84.08)

(97.35)

(182.10) (185.63)

215
212 218

257.3
254.3 260.3

295
292 310

ROTARY ENCODER

a b c ON

EJECT LEVER OFF L. END TENSION ARM LOCK UL L. END PAD ARM OFF UL ON TU ARM OFF LOAD SLIDE DECK UL L. END SUP. L. ARM LOAD UL L. END TU. L. ARM LOAD UL PRESS P. ROLLER LOAD UL ON BRAKE (S) OFF ON BRAKE (T) OFF R

CTL PLATE

C

L ON RELEASE LEVER OFF

Table 2-3-1

2-4

2.4 DISASSEMBLING PROCEDURE TABLE MARK: NO. 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 31 32 33 34 35 / 36 36 37 After assembly, perform adjustments. PART NAME CASSETTE HOUSING ASSY UPPER BASE ASSY DRUM ASSY REEL DISK ASSY(SUP) REEL DISK ASSY(TU) REEL COVER ASSY TENSION ARM ASSY SLANT POLE ARM ASSY TU ARM ASSY SWING ARM ASSY SLIDE DECK ASSY PAD ARM ASSY SUP BRAKE ASSY TU BRAKE ASSY TENSION CTL LEVER ASSY CENTER GEAR PINCH ROLLER ARM F. ASSY TENSION CTL PLATE ASSY BRAKE CTL LEVER ASSY MOTOR BRACKET ASSY GUIDE RAIL ASSY SLIDE LEVER 2 ASSY LOADING PLATE ASSY MODE GEAR EJECT LEVER BASE R ASSY ROTARY ENCODER GEAR COVER ASSY MAIN CAM ASSY SLIDE ARM ASSY CONNECT GEAR 2 SUB CAM ASSY CONTROL ARM ASSY REEL GEAR 1 DRUM BASE ASSY/ CAPSTAN MOTOR CAPSTAN MOTOR MAIN DECK ASSY T T T T T T T T T T T Fig.2-4-7a T Fig.2-4-7b T T T T T T T T T T T T T T Fig.2-4-10 T T T T Fig.2-4-11 T T T T T Fig.2-4-12 T T Table 2-4-1 3(S) (S) -- (STM) -- -- (Wfi) (Sfla),(Sflb),2(Lfl) 2(S) (Sa),2(Sb) -- -- -- (W<) -- Fig.2-4-9 (W&) -- -- 3(S)),(L)a),2(L)b) Fig.2-4-8 (S0) 2(S!a),(S!b),2(L!a), 2(L!b),(L!c) ([email protected]),([email protected]),([email protected]) (P#),(L#),(S#) (P$),(L$),(W$) (W%) -- Fig.2-4-6 (P8) -- Fig.2-4-5 FIG. Fig.2-4-3 Fig.2-4-4 POINT 3(S1),(L1a)-(L1e) (S2),(L2a),(L2b) (S3a),2(S3b) (W4) (W5) 2(W6),2(S6a),(S6b) -- NOTE REMARKS

NOTE1a,b,c,d ADJUSTMENT NOTE2 NOTE3a,b NOTE4 NOTE5 NOTE6 NOTE7 NOTE8 NOTE9 NOTE0 NOTE!a,b [email protected] NOTE# NOTE$ NOTE% NOTE^ NOTE& NOTE* NOTE( NOTE) NOTE NOTE< NOTE> NOTEfi NOTEfl NOTE -- NOTE NOTE, NOTE NOTETM NOTE NOTE NOTEa,b NOTE -- ADJUSTMENT ADJUSTMENT PHASE ADJUSTMENT ADJUSTMENT PHASE ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT PHASE ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT / ADJUSTMENT ADJUSTMENT ADJUSTMENT / ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT / ADJUSTMENT / ADJUSTMENT ADJUSTMENT ADJUSTMENT

2(W/),(S/),2(L/a),(L/b) NOTE/ --

2-5

< TOP VIEW >

24

27

2

3

21

36

35 17

20 23 18 8 7 22 12 4 29 19 30 15 13 16 28 31 5 14 11
Fig. 2-4-1

26 34 9 10 33 26 6 37 25 32

< BOTTOM VIEW >

34

36

3

22

27 20 26 30 18 32 25 19 29

31

16

6

37

11

30

Fig. 2-4-2

2-6

2.4.1 Disassembly/assembly 1. 1 CASSETTE HOUSING ASSY
NOTE 1 a

NOTE1a: Be careful not to damage any of the parts during work.
NOTE 1 b

1 2 (S 1 ) NOTE 1 d

NOTE1b: Special care is required in mounting.

1 (S 1 )

NOTE1c: When mounting, the CASSETTE HOUSING ASSY should be attached in the Eject status. Pay heed to the positions of the LOCK LEVER and EJECT LEVER during mounting.

NOTE 1 c

NOTE 1 b (L 1 d)

LOCK LEVER NOTE 1 c (L 1 b) NOTE 1 d

EJECT LEVER

LOCK LEVER
(L 1 c)

NOTE1d: When mounting, be sure to locate the FPC in the gap.

NOTE 1 d

(L 1 e)

(L 1 a) 3 (S 1 )

Fig. 2-4-3 2. 2 UPPER BASE ASSY 3 DRUM ASSY
NOTE 2

NOTE2: When mounting, be sure to insert the FPC reinforcing sheet.

4 (S 2 ) 2 NOTE 2 (L 2 b) NOTE 3 a 3

NOTE3a: Be mindful of scratches or damage during work. NOTE3b: Be careful not to attach screws incorrectly.

(L 2 a) NOTE 2

NOTE 3 b

5 7 6

6 (S 3 b) 7 (S 3 b)

5 (S 3 a) NOTE 3 b

Fig. 2-4-4 2-7

3. 4 REEL DISK ASSY(SUP) 5 REEL DISK ASSY(TU) 6 REEL COVER ASSY NOTE4: Be careful not to attach the REEL DISK wrongly. The Supply side can be identified by the white color at the center.
NOTE 4 , 5

(W 4 ) NOTE 4 4 8 (S 6 a) (W 6 ) (W 6 )
WHITE BLACK

(W 5 ) NOTE 5 5 10 (S 6 b)

NOTE5: Be careful not to attach the REEL DISK wrongly. The Take-up side can be identified by the black color at the center.

REEL DISK ASSY

9 (S 6 a)

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 NOTE 6 ASSY by aligning the 3 5 2,6 positions. 4. Check that the parts below them are located in the correct 4 positions. 5. Tighten the 2 screws. 6. Tighten the screw. 7. Attach the 2 SLIT 1, 7 WASHER parts. 4. 7 TENSION ARM ASSY 8 SLANT POLE ARM ASSY 9 TU ARM ASSY 0 SWING ARM ASSY NOTE7: When detaching, remove the spring of the @ PAD ARM ASSY in advance. Pay attention to the attachment position. NOTE8: When mounting the SLANT POLE ARM ASSY, hook the spring onto the lug as in diagram A, and fit the combination onto the SLIDE DECK ASSY. After fitting, hook the spring onto the lug of the SLIDE DECK ASSY as in diagram B. Be careful not to lose the spring.

SUP

TU

6 NOTE 6

Fig. 2-4-5

NOTE 7

8 NOTE 7 7 (P 8 ) 11 NOTE 8 (S 10 ) NOTE 10 10 NOTE 9 9

SPRING
NOTE 8

A

SPRING

B

NOTE 7

NOTE9: Pay attention to the mounting position.

NOTE 9

NOTE0: When detaching, remove the screw then remove the SWING ARM ASSY by pulling it up and turning it.

NOTE 10

Fig. 2-4-6

2-8

5. ! SLIDE DECK ASSY NOTE!a: Each of the parts on the SLIDE DECK ASSY can be replaced separately. When detaching the assembly, if there is no 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 LEVER ASSY. When mounting, position the CONTROL PLATE on the left side. Pay attention to the position of the SLIDE GUIDE PLATE during mounting.
NOTE 11 b

14 (S 11 b) (L 11 c) (L 11 b) 13 (S 11 a) 12 (S 11 a)

NOTE 11 a 11 (L 11 a) NOTE 11 b

Fig. 2-4-7a 6. @ PAD ARM ASSY # SUP BRAKE ASSY $ TU BRAKE ASSY

[email protected]: The spring may have already been disengaged when the 8 SLANT POLE ARM ASSY was removed. NOTES$: When mounting, pay attention to the correct positioning. Mount the CONTROL PLATE by moving it fully toward the left side.
NOTE 12 13 14
SPRING

(W 12 )

12

NOTE 12 (P 12 )

15 (S 13 ) NOTE 13 13 (P 13 ) (W 14 ) (P 14 ) (L 12 ) 14 NOTE 14 (L 14 ) (L 13 )

12

CONTROL PLATE

13

14

Fig. 2-4-7b 2-9

7. % TENSION CTL LEVER ASSY ^ CENTER GEAR & PINCH ROLLER ARM F. ASSY * TENSION CTL PLATE ASSY ( BRAKE CTL LEVER ASSY NOTES%/^: When mounting, pay attention to the correct positioning.
NOTE 15
NOTE 16

NOTE 17 17 NOTE 18 18 (W 15 )

(W 17 )

(TOP)

(BOTTOM)

16 NOTE 16

NOTE&: Take care against grease attachment during work.
NOTE 17

NOTES*/(: When mounting, pay attention to the correct positioning.
NOTE 18 NOTE 19

NOTE 19 19

15 NOTE 15

Fig. 2-4-8 8. ) MOTOR BRACKET ASSY / GUIDE RAIL ASSY SLIDE LEVER 2 ASSY < LOADING PLATE ASSY > MODE GEAR fi EJECT LEVER NOTE): When mounting, pay attention to the positioning of the sliding parts.
NOTE 21

NOTE 20

17 (S 20 ) NOTE 20 18 20 (S 20 )

NOTE 21 (W 21 ) 21 (W 21 ) 16 (S 20 )

19 (S 21 ) (L 21 a)

NOTE/: When mounting, take care that no part is allowed to float or rattle.

NOTE 23 23 (W 23 ) (L 20 a) (L 20 b)

22

NOTE 22

(L 21 b)

NOTE 24 24

(W 25 )

NOTES//fi: When mounting, pay attention to the correct positioning.
NOTE 22 NOTE 23

NOTE 24

25 NOTE 25

NOTE 25

Fig. 2-4-9 2-10

9. fl BASE R ASSY ROTARY ENCODER GEAR COVER ASSY MAIN CAM ASSY NOTEfl: When mounting, fold the sliding part to the inner side.
NOTE 26

NOTE 27 27

22 (S 27 ) 23 (S 27 ) 24 (S 28 a)

25 (S 28 b) 26

(S 28 b)
NOTE: When mounting, pay attention to the correct positioning and the FPC layout.

20 (S 26 b) 21 (S 26 a)

NOTE 27

28 29 NOTE 29 26 NOTE 26

NOTE: When mounting, pay attention to the correct positioning.

NOTE 29

(L 26 )

Fig. 2-4-10 10. , SLIDE ARM ASSY CONNECT GEAR 2 TM SUB CAM ASSY CONTROL ARM ASSY REEL GEAR 1 NOTE,: When mounting, pay attention to the correct positioning and the FPC layout.
NOTE 30

NOTE 30 30

27 (S 32 ) NOTE 32 32 NOTE 31 31 NOTE 34 34

NOTE: When mounting, pay attention to the position of the front and back.

NOTE 31

(TOP) (BOTTOM)

33 NOTE 33

NOTESTM//: When mounting, pay attention to the correct positioning and the FPC layout.
NOTE 32 / 33 NOTE 34

32

33

Fig. 2-4-11 2-11

11. DRUM BASE ASSY CAPSTAN MOTOR MAIN DECK ASSY 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.
NOTE 35 b

29 (S 35 ) 28 (S 35 )

31 (S 36 ) 30 (S 35 )

35

NG OK NG

36 NOTE 36

NOTE 35 a

37

Fig. 2-4-12

(Z27 Ver.4_N)

2-12

2.4.2 List of procedures for disassembly

2 (S 1 )

1

1 (W 4 ) 4 8 (S 6 a) (W 6 ) (W 6 ) 14 (S 11 b) 6 9 7 8 11 (S 10 ) 10 (W 5 ) 5 10 (S 6 b) (S 1 )

4 (S 2 )

2

9 (S 6 a) 29 (S 35 ) 28 (S 35 )

3

31 (S 36 )

30 (S 35 )

(P 8 ) (W 12 ) 15 (S 13 ) 13 (P 13 ) 18 (S 20 ) 14 17 (S 20 ) 20 18 12 (P 12 ) (W 14 ) (P 14 ) (W 23 )

13 (S 11 a)

12 (S 11 a)

35 7 (S 3 b) 5 (S 3 a) 6 (S 3 b) 36 (W 17 ) 17

11 23 3 (S 1 ) 22 (W 21 )

22 (S 27 ) 16 (S 20 ) 27 30

23 (S 27 )

(W 21 ) 19 (S 21 )

34 24

21

(W 15 )

25 (S 28 b)

24 26 (S 28 a) 16 (S 28 b) 19

21 (S 26 b) (W 25 ) 25 20 (S 26 a)

15 28

27 (S 32 ) 37 26 32

29

31 33

Fig. 2-4-13

2-13

2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE

24 MODE GEAR
Align the MODE GEAR with the Main Deck Assembly hole. Note: The MODE GEAR may be displaced during the mechanism operation, however it can be checked from the rear and realigned during manual assembly.

27 ROTARY ENCODER
Mount the ROTARY ENCODER by aligning its mark ( and the mark ( ) of the Main Deck Assembly. Note: Be careful when handling the FPC during mounting. )

34 REEL GEAR 1
Align the REEL GEAR 1 with the Main Deck Assembly hole. Note: The REEL GEAR 1 may be displaced during mechanism operation, however this can be checked from the rear and realigned during manual assembly.

29 MAIN CAM ASSY/ 30 SLIDE ARM ASSY
When mounting the SLIDE ARM ASSY align it with the Main Deck Assembly and MAIN CAM ASSY holes. Note: During the mounting procedure, make sure that the 32 . SUB CAM ASSY is in the correct mounting position.

32 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 Nm (0.4 kgfcm) Note: When mounting it, make sure that the 29 MAIN CAM ASSY is in the correct mounting position.

Fig. 2-5-1

2-14

2.6 MECHANISM ADJUSTMENTS 2.6.1 Adjustment of the slide guide plate Use Fig. 2-6-1 as the reference unless otherwise specified. 1. Set the PLAY mode. See Fig. 2-3-8. 2. Loosen the screws ( A , B ). 3. With the Main Deck and Slide Deck Assemblies pushed 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 utilization of the rebounding force of the springs. The tightening torque should be 0.069 Nm (0.7 kgfcm). 4. Check the operation. Repeat unloading and loading several times and make sure that these operations can be performed smoothly without producing rattles.

3

3

3

2, 3 SCREW A 2,3 SCREW B 3

STUD (SHAFT) 3

Fig. 2-6-1

2-15

2.6.2 Adjustment of the Tension Arm and Pad Arm Assemblies 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 Nm (0.7 kgfcm). 4. Check the operation. Repeat unloading and loading several times and make sure that the Tension Arm Assembly is located within the normal range. Note : With the above checking method, a Torque Meter is not used. When a Torque meter is used, the following are the reference values: Back Tension : 2.0 to 6.0 gcm Play Torque : 8.3 to 12.5 gcm

2.6.3 Adjustment of the Slide Lever 2 Use Fig. 2-6-3 as the reference unless otherwise specified. 1. Set the C IN mode. See Fig. 2-3-4. 2. Loosen the screw A . 3. Set the Main Deck and Slide Deck Assemblies apart so that they do not rattle, then tighten the screw A by screwing it fully toward the Drum Assembly. The tightening torque should be 0.069 Nm (0.7 kgfcm). 4. Check the operation. Repeat unloading and loading several times and make sure that these operations can be performed smoothly without producing rattles.

3

2, 3 SCREW A

TENSIOM ARM ASSY

SCREW B

3

Fig. 2-6-3
2, 3 SCREW A

Fig. 2-6-2

2-16

2.7 SERVICE NOTE Use the following chart to manage mechanism parts that are removed for disassembling the mechanism.

Fig.

1

CASSETTE HOUSING ASSY

Fig.

2

UPPER BASE ASSY

2 I 4 I 3

2 I 4 I 4

Fig.

3

DRUM ASSY

Fig.

4

REEL DISK ASSY(SUP)

6

REEL COVER ASSY

2 I 4 I 4

2 I 4 I 5

5

REEL DISK ASSY(TU)

Fig.

7

TENSION ARM ASSY

8

SLANT POLE ARM ASSY

9

TU ARM ASSY

10

SWING ARM ASSY

2 I 4 I 6

Fig.

11

SLIDE DECK ASSY

Fig.

12

PAD ARM ASSY

13

SUP BRAKE ASSY

14

TU BRAKE ASSY

2 I 4 I 7 a

2 I 4 I 7 b

Table 2-7-1a 2-17

Fig.

15

TENSION CTL LEVER ASSY

16

CENTER GEAR

17

PINCH ROLLER ARM F. ASSY

18

2 I 4 I 8

TENSION CTL PLATE ASSY

19

BRAKE CTL LEVER ASSY

Fig.

20

MOTOR BRACKET ASSY

21

GUIDE RAIL ASSY

22

SLIDE LEVER 2 ASSY

23

LOADING PLATE ASSY

2 I 4 I 9

24

MODE GEAR

25

EJECT LEVER

Fig.

26

BASE R ASSY

27

ROTARY ENCODER

28

GEAR COVER ASSY

29

MAIN CAM ASSY

2 I 4 I 10

Fig.

30

SLIDE ARM ASSY

31

CONNECT GEAR 2

32

SUB CAM ASSY

33

CONTROL ARM ASSY

34

REEL GEAR 1

2 I 4 I 11

Fig.

35

DRUM BASE ASSY

36

CAPSTAN MOTOR

37

MAIN DECK ASSY

2 I 4 I 12

Table 2-7-1b 2-18

2.8 JIG CONNECTOR CABLE CONNECTION Remove one screw (1) first and the cover (JIG) next.

COMMUNICATION CABLE
RED

JIG CONNECTOR
to 8 pin ( JLIP_RX ) to 9 pin ( JLIP_TX ) to 5 or 23 pin ( GND )

WHITE BLACK

JACK BOX

COVER (JIG)
1

CN107

JIG CONNECTOR CABLE

EXTENSION CONNECTOR NOTE: Removing the cover (for jig), use this extension connector double for connecting the jig connector cable. TO PC CABLE

COMMUNICATION CABLE

Fig. 2-8-1

MAIN BOARD ASSY CN107 16 1 17 2 18 3 19 4 20 5 21 6 22 7 23 8 24 9 25 10 26 11 27 12 28 13 29 14 30 15 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_PLL VPPC IF_TX RST

JIG CONNECTOR CABLE 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 NC NC NC NC GND NC NC JLIP_RX JLIP_TX HID1 NC MAIN_VCO NC NC NC NC NC NC NC NC NC TX2 GND NC NC ENV_OUT NC NC FS_PLL NC

Fig. 2-8-2 2-19

2.8.1 Tape pattern check (1) Play back the compatibility adjustment tape. (2) While triggering the MAIN CN107-10PIN (HID1), observe the waveform of CN107-26PIN (ENV_OUT). (3) Confirm that the waveform is free from remarkable level-down, and entirely parallel and straight. Moreover, perform the following adjustment as required. (4) In case any level-down is observed on the left hand side, straighten the level by turning the guide roller of the pole base assembly (supply). In case any level-down is observed on the right hand side, however, straighten the level by turning the guide roller of the pole base assembly (Take-up). (5) After adjustment, try the unloading motion once, and confirm that the waveform is flat (straight) when 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. Note: When an adjustment is performed with the lower case cover attached, first slide the two covers (cassette and cassette rear) open and then perform the compatibility adjustment. Be sure not to damage the covers when sliding them open to make an adjustment because they must be re-positioned after completing the adjustment.
CN107 (ENV_OUT)

CN107 (HID1)

Fig. 2-8-3

Flatten the waveform. Misalignment of guide roller height on the supply side Misalignment of guide roller height on the take-up side

Fig. 2-8-4

NOTE: The two covers serve as the covers for the service adjustment access holes. GUIDE ROLLER (SUP) ASSY GUIDE ROLLER (TU) ASSY COVER (Cassette) COVER (Cassette rear) JIG CONNECTOR CABLE Refer to page 2-19.
MAIN CN107 26PIN (ENV_OUT) 10PIN (HID1) JIG CONN. BOARD JIG CONN-26PIN (ENV_OUT) JIG CONN-10PIN (HID1)

Fig. 2-8-5 2-20

SECTION 3 ELECTRICAL ADJUSTMENT
3.1 PRECAUTION 1. Precaution Both the camera and deck sections of this model needs a personal computer for adjustment except simple adjustment with potentiometers. If some of the following parts is replaced for repair or other reason, the repaired set must be adjusted with a personal computer. OP block E2PROM (IC1003 of MAIN board) MONITOR E2PROM (IC7302 of MONITOR board) In the event of malfunction with electrical circuits, troubleshooting with the aid of proper test instruments most be done first, and then commence necessary repair, replacement and adjustment, etc. 1. In case of wiring to chip test points for measurement, use IC clips, etc. to avoid any stress. 2. In the following work, use the patch cords as required. For details of the patch cords, see the "4.1 BOARD INTERCONNECTIONS" (SECTION 4, CHART AND DIAGRAM). 3. Shortcircuit between operation un it and DECK chassis.
Alignment tape MC-1 Service support system YTU94057-55

5

Jig connector cable YTU93106B

6

Extension connector YTU94145C-30

7

Communication cable

YTU93107A

8

PC cable QAM0099-002

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 threshold level adjuster) 6. Personal computer 3. Tools required for adjustments

9

10

11

INF adjustment lens YTU92001B

12 INF adjustment lens holder YTU94087

1

Torque driver YTU94088

2

Bit YTU94088-003

13

Camera stand YTU93079

14

Light box assembly YTU93096A

3

Tweezers P-895

4

Chip IC replacement jig PTS40844-2

15

Gray scale chart YTU94133A

16

Color bar chart YTU94133C

Table 3-1-1a

Table 3-1-1b

3-1

1.

Torque driver Be sure to use to fastening the mechanism and exterior parts because those parts must strictly be controlled for tightening torque. Bit This bit is slightly longer than those set in conventional torque drivers. Tweezers To be used for removing and installing parts and wires. Chip IC r