Jvc-MC-8100-LU-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL MC-8100LU No. HM002 Dec. 2003 COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. SPECIFICATIONS Printed in Japan MC-8100LUNo. HM002 CD/DVD LIBRARY R VICTOR COMPANY OF JAPAN, LIMITED is a registered Trademark owned by VICTOR COMPANY OF JAPAN, LTD. is a registered Trademark in Japan, the U.S.

2、A., the U.K. and many other countries. R R R 100% recycled paper : 100 : 2 :Temperature : 5 C to 35 C (41 F to 95 F) (Note 1) Humidity:10 % to 80 % (no condensation) : AC120 V to 240 V : 50 Hz / 60 Hz : 1.4 A to 0.8 A (max. value), 1.1 A to 0.6 A (4 Drives are loaded) : 105 W (Reference value, 4 DVD

3、-RAM drives are loaded) : 68-pin external SCSI connector : 4 : 12 cm discs Number of stored discs Number of magazines Operating environment Rated power voltage Rated power frequency Rated current Power Consumption Interface Drive slots rack bays Media size Availabel drivesCompatible discs : DVD-RAM

4、drive DVD-RAM/R driveWrite/ReadDVD-RAM (Ver. 2.1), DVD-R (for General), CD-R, CD-RW ReadDVD-ROM, CD-ROM The relevant specifications for the drives can be found in the appropriate instruction manual. Concerning the Availability/Compatibility of the drives that are not listed, please contact your deal

5、er or nearest JVC service centre. The production of a particular drive may be discontinued without prior notice. Therefore, a replacement drive may be changed to a different model. JVC does not provide a warranty in the case of software not functioning correctly as a result of a drive being replaced

6、 or added. : Single-sided / Double-sided compatible disc carrier: MC-CF10U : Magazine set: MC-M25U (B) : 42 kg (Excluding the discs and optional equipment) Applicable options Drives Note 1 : When using 4 of the MC-R434U units together, be sure that the room temperature is between 5 C and 30 C. Carri

7、er Magazine Weight RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS SectionTitlePageSectionTitlePage Important Safety Precautions INSTRUCTIONS 1. CIRCUIT BOARD COMPATIBILITY .1-1 2. PRODUCT SPECIFIC SERVICE ITEMS 2.1REMOVAL OF MAJOR PARTS . 2-1 2.1.1REPLACEMENT OF FUSES AND BATTERIES. 2-1 2.1.2OPENING/CLOS

8、ING THE DOOR AND PANEL REMOVAL .2-2 2.1.3REMOVING THE MAGAZINE . 2-3 2.1.4REMOVING THE DRIVE . 2-4 2.1.5REMOVING THE SIDE STAY R . 2-4 2.1.6REMOVING THE CARRIER MECHANISM . 2-5 2.1.7REMOVING THE SIDE PANEL L . 2-6 2.1.8REMOVING THE SIDE PANEL R . 2-6 2.1.9REMOVING THE REAR PANEL . 2-6 2.1.10 REMOVIN

9、G THE POWER SUPPLY UNIT . 2-6 2.1.11 REMOVING THE CHASSIS PCB . 2-7 2.1.12 REMOVING THE SCSI PCB . 2-7 2.1.13 REMOVING THE MAIL SLOT . 2-8 2.1.14 REMOVING THE TOP PANEL . 2-8 2.1.15 REMOVING THE U/D MOTOR. 2-9 2.1.16HOW TO OPERATE WITH THE DOOR OPEN (FOR SERVICING) .2-9 2.2SPECIAL OPERATION MODE . 2

10、-10 2.2.1RUNNING MODES . 2-10 2.2.2ACCESS COUNTER CLEARANCE . 2-12 2.2.3MANUAL OPERATION . 2-12 2.2.4PACKING MODE . 2-14 2.2.5TRAY AUTO RETURN MODE . 2-14 2.2.6MEMORY CLEAR MODE . 2-14 2.2.7DISC/TRAY CHECK MODE . 2-15 2.2.8AUTO CHECK MODE . 2-15 2.2.9DRIVE DETECTION MODE. 2-15 2.2.10 AUTO DISC/TRAY

11、CHECK ON/OFF SETTING. 2-16 2.3SELF-DIAGNOSTIC DISPLAY. 2-16 2.3.1DISPLAYING TROUBLE HISTORY . 2-16 2.3.2DISPLAY WHEN TROUBLE OCCURS . 2-17 2.3.3ERASING THE TROUBLE HISTORY . 2-18 2.3.4ERROR CODE LIST . 2-18 2.4MAINTENANCE MODE . 2-19 2.4.1OUTLINE. 2-19 2.4.2ELECTRICAL SPECIFICATIONS. 2-19 2.4.3MAINT

12、ENANCE TYPES AND CONDITIONS. 2-19 2.4.4ACTIVATING THE MAINTENANCE MODE . 2-19 2.4.5MAINTENANCE PROGRAM . 2-19 2.5MAINTENANCE AND PERIODICAL CHECK. 2-20 2.6COUNTERMEASURES AGAINST MECHANICAL TROUBLE (FOR MC-R400U) . 2-21 2.7COUNTERMEASURES AGAINST MECHANICAL TROUBLE (FOR MC-R200U) . 2-22 3. DIAGRAMS

13、AND CIRCUIT BOARDS 3.1CD/DVD LIBRARY BLOCK DIAGRAM . 3-1 3.2CHASSIS BLOCK DIAGRAM . 3-2 3.3OVERALL WIRING DIAGRAM. 3-3 3.4CHASSIS SCHEMATIC DIAGRAM. 3-4 3.5CHASSIS CIRCUIT BOARD . 3-5 3.6SCSI SCHEMATIC DIAGRAM . 3-6 3.7SCSI CIRCUIT BOARD. 3-7 3.8CARRIER SCHEMATIC DIAGRAM . 3-8 3.9CARRIER CIRCUIT BOA

14、RD . 3-9 3.10MAIL SLOT SCHEMATIC DIAGRAM . 3-10 3.11S. MOT SCHEMATIC DIAGRAM . 3-10 3.12MAIL SLOT CIRCUIT BOARD. 3-11 3.13S. MOT CIRCUIT BOARD . 3-11 3.14LVD SCHEMATIC DIAGRAM . 3-12 3.15LVD CIRCUIT BOARD . 3-13 3.16DISPLAY SCHEMATIC DIAGRAM . 3-14 3.17DISPLAY CIRCUIT BOARD AND OTHER BOARD.3-15 3.18

15、BLOCK DIAGRAMS OF IC S. 3-16 4. EXPLODED VIEW AND PARTS LIST 4.1FINAL ASSEMBLY M1. 4-1 4.2FINAL ASSEMBLY PARTS LIST M1. 4-2 4.3CARRIER MECHANISM ASSEMBLY M2 . 4-5 4.4CARRIER MECHANISM ASSEMBLY PARTS LIST M2 . 4-6 4.5MAIL SLOT ASSEMBLY M3. 4-7 4.6MAIL SLOT ASSEMBLY PARTS LIST M3. 4-8 4.7MAGAZINE ASSE

16、MBLY M4 . 4-9 4.8MAGAZINE ASSEMBLY PARTS LIST M4 . 4-9 4.9IL BRACKET ASSEMBLY M5. 4-10 4.10IL BRACKET ASSEMBLY PARTS LIST M5. 4-10 4.11U/D MECHANISM ASSEMBLY M6 . 4-11 4.12U/D MECHANISM ASSEMBLY PARTS LIST M6 . 4-12 5. ELECTRICAL PARTS LIST 5.1CHASSIS BOARD ASSEMBLY PARTS LIST 01.5-2 5.2CONNECTOR BO

17、ARD ASSEMBLY PARTS LIST 02.5-5 5.3RS232C BOARD ASSEMBLY PARTS LIST 03 . 5-5 5.4S.MOT BOARD ASSEMBLY PARTS LIST 04 . 5-5 5.5SCSI BOARD ASSEMBLY PARTS LIST 05 . 5-6 5.6DISPLAY BOARD ASSEMBLY PARTS LIST 06. 5-7 5.7MAIL CN BOARD ASSEMBLY PARTS LIST 07 . 5-7 5.8ROT SENSOR BOARD ASSEMBLY PARTS LIST 08.5-7

18、 5.9MG SENSOR BOARD ASSEMBLY PARTS LIST 09.5-7 5.10CARRIER MEC BOARD ASSEMBLY PARTS LIST 10.5-8 5.11R CATCH BOARD ASSEMBLY PARTS LIST 11.5-8 5.12L CATCH BOARD ASSEMBLY PARTS LIST 12.5-8 5.13LOADING BOARD ASSEMBLY PARTS LIST 13.5-9 5.14TRAY LOCK BOARD ASSEMBLY PARTS LIST 14.5-9 5.15LANE2 SEN BOARD AS

19、SEMBLY PARTS LIST 15.5-9 5.16L ADD SEN BOARD ASSEMBLY PARTS LIST 16.5-9 5.17R ADD SEN BOARD ASSEMBLY PARTS LIST 17.5-9 5.18DISK SEN R BOARD ASSEMBLY PARTS LIST 18.5-9 5.19DISK SEN T BOARD ASSEMBLY PARTS LIST 19.5-10 5.20MAIL SLOT BOARD ASSEMBLY PARTS LIST 20.5-10 5.21SENSOR BOARD ASSEMBLY PARTS LIST

20、 21.5-10 5.22POSI IN BOARD ASSEMBLY PARTS LIST 22.5-10 5.23LVD BOARD ASSEMBLY PARTS LIST 23.5-11 6. PACKING 6.1PACKING ASSEMBLY M7. 6-1 6.1.2PACKING ASSEMBLY PARTS LIST M7. 6-1 RadioFans.CN 收音机爱 好者资料库 Important Safety Precautions Prior to shipment from the factory, JVC products are strictly inspecte

21、d 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. Fig.1 1.Locations requiring special caution

22、are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performing service, be sure to read and com- ply with these and other cautionary notices appearing in the operation and service manuals. 2.Parts identified by the symbol and shaded ( ) parts are cri

23、tical for safety. Replace only with specified part numbers. Note: Parts in this category also include those specified to com- ply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission. 3.Fu

24、se 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 insulati

25、ng materials for hazardous live parts. Note especially: 1) Insulation Tape3) Spacers5) Barrier 2) PVC tubing4) 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 be

26、fore soldering. Power cord 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 pertainin

27、g 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 ca

28、thode ray tube. 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 or- der to preve

29、nt 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 a

30、t a point close to the connector. Important : Do not reuse a connector (discard it). Fig.7 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 th

31、e wires to be connected. Insert the wires fully into the connector. Connector Metal sleeve 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. 1 ?Precautions during Servicing 7.Observe that w

32、ires 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. 1.25 2.0 5.5 Cri

33、mping tool 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 RadioFans.CN 收音机爱 好者资料库 ?Safety Check after Servicing Examine the area surrounding the repaired location for damage

34、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 compli- ance with safety standards. 1.Insulation resistance test Confirm the specified insulation resistance or

35、 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 betwee

36、n 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 dista

37、nce (d), (d) be- tween soldered terminals, and 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,

38、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 accessi- ble parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and fol

39、lowing table 2. 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 inl

40、et and exposed accessible parts. See figure 10 and grounding specifications. d d Chassis Power cord, primary wire Region USA one on the chassis PCB and the other on the SCSI PCB. When replacing a battery, be sure to use one having the specified parts number. For the parts number, refer to “5. EIECTR

41、ICAL PARTS LIST”. Chassis PCB : BT1 SCSI PCB: BT1 Note: Perform fuse replacements correctly. Never use a fuse other than that specified by the manufacturer (same model number or its equivalent). Note: If the battery is not replaced correctly, it could cause an explosion. Never use a battery other th

42、an one specified by the manufacturer (same model number or its equivalent). After replacement, dispose of the expired battery according to the instructions of the manufacturer. 2-1 2.1.2Opening/Closing the Door and Panel Removal Opening the Door When the power is not turned on or when electrical or

43、mechanical trouble occurs, the unit will not enter the door open mode with the above operations, and inserting the key cannot open the door. In this case, proceed in the following manner to open the door. 1. Turn the power of the main unit to OFF. 2. Insert a pin having a diameter of approx. 2 mm (or extended spike or clip, etc.) into the emergency hole to release the key lock. With this, you ca