Jvc-HRXV-1-Service-Manual 电路图 维修手册.pdf

《Jvc-HRXV-1-Service-Manual 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Jvc-HRXV-1-Service-Manual 电路图 维修手册.pdf（135页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL No.82927 June 2002 DVD PLAYER Hi-Fi VIDEO CASSETTE RECORDER SPECIFICATIONS (The specifications shown pertain specifically to the model HR-XV1EU-C.) This service manual is printed on 100% recycled paper. COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD HR-XV1EK, HR-XV1EU-C, HR-XV1EU-S, HR-X

2、V1EU-Y V14PV1 DIGITAL VIDEO GENERAL Power supply: Power consumption: Weight: Dimensions: Input Level: Output Level: Hi-Fi Frequency Response: Hi-Fi Dynamic Range: VCR section Video Head: Audio Track: Channel covevage: RF Channel Output: F.FWD/REW Time at 25C: DVD section Signal system: Applicable di

3、sc: Audio characteristics: Frequency response: S/N Ratio: Harmonic distortion: Wow and flutter: Dynamic range: Output: Pickup: ACCESSORIES: AC 230V 50Hz Operation: 22W Stand by: 5W 4.5 kg Width :430 mm Height:99 mm Depth :310.5 mm SCART-socket: Audio IN jack: 500 mV, 50 k SCART-socket: Audio OUT jac

4、k: 500 mV, 1 k 20Hz to 20,000Hz More than 75dB 4 Rotary Heads Hi-Fi Sound - 2 Tracks / MONO Sound - 1 Track 2-12, X, Y, Z, S1-S41, 21-69 UHF channel 36 (23 to 69) Approx. 1minute and 48 seconds (with E-180 Cassette Tape) PAL DVD (12cm, 8cm), CD (12cm, 8cm) DVD: 4Hz - 22KHz CD: 4Hz - 20KHz 90dB 1% Be

5、low Measurable Level 90dB Audio :(RCA) 500 mV, 1Kohm Digital Audio : 0.5Vp-p/75 ohm CD :Wavelength: 775 - 805 nm Maximum output power: 0.5 mW DVD : Wavelength: 640 - 660 nm Maximum output power: 1.0 mW Remote control x 1 75 ohm Coaxial Cable x 1 Battery (UM-3) x 2 VIDEO: 1 Vp-p, 75 AUDIO: 500 mV, 50

6、 k VIDEO: 1 Vp-p, 75 AUDIO: 500 mV, 1 k RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS Section TitlePageSectionTitlePage Important Safety Precautions HOW TO IDENTIFY MODELS INSTRUCTIONS DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P.C.BOARDS .1-1 1-1 TOP CABINET AND FRONT CABINET . 1-1 1-2

7、 FLAP .1-1 1-3 DECK CD AND DVD PCB .1-1 1-4 POWER PCB .1-2 1-5 VCR DECK .1-2 1-6 VCR PCB .1-2 2. REMOVAL OF VCR DECK PARTS.1-3 2-1 TOP BRACKET.1-3 2-2 CASSETTE HOLDER ASSY.1-3 2-3 CASSETTE SIDE L/R .1-3 2-4 LINK UNIT .1-3 2-5 LINK LEVER / FLAP LEVER .1-3 2-6 LOADING MOTOR / WORM.1-4 2-7 TENSION ASSY

8、.1-4 2-8 T BRAKE ARM / T BRAKE BAND.1-5 2-9 S REEL / T REEL / IDLER ARM ASSY / IDLER GEAR .1-5 2-10 CASSETTE OPENER / PINCH ROLLER BLOCK / P5 ARM ASSY.1-6 2-11 A/C HEAD .1-6 2-12 FE HEAD .1-6 2-13 CYLINDER UNIT ASSY .1-6 2-14 CAPSTAN DD UNIT.1-7 2-15 MAIN CAM / PINCH ROLLER CAM / JOINT GEAR .1-7 2-1

9、6 LOADING GEAR S/T UNIT.1-7 2-17 CLUTCH ASSY / RING SPRING / CLUTCH LEVER / CLUTCH GEAR .1-8 2-18 CASSETTE GUIDE POST / INCLINED BASE S/T UNIT / P4 CAP.1-8 3. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC .1-9 REMOVAL.1-9 INSTALLATION .1-10 KEY TO ABBREVIATIONS . 1-11 SERVICE MODE LIST.1-13 WHEN “N” I

10、S ALWAYS BEING DISPLAYED ON THE TV MONITOR .1-13 PARENTAL CONTROL - RATING LEVEL 4-DIGIT SECURITY CODE CANNCELLATION .1-13 WHEN REPLACING EEPROM(MEMORY) IC .1-14 PREVENTIVE CHECKS AND SERVICE INTERVALS.1-15 CONFIRMATION OF HOURS USED .1-15 CLEANING .1-15 SERVICING FIXTURES AND TOOLS.1-16 MECHANISM A

11、DJUSTMENT PARTS LOCATION GUIDE.1-16 MECHANICAL ADJUSTMENT .1-17 TAPE REMOVAL METHOD AT NO POWER SUPPLY .1-17 DISC REMOVAL METHOD AT NO POWER SUPPLY.1-17 1. CONFIRMATION AND ADJUSTMENT .1-17 1-1 CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION .1-17 1-2 CONFIRMATION OF PLAYBACK TORQUE AND BACK TE

12、NSION TORQUE DURING PLAYBACK.1-17 1-3 CONFIRMATION OF VSR TORQUE.1-17 1-4 CONFIRMATION OF REEL BRAKE TORQUE.1-18 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM .1-18 2-1 GUIDE ROLLER .1-18 2-2 CONFIRMATION AND ADJUSTMENT OF AUDIO/CONTROL HEAD .1-19 2-3 TAPE RUNNING ADJUSTMENT(X-VALUE ADJUS

13、TMENT) .1-19 ELECTRICAL ADJUSTMENT .1-20 1. BASIC ADJUSMENT .1-20 1-1 SWITCHING POINT .1-20 The following table lists the differing points between models HR-XV1EK, HR-XV1EU-C, HR-XV1EU-S and HR-XV1EU-Y. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE .1-20 IC DESCRIPTION .1-21 SERVO TIMING CHART .1-34 ME

14、CHANISM TIMING CHART.1-35 TROUBLE SHOOTING GUIDE .1-36 (VCR SECTION) .1-36 (DVD SECTION) .1-60 CHARTS AND DIAGRAMS INTERCONNECTION DIAGRAM .2-1 READ CHANNEL SCHEMTAIC DIAGRAM .2-3 DSP SCHEMATIC DIAGRAM.2-5 MPEG SCHEMATIC DIAGRAM .2-7 MEMORY SCHEMATIC DIAGRAM .2-9 AUDIO/VIDEO SCHEMATIC DIAGRAM .2-11

15、SYSCON1 SCHEMATIC DIAGRAM .2-13 Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM .2-15 MICOM SCHEMATIC DIAGRAM.2-17 TUNER/JACK SCHEMATIC DIAGRAM .2-19 REGULATOR SCHEMATIC DIAGRAM.2-21 DISPLAY SCHEMATIC DIARAM.2-23 HI-FI/DEMODULATOR SCHEMATIC DIAGRAM .2-25 DVD IN/OUT SCHEMATIC DIAGRAM .2-27 SUB MICOM/OSD/VPS SCH

16、EMATIC DIAGRAM .2-29 POWER SCHEMATIC DIAGRAM .2-31 OPERATION SCHEMATIC DIAGRAM .2-33 PRINTED CIRCUIT BOARDS VCR(INSERTED PARTS) .2-35 PRINTED CIRCUIT BOARDS VCR(CHIP MOUNTED PARTS) .2-37 PRINTED CIRCUIT BOARDS DVD .2-39 PRINTED CIRCUIT BOARDS POWER / OPERATION.2-41 WAVEFORMS .2-42 DVD BLOCK DIAGRAM

17、.2-45 Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM .2-47 MICOM BLOCK DIAGRAM.2-49 REGULATOR BLOCK DIAGRAM.2-51 DISPLAY/OPERATION BLOCK DIAGRAM.2-53 TUNER/JACK/HI-FI/21PIN/OSD BLOCK DIAGRAM.2-55 DVD IN/OUT BLOCK DIAGRAM .2-57 POWER BLOCK DIAGRAM .2-59 SUB MICOM/OSD/VPS BLOCK DIAGRAM .2-61 PARTS LIST 3.1 PACKING

18、AND ACCESSORY ASSEMBLY . 3-1 3.2 FINAL ASSEMBLY . 3-2 3.3 MECHANISM ASSEMBLY . 3-4 3.4 ELECTRICAL PARTS LIST . 3-7 POWER BOARD ASSEMBLY. 3-7 VCR BOARD ASSEMBLY.3-7 DVD BOARD ASSEMBLY.3-13 OPERATION BOARD ASSEMBLY .3-16 REFERENCE GENERAL SPECIFICATIONS HR-XV1EK .4-1 GENERAL SPECIFICATIONS HR-XV1EU-C

19、.4-7 Notes: Mark is same as left. MODEL HR-XV1EK ITEM BROADCASTING STANDARDIB/G POWER SOURCE230240V,50Hz230V,50Hz AUTO TUNER SETTINGNOT USEDUSED SCENE REPLAYNOT USEDUSED GUIDE CH. SETUSEDNOT USED DECODER(AV2)NOT USEDUSED VPSNOT USEDUSED CATVNOT USEDUSED INSTRUCTION LANGUAGEENGLISHEN, FR, GE, DU, GRG

20、E, FR, IT, SP, PTGE, SW, NO, DA, FI HR-XV1EU-CHR-XV1EU-SHR-XV1EU-Y RadioFans.CN 收音机爱 好者资料库 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

21、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 are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performi

22、ng 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 critical for safety. Replace only with specified part numbers. Note: Parts in this category also include those sp

23、ecified 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.Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same ty

24、pe 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 Tape3) Spacers5) Barrier 2) PVC tubing4)

25、 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. Power cord Fig.2 10. Also check areas surrounding repaired locations. 11. Products using catho

26、de 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 cath- ode ray tubes and other pa

27、rts 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 such cases as when replacing the power transformer in sets wh

28、ere 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 prevent safety hazards, perform carefully and precisely according to the following steps. 1) Connector part number

29、: 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). Fig.7 cut close to connec

30、tor 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. Connector Metal sleeve Fig.5 (4) As shown

31、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 vPrecautions during Servicing 7.Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.) 8.Ch

32、eck 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 Crimping tool Fig.6 (5) Check the four points noted in Fig.7. Not easily pulled free Crimped at approx. center of

33、 metal sleeve Conductors extended Wire insulation recessed more than 4 mm S40888-01 RadioFans.CN 收音机爱 好者资料库 vSafety 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, Aft

34、erwards, 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 greater between power cord plug prongs and externally exposed parts of the set (RF terminals, anten

35、na 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, v

36、ideo 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) be- tween soldered terminals, and between terminals and surrounding metallic parts. See

37、 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 Metho

38、d : (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 following table 2. 5.Grounding (Class 1 model only) Confirm specified or lower grounding impedance betw

39、een 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. d d Chassis Power cord, primary wire Region USA 4,577,216;4,819,098 and 4,907,093 licensed for limited viewing uses only. DTS and DTS Digital Out are trademarks of Digital Theater Systems, lnc. VICTOR COMPANY OF JAPAN,LTD.ASSEMBLED