Jvc-HRXVC-1-U-Service-Manual(1) 电路图 维修手册.pdf

《Jvc-HRXVC-1-U-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Jvc-HRXVC-1-U-Service-Manual(1) 电路图 维修手册.pdf（116页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL No.82902 January 2002 HR-XVC1U DVD/CD PLAYER Hi-Fi STEREO VIDEO CASETTE RECORDER SPECIFICATIONS T V / V C R C H + TV VCRDVD POWER DVD MENUMARKERRETURN OPEN/ CLOSE DISPLAYA.TRKC.RESETZERO RETURN SUB TITLEANGLE SEARCH MODE SP/EP PLAY MODE ZOOMTITLE REPEAT A-B TV POWER INPUT TV VOL 0 TIM

2、ERTV/VCR REW PLAY FF REC STOP PAUSE SKIP /INDEX SKIP /INDEX T V / V C R C H SETSET ENTER/ SELECT SET UP MENU CANCEL OSD A.MONITOR SLOW SKIP SEARCH VCR/DVD/TV GENERAL Power supply: Power consumption: Weight: Dimensions: Inputs/Outputs: Video: Audio: Antenna: Hi-Fi Frequency Response: Hi-Fi Dynamic Ra

3、nge: VCR section Video Head: Audio Track: Tuner: RF Channel Output: F.FWD/REW Time: DVD section Signal system: Applicable disc: Audio characteristics: Frequency response: S/N Ratio: Harmonic distortion: Wow and flutter: Dynamic range: Output: Pickup: ACCESSORIES: AC 120V 60Hz Operation: 20W Stand by

4、: 3W 9.9lbs (4.5 kg) Width :16-15/16 inches (430 mm) Height: 3-7/8 inches (99 mm) Depth :12-1/4 inches (311 mm) In: 1Vp-p/75 ohm Out: 1Vp-p/75 ohm In: -8 dBm/50K ohm Out: -8 dBm/1K ohm UHF/VHF IN/OUT: 75 ohm coaxial 20Hz to 20,000Hz More than 90dB 4 Rotary Heads Hi-Fi Sound - 2 Tracks / MONO Sound -

5、 1 Track 181 Channel Freq. Synthesized VHF2-13 UHF14-69 CATV14-36 (A)-(W) 37-59 (AA)-(WW) 60-85 (AAA)-(ZZZ) 86-94 (86)-(94) 95-99 (A-5)-(A-1) 100-125 (100)-(125) 01 (5A) Channel 3 or 4, Switchable Approx. 1minutes and 48 seconds (with T-120 Cassette Tape) (at+25 C) NTSC DVD (12cm, 8cm), CD (12cm, 8c

6、m) DVD: 4Hz - 22KHz CD: 4Hz - 20KHz 90dB 0.01% Below Measurable Level 90dB Video :(RCA) 1 Vp-p/75ohm Audio :(RCA) -8 dBm/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 Batte

7、ries (2 x AA) 75 ohm Coaxial Cable x 1 AUDIO/VIDEO Cable x 1 This service manual is printed on 100% recycled paper. COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS Section TitlePageSectionTitlePage Important Safety Precautions INSTRUCTION

8、S DISASSEMBLY INSTRUCTIONS 1.REMOVAL OF MECHANICAL PARTS AND P.C.BOARDS .1-1 1-1TOP CABINET AND FRONT CABINET .1-1 1-2FLAP .1-1 1-3VCR DECK.1-1 1-4VCR MT PCB .1-1 1-5DECK CD AND MPEG MT PCB.1-2 1-6POWER PCB .1-2 2.REMOVAL OF VCR DECK PARTS.1-1 2-1TOP BRACKET .1-3 2-2CASSETTE HOLDER ASSY .1-3 2-3CASS

9、ETTE SIDE L/R .1-3 2-4LINK UNIT .1-3 2-5LINK LEVER/FLAP LEVER.1-3 2-6LOADING MOTOR/WORM .1-4 2-7TENSION ASSY .1-4 2-8T BRAKE ARM/T BRAKE BAND .1-5 2-9S REEL/T REEL/IDLER ARM ASSY/IDLER GESR .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(RECORDER ONLY) .1

10、-6 2-13 AHC ASSY/CYLINDER UNIT ASSY.1-6 2-14 CAPSTAN DD UNIT .1-7 2-15MAIN CAM/PINCH ROLLER CAM/JOINT GEAR .1-7 2-16LOADING GEAR S/T UNIT.1-7 2-17CLUTCH ASSY/RING SPRING/ CLUTCH LEVER/CLUTCH GEAR .1-8 2-18CASSETTE GUIDE POST/ INCLINED BASE S/T UNIT/P4 CAP .1-8 3.REMOVAL AND INSTALLATION OF FLAT PACK

11、AGE IC.1-9 REMOVAL.1-9 INSTALLATION .1-10 KEY TO ABBREVIATIONS . 1-11 SERVICE MODE LIST.1-13 WHEN REPLACING EEPROM (MEMORY) IC .1-14 PARENTAL CONTROL - RATING LEVEL .1-14 PREVENTIVE CHECKS AND SERVICE INTERVALS CONFIRMATION OF HOURS USED.1-15 CLEANING.1-16 PECULUIAR SERVICE .1-17 1.DVD SECTION .1-17

12、 DISC REMOVAL METHOD AT NO POWER SUPPLY.1-17 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION).1-18 2.VHS SECTION.1-19 SERVICING FIXTURES AND TOOLS .1-19 MECHANISM ADJUSTMENT PARTS LOCATION GUIDE.1-19 MECHANICAL ADJUSTMENTS TAPE REMOVAL METHOD AT NO POWER SUPPLY .1-20 1.CONFIRMATION AND

13、 ADJUSTMENT .1-20 1-1CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION .1-20 1-2CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAY BACK.1-20 1-3CONFIRMATION OF VSR TORQUE .1-20 1-4CONFIRMATION OF REEL BRAKE TORQUE .1-21 2.CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM .1-2

14、1 2-1GUIDE ROLLER .1-21 2-2CONFIRMATION AND ADJUSTMENT OF AUDIO/CONTROL HEAD .1-22 2-3TAPE RUNNING ADJUSTMENT .1-22 ELECTRICAL ADJUSTMENTS 1.BASIC ADJUSTMENT .1-23 1-1SWITCHING POINT.1-23 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE .1-23 IC DESCRIPTIONS .1-24 SERVO TIMING CHART .1-27 MECHANISM TIMING

15、 CHART.1-28 TROUBLESHOOTING GUIDE VCR SECTION .1-29 DVD SECTION .1-52 INTERCONNECTION DIAGRAM .2-1 POWER SCHEMATIC DIAGRAM.2-3 MPEG SCHEMATIC DIAGRAM.2-5 SDRAM SCHEMATIC DIAGRAM .2-7 DVD SYSCON SCHEMATIC DIAGRAM.2-9 VIDEO ENCORDER SCHEMATIC DIAGRAM.2-11 Y/C AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM .2-13

16、 VCR SYSCON SCHEMATIC DIAGRAM.2-15 TUNER/JACK SCHEMATIC DIAGRAM.2-17 REGULATOR SCHEMATIC DIAGRAM .2-19 OPERATION/DISPLAY SCHEMATIC DIAGRAM.2-21 Hi-Fi/DEMODULATOR SCHEMATIC DIAGRAM .2-23 DVD IN/OUT SCHEMATIC DIAGRAM.2-25 OPERATION SCHEMATIC DIAGRAM .2-27 PRINTED CIRCUIT BOARDS POWER/OPERATION .2-29 M

17、PEG.2-30 VCR.2-31 WAVEFORMS .2-35 DVD BLOCK DIAGRAM .2-39 Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM .2-41 SYSTEM CONTROL BLOCK DIAGRAM .2-43 REGULATOR BLOCK DIAGRAM .2-45 OPERATION/DISPLAY BLOCK DIAGRAM .2-47 HIFI/DEMODULATOR BLOCK DIAGRAM.2-49 TUNER/JACK BLOCK DIAGRAM .2-51 DVD IN/OUT BLOCK DIAGRAM .2-5

18、3 POWR BLOCK DIAGRAM .2-55 PARTS LIST 3.1PACKING AND ACCESSORY ASSEMBLY .3-1 3.2FINAL ASSEMBLY .3-2 3.3MECHANISM ASSEMBLY .3-3 3.4ELECTRICAL PARTS LIST .3-7 VCR MT PCB ASSEMBLY .3-7 MPEG MT PCB ASSEMBLY . 3-11 POWER PCB ASSEMBLY .3-13 OPERATION PCB ASSEMBLY .3-14 Reference.4-1 HR-XVC1UHR-XVC1U(C) IN

19、STRUCTION LANGUAGEENGLISHENGLISH, FRENCH REGISTRATION CARDUSEDNOT USED GUARANTEE CARDNOT USEDUSED SERVICE STAION LISTNOT USEDUSED The following table lists the differing points between Models (HR-XVC1U and HR-XVC1U(C) in this series. MODEL ITEM RadioFans.CN 收音机爱 好者资料库 Important Safety Precautions Pr

20、ior 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

21、 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 performing service, be sure to read and com- ply with these and other cautionary notices appearing in the operation and service ma

22、nuals. 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 com- ply with X-ray emission standards for products using cathode ray tubes and those specified for compliance

23、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) D

24、ouble 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) Insulation sheets for transistors 6.When replacing AC primary side components (transformers, power cords, noise blocking

25、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 cathode ray tubes (CRTs) In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related c

26、ircuits 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 parts with only the specified parts. Under no circumstances attempt to modify these circuits. Unauthorized modification can

27、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 where the connections between the power cord and power transformer primary lead wires are performed using crimp type connect

28、ors, 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 : E03830-001 2) Required tool : Connector crimping tool of the proper type which will not damage insulated parts. 3) Repla

29、cement 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 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

30、 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 in Fig.6, use the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete c

31、losure 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.Check that replaced wires do not contact sharp edged or pointed parts. 9.When a power cord has been replaced, check that 10-

32、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 metal sleeve Conductors extended Wire insulation recessed more than 4 mm S40888-01 vSafety Check after Servicing Examine

33、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 compli- ance with safety standards. 1.Insulation resistan

34、ce 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 C

35、onfirm 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

36、 circuit components, confirm specified clearance distance (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 expos

37、ed 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 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 groun