Jvc-HRXVC-20-UR-Service-Manual(1) 电路图 维修手册.pdf

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1、COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD SERVICE MANUAL Regarding service information other than these sections, refer to the service manual No. 82948 (HR-XVC20US). Also, be sure to note important safety precautions provided in the service manual. GENERAL Power supply: Power consumption: Weight:

2、Dimensions: Inputs/Outputs: Video: Audio: Antenna: Hi-Fi Frequency Response: Hi-Fi Dynamic Range: 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 an

3、d flutter: Dynamic range: Output: Pickup: ACCESSORIES: AC 120V 60Hz Operation: 18W Stand by: 2W 7.9lbs (3.6 kg) Width :16-15/16 inches (430 mm) Height:3-7/8 inches (99 mm) Depth :9-13/16 inches (249 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 c

4、oaxial 20Hz to 20,000Hz More than 90dB 4 Rotary Heads Hi-Fi Sound - 2 Tracks / MONO Sound - 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. 1 mi

5、nute 48 seconds (with T-120 Cassette Tape) (at+25C) NTSC DVD (12cm, 8cm), CD (12cm, 8cm) DVD: 4Hz - 22kHz CD: 4Hz - 20kHz 90dB 0.02% Less than 0.01% Wrms More than 90dB Video :(RCA) 1 Vp-p/75ohm Audio :(RCA) -8 dBm/1k ohm Digital Audio : 0.5Vp-p 75 ohm CD :Wavelength: 775 - 805 nm Maximum output pow

6、er: 0.5 mW DVD : Wavelength: 640 - 660 nm Maximum output power: 1.0 mW Remote control x 1 Batteries (2 x AA) 75 ohm Coaxial Cable x 1 AUDIO/VIDEO Cable x 1 No.82989 2003/07 HR-XVC20US(R) HR-XVC20US(R) D2VP11 DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSTTE RECORDER SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 TAB

7、LE OF CONTENTS Section TitlePageSectionTitlePage HOW TO IDENTIFY MODELS DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P.C.BOARDS .1-1 1-1 TOP CABINET AND FRONT CABINET . 1-1 1-2 FLAP .1-1 1-3 DVD DECK .1-1 1-4 DVD PCB .1-2 1-5 VCR DECK .1-2 1-6 VCR PCB .1-2 4. REMOVAL OF DVD DECK PARTS

8、.1-3 4-1 TRAY.1-3 4-2 MAIN CHASSIS ASSY .1-3 4-3 RACK LOADING / MAIN GEAR / RACK LOADING SPRING / RACK L SPRING.1-3 4-4 CLAMPER ASSY / INSULATOR(R) / LEVER SWITCH .1-3 4-5 TRAVERSE HOLDER / INSULATOR(F) .1-4 4-6 SWITCH PCB ASSY .1-4 4-7 RACK FEED ASSY .1-4 4-8 RELAY PCB ASSY .1-5 4-9 GEAR.1-5 4-10 I

9、DLER ARM .1-5 4-11 FEED MOTOR .1-6 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE .1-7 WHEN REPLACING EEPROM(MEMORY) IC .1-8 SERVO TIMING CHART .1-8 CHARTS AND DIAGRAMS INTERCONNECTION DIAGRAM .2-1 Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM .2-3 SYSCON SCHEMTAIC DIAGRAM .2-5 TUNER/JACK SCHEMATIC DIAGRAM .

10、2-7 OPERATION/DISPLAY SCHEMATIC DIAGRAM.2-9 HI-FI/DEMODULATOR SCHEMATIC DIAGRAM .2-11 POWER SCHEMATIC DIAGRAM .2-13 OPERATION/LED SCHEMATIC DIAGRAM .2-15 SW/RELAY/FG SCHEMATIC DIAGRAM .2-17 MPEG/MICOM SCHEMATIC DIAGRAM .2-19 MEMORY SCHEMATIC DIAGRAM .2-21 RF AMP/DSP SCHEMATIC DIAGRAM .2-23 AUDIO/VID

11、EO SCHEMATIC DIARAM .2-25 PRINTED CIRCUIT BOARD VCR .2-27 PRINTED CIRCUIT BOARD DVD .2-31 PRINTED CIRCUIT BOARD OPERATION.2-34 PARTS LIST 3.1 EXPLODED VIEW .3-1 3.1.1 PACKING AND ACCESSORY ASSEMBLY . 3-1 3.1.2 FINAL ASSEMBLY . 3-2 3.1.3 MECHANISM ASSEMBLY(DVD) .3-3 3.1.4 MECHANISM ASSEMBLY(VCR) . 3-

12、4 3.2 ELECTRICAL PARTS LIST . 3-6 PACKING AND ACCESSORY ASSEMBLY .3-6 FINAL ASSEMBLY .3-6 MECHANISM ASSEMBLY(VCR) .3-6 MECHANISM ASSEMBLY(DVD) .3-7 VCR BOARD ASSEMBLY. 3-7 OPERATION BOARD ASSEMBLY .3-12 DVD BOARD ASSEMBLY.3-12 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS:RISQUE DE CHOC ELECTRIQUE

13、-NE PAS OUVRIR LISTED 44L6 E68219 CAT. M2C58 VIDEO SYSTEM FCC ID : A7RM2C5A CHASSIS:M2C58 KD DVD/VIDEO CASSETTE RECORDER AC/CA 120V 60Hz 18W Confidential unpublished works. 1992-1997 Dolby Laboratories. All rights reserved. Dolby and the double-D symbol are trademarks of Dolby Laboratories. Manufact

14、ured under license from Dolby Laboratories. and 4,907,093 licensed for limited viewing uses only. Apparatus Claims of U.S. Patent Nos. 4,631,603;4,577,216;4,819,098 DTS and DTS Digital Out are trademarks of Digital Theater Systems, lnc. CERTIFICATION : COMPLIES WITH FDA RADIATION PERFORMANCE STANDAR

15、DS, 21 CFR SUBCHAPTER J. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. CABLE COMPATIBLE TELEVISION APPARATUS-TLVISION CBLOCOMPATIBLE, CANADA OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS : 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND 2 THIS DEVICE MUST ACCEPT ANY INTERFERENCE R

16、ECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. DISTRIBUT PAR JVC CANADA, INC. 21 FINCHDENE SQUARE, SCARBOROUGH, ONTARIO.MIX 1A7. DISTRIBUTED BY JVC CANADA, INC. 21 FINCHDENE SQUARE, SCARBOROUGH, ONTARIO.MIX 1A7. DISTRIBUTED BY JVC AMERICAS CORP., 1700 VALLEY ROAD, WAYNE, N.J. 07

17、470 DISTRIBUTOR / DISTRIBUTEUR MANUFACTURED/FABRIQU : SERIAL NO./NO.DE SERIE MADE IN THAILAND/FABRIQUE EN THAILANDE ( ) ( ) VHF/UHFDVD/VCR OUTPUT VIDEO AUDIO L R IN ANT ( ) OUT TV ( ) 722538A048 MODEL/MODELE NO. HR-XVC20U R blank : HR-XVC20US (R) : HR-XVC20US(R) RATING LABEL How to recognize from th

18、e appearance of the model concerned is written below. Please distinguish from several contents currently printed on the rating label of the rear panel. HOW TO IDENTIFY MODELS RadioFans.CN 收音机爱 好者资料库 1-1 DISASSEMBLY INSTRUCTIONS 1 1 2 Top Cabinet Front Cabinet 1 1 2 2 2 2 2 1 2 1. 1-1: Fig. 1-1 REMOV

19、AL OF MECHANICAL PARTS AND P.C. BOARDS TOP CABINET AND FRONT CABINET (Refer to Fig. 1-1) 1. 2. 3. 4. 5. 6. 7. Remove the 5 screws 1. Remove the Top Cabinet in the direction of arrow (A). Disconnect the following connector: (CP651). Unlock the 8 supports 2. Remove the Front Cabinet in the direction o

20、f arrow (B). Remove the 2 screws 3. Remove the Operation PCB in the direction of arrow (C). 1-2: FLAP (Refer to Fig. 1-2) 1. 2. Open Flap to 90 and flex in direction of arrow (A), at the same time slide in direction of arrow (B). Then lift in direction of arrow (C). Fig. 1-2 (A) Flap (B) (C) (B) 3 3

21、 Operation PCB CP651 2 (A) (C) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Make the short circuit on the position as shown Fig. 1-3 using a soldering. If you remove the DVD Deck with no soldering, the Laser may be damaged. Unlock the support 1 and remove the Deck Top Holder in the direction of arrow (A). Rem

22、ove the 2 screws 2. Remove the screw 3. Remove the screw 4. Disconnect the following connectors: (CP2601, CP2602, CP2603). Remove the DVD Deck in the direction of arrow (B). Remove the 3 screws 5. Remove the Front Angle in the direction of arrow (C). Remove the screw 6. Remove the DVD Angle. Fig. 1-

23、3 1-3: DVD DECK (Refer to Fig. 1-3) NOTE When the installation of the DVD Deck, remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector. 1 Make the sort circuit using a soldering. Pick Up PCB Deck Top Holder (A) 2 2 4 3 5 DVD Deck (C) Front An

24、gle 5 5 (B) CP2603 CP2602 CP2601 6 DVD Angle RadioFans.CN 收音机爱 好者资料库 1-2 DISASSEMBLY INSTRUCTIONS 1-6: VCR PCB (Refer to Fig. 1-6) 1. 2. 3. 4. 5. Remove the screw 1. Remove the screw 2. Remove the screw 3. Remove the 3 Pin Shield. Remove the VCR PCB in the direction of arrow. Fig. 1-6 1 VCR Deck 1-5

25、: VCR DECK (Refer to Fig. 1-5) 1. 2. 3. 4. 5. 6. Move the Cassette Holder Assy to the back side. Remove the screw 1. Remove the FE Head. Remove the 3 screws 2. Disconnect the following connectors: (CP101, CP102, and CP3001). Remove the AC Head Cover and VCR Deck in the direction of arrow. 3 VCR PCB

26、1-4: DVD PCB (Refer to Fig. 1-4) 1. 2. 3. 4. Remove the 3 screws 1. Remove the 4 screws 2. Disconnect the following connectors: (CP4002 and CP8102). Remove the DVD PCB in the direction of arrow. Fig. 1-4 Do not remove the cable at the FE Head section. The FE Head may be damaged if you remove the cab

27、le by force. NOTE Fig. 1-5 2 FE Head 2 CP101 CP102 CP3001 AC Head Cover 2 1 2 3 Pin Shield 1 1 DVD PCB 2 2 2 2 1 CP4002 CP8102 1-3 DISASSEMBLY INSTRUCTIONS 4. REMOVAL OF DVD DECK PARTS NOTE 1. Do not disassemble the DVD DECK PARTS except listed parts here. Minute adjustments are needed if the disas-

28、 semble is done. If the repair is needed except listed parts, replace the DVD MECHA ASSY. 4-1: TRAY (Refer to Fig. 4-1-A) 1. 2. Set the Tray opened. (Refer to the DISC REMOVAL METHOD AT NO POWER SUPPLY) Unlock the support 1 and remove the Tray. Main Frame Assy 1 Tray Fig. 4-1-A NOTE 1. In case of th

29、e Tray installation, install them as the circled section of Fig. 4-1-B so that the each markers are met. Fig. 4-1-B Tray Main Frame Assy 4-2: MAIN CHASSIS ASSY (Refer to Fig. 4-2-A) 1. 2. 3. Remove the Main Chassis Assy from the Insulator (R). Unlock the support 1. Remove the Main Chassis Assy. Fig.

30、 4-2-A Insulator (R) (Green) 1 Main Frame Assy Main Chassis Assy 4-3: RACK LOADING/MAIN GEAR/ RACK LOADING SPRING/ RACK L SPRING (Refer to Fig. 4-3) 1. 2. 3. Remove the Rack L Spring. Press down the catcher 1 and slide the Rack Loading. Remove the Rack Loading, Rack Loading Spring and Main Gear. Fig

31、. 4-3 4-4: CLAMPER ASSY/INSULATOR(R)/LEVER SWITCH (Refer to Fig. 4-4-A) 1. 2. 3. 4. 5. Remove the screw 1. Remove the Lever Switch. Remove the 2 Insulator (R). Press the Clamper and rotate the Clamper Plate clockwise, then unlock the 3 supports 2. Remove the Clamper Plate, Clamper Magnet and Clamper

32、. Insulator (R) (Green)Insulator (R) (Green) Clamper Plate Clamper Magnet Main Frame Lever Switch Clamper 1 2 2 2 Fig. 4-4-A Fig. 4-2-B Main Chassis Assy Rack Loading Move it to the direction of the arrow. Main Frame Assy 1 Check Lock 2 3 4 5 6 6 5 4 Rack Loading Spring Rack Loading Main Gear 1 Main

33、 Frame Assy NOTE 1. In case of the Main Chassis Assy, install it from (1) to (6) in order. (Refer to Fig. 4-2-B) Rack L Spring 1-4 DISASSEMBLY INSTRUCTIONS Lever Switch The Lever should be position between A and B. BRack LoadingA NOTE 1. 2. 3. 4. When installing the Clamper Magnet, install it with t

34、he green face up. When installing the wire of the Lever Switch, install it correctly as Fig. 4-4-B. When installing the Lever Switch, install it correctly as Fig. 4-4-C. In case of the Lever Switch installation, hook the wire on the Main Frame as shown Fig. 4-4-D. Fig. 4-4-B Fig. 4-4-C Fig. 4-4-D 4-

35、5: TRAVERSE HOLDER/INSULATOR (F) (Refer to Fig. 4-5-A) 1. 2. Remove the Traverse Holder. Remove the 2 Insulator (F). Main Chassis Assy Insulator (F) (Black) Traverse Holder Insulator (F) (Black) Fig. 4-5-A Main Chassis Assy Traverse Holder Fig. 4-5-B 4-6: SWITCH PCB ASSY (Refer to Fig. 4-6-A) 1. 2.

36、Remove the screw 1. Remove the Switch PCB Assy. 1 Switch PCB Assy Main Chassis Assy Screw Torque: 4 0.5kgfcm Fig. 4-6-A NOTE 1. When installing the wire of the Switch PCB, install it correctly as Fig. 4-6-B. Switch PCB Assy Black White From Relay PCB Fig. 4-6-B 4-7: RACK FEED ASSY (Refer to Fig. 4-7

37、-A) 1. 2. Remove the screw 1. Remove the Rack Feed 1/2 Spring, Rack Feed 1/2 and Rack Feed Lever. Screw Torque: 3.5 0.5kgfcm Lever Switch BlueWhite Red From DVD PCB NOTE 1. After the installing of the Traverse Holder, check if the wire is like Fig. 4-5-B. Fig. 4-7-A 1 Rack Feed 2 Rack Feed 1 Spring

38、Rack Feed 2 Spring Rack Feed Lever Rack Feed 1 Main Chassis Assy 1-5 DISASSEMBLY INSTRUCTIONS 4-9: GEAR (Refer to Fig. 4-9-A) 1. 2. Unlock the support 1. Remove the Middle Gear 1/2/3, Idler Gear and Feed Gear. Middle Gear 2 Middle Gear 1 Middle Gear 3 Feed Gear Idler Gear Main Chassis Assy Fig. 4-9-

39、A NOTE 1. 2. In case of the Idler Gear installation, install correctly as Fig. 4-9-B. When installing the Middle Gear 2, check if the Middle Gear 2 is locked correctly as Fig. 4-9-C. Fig. 4-9-B Fig. 4-9-C 4-10: IDLER ARM (Refer to Fig. 4-10-A) 1. 2. 3. Remove the Idler Arm Spring. Remove the Chassis

40、 Spring. Remove the Idler Arm. Idler Arm Spring Idler Arm Main Chassis Assy Chassis Spring Fig. 4-10-A NOTE 1. 2. After the assembly of the Rack Feed, check if the Rack Feed 1/2 is moving smoothly. (Refer to Fig. 4-7-B) In case of the Rack Feed Assy installation, install cor- rectly as Fig. 4-7-C. M

41、oving smoothly Moving smoothly Fig. 4-7-B Should not be engaged. Check the position of the Rack Feed Lever. Fig. 4-7-C 4-8: RELAY PCB ASSY (Refer to Fig. 4-8-A) 1. 2. Remove the screw 1. Remove the Relay PCB Assy. Main Chassis Assy Relay PCB Assy Screw Torque: 4 0.5kgfcm1 Fig. 4-8-A NOTE 1. When ins

42、talling the wire of the Relay PCB, install it correctly as Fig. 4-8-B. Fig. 4-8-B OK Idler Gear Idler Arm NG Idler Gear Idler Arm Check Lock Middle Gear 2 1-6 DISASSEMBLY INSTRUCTIONS NOTE 1. 2. 3. In case of the Idler Arm installation, install as the circled section of Fig. 4-10-B. In case of the Idler Arm Spring installation, install as the circled section of Fig. 4-10-C. In case of the Chassis Spring installation, install as the circled section of Fig. 4-10-D. Idler Arm Main Chassis Assy Fig. 4-10-B Fig. 4-10-C Idler Arm Spring Main Chassis Assy