Jvc-KDDV-5000-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.49879 2003/8 DVD/CD RECEIVER 4987920038 KD-DV5000 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPEC

2、IFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 4ADJ

3、USTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 5TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. 1-23 Area Suffix E - Continental Europe RadioFans.CN 收音机爱 好者资料库 1-2 (No.49879) SPECIFICATION Design and specifications are subject to change without notice. If a kit is necessary for your car, consult a telephone directory for the nearest car audio speciality shop. Mistracking may result from driv

5、ing on extremely rough roads. This does not damage the unit and the disc, but will be annoying. We recommend that you stop disc play while driving on such rough roads. AUDIO AMPLIFIER SECTION Maximum Power OutputFront50 W per channel Rear50 W per channel Continuous Power Output (RMS) Front19 W per c

6、hannel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400

7、Hz, 1 kHz, 2.4 kHz, 6 kHz, 12 kHz Level10 dB Signal-to-Noise Ratio70 dB Audio output level Analog (2nd AUDIO OUT)6 mW (at 16 ) Digital (DIGITAL OUT: Optical)Signal wave length: 660 nm Output level-21 dBm to -15 dBm Line-Out Level/Impedance2.0 V/20 k load (full scale) Output Impedance1 k Color system

8、NTSC Video output (composite)1 Vp-p/75 TUNER SECTIONFrequency RangeFM87.5 MHz to 108.0 MHz AM(MW) 522 kHz to 1620 kHz (LW) 144 kHz to 279 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response

9、40 Hz to 15000 Hz Stereo Separation35 dB Capture Ratio1.5 dB AM TunerSensitivity20 V Selectivity35 dB DVD/CD PLAYER SECTION Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of channels2 channels (stereo) Frequency ResponseDVD, fs=48 kHz16 Hz to 22000 Hz DVD, fs=96 kHz 1

10、6 Hz to 44000 Hz VCD, CD, MP316 Hz to 20000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit MP3 recording formatMPEG 1/2 Audio Layer 3 Max. Bit rate320 Kbps GENERALPower RequirementOperating Voltage:DC 14.4 V (11 V to 16 V allowance) Grounding SystemNegativ

11、e ground Allowable Operating Temperature 0C to +40C (32F to 104F) Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 158 mm (7-3/16 2-1/16 6-1/4) Panel Size (approx.)188 mm 58 mm 12 mm (7-7/16 2-5/16 1/2) Mass (approx.)1.7 kg (3.8 lbs) (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.49879

12、)1-3 SECTION 1 PRECAUTION 1.1Safety Precautions ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. ! Please use enough caution not to see the beam directly or touch it in case of an adju

13、stment or operation check. RadioFans.CN 收音机爱 好者资料库 1-4 (No.49879) 1.2Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to preve

14、nt this when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as mechanism unit. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground th

15、e workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body. (3) Handling the o

16、ptical pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition o

17、f the laser diode in the optical pickup. The testers internal power source can easily destroy the laser diode. 1.3Handling the traverse unit (optical pickup) (1) Before disconnecting the flexible wire from the connector CN10 on the front end board, solder the short-circuit point on the flex- ible wi

18、re. Caution: If you do not follow this instruction, the DVD pickup may be damaged. (2) Disconnect the flexible wire from the connector CN10 on the front end board. (3) Remove the solders from the short-circuit point on the flexible wire after replacing the DVD pickup. (4) Connect the flexible wire t

19、o the connector CN10 on the front end board. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Front end board CN10 Flexible wire Short-circuit point (No.49879)1-5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE I

20、NSTRUCTIONS. 1-6 (No.49879) SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower left part of the front panel assembly and remove the front panel assembly. Fig.1 3.1.2Removing the bottom cover (See Fig.2) Prior to perfo

21、rming the following procedures, remove the front panel assembly as required. (1) Turn over the main body and remove the two screws A at- taching the bottom cover. (2) Release the two joints a, two joints b and joint c. Caution: Do not damage the main board when releasing the joints using a screwdriv

22、er or a similar tool. Fig.2 Front panel assembly Detach button Bottom cover Joint b Joint b Joint a Joint a Joint c AA (No.49879)1-7 3.1.3Removing the front chassis assembly (See Figs.3 and 4) Prior to performing the following procedures, remove the front panel assembly and bottom cover. (1) From th

23、e both sides of the main body, remove the two screws B attaching the front chassis assembly. (See Fig.3.) (2) From the front side of the main body, remove the two screws C attaching the front chassis assembly. (See Fig.4.) (3) From the both sides of the main body, release the two joints d and two jo

24、ints e. (See Fig.3.) Fig.3 Fig.4 3.1.4Removing the heat sink (See Fig.5) Prior to performing the following procedure, remove the front panel and front chassis assemblies as required. (1) From the left side of the main body, remove the two screws D and three screws E attaching the heat sink. Fig.5 3.

25、1.5Removing the rear bracket (See Fig.6) Prior to performing the following procedures, remove the bot- tom cover. (1) From the back side of the main body, remove the three screws F, five screws G, two screws H, screw J, screw K and screw L attaching the rear bracket. (2) Remove the rear bracket. Not

26、e: When attaching the screws K and L, attach the AV cable and antenna cable holders with them. Fig.6 Joint d Joint d Front chassis assembly B Joint e Joint e B C Front chassis assembly D E Heat sink G Rear bracket FL K F JHG F Antenna cable holderAV cable holder 1-8 (No.49879) 3.1.6Removing the main

27、 board (See Fig.7) Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis assembly, heat sink and rear bracket. (1) Remove the two screws M attaching the main board. (2) Disconnect the connectors CN781 and CN782 on the main board from the DVD mecha

28、nism assembly. Reference: Remove the fan unit as required. (Disconnect the fan unit wire from the connector CN531 on the main board and remove the fan unit.) Fig.7 3.1.7Removing the DVD mechanism assembly (See Fig.8) Prior to performing the following procedure, remove the front panel assembly, botto

29、m cover, front chassis assembly, heat sink, rear bracket and main board. (1) From the inside of the top chassis, remove the three screws N attaching the DVD mechanism assembly. Fig.8 CN782 M M CN781 Fan unit CN531 Main board N N N DVD mechanism assembly Top chassis (No.49879)1-9 3.1.8Removing the ba

30、ck end board (See Figs.9 to 11) Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis assembly, heat sink, rear bracket, main board and DVD mechanism assembly. (1) From the top side of the DVD mechanism assembly, re- move the two screws P attachin

31、g the heat sink (MECHA). (See Fig.9.) (2) Remove the two screws Q attaching the shield. (See Fig.9.) (3) Remove the shield and heat sink (MECHA) from the DVD mechanism assembly. (4) Remove the two screws R attaching the heat sink (P). (See Fig.10.) (5) Release the two joints f and then release the t

32、wo joints g. (See Fig.10.) (6) Disconnect the card wire from the connector CN506 on the back end board. (See Fig.10.) (7) Remove the four screws S and screw S attaching the back end board. (See Fig.10.) (8) Release the three joints h and then take out the back end board from the DVD mechanism assemb

33、ly. (See Fig.11.) Reference: When attaching the screw S, attach the earth wire with it. (See Fig.11.) Fig.9 Fig.10 Fig.11 Q DVD mechanism assembly Shield P Heat sink(MECHA) Heat sink(P) Back end board Card wire CN506 Joint f Joint f Joints g R Fig.11 Back end board DVD mechanism assembly Earth wire

34、Joint hJoint h Joint h S S S 1-10 (No.49879) 3.1.9Removing the front board (See Figs. 12 to 14) Prior to performing the following procedures, remove the front panel assembly. (1) From the back side of the front panel assembly, remove the six screws T attaching the rear cover. (See Fig.12.) (2) Relea

35、se the ten joints i attaching the rear cover to the front panel assembly. (See Fig.13.) (3) Take out the front board from the front panel assembly. (See Fig.14.) Note: Do not lose the springs when removing the front board. Fig.12 Fig.13 Fig.14 T T T T Rear cover Front panel assembly Joints i Joints

36、i Rear cover Joint i Joint i Front board Front panel assembly SpringSpring (No.49879)1-11 3.2DVD mechanism assembly 3.2.1Removing the front end board (See Fig.1) Caution: Before disconnecting the flexible wire extending from the DVD pickup, solder the short-circuit point on the flexible wire using a

37、 grounding soldering iron. If you do not follow this instruction, the DVD pickup may be damaged. (1) Turn over the body, and solder the short-circuit point on the flexible wire extending from the DVD pickup. (2) Disconnect the flexible wire from connector CN10 on the front end board. (3) Disconnect

38、the flexible wire from connector CN201 on the front end board. (4) Disconnect the flexible wire from connector CN202 on the front end board. (5) Unsolder two soldering a on the front end board and dis- connect the wire extending from the feed motor. (6) Remove the three screws A attaching the front

39、end board. Caution: As the flexible wire to be connected to CN10, make sure to at- tach it to the front end board using a double tape. Caution: After reassembling, unsolder the short-circuit point. Fig.1 Double tape Feed motor Solder point Front end board CN202 CN10 A a. A A CN201 Flexible wire Shor

40、t-circuit point 1-12 (No.49879) 3.2.2Removing the top cover (See Fig.2) (1) Remove the two screws B attaching the top cover on the back of the body. Remove the top cover upward. Reference: When reassembling, set part b of the top cover under the bending part c of the chassis frame. 3.2.3Removing the

41、 mechanism section (See Fig.2 4) Prior to performing the following procedure, remove the top cover. (1) Remove the two screws C attaching the right and left stop- pers on the front side. (2) Remove the two floating springs on the bottom of the body. (3) Move the mechanism section upward and remove f

42、rom the chassis frame. The three damper springs come off from the dampers. Caution: When reassembling, reattach the damper spring to the damp- er respectively and insert the three shafts on the bottom of the mechanism to the dampers. Caution: Before inserting the shaft to the dampers, apply IPA to t

43、he hole of damper. Fig.2 Fig.3 Fig.4 B Top cover Stopper Stopper C C ? c Floating spring Mechanism section Damper (Purple) Damper (Black) Damper (Black) Chassis frame Damper SP.(F) (Silver) Damper SP.(F) (Silver) Damper SP.(R) (Red) (No.49879)1-13 3.2.4Removing the clamper unit (See Fig.5 9) Prior t

44、o performing the following procedure, remove the top cover and the mechanism section. (1) Remove the clamper spring on the bottom of the mecha- nism section. (2) Release part d of the clamper spring from the bending part of the chassis base assembly. (3) Move the clamper unit in the direction of the

45、 arrow and turn. Release the two joints e and f, then remove the clamper unit upward. 3.2.5Reattaching the clamper unit (See Fig.5 9) (1) Attach the clamper spring to the clamper unit. (2) Move the clamper unit to set the side joints e and f to each boss of the chassis base. Make sure that part g is

46、 inserted to the notch of the chassis base. (3) Move the clamper spring d to the outside of the bending part of the chassis base. Caution: When reattaching, temporarily hook the end of the clamper spring as shown in the figure to make the work easy. Fig.5 Fig.6 Fig.7 Fig.8 Fig.9 Clamper unit Clamper

47、 spring Clamper2 spring g f e Chassis base Clamper2 spring Clamper spring Chassis base d Clamper unit Clamper spring Notch g Clamper unit 1-14 (No.49879) 3.2.6Removing the front unit (See Fig.10 12) Prior to performing the following procedure, remove the top cover and the mechanism section. (1) Disc

48、onnect the flexible wire from connector CN202 on the front end board at the bottom of the body. (2) Remove the screw D attaching the front unit on top of the body. (3) Move the front unit toward the front to release joint h, and release two joints i and j on the right side of the chassis base. Then

49、remove the front unit upward. (4) Remove the two screws E attaching the switch board. Reference: You can remove the switch board only without removing the front unit. Caution: When reassembling, attach the flexible wire extending from the switch board using a double tape. Fig.10 Fig.11 Fig.12 D Front unit h h Front unit Switch board j D E i Double tape Front-end board Flexible wire CN202 (No.49879)1-15 3.2.7Removing the loading arm S.A. (See Fig.13, 14) Prior to performing the following procedure, remove the top cover, the