Jvc-KDDV-5101-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MA151 2005/2 DVD/CD RECEIVER MA15120052 KD-DV5101 TABLE OF CONTENTS 1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIF

2、IC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUS

3、TMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、1-29 Area suffix E - Southern Europe EU - Turkey RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA151) SPECIFICATION Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront50 W per channel Rear50 W per channel Continuous Power Output (RMS) Front19 W per cha

5、nnel 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. Load Impedance4 (4 to 8 allowance) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz, 15 kHz

6、Level10 dB Signal-to-Noise Ratio70 dB Audio Output LevelDigital (DIGITAL OUT: Optical)Signal wave length: 660 nm Output level: -21 dBm to -15 dBm Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance: 1 k Color SystemPAL Video Output (composite)1 Vp-p/75 TUNER SECTION Frequency Range

7、FM87.5 MHz to 108.0 MHz AM(MW) 522 kHz to 1 620 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 Response40 Hz to 15 000 Hz Stereo Separation35 dB Capture Ratio1.5 dB MW T

8、unerSensitivity20 V Selectivity35 dB LW TunerSensitivity50 V DVD/CD PLAYER SECTION Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD, CD, MP3, WMA16 Hz to 20 000 Hz Dynamic Range

9、96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit MP3 (MPEG Audio Layer 3)Max. Bit Rate: 320 kbps WMA (Windows Media Audio)Max. Bit Rate: 192 kbps GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating

10、 Temperature0C to +40C Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 158 mm Panel Size (approx.)188 mm 58 mm 11 mm Mass (approx.)1.7 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA151)1-7 SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the front panel assembly (See Fig

11、.1) Push the detach button in the lower left part of the front panel as- sembly and remove the front panel assembly. Fig.1 3.1.2Removing the bottom cover (See Fig.2) Reference: Remove the front panel assembly as required. (1) Release the two joints a, two joints b and joint c. (2) Remove the bottom

12、cover from the main body. Caution: Do not damage the main board when releasing the joints using a screwdriver or a similar tool. Fig.2 Front panel assembly Detach button Bottom cover b b a a c RadioFans.CN 收音机爱 好者资料库 1-8 (No.MA151) 3.1.3Removing the front chassis assembly (See Figs.3 and 4) Remove t

13、he front panel assembly and bottom cover. (1) From the front side of the main body, remove the two screws A attaching the front chassis assembly. (See Fig.3.) (2) From the both sides of the main body, remove the two screws B attaching the front chassis assembly. (See Fig.4.) (3) Release the two join

14、ts d and two joints e. (See Fig.4.) Fig.3 Fig.4 3.1.4Removing the side heat sink (See Fig.5) Reference: Remove the front panel and front chassis assemblies as re- quired. From the left side of the main body, remove the two screws C and three screws D attaching the side heat sink. Fig.5 A Front chass

15、is assembly d d Front chassis assembly B e e B C D Side heat sink (No.MA151)1-9 3.1.5Removing the rear bracket (See Fig.6) Remove the bottom cover. (1) From the back side of the main body, remove the two screws E, three screws E, two screws F and three screws G attaching the rear bracket. (2) Remove

16、 the LINE IN cable from the rear bracket in the di- rection of the arrow. Reference: When attaching the LINE IN cable, insert it in a slot of the rear bracket and hang it on a wire holder. When attaching the screws E, attach the cable holders with them. 3.1.6Removing the main board (See Figs.6 and 7

17、) Remove the front panel assembly, bottom cover, front chassis assembly and side heat sink. Reference: Remove the rear bracket as required. (1) From the back side of the main body, remove the three screws G attaching the main board. (See Fig.6.) (2) From the bottom side of the main body, remove the

18、three screws H attaching the main board. (See Fig.7.) (3) Disconnect the connector CN961 on the main board from the DVD mechanism assembly and take out the main board from the main body. (See Fig.7.) Fig.6 Fig.7 3.1.7Removing the DVD mechanism assembly (See Fig.8) Remove the front panel assembly, bo

19、ttom cover, front chassis assembly, side heat sink and main board. (1) From the inside of the top chassis, remove the three screws J attaching the DVD mechanism assembly. (2) Take out the DVD mechanism assembly from the top chas- sis. Fig.8 Rear bracket F G E Cable holders G G E E Cable holder Wire

20、holder Slot LINE IN cable Rear bracket E E CN961 H H Main board H J J J DVD mechanism assembly Top chassis 1-10 (No.MA151) 3.1.8Removing the main sub board (See Figs.9 to 11) Remove the front panel assembly, bottom cover, front chassis assembly, side heat sink, main board and DVD mechanism as- sembl

21、y. (1) From the top side of the DVD mechanism assembly, re- move the two screws K attaching the dust cover. (See Fig.9.) (2) Remove the dust cover from the DVD mechanism assem- bly. (See Fig.9.) Reference: When attaching the dust cover, align the joints f in the holes of the dust cover before attach

22、ing the screws K. (See Fig.9.) (3) Release the lock of the connector CN962 on the main sub board and disconnect the card wire. (See Fig.10.) (4) Bend the joint g in the direction of the arrow. (See Fig.10.) (5) Remove the two screws L attaching the main sub board and remove the main sub board from t

23、he DVD mechanism assembly. (See Fig.10.) Reference: When attaching the main sub board, align the joints h in the holes of the main sub board before attaching the screws L. (See Fig.10.) When the resolution of DVD mechanism assembly is done sequentially, remove the two screws M attaching the support

24、bracket. (See Fig.11.) Remove the card wire from the connector CN401 as re- quired. (See Fig.11.) Fig.9 Fig.10 Fig.11 K K DVD mechanism assembly Dust cover f f Card wire g L h h CN962 Lock Main sub board DVD mechanism assembly Card wire M Support bracket CN401 (No.MA151)1-11 3.1.9Removing the switch

25、 board (See Figs. 12 to 14) Remove the front panel assembly. (1) From the back side of the front panel assembly, remove the five screws N attaching the rear cover. (See Fig.12.) (2) Release the ten joints i attaching the rear cover to the front panel assembly. (See Fig.13.) (3) Take out the switch b

26、oard while lifting the switch board from the front panel assembly little by little. (See Fig.14.) Reference: Remove the volume knob from the front side of the front panel assembly at the same time. Note: Do not lose the compression springs when removing the switch board. (See Fig.14.) Fig.12 Fig.13

27、Fig.14 N N Rear cover Front panel assembly N i i Rear cover i i Switch board Front panel assembly Compression spring Compression spring 1-12 (No.MA151) 3.2DVD mechanism assembly 3.2.1Removing the mechanism control board (See Fig.1) Caution: Before disconnecting the flexible wire extending from the D

28、VD pickup, solder the short-circuit point on the flexible wire using a 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 points on the flexible wire extending from the DVD pickup. (2) Disconnect the fl

29、exible wire from connector CN101 on the mechanism control board. (3) Disconnect the card wire from connector CN201 on the mechanism control board. (4) Disconnect the flexible wire from connector CN202 on the mechanism control board. (5) Unsolder two soldered points a on the mechanism control board a

30、nd remove the wire extending from the feed motor. (6) Remove the screw A attaching the lug wire. (7) Remove the two screws B and screw C attaching the mechanism control board. Caution: As the flexible wire to be connected to CN101, make sure to attach it to the mechanism control board using a double

31、 tape. After reassembling, unsolder the short-circuit points. Fig.1 Double tape Feed motor Mechanism control board CN202 CN101 B a C B CN201 Flexible wire Short-circuit points A Lug wire (No.MA151)1-13 3.2.2Removing the top cover (See Fig.2) (1) Remove the two screws D attaching the top cover on the

32、 back of the body. (2) 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 mechanism section (See Fig.2 to 4) Remove the top cover. (1) From the bottom of the body, remove the screw E attaching the lu

33、g wire. (See Fig.2.) (2) Remove the two screws F attaching the right and left stop- pers on the front side. (See Fig.2.) (3) Remove the two floating springs on the bottom of the body. (See Fig.3.) (4) Move the mechanism section upward and remove from the chassis frame. The three damper springs come

34、off from the dampers. (See Fig.4.) Caution: When reassembling, reattach the damper spring to the damper respectively and insert the three shafts on the bot- tom of the mechanism to the dampers. Before inserting the shaft to the dampers, apply IPA to the hole of damper. Fig.2 Fig.3 Fig.4 D Top cover

35、Stopper Stopper F F b c E Lug wire D Floating spring Mechanism section Damper (R) (Purple) Damper (F) (Black) Damper (F) (Black) Chassis frame Damper SP.(F) (Silver) Damper SP.(F) (Silver) Damper SP.(R) (Red) 1-14 (No.MA151) 3.2.4Removing the clamper unit (See Fig.5 to 7) Remove the top cover and th

36、e mechanism section. (1) Remove the clamper2 spring on the bottom of the mecha- nism section. (See Figs.5.and 6.) (2) Release the part d of the clamper spring from the bending part of the chassis base assembly. (See Fig.7.) (3) Move the clamper unit in the direction of the arrow and turn. Release th

37、e two joints e and f, then remove the clamper unit upward. (See Fig.6.) 3.2.5Reattaching the clamper unit (See Fig.5 to 9) (1) Attach the clamper spring to the clamper unit. (See Fig.8.) (2) Move the clamper unit to set the side joints e and f to each boss of the chassis base assembly. Make sure tha

38、t part g is inserted to the notch of the chassis base assembly. (See Figs.5 and 9.) (3) Move the part d of the clamper spring to the outside of the bending part of the chassis base assembly. (See Fig.7.) (4) Attach the clamper2 spring to the chassis base assembly. (See Figs.5 and 6.) Caution: When r

39、eattaching, temporarily hook the end of the clamper spring as shown in the figure to make the work easy. (See Fig.8.) Fig.5 Fig.6 Fig.7 Clamper unit Clamper spring Clamper2 spring g f e Chassis base assembly Clamper2 spring Chassis base assembly Clamper spring Chassis base assembly d (No.MA151)1-15

40、Fig.8 Fig.9 Clamper unit Clamper spring Notch g Clamper unit 1-16 (No.MA151) 3.2.6Removing the front unit (See Fig.10 to 12) Remove the top cover and the mechanism section. (1) Disconnect the flexible wire from connector CN202 on the mechanism control board at the bottom of the body. (See Fig.10.) (

41、2) Remove the screw G attaching the front unit on the top of the body. (See Fig.11.) (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 assembly. Then remove the front unit upward. (See Figs.11 and 12.) (4) Remove the two

42、 screws H attaching the switch board. (See Fig.12.) 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 the double tape. (See Figs.10 and 12.) Fig.10 Fig.11 Fig.12 Mechanism contro

43、l board Flexible wire CN202 Double tape G Front unit h h Front unit Switch board j G H i Double tape (No.MA151)1-17 3.2.7Removing the loading arm assembly (See Fig.13 , 14) Remove the top cover, the mechanism section and the front unit. (1) From the top of the body, move the loading arm assembly fro

44、m the front side upward, and release the bosses from the right and left joints k and m of the chassis base assem- bly. (2) Release the boss from notch n of the connect arm on the right side of the body, and release the boss from notch p of the slide cam assembly on the left side. Fig.13 Fig.14 k n m

45、 Loading arm assembly k n m Loading arm assembly p Side cam assembly Connect arm 1-18 (No.MA151) 3.2.8Removing the rod (L)(R)/roller assembly (See Fig.15 and 16) Remove the top cover, the mechanism section, the front unit and the loading arm assembly. (1) Release the rod (L) and (R) from the joints

46、q at the bottom of the loading arm assembly (See Fig.15.) (2) Remove the roller assembly from the loading arm assem- bly. (See Fig.16.) (3) Remove the two collars and washer from the roller assem- bly. (See Fig.16.) Caution: After attaching the loading arm assembly to the roller assem- bly, attach t

47、he rod (L) and (R). Attach the rods to the right and left collars of the roller. (See Fig.15.) When reattaching the rod (L) and (R) to the loading arm as- sembly, engage each joint as shown in Fig.15. As joints q of the rod (L), let the rod through q before reattaching it. Fig.15 Fig.16 q q q q q q

48、Rod(R) Loading arm assembly Rod(L) Collar Collar Rod(R)Rod(L) Roller assembly Washer Collar Collar Rod(L) Loading arm assembly Rod(R) (No.MA151)1-19 3.2.9Removing the DVD pickup assembly (See Fig.17 to 19) Remove the mechanism control board. (1) From the bottom of the body, turn the feed gear in the

49、 di- rection of the arrow to move the DVD pickup outwards. (See Fig.17.) (2) Remove the screw J attaching the thrust spring. (See Fig.17.) (3) Remove the DVD pickup assembly upward on the L.S.gear side and release from sub shaft at joint r. Move the lead screw of the DVD pickup assembly in the direction of the arrow to release from joint s. (See Fig.18.) Caution: When releasing the lead screw at joint s, the L.S.collar comes off at the end of the lead screw. When reas- sembling, reattach the L.S.collar to the l