Jvc-KDS-6060-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.MA028 2003/11 CD RECEIVER MA028200311 KD-S6060 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFI

2、C SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 4ADJUST

3、MENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

4、-25 Area suffix E - Continental Europe COMPACT DIGITAL AUDIO SEL LOUD DISP SSM SCMMODE 791012RND11RPT8MO AM CD FM RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA028) SPECIFICATION Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront45 watts per channel

5、 Rear45 watts per channel Continuous Power Output (RMS)Front17 watts per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear17 watts 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) Tone Co

6、ntrol RangeBass10 dB at 100 Hz Treble10 dB at 10 kHz Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Line-Out Level/Impedance2.0 V/20 k load (full scale) Output Impedance1 k TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz AM(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM Tu

7、nerUsable 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 Separation30 dB Capture Ratio1.5 dB MW TunerSensitivity20 V Selectivity35 dB LW TunerSensitivity50 V CD PLAYER SECTION Ty

8、peCompact disc player Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of channels2 channels (stereo) Frequency Response5 Hz to 20 000 Hz Dynamic Range90 dB Signal-to-Noise Ratio95 dB Wow and FlutterLess than measurable limit GENERAL Power RequirementOperating VoltageDC

9、 14.4 volts (11 volts to 16 volts allowance) Allowable Working Temperature0C to +40C Grounding SystemNegative ground Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 150 mm Panel Size (approx.)188 mm 58 mm 11 mm Mass (approx.)1.3 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA028)

10、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 adjus

11、tment or operation check. RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA028) 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 preven

12、t 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 CD players. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the wor

13、kbench 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 optica

14、l 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 of the

15、 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) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the fle

16、xible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible ca

17、ble carefully as it may break when subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 1.4Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the CD pickup unit. Apply solder to t

18、he short land before the flexible wire is disconnected from the connector on the CD pickup unit. (If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the fl

19、exible wire. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Pickup Short-circuit point (Soldering) Flexible wire (No.MA028)1-5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MA028) SECTIO

20、N 3 DISASSEMBLY 3.1Main body 3.1.1Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Fig.1 3.1.2Removing the bottom cover (See Fig.2) (1) Turn the main body up side down. (2) Insert a screw

21、driver under the joints to release the two joints a on the left side, two joints b on the right side and joint c on the back side of the main body, then remove the bottom cover from the main body. CAUTION: When releasing the joints using a screwdriver, do not damage the main board. Fig.2 3.1.3Removi

22、ng the front chassis assembly (See Fig.3) Prior to performing the following procedures, remove the front panel assembly and bottom cover. (1) Remove the screw A on the left side of the main body. (2) Release the two joints d and two joints e on the both sides of the main body, then remove the front

23、chassis assembly toward the front. Fig.3 Front panel assembly Detach button Bottom cover Joint b Joint b Joint c Joint a Joint a Joint d Front chassis A Joint e Joint dJoint e (No.MA028)1-7 3.1.4Removing the side panel (See Fig.4) Prior to performing the following procedure, remove the front panel a

24、ssembly as required. (1) Remove the screw B and two screws C attaching the heat sink on the left side of the main body, and remove the side panel. Fig.4 3.1.5Removing the rear bracket (See Fig.5) Prior to performing the following procedure, remove the bottom cover. (1) Remove the three screws D, thr

25、ee screws E and two screws F attaching the rear bracket on the back side of the main body. (2) Remove the rear bracket. Fig.5 3.1.6Removing the main board (See Fig.6) Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, side panel, bottom cover and re

26、ar bracket. (1) Remove the two screws G attaching the main board. (2) Disconnect the connector CN501 and remove the main board. Fig.6 Side panel CBC EF D D E Rear bracket F Main board assembly G G CN501 1-8 (No.MA028) 3.1.7Removing the CD mechanism assembly (See Fig.7) Prior to performing the follow

27、ing procedure, remove the front panel assembly, front chassis assembly, side panel, bottom cover, rear bracket, main board and CD mechanism board. (1) Remove the three screws H attaching the top chassis. (2) Take out the CD mechanism assembly. Fig.7 3.1.8Removing the front board (See Figs.8 to 10) P

28、rior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws J on the back side of the front pan- el assembly. (See Fig.8) (2) Release the eleven joints f. (See Fig.9) (3) Take out the front board. (See Fig.10) Fig.8 Fig.9 Fig.10 H H CD mechanism assembly T

29、op chassis J JJ Joints f Joint fJoints f Joints f Joints f Joint f Front board Front panel assembly (No.MA028)1-9 3.2CD Mechanism Assembly 3.2.1Removing the top cover (See Figs.1 and 2) (1) Remove the two screws A on the both side of the body. (2) Lift the front side of the top cover and move the to

30、p cover backward to release the two joints a. Fig.1 Fig.2 A A A Joints aTop cover Joints a Top cover 1-10 (No.MA028) 3.2.2Removing the connector board (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of thi

31、s in- struction may cause damage of the pickup. (1) Remove the screw B fixing the connector board. (2) Solder the short-circuit point on the connector board. (3) Disconnect the flexible wire from the pickup. (4) Move the connector board in the direction of the arrow to release the two joints b. (5)

32、Unsolder the wire on the connector board if necessary. CAUTION: Unsolder the short-circuit point after reassembling. Fig.3 Fig.4 Fig.5 B Connector board PickupShort-circuit point Joints b Wires Pickup Short-circuit point (Soldering) Flexible wire B Flexible wire Connector board Frame (No.MA028)1-11

33、3.2.3Removing the DET switch (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Unsolder the DET switch wire if necessary. Fig.6 Fig.7 Connector board DET switch Pickup DET switch Tab c Tab c DET switch wire Feed sw. holder 1-12 (No.MA028) 3.2.4Removing

34、the chassis unit (See Figs.8 and 9) Prior to performing the following procedure, remove the top cover and connector board. (1) Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame. CAUTION: The shape of the suspension spring (L) and (R) are dif- ferent. Handle them w

35、ith care. When reassembling, make sure that the three shafts on the underside of the chassis unit are inserted to the dampers certainly. Fig.8 Fig.9 Suspension spring (L) Suspension spring (L) Suspension spring (R) Suspension spring (R) Chassis unit Frame Chassis unit Frame Shafts Shaft Damper Dampe

36、r Damper (No.MA028)1-13 3.2.5Removing the clamper assembly (See Figs.10 and 11) Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. (2) Move the clamper assembly in the direction of the arrow to release the two joints d. Fig.10 Fig.11 Clamper arm spr

37、ing Chassis rivet assembly Joint d Joint d Clamper assembly Clamper arm spring Clamper assembly Joint d Joint d Chassis rivet assembly 1-14 (No.MA028) 3.2.6Removing the loading / feed motor assembly (See Figs.12 and 13) Prior to performing the following procedure, remove the top cover, connector boa

38、rd and chassis unit. (1) Remove the screw C and move the loading / feed motor assembly in the direction of the arrow to remove it from the chassis rivet assembly. (2) Disconnect the wire from the loading / feed motor assembly if necessary. CAUTION: When reassembling, connect the wire from the loadin

39、g / feed motor assembly to the flame as shown in Fig.12. Fig.12 Fig.13 Loading / feed motor assembly Loading / feed motor assembly C (No.MA028)1-15 3.2.7Removing the pickup unit (See Figs.14 to 18) Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (

40、1) Remove the screw D and pull out the pu. shaft holder from the pu. shaft. (2) Remove the screw E attaching the feed sw. holder. (3) Move the part e of the pickup unit upward with the pu. shaft and the feed sw. holder, then release the joint f of the feed sw. holder in the direction of the arrow. T

41、he joint g of the pickup unit and the feed rack is released, and the feed sw. holder comes off. (4) Remove the pu. shaft from the pickup unit. (5) Remove the screw F attaching the feed rack to the pickup unit. 3.2.8Reattaching the pickup unit (See Figs.14 to 17) (1) Reattach the feed rack to the pic

42、kup unit using the screw F. (2) Reattach the feed sw. holder to the feed rack while setting the joint g to the slot of the feed rack and setting the part f of the feed rack to the switch of the feed sw. holder correct- ly. (3) As the feed sw. holder is temporarily attached to the pickup unit, set to

43、 the gear of the joint g and to the bending part of the chassis (joint h) at a time. CAUTION: Make sure that the part i on the underside of the feed rack is certainly inserted to the slot j of the change lock lever. (4) Reattach the feed sw. holder using the screw E. (5) Reattach the pu. shaft to th

44、e pickup unit. Reattach the pu. shaft holder to the pu. shaft using the screw D. Fig.14 Fig.15 Fig.16 Fig.17 Fig.18 Feed sw. holder E D Joint g Joint f Part e Pickup unit Pu. shaft holder Pu. shaft Feed sw. holder Part e Pickup unit Feed rack Feed sw. holder D E Joint f Pu. shaft holder Pu. shaft Pi

45、ckup unit Joint h Part i Slot j Joint g FFeed rack Pickup unit Joint f Joint g Feed rack Pickup unit Feed sw. holder 1-16 (No.MA028) 3.2.9Removing the trigger arm (See Figs.19 and 20) Prior to performing the following procedure, remove the top cover, connector board and clamper unit. (1) Turn the tr

46、igger arm in the direction of the arrow to release the joint k and pull out upward. CAUTION: When reassembling, insert the part m and n of the trigger arm into the part p and q at the slot of the chassis rivet assembly respectively and join the joint k at a time. Fig.19 Fig.20 3.2.10 Removing the to

47、p plate assembly (See Fig.21) Prior to performing the following procedure, remove the top cover, connector board, chassis unit, and clamper assembly. (1) Remove the screw H. (2) Move the top plate assembly in the direction of the arrow to release the two joints r. (3) Unsolder the wire marked s if n

48、ecessary. Fig.21 Joint k Trigger arm Chassis rivet assembly Trigger arm Chassis rivet assembly Part p Part m Part n Part q Top plate assembly Joints r s H (No.MA028)1-17 3.2.11 Removing the mode sw. / select lock arm (See Figs.22 and 23) Prior to performing the following procedure, remove the top pl

49、ate assembly. (1) Bring up the mode sw. to release from the link plate (joint t) and turn in the direction of the arrow to release the joint u. (2) Unsolder the wire of the mode sw. marked s if necessary. (3) Turn the select lock arm in the direction of the arrow to re- lease the two joints v. (4) The select lock arm spring comes off the select lock arm at the same time. Fig.22 Fig.23 Mode sw. Select lock arm Joint tLink plate Joint u s Top plate Top plate Select lock arm Select lock arm spring Select lock arm Link plate Joint