Kenwood-RXD655-cs-sm 维修电路原理图.pdf
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1、70%MINI HiFi COMPONENT SYSTEMRXD-655/655-GR/655-H/655E/655E-GR 2001-6 PRINTED IN KOREAB51-5737-00 (K/K) 2308Panel assy *(A60-)Knob(VOLUME) (K27-2470-08)Dress ring (A21-3957-08)In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laser pr
2、od-uct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.* Refer to parts list on page 33. Panel(CD) (A60-2090-08)Front glass *(B10-)RXD-655E-H
3、/655L/655M/655M-HRXD-755/755E/755L/755MSERVICE MANUAL(XD-655855)*Refer to page 2 if you want to know system configuration.RadioFans.CN 收音机爱 好者资料库AM Loop Antenna(1)(T90-0879-08)“AA” size battery (UM/SUM-3,R6, HP-7 or similar)(2)Remote Control(1)(A70-1531-08): MXM3M5(A70-1537-08): ETE2FM Antenna(1)(T9
4、0-0883-08)Use to adapt the plug on thepower cord to the shape of thewall outlet.(Accessory only for regions whereuse is necessary.)AC Plug Adaptor (1)(E03-0115-05)RXD-655/7552CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES . 2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.4BLOCK DIAGRAM .9CIRCUIT DESCRIPTION.10
5、ADJUSTMENT.15PC BOARD . 16SCHEMATIC DIAGRAM . 23EXPLODED VIEW .31PARTS LIST.33SPECIFICATIONS .Back coverContentsAccessoriesCLASS 1LASER PRODUCTThe marking this product has beenclassified as Class 1. It means that thereis no danger of hazardous radiatiooutside the product.SYSTEMMAIN UNITDESTINATIONSP
6、EAKERXD-655RXD-655ETLS-N50SXD-655ERXD-655EE2 LS-N50SXD-655-GRRXD-655-GRET LS-N50S-GRXD-655E-GRRXD-655E-GRE2 LS-N50S-GRXD-655-HRXD-655-HELS-N50S-HXD-655E-HRXD-655E-HE2LS-N50S-HXD-655-HRXD-655M-HMLS-N50S-HXD-655RXD-655MMXLS-N50SXD-655(M3)RXD-655L(M3)M3LS-N50S(M3)XD-655(M5)RXD-655L(M5)M5LS-N50S(M3)XD-7
7、55RXD-755ETLS-N70SXD-755ERXD-755EE2 LS-N70SXD-755RXD-755MMXLS-N70SXD-755(M3)RXD-755L(M3)M3LS-N70S(M3)XD-755(M5)RXD-755L(M5)M5LS-N70S(M3)XD-855RXD-755ETLS-N90SXD-855ERXD-755EE2 LS-N90SXD-855RXD-755MMXLS-N90SXD-855(M3)RXD-755L(M3)M3LS-N90S(M3)XD-855(M5)RXD-755L(M5)M5LS-N90S(M3)SYSTEM CONFIGURATIONCAUT
8、IONSRadioFans.CN 收音机爱 好者资料库RXD-655/7553EXTERNAL VIEWANTENNAAM LOOPFM75 VIDEO/AUX+-LRRLSPEAKERSPin jack (E63-1219-08)Pin jack(AM)(E40-8933-08)Cabinet(TOP) (A02-3014-08)Lock terminal board(E70-0144-08)AC power cord bushing (J42-0338-08)AC power cord *(E30-)FM Antenna(E70-0145-08)* Refer to parts list
9、on page 33 . RXD-655/7554DISASSEMBLY FOR REPAIRCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ensureexcellent performance:1. Take cassette tape and compact disc out of the unit.2. Be sure to remove the power supply plug from
10、 the walloutlet before starting to disassemble the unit.3. Take off nylon bands or wire holders where they need beremoved when disassembling the unit. After servicingthe unit, be sure to rearrange the leads where they werebefore disassembling.4. Take suffcient care on static electricity of integrate
11、dcircuits and other circuits when servicing.Figure 7-2Figure 7-31Top Cabinet1. Screw . (A1) x47-12Side Panel1. Screw . (B1) x87-1(Left/right)3CD Player Unit/1. Turn on the power supply,7-2CD Tray Cover open the disc tray, take out the CD cover, and close. (Note 1)2. Screw . (C1) x13. Hook. (C2) x34.
12、 Hook. (C3) x25. Socket . (C4) x24Rear Panel1. Screw . (D1) x97-25Main PWB1. Screw . (E1) x17-22. Socket . (E2) x38-23. Flat Cable . (E3) x14. Tip Wire. (E4) x16Power Supply PWB1. Screw . (F1) x28-22. Socket . (F2) x13. Flat Wire. (F3) x18-37Front Panel1. Screw . (G1) x38-28Display PWB1. Screw .(H1)
13、 x98-32. Socket . (H2) x19Tape Mechanism1. Open the cassette holder.8-32. Screw. (J1) x510Headphones PWB1. Screw . (K1) x18-311Turntable1. Hook. (L1) x28-42. Cover . (L2) x112Disc Tray1. Turn fully the lock lever in the7-3arrow direction.2.While holding the lock lever,rotate8-1the cam gear until the
14、 cam gearrib engages with the clamp lever.3. Push the slide holder backward to8-5engage the claw with the grooveand remove it in the directionof the arrow. .(M1) x613CD Servo PWB1. Screw . (N1) x18-6(Note 2)2. Hook. (N2) x23. Socket . (N3) x414CD Mechanism1. Hook. (P1) x29-12. Hook. (P2) x315Loading
15、 Motor PWB1. Hook. (Q1) x59-1STEPREMOVALPROCEDUREFIGUREFigure 7-1(B1)x43x10mm(B1)x23x10mmRearPanel(B1)x23x10mmSide Panel(Right)Side Panel(Left)(A1)x23x12mm(A1)x23x12mmTop Cabinet(E1)x13x10mm(C3)x1(D1)x23x10mm(C1)x13x10mm(D1)x73x10mmCD PlayerUnitDC Tray CoverRearPanelPull(C3) x1(C4)x2(C2) x3112Main P
16、WBCD ServoPWBNote 1:How to open the changer manually. (Fig. 7-3)1. In this state, turn fully the lock lever in the arrow directionthrough the hole on the loading chassis bottom.2. While holding the lock lever, rotate the cam gear anticlockwiseuntil the cam gear rib engages with the clamp lever. (Fig
17、. 8-1)3. After that, push forward the CD slide holder.Note 2:1. After removing the connector for the optical pickup from theconnector, wrap the conductive aluminium foil around thefront end of the connector so as to protect the optical pickupfrom electrostatic damage.Note 3:1. Be careful not to brea
18、k the claw of the CD mechanism.2. When fining back the cam gear assembly, let it lock by frontmovement.LOCK LEVERRXD-655/7555DISASSEMBLY FOR REPAIRFigure 8-1Figure 8-2Figure 8-3Figure 8-4Figure 8-5Figure 8-6CLAMP LEVERCAM GEAR RIB(F1)x13x6mm(G1)x33x10mm(F1)x13x10mm(F2)x1(E3)x1(E4)x1(E2)x2Main PWB(E2
19、)x1PowerSupplyPWBPowerSupplyPWB(H1)x93x10mm(H2)x1(J1)x53x10mm(K1)x13x10mm(F3)x1Display PWBHeadphonesPWBOpenCassetteHolderTapeMechanismTurntableDisc Tray(L2) x1CD Player Unit(L1) x2132(M1) x3(M1) x3(N3) x2(N2) x2(N3) x2CD ServoPWBCD PlayerBase(N1)x13x8mmRXD-655/7556DISASSEMBLY FOR REPAIRFigure 9-1(P2
20、) x3(P1) x1(Q1) x5(P1) x1LoadingMotorPWBCDMechanismREMOVING AND REINSTALLING THE MAIN PARTSTAPE MECHANISM SECTIONPerform steps 1 to 7 and 9 of the disassembly method toremove the tape mechanism.How to remove the record/playback and eraseheads (TAPE 2) (See Fig. 10-1)1. When you remove the screw (A1)
21、 x 2 pcs., the recording/playback head and three-dimensional head of the erasinghead can be removesd.How to remove the playback head (TAPE 1)(See Fig. 10-2)1. When you remove the screw (B1) x 2 pcs., the playbackhead.How to remove the pinch roller (TAPE 1/2)(See Fig. 10-3)1. Carefully push the insid
22、e claw to remove it. The pinch rollerpawl in the direction of the arrow , and remove the pinchroller (C1) upwards.Note:When installing the pinch roller, pay attention to the springmounting position.How to remove the belt (TAPE 1) (See Fig. 10-4)1. Remove the main belt (D1) x 1 pc., from the motor si
23、de.2. Remove the FF/REW belt (D2) x 1 pc.Figure 10-1Figure 10-2Figure 10-3(A1)x22x9mmTAPE2Record/PlaybackHeadErase Head(B1)x22x9mmTAPE1PlaybackHeadPinch Roller(C1)x1STEP1STEP2RXD-655/7557DISASSEMBLY FOR REPAIRHow to remove the pickup (See Fig. 11-2)1. Remove the stop washer (B1) x 1 pc., to remove t
24、he gear(B2).2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).3. Remove the pickup.Figure 11-2CD MECHANISM SECTIONPerform steps 1, 2, 3, 11 and 14 of the disassembly methodto remove the CD mechanism.How to remove the loading motor(See Fig. 11-1)1. Bend the hooks (A1) x 5 pcs., to remove t
25、he loading motor.Figure 11-1NoteAfter removing the connector for the optical pickup from theconnector wrap the conductive aluminium foil around the frontend of connector so as to protect the optical pickup fromelectrostatic damage.(A1)x2(A1)x1Loading MoterCD Base(A1)x2(B3) x2 2.6 x6mmShaft(B4) x1Sto
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