Kenwood-RXDM47MP-cs-sm 电路图 维修手册.pdf

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1、COMPACT Hi-Fi COMPONENT SYSTEM RXD-M47MP SERVICE MANUAL (HM-437MP) 2004-10 PRINTED IN KOREA B51-5934-00 (K/K) 715 70% In compliance with Federal Regulations, following are repro- duction of labels on, or inside the product relating to laser product safety. KENWOOD Corp. certifies this equipment conf

2、orms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM. Caution : No connection of ground line if disassemble the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others.

3、 CD cover assy (F07-2030-08) Phone jack (E63-1365-08) Power knob (K29-8426-08) Display/Rec. knob (K29-8428-08) Search knob (K29-8430-08) Cass lid assy (A53-2455-08) Front cabinet (A60-2427-08) Volume knob (K29-8429-08) CD/Tuner/Tape knob (K29-8431-08) EQ/Bass knob (K29-8427-08) RadioFans.CN 收音机爱 好者资

4、料库 CONTENTS / ACCESSORIES / CAUTIONS.2 EXTERNAL VIEW.3 ADJUSTMENT.4 PC BOARD .9 SCHEMATIC DIAGRAM .13 EXPLODED VIEW .19 SPECIFICATIONS.BACK COVER Remote control unit (1) (A70-1692-08) AM loop antenna (1) (T90-0908-08) ANT TERMI CVR (F07-2029-08) Batteries (R6/AA) (2) () Plug in the AC power cord to

5、the wall out- let, and within 5 seconds, press and hold down the button and press CD button. The marking of products using lasers The marking this product has been classified as Class 1 . It means that there is no danger of hazardous radiation out- side the product. Location: Bottom CLASS 1 LASER PR

6、ODUCT LASER KLASSE 1 APPAREIL A LASER DE CLASSE 1 LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT Resetting the Microcomputer The microcomputer may malfunction (unit can- not be operated, or shows an erroneous dis- play)if the power cord is unplugged while the power is ON, or due to some other external fac

7、tor. If this happens, execute the following procedure to reset the microcomputer and re- turn the unit to its normal operating condition. Please note that resetting the microcomputer will clear the contents of the memory and return the unit to the state it was in when it left the factory. RXD-M47MP

8、2 CONTENTS / ACCESSORIES / CAUTIONS Accessories Cautions System configuration SYSTEMRECEIVERSPEAKER HM-437MPRXD-M47MPLS-M47 Contents RadioFans.CN 收音机爱 好者资料库 RXD-M47MP 3 EXTERNAL VIEW Rear cabinet (A80-4503-08) Antenna cover (F07-2029-08) Speaker terminal (E70-0196-08) AC power cord (E30-7343-08) Rad

9、ioFans.CN 收音机爱 好者资料库 RXD-M47MP 4 ADJUSTMENT SERVICE ADJUSTMENT Lubrication The mechanical parts are factory coated with a thin coat of light grease and should not require further lubrication. If a light grease is applied, be careful not to get any grease on the play/record head or erase head, hubs,

10、pulleys, tapes reels, drive belts, or switches. Use a good lubricant such as Silicon Lube G322L or Lubricate. Service Check Before aligning the mechanism, wipe off any accumulated dirt with denatured alcohol. Wipe around parts where the tape contacts and around all rotating parts. Drive belts are sp

11、ecially processed. Do not clean them with alcohol. Mechanical Torque Use a cassette type torque gauge and check the tape mechanism. Take-up torque 35 to 70 g-cm Rewind torque 50 g-cm min. Fast forward torque 50 g-cm min. Pinch Wheel Pressure No adjustment to the pinch roller spring is necessary. It

12、should be sufficient to give at least 40 g-cm pull force. Tape Head Servicing Each time the unit is serviced, the face of all heads should be thoroughly cleaned with denatured alcohol or commercial head cleaning solution. The playback head should be demagnetized with a commercial demagnetizer. Accum

13、ulation of tape oxide during normal operations can cause problems, including loss of high frequencies and wow and flutter. Erase Head The erase head is properly aligned when the tape rides directly between the tape guide on the head without crinkling the tape. RXD-M47MP 5 ADJUSTMENT Play/Record and

14、Playback Head Azimuth Adjustment To adjust the play/record and playback head azimuth screw: 1. Connect two (2) VTVMs and a dual trace scope to the stereo headphone jack (as shown) with a 32 ohm dummy load. (See Figure 1.) VTVMVTVM DUMMY LOAD JK801 SCOPE CH1 CH2 Figure 1. Azimuth Adjustment 2. Insert

15、 a 10 kHz test tape (Teac MTT-1141V or Equivalent) into the tape mechanism and play it back. 3. While playing back the test tape, slowly turn the azimuth adjusting screw until the amplitude of both channel output waveforms is maximum and in phase. (See Figure 2.) 4. Secure the azimuth screw in place

16、 with glue or paint after making the adjustment. Figure 2. Head Output Signal RXD-M47MP 6 ADJUSTMENT Tape Speed Adjustment 1. Set the function switch to TAPE. 2. Connect a frequency counter with a 32 ohm dummy load to the stereo headphone jack. (See Figure 3.) FREQUENCY COUNTER DUMMY LOAD JK801 Figu

17、re 3. Tape Speed Adjustment 3. Insert and play back a 3 kHz test tape (Teac MTT-111 or Equivalent) into the tape mechanism. 4. Insert an insulated alignment tool and adjust the tape speed potentiometer (MOTOR) until the frequency counter indicates 2940 Hz to 3090 Hz. Bias Oscillator Frequency and Le

18、vel Adjustment 1. Set the function switch to TAPE and the record and play tape mechanism to RECORD. 2. Connect a VTVM and frequency counter to test point R/P HEAD. 3. Adjust bias oscillator coil T360 until the frequency counter indicates 81 kHz 0.5 kHz. 4. Confirm the record head voltage equal to: 6

19、-12V. 5. Confirm the erase head voltage equal to: 15-24V. RXD-M47MP 7 ADJUSTMENT TUNER ALIGNMENT PROCEDURE Equipment needed: 1. AM Signal generator 2. FM Signal generator 3. DC Voltage meter 4. Oscilloscope 5. Output meter (VTVM) AM Alignment Step S/G Frequency Dial SettingIndicator Adjust Remarks 1

20、 450 kHz (1 kHz 30% mod.) 612 kHz Connect oscilloscope or VTVM to speaker jack T201 Adjust until maximum output 2 531 kHz (1 kHz 30% mod.) Low end Connect DC voltage meter to test point Vt and ground T202 Adjust until Vt equal to 1.5 0.05V 3 1602 kHz (1 kHz 30% mod.) High end Same as step 2 Confirm

21、Vt: 6.58.5V 4 612 kHz (1 kHz 30% mod.) 612 kHz Same as step 1 T203 Maximum output 5 1404 kHz (1 kHz 30% mod.) 1404 kHz Same as step 1 VC201 Maximum output 6 Repeat steps 4 and 5 to minimize tracking error 7 999 kHz (1 kHz 30%mod.) 999 kHz Same as step 1 Offset is less than 6 dB. 60 cm AM SIGNAL GENE

22、RATOR AM LOOP ANT AM LOOP ANTENNA DUMMY LOAD TEST UNIT VTVM R-OUT L-OUT GND Figure 4. AM IF/RF Tracking TEST UNIT GROUND METER Figure 5. AM Band Frequency Coverage Alignment Vt DC RXD-M47MP 8 ADJUSTMENT FM Alignment: Figure 6. FM Band Frequency Coverage Alignment Connect FM S/G to ANT inputs (mod 1

23、kHz 22.5kHz dev.) Step S/G Frequency Dial Setting Indicator Adjust Remarks 1 87.5 MHz Low end Connect DC voltage meter to test point Vt and ground L203 Adjust until Vt equal to: 1.5 0.05V 2 108 MHz High end Same as step 1 Confirm Vt: 7-9V 3 90.1 MHz 90.1 MHz Connect oscilloscope or VT/VM to speaker

24、jack L204 Adjust until Maximum output 4 106.1 MHz 106.1 MHz Same as step 3 VC202 Adjust until maximum output 5 Repeat steps 3 and 4 to minimize tracking error. FM GENERATOR DUMMY ANTENNA TP1 TEST UNIT OSCILLOSCOPE DUMMY LOAD VTVM R-OUT L-OUT GND Figure 7. FM Band/Tracking GROUND METER Vt DC TEST UNI

25、T 9 ACEBD 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view) U101 Q101 D107 Q106 Q104 LCD101 CN107 CN109 CN104 CN105 D102 D101 Q103 Q105 CN108 CN103 D103 CN101CN102 CN106 DISPLAY CN110 LED182 LED181 LED180 SW107 FRONT KEY D106 Q182

26、Q181 Q180 SW113 SW102 SW101 CN112 SW100 SW108SW103 SW110SW111 SW106 CN111 SW104SW109 SW105 SW112 D105 D104 U102 SW114SW115SW116SW117SW118 CN113 R143 R174 R144 R145 R101 R104 C104 R100 C108 R107 R135 R142 R140 R141 R139 R137 R138 R136 C121 C122 C107 1 100 50 51 8180 3031 C110 R4 R110 R109 R108 R103 C

27、102 C115 R120 R121 C113 R119 R118 R117 C112 R115 R125 R1 R149 R113 R112 R148 R123 R124 C111 R3 R128 R129 R130 R131 R132 R133 R134 C116 C119 C105 C016 R2 R114 C114 R5 C120 J6 13 J21 R116 R122 J22 J18 R102 J1 J19 J16 J20 J23 J24 J25 J2 J3 J5 J9 J10 R147 J7 X102 X101 C101 C103 J8 C109 J15 J12 J14 J17 J

28、13 R146 L101 J4 R111 J11 40 110 18 1851 13 13 9161 1 EB BE BE ECEC R150 R160 R169 R170 R171 R172 R151 R152R153R154R155 R168 R156 R164 R165 R167 R166 R159 R163 R162R157 R158 R161 C118 C117 R180 R181 R182 R186 BE BEBE C183 R185 R173 R183 R188 R184 POWER RDS/ DISPLAY C180 TIME SETTIMER ON/OFF REC VOLUM

29、E UP TAPE 1 1513 IGO 6 VOLUME DOWN TUNER /BAND CD EQ/BASSREPEATPROG.PRESETDOWNPRESETUP 61 TOP KEY 10 FGIHJ 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD CN705 U703 U702 CN701 CN707 CN706 CN703 CN700 CN704 Q707 Q703 Q702 Q706 Q704 Q701 Q705 U705 U700

30、 U701 U706 U704 MP3 (SIDE A) MP3 (SIDE B) ZD703 ZD702 ZD701 L703 L707 L701 L702 L706 X701 L704 C747C779 C709C710 GND1 C734 C754 C713 C707 C735 C733 C705C770C722C723 C740 GNDC782 C780 RF C724 C704C702 C715C711 C708 C720C719C752 L708 L709 C768 C706 L710 C700 L705 R768 R769 R770 R771 R772 R760 R761 R76

31、2 R763 R764 R765 R766 R767 C766 C703 C701 R708 R706 R707 R750 C767 R774 R775 R776 R777 R778 R779 R780 R787 R788 R791 R792 C788 C791 R717 R759 C716 R790 R793 C778 GND GND1 R748 R743 R747 R745 R739 R736 R737 R746 R744 R735 R785 R784 R782 C775 R781 R783 R718 R703 R704 R716 C750 R701 R741 C758 C756 R749

32、 C745 C755 R751 C760 R773 R801 R720 C787 C758 C784 C786 C757 C726C730 C725 C771 C772 C773 C774 C776 C743C728 R727 C727 R721 C742 R726 C731 C732 C789 C729 R802 R734 C764 R757 R758 C761 R755 C762 R754 C765 R753 R752 C759 C763 R719 R800 R728 R795 R796 R798 R740 R797 C721 R756 R803 R804 C769 C712 R711 C

33、714 C717 C718C783 C790 C753 R722 R723 R725C744 R724C749 C746 R738 R789 C737 C739 C741 C748 R786 R730 R729 C736 R731 R733 C738 R732 C781 R742 C751 R702 10 16 15 2 1 1 12 24 13 61 2 1 1 30 31 50 51 8081 100 15 1 16 30 1 16 48 49 64 33 17 32 1 16 32 17 17 148 3 1 3 O GI 1 1 31 BE BE BE BE BE BE BE 2 KM

34、OQSLNPRT 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view) 11 12 MAIN HEADPHONE U601 Q801 Q802 Q805 Q601 Q203 Q208 Q202 Q602 U201 Q206Q205 Q201 Q204 U250 Q207 U260 Q263 Q261 Q260 Q262 Q280 Q252 Q251 Q316 Q315 Q305 Q306 Q301 Q303 Q302

35、 Q304 Q317 Q312 Q308 CN602 Q313 Q307 Q310 Q311 Q309 Q360 Q361 CN806 CN201 FM ANT AM ANT VD204 VD205 CN801 CN802 D802 Q803 CN601 D302 Q281 U301 CN301 CN302 VD201 CN260 D301 D303 U802 L CN803 CN805 ZD802 CN804 D803 ZD801 Q806 Q804 CN202 U801 JK801 D202 VD203 VD202 D201 D203 D204 R SPEAKERS ZD901 Q902

36、D907 D904 D902 D901 D903 D905 CN901 D906 POWER FMVT AMVT C220 C236 C2 C293 J10 L C209 C210 C211C212 R213R214 C215C216 R211R212 R247R248 C247 TP12 1 112 2413 14 2815 R807 C825 C823 R809 R810 C824 C826 R808 C805 R805 R801 R813 R313 R326 R341 R333 R314 R325 R334 R337 R819 R815 C829 C817 C834 C822 R812

37、C322 R802 R806 C806 R814 C248 C205 C273 TP2 C265 R216 R215 C217 R280 C255 TP6 C253 1 1120 101 8 169 R259 R265 TP1 C224 R1 R209 R237 C213 R227 R233 R204 C233 TP3 R244 L202 TP4 C202 TP5 C245 C201 C855 C856 C232 R231 C228 C225 R293 C229 R229 C227 R203 R202 C222 C223 C219 C204 C231 C230 C239 C203 C234 L

38、201 21 C200 C241 C828 C827R823 R824 R210 C214 C237C226 R236 C208 R811 C821 R217 C218 R208 R219 R221 R234 R207 R285 R205 R609 C613 R607 R611 R605 C609 C284 R286 R284 R256 C256 C258 C259 R310 R339 R309 R347 C337 R327 R323 C311 C312 C305 R328 R348 C338 C326 C310 R321 C626 C331 C624 C628 C629 C622 C618

39、C614 R608 R612 R606 C610 C616 C612 C608 C606 C604 C602 C282 C632 R624 R622 C332 R803 R322 R610 R804 C801 C621 C617 C615 C611 C607 C605 C603 C281 C601 C631 R623 R621 R320 C340 R312 C336 C350 R316 L302 C320 C302 C301 R311 C319C335 R315 C324 R304 R336 TP10 TP9 R822 R818 R817 C333 R335 R330 R331 R346 R3

40、38R332 R340 C316 C360 R302 R318 R317C323 R361 C364 R360 R301 R303 C308 R306 R307 C339 R308 R319 R305 C307 C309 TP7 C321 L301 TP11 MGND C365 R364 C362 R362 C361 C363 R365 C366 TP13 TP8 R220 R206 R201 R200 C221 R223 R239 R218 C294 R235 C271 C270 R270 R269 C267 R268 R267 C268 R271 C261 C260 C274 C264 C

41、262 C287 R242 C235 C242 R238 C251 R254 C252 R261 C286 R262 C285 R263 R288 R277 R297 C206 R226 EB EB EBEB EB EB EBEB EB EB EB EB EB EB EB EB EBE 1 8 16 9 B EB EB EB EB EBEBEB EBEB EB EBEB E OGI B EBEB EB EB EB CE EB EB 15 L205 CF201 J9 15 J31 J22 J26 R613 R600 J36 R830 J34 J33 J39 T360 2 J27 1 15 J30

42、 C820 J35 J32 1 13 4 R816 19 CE CF202 CF203 C207 R222 R224 J14 R272 J13 R274 R275 R276 J12 J11 J3 J24 R249 R250 J38 J23 R329 J28 R255 R258 C257 13 R243 L806 L807 L808 T203 J4 VC201 C238T202 GND2 C240 R246 C272 J2 J1 R266 J6 R225 J8 R281 R279 R273 C290 C254 X250 1 C263 OSC1 GND1 6 X260 C266 C269 R257

43、 R283 R232 J15 0SC2 R228 J5 L203 R230 J7 L204 BPF201 L208 T201 VC202 L801 C813 L802 C812 C809 C803 C818 C623 C619 C625 C620 C804 C810 L809 L810 ICP R821 14 J16 J17 J20 R354 J29 J25 C304 C315 C303 J19 C314 C325 C317C313 J21 J18 R353 R324 C830 R820 C831 C328 C329 C327 C306 C832 C627 C833 BEBE J37 C814

44、 C819 L804 L803 C816 C815 112 TIE C811 C902 C901 R903 R902 R901 CE C903 C904 C907 C908 F901 RY901 C905 C906 BLACKRED2 14 RED1 AC1 AC2 L901 T901 P2P1 ABDFHJCEGI 2 1 3 5 7 4 6 RXD-M47MP MP31314 GND LINE SIGNAL LINE B LINE CN704 Q705 CN705 M M Q704 Q701 CN706 Q703 3/3 DISPLAY- CN106 2/3 CN700MAIN- CN60

45、2 CN701 MAIN- CN805 2/3 ZD703 Q702 ZD702 Q707 ZD701 Q706 CN703 DISPLAY- 3/3 CN105 CD MECHANISM SRAM (SDJ) ZD702,703MTZJ3.3B ZD701 : MTZJ3.9B: Q7058550: 8050 Q701-704,706,707 : MC74HC14ADU706: AS7C31024-15U705: TA2153FNU704: TA2092NU703: TC9462FU701: TC94A02F-007U700: NJM7805FAU702: CD DOOR CN707 To

46、SWITCH C776 R785 2200.1 +B 8 7 6 5 3 2 4 1 V-CEN 1 4 COM 2 E 3 R748 47K D A 5 B 6 R747 47K 47K R745 47K R746 C 8 7 R744 47K F R743 47K 11 12 9 10 GND LD 9 10 100 VR PD 11 12 151511 13 14 F+ T+ 13 149 4 16 T- 162 F- R739 10K R737 10K R736 10K R735 10K FEN TEO 26 6 3 1 2 5 4 RFN2 VCC GMAD RFGC RFO GND

47、 TPI FNI FPI GVSW AGCIN 28 30 29 27 8 7 10 9 12 11 13 22 LDO RF RPIN TNI MDI RFGO SEL RFCT PKC 24 25 23 TEB 2VRO RFRP BTC TEN VRO SEB 20 21 18 19 15 14 SBAD FEO 16 17 4 38 24 P2 VREF HSSW PDO TMAX TMAXS ZDET 29 30 28 27 26 25 VCOREF LPFN LPFO P VREF 31 33 32 RFI SLCO VCOF AVSS1 36 35 34 37 VSS2 DATA

48、 SFSY TESIOO VDD2 MONIT COFS SPDA SPCK SBSY BCK VSS1 LRCK CLCK VDD1 SBOK MBOV A OUT D OUT 20 23 22 21 17 19 18 16 15 12 14 13 11 10 IPF 7 9 8 6 5 56 48 FEI RFCT RFZI AVDD1 RFRP 39 42 41 40 FOO TEI TEZI SBAD TSIN 45 44 43 46 47 TRO VREF 49 50 RFGC FMO TEBC DMO FVO 51 52 53 54 55 IO2 FLGA 2VREF SEL FLGB FLGC FLGD VDD3 VSS3 IO0 IO1 61 57 58 59 60 64 62 63 65 66 TESIN DM OUT IO3 CKSE DACT TRESIO1 VSS4 PXI PXO VDD4 69 67 68 70 71 74 72 73 75 76 BUS3 UHSO EMPH HSO TEST0 3 2 1 TSMOD