Kenwood RXD-M37-L Service Manual Download

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PC BOARD

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Component side view

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Refer to the schematic diagram for the value of resistors and capacitors.

U703

U701

Q701

Q703

Q705

Q702

U702

D701

CN705

CN702

CN706

CN703

Q704

CN704

CD SERVO

CN701

D702

C735

R722

R723

R725

R726

R727

C734

C740

J23

2 1

100

C751

C719

X701

C723

J39

C705

C704

C790

C722

J10

J17

J15

J12

J11

C710

C713

R711

C752

L703

L704

J16

J18

J19

J24

C750

L706

J28

R748

J20

J21

J22

J32

J33

J34

J35

J36

J27

R700

R701

R705

R702

R762

R761

R738

R724

R734

R736

C756

R741

C725

C743

C758

C742

R721

C728

R731

R730

C712

C759

C714

R716

R763

R729

R733

R732

C736

C738

C703

C715

C729

C745

C741

C755

C760

C749

R737

R740

C707

R704

R703

C706

R707

C711

C701

C708

R706

C717

C727

C757

J702

R742

C720

GND

C718

C733

R717

TE0

FE0

VREF

C716

C754

J703

R743

J701

R757
R744
R758
R745
R746
R760
R759
R747

R739

R728

RF0

C744

C753

C732

C739
C737

C709

C726

C730

C731

J704

C702

TE03

C721

C748

R735

C747

C746

J31

C724

J29

J38

CM-CHOKE

J26

J30

J25

L705

J13

J14

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

Summary of Contents for RXD-M37-L

Page 1: ...abels on or inside the product relating to laser product safety KENWOOD Corp certifies this equipment conforms 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 Refer t...

Page 2: ...re the AC power cord can be easily unplugged The power in this unit will not be completely cut off from the AC wall outlet when the power completely unplug the AC power cord from the AC wall outlet 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 outside the product Location Bottom CLASS 1 LASER PRO...

Page 3: ...YSTEM RECEIVER SPEAKERS HM 337 L RXD M37 L LS M37 L HM 337 S RXD M37 S LS M37 S System configuration Refer to parts list on page 18 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 4: ... necessary It 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 Accumulation of tape oxide during normal operations can cause problems including loss of high f...

Page 5: ... 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 Level Adjustment 1 Set the function switch to TAPE and the record and play tape mechanism to RECORD 2 Connect a VTVM and frequ...

Page 6: ...0 mod High end Same as step 2 Confirm Vt 6 5 8 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 GENERATOR AM LOOP ANT AM LOOP ANTENNA DUMMY LOAD TEST UNIT VTVM R OUT L OUT GN...

Page 7: ...7 9V 3 90 1 MHz 90 1 MHz Connect oscilloscope or VT VM to speaker 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 TEST UNIT GROUND METER Vt DC www xiaoyu163 com QQ376315150 9 9 ...

Page 8: ... R1 R149 R113 R112 R148 R123 R124 C111 R3 R128 R129 R130 R131 R132 R133 R134 C119 C105 C016 R2 R8 R114 C114 R7 R5 J6 1 3 J21 R116 R122 J22 J18 R102 J1 J19 J16 J20 J23 J24 J25 J2 J3 J5 R135 J9 R147 J7 X102 X101 C101 C103 J8 C109 J15 J12 J14 J13 R146 L101 J4 R111 J11 40 1 10 1 8 1 8 5 1 1 3 9 1 6 1 1 E B B E BE E C E C R150 R160 R169 R170 R171 R172 R151 R152 R153 R154 R155 R168 R156 R164 R165 R167 R...

Page 9: ...610 C621 C617 C615 C611 C607 C605 C603 C281 C601 C631 R623 R621 R320 R312 C350 R316 L302 C320 C302 C301 R311 C319 R315 C324 R304 R336 R337 TP10 TP9 R822 R818 R817 C333 R335 R330 R331 R346 R338 R332 R340 C316 C360 R302 R318 R317 C323 C366 C364 R360 R301 R303 C308 R306 R307 R308 R319 R305 C307 C309 TP7 C321 L301 TP11 MGND C365 R364 C362 C363 R365 TP13 TP8 R220 R206 R201 R200 C221 R223 R239 R218 C294...

Page 10: ...6 J27 R700 R701 R705 R702 R762 R761 R738 R724 R734 R736 C756 R741 C725 C743 C758 C742 R721 C728 R731 R730 C712 C759 C714 R716 R763 E B R729 R733 R732 C736 C738 C703 C715 C729 C745 C741 C755 C760 C749 R737 R740 C707 R704 R703 C706 R707 C711 C701 C708 R706 C717 C727 C757 J702 R742 C720 GND C718 C733 R717 TE0 FE0 VREF C716 C754 J703 R743 J701 R757 R744 R758 R745 R746 R760 R759 R747 R739 R728 RF0 C744...

Page 11: ...FN2 50 49 47 48 46 45 44 43 41 40 42 39 38 37 36 35 34 33 31 32 81 82 83 84 85 86 88 87 90 89 94 93 92 91 95 96 97 99 98 100 CM CHOKE C790 0 01 C724 470u16 C702 0 022 470u16 M G D G 3 2 C709 0 047 8 5V 1 8 5V R762 39K C707 1 270 R707 C706 270 R706 1 39K R761 C721 8 5V 8 5V 100uH L705 7 BUCK CD RW 10 CCE RST 8 9 GND 2 BUS 0 BUS 1 6 5 BUS 2 BUS 3 SLT 4 3 2 CLT 1 CLT 1 96 97 100 10 93 92 90 91 0 1 SG...

Page 12: ...F1 VREF VREF2 ALC 300K 180K 300K 180K 180K 300K 180K 300K 2 2K R353 100u16 C303 100 R305 0 018 C307 6 8K R307 470 R309 100u16 C313 1 C311 1 C309 3K R348 3K R347 100K R324 100K R323 1M R339 47u16 C317 10K R327 10K R328 C326 47MH L302 15K R316 82P C322 1000P C320 10K R312 100u16 C304 100 R306 6 8K R308 0 018 C308 470 R310 100u16 C314 2 2u50 C315 1 C310 1000P C302 1000P C301 4 7K R320 4 7K R319 0 022...

Page 13: ...3 2 1 SI2 SO2 SCK2 6 7 8 WAIT RESET BOOT 3 4 5 GND 5V 1 2 VOL STB VOL DATA VOL CLK 1 3 2 1 MUTE 7 PSW GND BIAS CONT 8 9 PLAY REC 5 6V 12V L V DET 4 6 5 3 5V 2 16 45 22 8 R146 10K 47uH L101 R108 1K 21 R109 10K 24 R110 1K 25 10K R116 4 7K R115 0 022 C112 100K R117 100K R125 R118 100K 4 7K R119 27 0 022 C113 100K R121 10K R120 6 MODE SW SOLENOID H OUT TAPE TOUCH SW H VCC 3 1 2 NC 4 5 MOTOR REC SW 7 8...

Page 14: ...710 776 643 627 644 646x2 645x2 672x2 672x2 678 678 629 642 615 614 613 617 660 665 724 666 603 605 604 661 607 608 642 667 T901 T902 651 651 652 658 650 L902 649 K901 641 634 638 637 636 635 631 632 630 640 675 673 677 674 A E D D B B B B E A F F E 726 725 E E E A A A A A B E E E D E F F E B B D D Dx2 Bx2 Bx2 Bx2 Ex2 Ax2 Ax2 Ax2 Bx7 Ax2 Ax2 Gx2 Gx2 Fx2 Fx2 Fx2 Ex2 Ex2 651x2 HM 337 RXD M37 1 2 A C...

Page 15: ...42 08 POLYSTYRENE R 86 00337 01 H60 1289 08 ITEM CARTON 89 00337 02 E H60 1290 08 ITEM CARTON 89 00337 04 M H60 1291 08 ITEM CARTON 89 00337 03 X H60 1295 08 ITEM CARTON 89 00337 01 L T19 0237 08 SPEAKER UNIT 00 00337 00 EX T19 0238 08 SPEAKER UNIT 00 00337 01 L T19 0239 08 SPEAKER UNIT 00 00337 02 M 603 2A A53 2451 08 CASS LID ASSY 00 00337 04 604 2A G01 4373 08 CASS LID SPRIN 36 00337 00 605 2A ...

Page 16: ...ts Parts No Description Desti nation Re marks C245 CC73GCH1H070D CHIP C 7 0PF D C247 248 CK73GB1H102K CHIP C 1000PF K C251 252 CK73GB1H104K CHIP C 0 10UF K EL C253 CK73GB1H271K CHIP C 270PF K EL C254 CE04KW1H2R2M ELECTRO 2 2UF 50WV EL C255 CK73GB1H561J CHIP C 560PF J EL C256 CK73GB1H473K CHIP C 0 047UF K EL C257 CE04KW1A101M ELECTRO 100UF 10WV EL C258 259 C90 5819 08 CHIP C 51PF F EL C260 CC73GCH1...

Page 17: ...afety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C790 CE04KW1C471M ELECTRO 470UF 16WV C801 CE04KW1A330M ELECTRO 33UF 10WV C803 804 CE04KW1HR47M ELECTRO 0 47UF 50WV C805 806 CK73GB1H331J CHIP C 330PF J C809 810 CE04KW1C470M ELECTRO 47UF 16WV C811 812 CE04KW1C332M ELECTRO 3300UF 16WV C813 814 CE04KW1C101M ELECTRO 100UF 16WV C815 816 C91 1681 08 FILM 0 1U...

Page 18: ...ety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks R159 RK73GB1J823J CHIP R 82K J 1 16W R160 RK73GB1J750J CHIP R 75 J 1 16W R161 RK73GB1J471J CHIP R 470 J 1 16W R162 RK73GB1J152J CHIP R 1 5K J 1 16W R163 RK73GB1J102J CHIP R 1 0K J 1 16W R164 RK73GB1J272J CHIP R 2 7K J 1 16W R165 RK73GB1J392J CHIP R 3 9K J 1 16W R166 RK73GB1J272J CHIP R 2 7K J 1 16W R167 RK...

Page 19: ...B1J333J CHIP R 33K J 1 16W R738 RK73GB1J102J CHIP R 1 0K J 1 16W R739 RK73GB1J100J CHIP R 10 J 1 16W R740 RK73GB1J683J CHIP R 68K J 1 16W R741 RK73GB1J473J CHIP R 47K J 1 16W R742 RK73GB1J101J CHIP R 100 J 1 16W R743 747 RK73GB1J473J CHIP R 47K J 1 16W R757 760 RK73GB1J223J CHIP R 22K J 1 16W R761 762 RK73GB1J393J CHIP R 39K J 1 16W R763 RK73GB1J330J CHIP R 33 J 1 16W R801 802 RK73GB1J123J CHIP R ...

Page 20: ...eaker configuration Woofer 100 mm cone type Impedance 4 Ω Maximum input level 5 W Dimensions W 130 mm 5 1 8 H 208 mm 8 3 16 D 161 mm 6 5 16 Weight net 2 3 kg 5 1 lb 1 piece Notes KENWOOD follows a policy of continuous advancements in development For this reason specifications may be changed without notice Sufficient performance may not be exhibited at extremely cold locations where water freezes H...

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