Kenwood RD-M23 Service Manual Download Page 23 | Manualshive

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Parts with exploded numbers larger than 700 are not supplied.

2

1

DM

Bx2

7x2

6x2

NSW801

FM

PU

5

Dx2

3

4

C

A

C

PWB-C

A : 1.5x3.8x0.25
B : ø 2x3
C : ø 2.6x6
D : 2x5

: N19-1527-08
: N09-5339-08
: N09-5340-08
: N09-5341-08

1

2

3

A

B

EXPLODED VIEW (MECHANISM)

RD-M23

29

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Summary of Contents for RD-M23

Page 1: ...oduct relating to laser prod uct 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 Plate B03 3900 08 CD lid J19 6268 08 Knob K29 8084 08 Rear panel A80 4203 08 Digital out jack W02 2878 08 Bottom cabinet A10 3564 08 Socket E03 0384 08 Terminal E21 0...

Page 2: ... following Caution This operation will erase all data stored in memory including clock timer settings tuner preset and CD programme 1 Set the unit to the stand by mode and turn the power on again 2 If the unit is not restored in step 1 unplug and plug in the unit and then turn the power on 3 If neither step 1 nor 2 restores the unit do the following Press the ON STAND BY button to enter the power ...

Page 3: ...pact disc out of the unit 2 Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit 3 Take off nylon bands or wire holders where they need to be removed when disassembling the unit After servicing the unit be sure to rearrange the leads where they were before disassembling 4 Take sufficient care on static electricity of integrated circuits and other cir...

Page 4: ...witch PWB CD Lid Motor CD MECHANISM SECTION See Fig 10 2 Perform steps 1 2 and 7 of the disassembly method to remove the CD mechanism See page 8 9 1 Remove the mechanism cover paying attention to the pawls A1 x 4 pcs 2 Remove the screws A2 x 2 pcs to remove the shaft A3 x 1 pc 3 Remove the stop washer A4 x 1 pc to remove the gear A5 x 1 pc 4 Remove the pickup Note After removing the connector for ...

Page 5: ...OREV RFI RFCT LPFN LPFO PVREV TSIN VREF X801 16 93MHz XO XI VDD VDD VDD VDD VDD XVDD AVDD 2VREF SEL RFGC TEBC FOO TRO TEI TEZI RFRP FEI SBAD P2VREF SWITCHING MUTE VOLTAGE REGURATOR VOLTAGE REGURATOR B6 R CH L CH SO401 VIDEO AUX INPUT CD LID MOTOR DRIVER 1 2 3 5 6 7 8 9 IC805 TA7291S 11 10 9 8 7 6 5 4 3 2 1 CE CL DI SD FM ST DO A_12V D_GND TUN L TUN R A_GND 11 1 2 3 4 5 6 7 8 9 10 SD STEREO DO CE D...

Page 6: ...D_UP CLID_PRO CD_RES PU IN DIMMER B LIGHT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TO MAIN PWB TO MAIN PWB TO POWER PWB TO MAIN PWB CNS702 CNW702 REMOTE SENSOR RX701 3 2 1 3 4 2 1 2 1 CNW707 CNS707 CNS652 RESET VLC1 VLC2 VLC3 7 6 5 MMOD VREF VREF VSS 15 24 14 11 SYS_STOP POWER 38 37 13 12 10 9 X701 X702 OSC1 OSC2 XO XI CLID_SW SW711 713 SW721 722 SW725 727 SW709 SW718 SW710 KEY1 KEY2 18 17 16 SYSTEM MI...

Page 7: ...is problem use a cleaning disc designed for CD optical pickup lenses Make sure that the disc is normal and set the CD TEST MODE STEP 1 Is the measured voltage as specified in circuit diagram Check the main unit power supply circuit No Yes No Is Er CD01 displayed Yes Move the pickup to most internal circumference side of disc Turn the power off and reset the CD TEST MODE STEP 1 Is PU ERROR not disp...

Page 8: ...he PWB pattern between collector of Q861 and pin 62 of IC802 Check the PWB pattern between collector of Q861 and pin 1 of IC801 pin 43 FEI pin 48 FOO pin 44 SBAD Yes Yes Focus servo sawtooth wave failure Is 6 2V applied to the pins 21 and 22 VCC of IC804 Is sawtooh wave output to the pin 48 FOO of IC802 IC802 is faulty No Yes Yes Is sawtooth wave obtained between pins 26 and 27 of IC804 No No Chec...

Page 9: ...tep 4 test mode step 5 DMO Sled motor operation failure Yes Yes Is following sled feed signal output the pin 53 FMO of IC802 when FF REW key is pressed after the CD TEST MODE STEP 1 is seted Is sled feed signal output the pins 1 and 2 of IC804 Is sled feed voltage applied between both terminals of sled motor No Check the peripheral parts of IC804 If OK IC804 is faulty No C801 is faulty Check the C...

Page 10: ... Electronic Volume Test Mode TEST 3 REW PRESET DOWN FF PRESET UP 4 Timer Test Mode TEST 4 FUNCTION VOLUME UP 5 LCD Test Mode TEST 5 FUNCTION FF PRESET UP 6 Electric CD Lid Aging Test Mode TEST 8 FUNCTION CD PLAY FUNCTION VOLUME DOWN Self diagnosis Test Mode 1 Button input diagnosis test mode TEST6 Processes are different depending on destinations at initial settings The time display always indicat...

Page 11: ...p slides toward the inner periphery while this button is pressed If PICKUP IN is on input is invalid PLAY Invalid STOP Return to step 1 FUNCTION Shift to step 6 MEMORY Shift to step 5 If the focus is not received the process returns to step 1 7 Step 7 Mode Press MEMORY key during step 6 operation to display automatically adjusted values on LCD in the order as below Item names are displayed by left...

Page 12: ... preset memory The slant line sections of the table store no memory BAND 16 25 26 FM106 00 MHz 27 FM 90 00 MHz 28 FM FM 98 00 MHz 29 MONO FM108 00 MHz 30 FM 87 50 MHz FM CH BAND 1 FM 87 50 MHz 2 FM108 00 MHz 3 FM FM 98 00 MHz 4 STEREO FM 90 00 MHz 5 FM106 00 MHz FM CH BAND 6 AM 522 kHz 7 AM1620 kHz 8 AM AM 990 kHz 9 AM 603 kHz 10 AM1404 kHz AM CH 4 Electronic volume Test Mode TEST 3 When this test...

Page 13: ... electric CD lid Outline OPEN CLOSE operations of electric CD lid are repeated The number of repeated times and time period are monitored If the lid does not move to the regular position after the specified time operation is stopped When an error is detected by CLID_PRO during CLOSE operation is also stopped d Display OPEN CLOSE is counted as 1 I to 59999 are counted if the count is over 59999 dis...

Page 14: ...he resistor without any symbol is ohm type resistor Besides the one with Fusible is a fuse type Capacitor To indicate the unit of capacitor a symbol P is used this symbol P means micro micro farad and the unit of the capacitor without such a symbol is microfarad As to electrolyticcapacitor theexpression capacitance withstand voltage is used CH TH RH UJ Temperature compensation ML Mylar type P P Po...

Page 15: ...C802 43pin SBAD 2 TRO 2 IC802 44pin IC802 49pin RFO 3 FMO 3 IC801 22pin IC802 53pin STOP PLAY REVIEW FEI 1 TEI 1 IC802 43pin RFGO 2 TRO 2 IC801 19pin IC802 49pin RFRP 3 FMO 3 IC801 17pin IC802 53pin STOP PLAY TCD 782 TNO 02 PLAYBACK TEI 1 L O 1 IC802 46pin TRO 2 IC802 49pin RO 2 SBAD 3 IC802 44pin 1 2 3 4 6 7 11 15 16 17 IC802 85pin IC802 46pin IC802 46pin IC802 46pin IC802 30pin 5 6 5 7 8 5 9 10 ...

Page 16: ...rating 6 Value 7 Tolerance Dimension Chip capacitors Dimension code L W T Empty 5 6 0 5 5 0 0 5 Less than 2 0 A 4 5 0 5 3 2 0 4 Less than 2 0 B 4 5 0 5 2 0 0 3 Less than 2 0 C 4 5 0 5 1 25 0 2 Less than 1 25 D 3 2 0 4 2 5 0 3 Less than 1 5 E 3 2 0 2 1 6 0 2 Less than 1 25 F 2 0 0 3 1 25 0 2 Less than 1 25 G 1 6 0 2 0 8 0 2 Less than 1 0 RESISTORS Chip resistor Carbon Dimension Carbon resistor Norm...

Page 17: ...57 C651 C654 D401 CNP804 C421 C430 CNP806 C423 C429 C417 C837A C836 CNP702 D402 D403 CNP703 C831 C862 R815 R816 R423 R425 R424 C418 C424 C402 C401 C426 C422 C407 C404 C403 C416 C408 C415 C425 CNW607 CNP801 C660 D660 D659 C659 C630 C853 CNP805 C851 CNP607 R405 R407 R406 R408 L601 SW802 CNW806 R914 LEDD801 CNW701 IC805 IC901 CNW805 CNW803 CNS805 CNS803 CNW3 CNS607 CNS804 CNW804 M801 CNS701 CNS806 NS...

Page 18: ...R382 R386 D308 X352 R391 C391 Q360 R392 R385 C396 R384 R377 ZD351 R395 L352 C370 C357 C398 C352 C358 R376 Q351 CF351 C399 R363 IC303 X351 C371 C372 C364 C368 C374 C367 C373 IC302 SO301 CNS307 Q302 L302 R307 T304 R303 R309 L303 R301 IC301 R701 LED701 LED702 CFW701B C705 AC POWER INPUT SOCKET POWER TRANSFORMER SUB POWER TRANSFORMER MAIN 1 15 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 2 3 4 11 11 3 WH BK ...

Page 19: ... 018 C366 0 001 IC302 LC72131 IC303 LA1832S IC301 TA7358AP C302 0 001 CF302 D301 1N4148 D302 1N4148 C330 12P CH T302 R353 270 T351 CF352 C350 0 022 C352 10 16 R352 1K C353 0 022 C354 0 022 CF351 C363 0 022 C364 10 16 C365 0 022 R358 8 2K C343 33P C361 0 022 R382 330 C394 47 16 C397 0 022 C317 0 022 C313 6P UJ C311 10P CH C306 7P UJ C305 0 0047 C307 0 0047 C308 0 022 C309 0 001 C310 0 022 R386 330 ...

Page 20: ...N5402M C654 0 1 C651 0 1 F651 C660 0 1 C659 0 1 C658 0 1 C657 0 1 D660 D659 D657 1N4004 1N4004 1N4004 1N4004 R417 1K R637 4 7 L601 3µH C403 10 16 C407 10 16 C408 10 16 C404 10 16 C402 10 16 R422 1K R415 1K R416 1K R418 1K R421 1K IC401 LC75342M C415 10 16 C417 2 2 50 C419 0 0027 C421 0 1 ML C423 0 1 ML C425 10 16 C430 100 16 D403 1N4004 R439 3 9K R437 6 8K R435 10K R436 10K C429 33 16 R438 6 8K C4...

Page 21: ...ESIN TESI01 VSS PXI PXO VDD XVSS XVDD XO XI FLGD TRO VREF 50 49 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 44 33 32 31 LPFN LPFO RST TSMOD DVSR RO 3 2 1 3 8 2 1 DIMMER MAIN PWB A1 2 2 CD MOTOR PWB C LED PWB A6 SWITCH PWB A5 CNP805 TO TERMINAL PWB A4 CNS702 FROM DISPLAY PWB A3 TO MAIN PWB A1 1 2 CD LID OPEN CLOSE MOTOR CD LID OPEN CLOSE PVREV LO M 16 93MHz R817 1 2K R861 2 2K R863 2 2K C864 22...

Page 22: ... 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3 2 1 DISPLAY PWB A3 LED PWB A7 CNP703 CNP702 TO MAIN PWB A1 1 2 TO MAIN PWB A1 2 2 3 2 1 3 2 1 REMOTE SENSOR USWD_5R6V D_GND CNP707 CNP652 TO POWER PWB B TO MAIN PWB A1 1 2 FL DISPLAY SYSTEM MICROCOMPUTER FL DRIVER 32 768kHz 8MHz 3 2 1 GND C705 0 01 R718 1 5K R7A3 100 R789 47K L702 2 2µH X701 R720B 1 2K R719 1 2K R710 2 7K R...

Page 23: ...mbers larger than 700 are not supplied 2 1 DM Bx2 7x2 6x2 NSW801 FM PU 5 Dx2 3 4 C A C PWB C A 1 5x3 8x0 25 B ø 2x3 C ø 2 6x6 D 2x5 N19 1527 08 N09 5339 08 N09 5340 08 N09 5341 08 1 2 3 A B EXPLODED VIEW MECHANISM RD M23 29 ...

Page 24: ...19 625 M801 624 626 J Kx3 620 712 618 Mx2 602 601 715 T651 T681 737X4 LX2 630X2 740 716 Vx2 Vx2 Vx2 Vx3 PWB B PWB A7 R Gx4 606 654 655 651 755 652 653 G H I 2 5x10 2 5x8 J K L N09 5345 08 2 5x12 φ φ φ 3x8 φ 3x10 φ 2 5x8 φ 2 5x10 φ Washer M N 2x5 3x6 φ P Q R N09 5348 08 N09 5365 08 N09 5364 08 N09 5363 08 N09 5362 08 N09 5361 08 N19 1528 08 N09 5360 08 4x8 3x6 S T U N09 5331 08 N09 5347 08 N09 5350...

Page 25: ... FRONT CABINET GCABA1071SJSA 601 3D A10 3564 08 BOTTOM CABINET GCABB1066SJSA 602 3D A80 4145 08 REAR PANEL GCOVA1007SJSA ET 602 3D A80 4203 08 REAR PANEL GCOVA1008SJSA MX 603 2D B12 0439 08 COVER REMOTE GCOVA1005SJSA 604 2C J19 6268 08 CD LID GFTAT1011SJSA 606 1C F07 1764 08 CLEAR PANEL CD HDECQ0057SJSA 607 1D B10 3764 08 CLEAR PANEL DI HDECQ0058SJSA 608 1C K29 8084 08 KNOB OPERATION JKNBZ0057SJSA...

Page 26: ...hai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C332 CK45FB1H223Z CERAMIC 0 022UF Z C334 CC45FCH1H270J CERAMIC 27PF J C335 CK73GB1H561K CHIP C 560PF K C337 CK45FB1H223K CERAMIC 0 022UF K C341 CK73GB1H223K CHIP C 0 022UF K ET C343 CC73GCH1H330J CHIP C 33PF J C345 347 CK73GB1H223K ...

Page 27: ...C China I Malaysia Y PX Far East Hawaii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C828 829 CE04LW1A101M ELECTRO 100UF 10WV C830 CK73GB1E563K CHIP C 0 056UF K C831 832 CE04LW1C100M ELECTRO 10UF 16WV C833 834 CK73GB1H471K CHIP C 470PF...

Page 28: ...i Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks R306 RK73GB1J100J CHIP R 10 J 1 16W MX R308 RK73GB1J103J CHIP R 10K J 1 16W MX R310 RK73GB1J472J CHIP R 4 7K J 1 16W MX R312 RK73GB1J222J CHIP R 2 2K J 1 16W MX R313 RK73GB1J681J CHIP R 680 J 1 16W MX R314 315 RK73GB1J330J CHIP R 33 J...

Page 29: ... safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks R904 RK73GB1J222J CHIP R 2 2K J 1 16W R905 RK73GB1J473J CHIP R 47K J 1 16W R913 R92 0219 05 FUSE RESIST 10 G 1 4W MX VR351 R12 3685 08 10 KOHM B SEMI RVR M0999AFZZ RLY601 S76 0129 08 RELAY RRLYD0004SJZZ SW651 S62 0106 08 SWITCH SLIDE QSOCE0008AWZZ MX SW709 713 S70 0094 08 SWITCH KEY QSW K0004SJZZ SW718...

Page 30: ...nada L5T 1S8 KENWOOD ELECTRONICS LATIN AMERICA S A P OBOX55 2791 Piso6plazaChase Cl 47yAquilinodelaGuardiaPanama RepublicdePanama KENWOOD ELECTRONICS BRASIL LTDA Alameda Ministro Rocha Azevedo No 456 Edificio Jaú 10o Andar Cerqueira César Cep 0140 001 São Paulo SP Brasil KENWOOD ELECTRONICS U K LIMITED KENWOOD House Dwight Road Watford Herts WD1 8EB United Kingdom KENWOOD ELECTRONICS BELGIUM N V L...

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