Kenwood-RXDDV70-cs-sm 电路图 维修手册.pdf

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1、70% MINI HiFi COMPONENT SYSTEM RXD-A850DV/DV50/DV70 SERVICE MANUAL (XD-A850DVDV70)* 2001-9 PRINTED IN KOREA B51-5751-00 (K/K) 3186 * Refer to parts list on page 28 . In compliance with Federal Regulations, following are repro- duction of labels on, or inside the product relating to laser product saf

2、ety. 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. EX.BASS VOLUME CONTROL DISC SELECTORDISC SKIP0OPEN/CLOSE STANDBY /TIMER DISPLAY/DEMO REVERSE

3、 MODE VIDEO/AUX POWER DVD/CD TAPE A PHONESMICMIC LEVEL TAPE BSTOP VIRTUAL SURROUND TUNER BAND ON/STANDBY LISTEN MODE DVD VCD CD SELECT ENTER TUNING MODE EQ MODE /EX.BASS SMART MENU M U LT I C O N T R O L/ P. C A L L REC/ARM 4 DISC 1DISC 2DISC 3 23237 PUSH OPEN PUSH OPEN TAPE A PLAYPLAY/REC TAPE B Do

4、or tray (A22-1864-08) Knob(MAIN) (K29-8040-08) Door deck(R) (A52-0948-08) Button(DISC) (K29-8031-08) Window * (B10-) Button(OPEN/CLOSE) (K29-8037-08) Button(MENU) (K29-8039-08) Button(REC/ARM) (K29-8036-08) Volume ring (B01-2575-08) Button(ON/STANDBY) (K29-8038-08) Door deck(L) (A52-0947-08) Front p

5、anel * (A60-) M and M2 types are available for MIC circuit. *Refer to page 2 if you want to know system configuration. RadioFans.CN 收音机爱 好者资料库 RXD-A850DV/DV50/DV70 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS. 2 EXTERNAL VIEW.3 ADJUSTMENT.4 PC BOARD . 5 SCHEMATIC DIAGRAM . 1

6、3 EXPLODED VIEW .26 PARTS LIST.28 SPECIFICATIONS .36 Contents FM indoor antenna (1) (T90-0881-08) Loop antenna (1) (T90-0882-08) Remote control unit (1) (A70-1533-08): .KYX (A70-1534-08): .TE (A70-1535-08): .MM2 Batteries (R6/AA) (2) *AC plug adaptor (1) (E03-0115-05) * Use to adapt the plug on the

7、power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.) / Video cord (1) (E30-7235-08) The marking is located on the rear panel and says that the component uses laser beams that have been clas- sified as Class 1. It means that the unit is utilizing laser beam

8、s that are of a weaker class. There is no danger of hazardous radiation outside the unit. The marking of products using lasers (Except for some areas) Accessories SYSTEMMAIN UNITDESTINATIONSPEAKER XD-A850DVRXD-A805DVKLS-N50V-H XD-DV50RXD-DV50MXETLS-N50V XD-DV50(M2)RXD-DV50(M2)M2LS-N50V XD-DV60RXD-DV

9、70MXLS-N70V XD-DV60(M2)RXD-DV70(M2)M2LS-N70V XD-DV70RXD-DV70MXLS-N90V Operation to reset The microcomputer may fall into malfunction (impossibility to operate, erroneous display, etc.) when the power cord is un- plugged while power is ON or due to an external factor. In this case, execute the follow

10、ing procedure to reset the microcom- puter and return it to normal condition. Please note that resetting the microcomputer clears the contents stored in and returns and to condition when it left the factory. Set the POWE key to ON. Then press the VIDEO/ down. AUX key while holding the TUNING MODE ke

11、y System configurations Cautions RadioFans.CN 收音机爱 好者资料库 RXD-A850DV/DV50/DV70 3 EXTERNAL VIEW * Refer to parts list on page 28 . LR L R L R VIDEO/AUX IN OUT FRONT SPEAKERS (6) ON OFF SURROUND SPEAKERS (8 16) SURROUNDS-VIDEO Cr Cb Y FM 75AM GND ANTENNA SUPER WOOFER PRE OUT COMPONENT VIDEO OUTPUT VIDE

12、O OUTPUT DIGITAL OUT OPTICAL + + AC 110- 120V AC 220- 240V Metallic cabinet (A52-0949-08) DIN socket (E63-1243-08) Tuner assy * (W02-) Phono jack * (E63-) AC power cord * (E30-) Phono jack * (E63-) Lock terminal board (E70-0152-08) Slide switch (S62-0108-08) Lock terminal board (E70-0158-08) Digital

13、 out (W02-2911-08) Phono jack * (E63-) AC power cord bushing (J42-0350-08) Slide switch (S62-0109-08) RadioFans.CN 收音机爱 好者资料库 RXD-A850DV/DV50/DV70 4 LR L R L R VIDEO/AUX IN OUT FRONT SPEAKERS (6) ON OFF SURROUND SPEAKERS (8 16) SURROUNDS-VIDEO Cr Cb Y FM 75AM GND ANTENNA SUPER WOOFER PRE OUT COMPONE

14、NT VIDEO OUTPUT VIDEO OUTPUT DIGITAL OUT OPTICAL + + AC 110- 120V AC 220- 240V Oscilloscope FM SG AC voltmeter Frequency counter AC voltmeterAG (A) (B) Measurement Equipment Connections CASSETTE DECK SECTION INPUTOUTPUTCASSETE TAPE ALIGNMENT ALIGN FOR SETTINGSSETTINGSDECK SETTINGSPOINT 0dB = 400mV 1

15、. Cassette mechanism section (REC/PB head adjustment) Power OFFREC/PB head, Demagnetize the REC/PB head by head Demagnetizationdemagnetization,erase head.eraser.Clean the REC/PB head,erase and cleaningcleaning playcapstan,pinchhead capstan and pinch roller with a rollercotton awab immersed in alcoho

16、l. Adjust the output to maximum and azimuthMTT-114Azimuthadjust the azimuth adjustment screw REC/PB HeadTCC-153adjustmentfor the Lissajours waveform pattern of azimuth10KHz,-10dBscrewthe oscilloscope to become close to a 45 straight line. 2.PC board adjustment MTT-111Adjust the tape speed so that 3k

17、Hz is 1Tape speedTCC-100AUX OUTPUTPLAYVR901obtained at the center of the tape. 3KHz, -4dB(Frequency of 3KHZ +/- 40Hz) 2 PLAY BACK MTT-130AUX OUTPUTPLAY-Playback output to 400mV +/- 50mV LEVEL CN902 Pin1 and Pin2(GND) 3REC BIASREC/PBAUX OUTPUTRECT901Ensure that the Frequency Counter FrequencyTEST TAP

18、EAdjust T901 to obtain this of 105KHz AC-224+/- 5KHz Record 400Hz and 10.0kHz alternately, REC/PBand adjust the bias current adjustment 1.TP1(+) and TP2(GND) REC BIASTEST TAPEVR903(L-CH) Adjust VR903(L-CH) to obtain this of 3.5mV 4CurrentAC-224AUX OUTPUTREC 2.TP3(+) and TP4(GND) VR904(R-CH) Adjust V

19、R904(R-CH) to obtain this of 3.5mV AUX IN: 50mVREC* potentiometer for the playback levels to 400Hz become the same. (Spec.: +/-5dB) AMPLIFIER SECTION INPUTOUTPUTAMPLIFIERALIGNMENT NOITEM SETTINGSETTINGSETTINGPOINT ALIGN FOR 1.R234 Side Pin1 and Pin3 IDLENO SIGNAL AUXVR201 Adjust VR201 to obtain this

20、 of +8 mV 1 CURRENTVR(Min.) - FUNCTIONVR202 1.R301 Side Pin1 and Pin3 Adjust VR202 to obtain this of +8 mV (Spec.: +8mV +/-3mV) # Idle Current: 20mA NOITEM PLAY 1 2AUX OUTPUT - ADJUSTMENT ABDFHJCEGI 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Com

21、ponent side view) 65 JW7 JW10 JW11 JW5 JW4 JW15 C003 JW9 C002 M001 BD01 BD02 JW16 JW17 JW14 D001 P1001 P1002 CONTROL BOARD P001 P1004 P028 P026 P027 JW8 JW1 JW3 JW6 C005 R003 R002 R004 C004 JW2 R001 C006 JW13 JW12 1 1 1 110 1 10 14 EB 8 2 1 218 DVD-LOGO SENSOR BOARD IC002 D002 IC001 Q001 P002 P1003

22、L3 L2 L6 L5 C10 C13 C15 L1 J705 C701 R702 R701 L4 C702 J704 R11 C9 CDL2 CDL1 K701 2 1 3 C704 C706 J708 R703 F702 F07 F08 J702 R706 J707 J701 F701 F05F06 R708 CN705 IC701 CN706 D1 D2 R707 D706 D708 Q1 D3D4 JK1 JK2 Q2 D701 D705 D703 D704 IC701(CP706) D707 D709 Q702 CN703 CP704 P706 P709 S701 DIGITAL O

23、UT OPTICAL S VIDEO CVBS VIDEO OUTPUT AC INPUT STANDBY-VIDEO BOARD CN702 VOLTAGE SELECTOR R10 C22 C21 C19 C8 R12 J1 C17 F703 R700 T701 J700 C705 R709 J706 12 151 1 2 15 14 7 BE BE BE 14 14 14 JK3 KMOQSLNPRT 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOA

24、RD (Component side view) 7 8 R483 B E B E B E B E B E BE BE BE BE B E B B E E BE B E BE B E B E BE B E BE B E BE B E BE B E B E B E B E B B B E E E BE B E B E BE B E BE BE B E BE BE BE BE B E B E BE B E B E BE B E B E BEBEB E B EBE BE B E J338 J335 C405 C401 C403 J336 C407 J383 J254 J332 J330 J327 J

25、334 J333 J329 J255 J328 C435 R433 R405 C422 R434 R419 R438 R437 J323 J322 J325 C421 J326 R407 C420 J342 J341 J343 C406 C416 J340 C429 C409 C410 R424 C430 J318 C252 J303 C424 J360 R412 R248 R252 R239 R280 R484 R470 R474 C268 C267 R281 R269 R261 R238 R233 R286 R293 C263 R306 J376 R237 R242 J364 J398 J

26、294 C208 J367 J293 C207 J292 J297 R234 J385 R320 C261 J298 J238 J288 J302 R301 J290 J289 J102 J291 J365 R291 R298 J258 J240 J280 J279 J278 J281 L202 R207 J339 R340 J261 R231 R201 R202 R348 R349 R232 R247 R236 R417 R339 R222 R299 R342 J263 VR202 J324 J287 J232 J260 R297 J313 J299 J259 J286 R321 J282

27、J283 R480 R491 J285 R421 J321 R406 J393 R435 R410 R487 C408 R220 R489 R345 R486 J384 C404 R343 R347 J372 C253 J374 J391 J373 J386 J361 J371 J369 J368 J366 J362 J354 J353 J351 J352 J382 J359 R358 C258 R371 R370 R355 R356 R372 R373 R353 R361 C260 R360 R230 R229 R357 R359 C203 J370 J235 J269 J252 C622

28、J224 J256 J257 J243 J244 J388 J247 J250 J246 J245 J248 C615 C638 J600 C626 J251 J221 J226 R609 H3 C632 R624 R604 J212 J220 C601 F611 J222 J219 C608 J210 J200 J389 J380 J202 J204 J201 F610 J205 J218 C607 C604 C603 J217 J216 J215 J214 J213 J211J206 R602 J381 J234 J228 J225 J227 C633 J223 C639 R623 J22

29、9 R606 C640 IOG IO G C634 J241 J242 C617 C618 C621 H006 R626 C635 J231 J230 H4 H5 J249 C623 J233 J379 B B E E C630 R610 R608 C631 J103 C606 C602 C605 C627 R607 R625 R605 J209 J207 J208 R620 F604 F603 R627 C614 J253 CP613 IC601 Q601 Q603 Q604 CN602 Q605 CN603 CP607 CN604 CN618 CP611 CN605 IC603 Q606

30、CN2 D604 Q607 D611 D610 D609 D620 D602 D601 D606 IC602 CN614 J356 J355 J270 J357 J266 J268 J267 VR201 R226 R225 J265 R223 R224 J273 J274 J276 J277 J264 J262 R214 R215 C202 R208 R209 R290 R216 C206 C204 R212 R311 R308 R213 R312 J363 R309 R210 R221 R217 R218 R211 R219 R313 R310 R307 J377 R402 C402 R25

31、4 R420 R411 R414 R256 C213 R418 R258 C432 R415 R374 R490 R366 R329 R244 J348 K201 J275 J350J349 R250 J203 C262 R249 J358 R270 R259 R265 R267 J101 C218 J320 J331 J394 J312 J390 J319 J317 C431 R245 J314 J301 J300 J346 J345 R283 R289 D218 D212 D211 R227 C205 R262 R263 R303 R351 R350 R264 R271 R272 R416

32、 J311 J347 J315 R485 J309 R401 J308 R464 J310 J307 C468 C465 C223 J399 C436 R463 R273 C219 R268 R457 R466 C473 J306 R465 R469R467 C467 C472 R323 R326 R325 R468 C471 R367 J295 J392 R369 L201 R204 R203 R205 R206 R328 R318 R315 R317 R316 R292 R285 C251 C250 C269 R295 R368 R322 R319 J296 C233 C232 C257

33、R331 R324 R327 J304 J284 R459 R458R460 C466 R364 C439 J395 C440 R451 C460 C437 R472 C478 C256 R477 C473 C438 C441 J400 R461 R462 C226 R296 R284 R274 R275 C222 R278 R200 C264 C224 R276 C221 R304 C230 R305 R228 C214 C216 C211 J375 C210 R413 R354 R352 C259 J396 J387 R409 C408 R425 R346 R488 R403 R404 C

34、434 J237 C449 C212 C433 C450 R217 C228 C225 J239 C220 C227 J236 C231 C254 R314 J271 J397 J272 C201 C255 C266 C265 C229 C209 C215 C428 C411 C413 C412 C414 C423 C425 C426 C427 C415 C453 CP404 Q402 IC401 CP402 D233 Q255 CP352 CP203 Q244 Q252 Q246Q247 Q210 CN606 CN616 Q212 D206 Q257 Q256 Q214 CP350 D225

35、 D224 D222 CP351 B B B E E Q207 B E E BE BE Q206 B E Q234 D223 B B B B E E E E Q230 Q228 Q259 Q258 BE Q211 Q253 Q254 CP405 Q209 Q205 D207 Q213 D210 D201 D203 D204 D217 D213 D208 Q208 Q231 Q233 D234 Q241 Q240 Q242 D232 IC406 D229 Q239 D2 D1 Q406 CP401 Q407 Q408 Q401 Q222 Q251 JK402 JK401 Q227 Q232 D2

36、19 D228 Q229 Q235 Q226 Q224 Q225 Q249 D209 D226 D221 Q217Q220 Q218 Q250 Q216 Q221 Q223 Q237 Q219 CP202 Q243 Q215 D235 CP204 CP205 S201 D227 JK203JK204 Q201 Q203 D205 Q202 Q204 D202 Q236 Q238 CP403 Q404 Q403 IC403 IC402 Q410 Q409 Q245 1 218 19 MAIN BOARD 3016 115 14 8 1 5 4 8 17 17 1 16 2 85 14 15 11

37、 1 1 10 1 6 1 113 41 12 5 1 12 12 1 1 10 15 1 11 5 1 11 1 5 5 1 1 13 1 1 1 1 33 6 1 322 8 4 5 1 E B POWER AMP BOARD LRLR FRONT SPEAKERS SURROUND SPEAKERS VIDEO/AUX SUPPER WOOFER PRE OUT INOUT UVXZABADWYAAAC 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BO

38、ARD (Component side view) 109 R971 R954 R964 R977 R913 R914 R860 R909 R944 R927 R943 J930 J916 R942 R941 R917 J947 R916 R990 R987 R947 R993 R978 R980 R986 R362 EN801 R363 R375 G3 R335 J957 C238 C234 C953 C963 R926 R935 R925 R930 R981 R982 R921 R902 TP3 J931 R901 R932 R933 R934 R928 R929 R931 R907 R9

39、06 R908 C912 R903 R904 R994 TP2 TP4 R984 R979 R989 J875 J866 J937 J935 J932 R956 VR901 R955 R967 R821 R820 R819 R611 J896 R612 R866 R814 C831 R831 R833 R834 R864 R865 R846 R847 R870 R837 R838 R40 J901 J834 J833 J873 R806 R849 R848 R803 R42 R802 R804 R856 R959J960 J912 J913 J801 J802 R857 R858 R855 R

40、840 R841 R843 R844 J849 J848 R867 H2 H3 R835 J861 J864 J862 J863 J877 J876 R966 R973 R974 R862 R836 R900 R905 C910 C911 J934 C914 R910 R43 J911 R45 R60 R61 R350 R351 C962 C248 C830 C1 G2 G1 C3 C961 C816 R939 R995 R918 R44 R845 J808 R952 J971 J949 J854 R946 R948 R809 R812 R51 J822 J827 J826 J824 J828

41、 J823 J829 J821 J820 J830 J832 J831 J836 J841 J835 J811 J810 J905 J906 J904 J903 J812 J813 C827 J815 J814 J817 J816 J818 J819 J840 J837 J838 J839 C806 J910 C804 C825 X802 C819 J908 J800 J803 J907 R53 R52 R46 J859 J855 J856 J858 C823 J883 J882 J857 J881 J958 X801 J852 J850 J825 J851 R938 G907 R960 R9

42、61 R958 R959 R962 R965 R976 R945 R992 R816 R808 R815 R861 R863 R818R817 R807 C814 C942 C938 L902 L901 C936 C901 C956 C958 C918 C960 J946 J945 C954 C902 C904 C903 C905 C931 C932 C933 C934 C924 C950 C923 C926 C246 C913 C939 C815 J965 C937 C916 C818 R850R842 J961 C805 C821 C828 C829 C824 C820 C817 C822

43、 C802 C801 C803 C921 C249 C242 C239 C964 R940 R972 R936 TP6TP5 C906 C908 R919 R983 R920 R338 R337 R336 R331 R332 R330 R859 R872 R823 R824 R825 R827R826 R828R829R830 R333 R334 VR201 C240 C241 C237 C235 H8 C236 J929 G904 R923 C920 C957 R985 J944 C952 R915 C915 J878 T901 R963 R969 R953 R951 R968 R950 R

44、970 R813 J894 J898 J893 J891 J807 J888 J887 J964 J969 J872 J860 J869 J870 J871 J867 J865 J967 R49 R949 R957R991 R975 R937 C947 C946 VR904VR903 C945 C943 C917 C930 C929 C928 C922 C925 C927 C907 J928 C940 J972 J941 C944 J853 J936 J926 J922 J914 TP1 J954 J948 J973 J953 J939 C959 J952 J956 J951 J950 J91

45、5 J942 J943 C919 J955 J938 C951 J940 C935 J927 J933 C909 J917 J921 J924 J918 J920 J923 J919 J925 R32 R31 R30 R29 R28 R27 R26 R25 R24 R23 R22 R21 R20 R19 R18 R17 R16 R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 53 52 EB R822 J892 J842 J890 J889 J968 J886 C826 J804 J805 J806 J809 J897 J895 J847

46、J884 R832 R39 J902 J974 J962 J966 J970 R810 R868 J846 J844 J843 J845 R811 R41 R999 J880 J900 J899 J879 R38 R998 R37 R997 R36 R996 R34 R58 R805 EB Q925 DECK BOARD Q917 EB Q918 EB Q926 EB Q914 EB Q912 EB Q909 EB Q908 EB Q901 EB Q911 D902 CP907 EBQ910 EB Q906 E E B B Q905 Q902 EB Q907 EB Q945 EB Q916 E

47、BEBEB EB Q924 CN811 D809 D810 D811 SW822 SW825 SW827 SW826 CP811 D819 CN805CN801 CN808 SW819 SW820 D830 SW821 CP807 G4 G5 D802 D612 FL801 IC801 CN806CN803CN907 D805 SW823 SW824 CP809 Q922 Q923 E E B B Q913 CN902 CN901 CN908 CP906 CP810 CP808 D808 SW805 SW804 SW803 SW802 SW801 D814 D813 D812 Q812 RM8

48、01 EB Q807 EB Q815 EB Q810 D803 D804 D818 EB Q808 CP804 EB Q3 EB Q809 CN809 Q927 EB Q811 D906 D904 D905 EB Q806 EB Q814 D817 D901 D903 EB Q903 EB Q813 EB Q803 D230 D231 CN209 SW810 SW811 SW812 SW813 SW815 SW814 SW816 SW817 SW818 CN201 D240 JK202 JK201 CN807 ENCODER PHONES MIC MIC AMP SECTION FRONT BOARD D241 D815 EB Q920 EB Q904 EB Q801 EB Q921 EB Q919 G906 112 2413 8 1 1 3 1 15 1 13 1 2 12 1 2 1 30 80 51 100 81 31 50 1 OUT GND +B 1 9 1 4 1 7 1 3 1 2 1 9 1