Kenwood-RXD251-cs-sm 电路图 维修手册.pdf

《Kenwood-RXD251-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Kenwood-RXD251-cs-sm 电路图 维修手册.pdf（37页珍藏版）》请在收音机爱好者资料库上搜索。

1、MINI HiFi COMPONENT SYSTEM RXD-251/301/301E/301W/ RXD-351/351E/351W/371S/A3 SERVICE MANUAL 1998-7/B51-5454-00 (K/K) 3763 (XD-251A3)* In compliance with Federal Regulations, following are reproduc- tions of labels on, or inside the product relating to laser product safety. *Refer to page 2 if you wan

2、t to know system configuration. KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM Panel(CD) * (A60-) Front glass * (A29-) Knob * (K29-) Knob (K29-7

3、512-08) Knob (K29-7519-08) Knob (K29-7518-08) Phone jack (E11-0386-08) Konb (K-29-7516-08) Cassette lid(R) * (A53-) Front glass(R) (B10-3451-08) Front panel * (A60-) Knob * (k29-) Knob (K29-7523-08) Knob (K29-7522-08) Knob (K29-7521-08) Cassette lid(L) * (A53-) Front glass(L) (B10-3450-08) Knob (K29

4、-7515-08) Knob (K29-7511-08) Mic jack (E11-0387-08) Knob * (K29-) Knob * (K29-) Knob (K29-7513-08) Illust. is RXD-351. * Refer to parts list on page 38. RadioFans.CN 收音机爱 好者资料库 FM indoor antenna (1) Europe and U.K.Other countries AM (T90-0815-08) loop antenna (1) AC (E03-0115-05) plug adaptor (1) Re

5、mote (A70-1260-08) control unit (1) Batteries (R6/AA) (2) Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.) (T90-0801-05) : K1P1Y1M1M2M3X1X2X3 (T90-0836-05) : E1E2E3E4T1T2Q1Q2 Operation to reset The microcomputer may fall in

6、to malfunction (impossibility to oper- ate, erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the microcomputer and return it to normal condition. Press the POWER key while holding the Stop

7、 (7) key of the CD section pressed, to switch off the power, and then switch the power on again after a few seconds. ?Please note that resetting the microcomputer clears the contents stored in and returns and to condition when it left the factory. SYSTEMMAIN UNITDESTINATIONSPEAKER XD-301RXD-301E3T2X

8、3LS-N301 XD-301ERXD-301EE4LS-N301 XD-301WRXD-301WQ2LS-N301 XD-351RXD-351E1T1LS-N351 XD-351RXD-351M1X1Y1LS-N371 XD-351ERXD-351EE2LS-N351 XD-351WRXD-351WQ1LS-N351 XD-A3RXD-A3K1P1LS-N351 XD-371SRXD-371SM2LS-N371 XD-251RXD-251M3X2LS-N351 RXD-251/301/351/371S/A3 2 CONTENTS / ACCESSORIES CONTENTS / ACCESS

9、ORIES .2 EXTERNAL VIEW.3 CONTROLS .4 BLOCK DIAGRAM .6 CIRCUIT DESCRIPTION.7 CD MECHANISM OPERATION DESCRIPTION .9 ADJUSTMENT. 11 WIRING DIAGRAM.15 PARTS DESCRIPTIONS .16 PC BOARD .17 SCHEMATIC DIAGRAM .23 EXPLODED VIEW .37 PARTS LIST.38 SPECIFICATIONS .47 Contents Accessories System configurationCau

10、tions RadioFans.CN 收音机爱 好者资料库 RXD-251/301/351/371S/A3 3 EXTERNAL VIEW Slide switch (S62-0083-08) AC power cord * (E30-) Cabinet * (A01-) Phono jack (E63-1073-08) Slide switch (S62-0057-08) Lock terminal board (E70-0108-08) Antenna terminal * (E70-) Illust. is RXD-351. * Refer to parts list on page 3

11、8. RadioFans.CN 收音机爱 好者资料库 RXD-251/301/351/371S/A3 4 CONTROLS CD unit DISC 1DISC 2DISC 3 0 76? ? 4 DISC SKIP 1234 5 6 7 Receiver unit ON/STANDBY INPUT STANDBY MIC 1 MIC 2 MIC VOLUME MIN.MAX. TIMER SET CLOCK DISPLAY /DEMO ROCK FLAT EX.BASS POP JAZZ BAND TUNING PHONES UP DOWN AUTO PRESET MANUAL PRESET

12、 AUTO/MONOTIMER 8 9 0 ! # $ % switch should be set as follows : 0dBs = 0.775V BEAT SW : OFF I. Cassette mechanism section (REC/PB head adjustment) 1 Demagnetization and cleaning Power OFF, demagnetization, cleaning play REC/PB head, erase head. capstan, pinch roller Demagnetize the REC/PB head by he

13、ad eraser. Clean the REC/PB head, erase head capstan and pinch roller with a cotton swab immersed in alcohol. 2 REC/PB head azimuth MTT-114, TCC-153 SCC-1727 10 kHz, -10dB (A)PLAY Azimuth adjustment screw In a setting wher the output is maximized, adjust the azimuth adjustment screw so that the Liss

14、ajous figure appearing on the oscilloscope screen comes near to a line slanted45 Note : The head should be installed in such a manner that it approaches the tape face. II. PC board adjustment Tape speed MTT-111 TCC-100 SCC-1727 3 kHz, -4 dB (A)PLAYSFR201 Adjust so that Frequency is 3 kHz at the cent

15、er of the tape. Playback level TCC-120 315 Hz 0dB (A)PLAY Approx. -5dBm reference level Recording level Put standard test tape (TCC-120) into B deck. Put standard blank tape into A deck. (A) Dubbing and playback. Approx. -5dBm reference level 13 ADJUSTMENT CASSETTE DECK SECTION Oscilloscope Frequenc

16、y counter AC voltmeter PIN2 IC401 (A) MAIN UNIT INSTRUMENTS CONNECTION RXD-251/301/351/371S/A3 14 ADJUSTMENT CD MECHA. UNIT R07 VR01 VC IC01 48pin RF R07A R06 FIG. (a) No.ITEM INPUT SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR PLAYER SETTINGS 1LASER POWER Apply the sensor section of optical p

17、ower meter on the pickup lens. On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 0.6 Vp-p or more. Press the PLAY/PAUSE key. Pickup FOCUS ERROR BIAS Test disc Type 4 Connect an oscilloscope as follows. CH1 : RF (R07A) GND : VC (IC01, 48 pin) FE

18、 BIAS VR01 Optimum eye pattern Press the PLAY/PAUSEkey. Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-08) 0.080.15 mW Optical power meter 2 (a) Laser powerALIGNMENT POINT CD SECTION RXD-251/301/351/371S/A3 15 WIRING DIAGRAM RXD-351(J,X1,X3,Y1,M1), RXD-A3(K1,P1), RXD-251(X2,M3), RXD-3

19、71S(M2) RXD-351E(E2), RXD-301W(Q2), RXD-351W(Q1) RXD-301(E3,T2), RXD-351(E1,T1), RXD-301E(E4), RXD-301E/351E RXD-301W/351W RXD-371S RXD-351 RXD-301 RXD-A3 RXD-251 TUNER UNIT TUNER UNIT CASSETTE DECK RECORD SWITCH MOTOR UNIT SWITCH A UNIT SWITCH D UNIT SWITCH C UNIT CD MECHA. UNIT CD MECHA. ASSY HEAD

20、PHONE MIC MIX UNIT AUDIO UNIT SUB WOOFER PRE AMP DISPLAY UNIT UNIT SENSOR CD CONTROL UNIT UNIT UNIT RXD-A3 TYPE RXD-371S(M2) RXD-351(M1,X1)/ RXD-301(X3)/ USED UNIT SWITCH B TRANSFORMER POWER AC CORD UNIT RXD-371S(M2) RXD-351(M1)/ USED RXD-251(M3,X2)/ ONLY MECHA. ASSY CN101 CN101 AM GND FM 75 GND JK1

21、01 CN08 CN402 FM 75 AM GND JK101 CN101 CN01CN01 CN03CN03 CN05 CN05 CN16CN16 CN06 CN06 CN18CN18 CN205 CN205 CN204CN204 CN206CN206 CN201 CN201 CN202 CN202 CN203 CN203 CN302 MIC1 MIC2 HEADPHONES CN301 CN401 CN601CN601 CN604CN604 CN403 CN403 CN302 CN502 CN502 CN605 CN605 JK601 SPEAKERS Rch Lch OUT JK501

22、 Rch 2 Lch 1 AUX JK401 CN701 GND (MW/SW) RXD-351 RXD-A3 RXD-251 RXD-371S RXD-351 RXD-301E RXD-351W CN19CN19 RXD-251 RXD-301 RXD-301W RXD-301E RXD-351 RXD-371S RXD-A3 S701 CN701 RXD-A3 ONLY RXD-351 RXD-301 RXD-A3 RXD-251 RXD-351W RXD-351ERXD-371S T/T MOTOR CN09 CN09 M RXD-301W RXD-301 RXD-351E RXD-35

23、1E RXD-351W RXD-301W RXD-301E 10 1 10 1 6 1 6 1 10 1 1 1515 1 66 11 15 33 11 51 15 15 22 11 1 1 8 8 6 1 6 1 4 1 4 1 31 31 51 51 21 21 31 1 17 1 17 33 11 3 1 3 1 1 4 1 4 13 5 1 5 1 6 1 6 1 1 6 CANADA U.S.A. P1 K1 COUNTRY DESTINATION AUSTRALIA GENERAL MARKET JAPAN PX M1 X3 J Y1 ABB. DESTINATION COUNTR

24、YABB. COUNTRY DESTINATION ABB. AUSTRALIAX2 GENERAL MARKETM3 GENERAL MARKET DESTINATION COUNTRY M2 ABB. ABB. U.K. DESTINATION COUNTRY EUROPE T1 E1 DESTINATION COUNTRY EUROPE ABB. E4 DESTINATION COUNTRY RUSSIA ABB. Q1 2 1 2 1 ABB. X2 M3 AUSTRALIA GENERAL MARKET COUNTRY DESTINATION T2 E3 ABB. U.K EUROP

25、E DESTINATION COUNTRY AUSTRALIAX3 Q2 ABB. RUSSIA DESTINATION COUNTRY E4 ABB. EUROPE COUNTRY DESTINATION EUROPEE1 T1U.K J ABB. JAPAN COUNTRY DESTINATION AUSTRALIA GENERAL MARKET PXY1 M1 X1 M2 ABB.COUNTRY GENERAL MARKET DESTINATION P1 K1 ABB. CANADA U.S.A. DESTINATION COUNTRY 6 5 4 2 3 1 11 10 9 8 7 P

26、9 T3 P5 P4 P8 P3 P2 P1 P6 P3 P1 F703 F702 P2 P7 P4 P6 P8 240V 220- 110- 120V : AC100V 50/60Hz : AC230V 50Hz : AC240V 50Hz : AC220V 50Hz 50/60Hz : AC110-120V/220-240V : AC120V 60Hz (Y,M) P7 (T,E) (X) (Q) (K,P) T3 P5 P9 AC1 AC2 (J) EUROPE U.K. GENERAL MARKET PX AUSTRALIA E1 T1 X1 M1 Y1 ABB. DESTINATIO

27、N COUNTRY JAPANJ ABB. E3 T2 X3AUSTRALIA COUNTRY U.K. EUROPE DESTINATION K1 P1 ABB. CANADA U.S.A. DESTINATION COUNTRY ABB.COUNTRY DESTINATION M3 X2AUSTRALIA GENERAL MARKET Q1 ABB. RUSSIA COUNTRY DESTINATION ABB. DESTINATION COUNTRY EUROPEE2 DESTINATION COUNTRYABB. GENERAL MARKETM2 16 ED 118 18 1 AUST

28、RALIAX1 DESTINATION COUNTRY RUSSIAQ2 ABB. ABB. EUROPE U.K. DESTINATION COUNTRY E3 T2 EUROPEE2 DESTINATION COUNTRYABB. DESTINATION COUNTRY EUROPE ABB. E2 COUNTRY DESTINATION RUSSIA ABB. Q1 DESTINATION COUNTRY RUSSIA ABB. Q2 E4 ABB.COUNTRY EUROPE DESTINATION RXD-251/301/351/371S/A3 16 PARTS DESCRIPTIO

29、NS X201 CF105 C123 C122 J135 R130 C157 C118 C121C147 J201 R123 C204 R205 R201 R114 R113 C114 C205 C117 J115 J143 J105 J104 C149 R118 C108 R204 R203 R108 R141 R106 R105 R107 L103 J117 C107 R112 C154 C116 R202 TC102 L104L201 TC201 C148 C124 J118 C160 C126 C127 C138 J150 R132 R140 R122 C150 CF102 CF101

30、 R149 J151 J149 C201 R208 CF103R207 D201 Q201 Q202 Q205 Q204 D111 D112 C128 R145 C156 C135 C202 C206 R134 Q203 Q101 Q106 TC202 L106 C102 J144 L101 FE101 C103 G J104 C106 D101 D108 D102 CF106 1 8 1 4 J108 J107C101 R104 L102 R121 C137 R103C203 R206 C139 C140 C165 C132 R128 C126 C133 R129 R127 R212 C13

31、1 R220 C141 C142 C125 R131 J193 C220 J175 R211 C130 C129 R119 R210 D202 J148 C210 C209 C152 C106A C144 12 1 13 24 12 1 10 1 13 24 EB EB EB EB C153 C211 R133 TP1 T101 12 TP2 12 C151 C112 Q110 Q111 D110 J123 J138 J139 J145 B162 J147 J121 J120 J122 J119 J131 J129 J146 J192 J126 C161 C164 EB E C143 C215

32、 E B B EB J125 J130 J124 J113 L110 J111 L202 T102 L105 CF104 J176 J134 J133 J112 J110 J106 J142 JK101 J202 J116 J177 J140 J141 J190 L107 L108 C111 J191 R115 R213 J128 C213 C214 C212 R137 Q105 R214 C207 L203 C208 C145 J132 J127 R120 J136 R146 J185 CN101 Q108 Q107 Q109 IC201 IC102 E B E B E B G S D E

33、B 17 Refer to the schematic diagram for the value of resistors and capacitors. ACEBD 2 1 3 5 7 4 6 PC BOARD (Component side view) R146 R130 J126 J136 J137 R122 C108 C149 R118 R161 R108 C109 C105 C106 C110 C111 L101 D106_1 R109 C103J123 R111 R106 R107 J168 J165 R110R101 J100 C150 R145 IC101 Q106 C102

34、 TC102 R134 C116 R114 R113 C114 C171 C134 C138 R149 C126 R123 C147 C121 C160 C124 C157 C214 C213 C220 C137 CF105 C128 T102 C135 R102 D112 D111 1 9 C101 TC102 L102 R103 C104 TC101 J106 C107 C117 TC103 L105 C212 J139 C211 R132 J116 C144 C143 R133 C100B C155 JK101 J101 R138 J164 C145 C166 C100A C119 G

35、G C112 R104 R112 C153 R214 C208 C210 C209 R140 R121 C129 14 C139 C140 R119 C127 CF103 R212 D202 R210 R211 J107 R105 X201 12 1 13 24 12 1 10 1 13 24 TP1 21 TP2 21 C161 C162 D110 J128 J155 J122 J184 J180 J178 C215 J153 J113 R220 J124 J118 J162 J171 J127 CF104 R213 J117 C165 C164 C151 R115 J177 L108 J1

36、57 L107 J115 J158 J114 J176 C130 C125 R131 C141 Q109EB T101 CF102 CF101 J109 J110 J108 C118 J111 J167 J179 C221 J175 C222 C223 R217 R218 C132 C133 R120 R129 R127 R128 R126 C122 C123 R216 C152 C131 EB Q105 EB EB Q108 Q107 C207 C142 J131 J185 CN101 IC201 IC102 G S D B E Q101 E B D105 Q102 D106_2 D101

37、D102 L103 L203 Q110 EB Q111 EB TUNER UNIT (K1P1Y1M1X1X2M3X3) TUNER UNIT (E1T1Q1E2T2Q2E3E4) C123 C122 J129 J128 R146 C157 C121 R123 C117 R154 J135 R209 C203 R206 J136 J164 C202 J117 J154 R204 R157 R161 R118 C149 J137 C171 D105 J134 L106 C106 C102 C105 R109 R111 C110 R106 R107 C108 R108 R110R101 J100

38、C150 C100A R145 C109 IC101 C103 TC101 C111 R102 TC102 TC201 R100 L101 R201 C164 J181 C201 C218 J127 C124 R120 C160C126 R149 C138 C214 C213 R122 CF102 CF101 C134 R207 C205 R160 J112 CF103 C118 C215 C137 C128 R203 C135 J182 L204 R113 C116 R162 1 9 C165 R208 R151 R202 R155 Q101 TC103 C107 R114 C166 C16

39、9 D108_1 C167 C112 C210 C209 R140 J168 C145 J165 R138 C153 C216 C212 C144 C143 R133 J180 C155 C100B C211 J139 C217 R112 J166 R132 C101 L102 L201 L104 C119 JK101 C113 R134 R150 AG U U A R103 J106 C104 R104 R105 J107 R121 CF105 14 R205 C204 C139 C140 R212 C170 R158 C151 J177 C130 C125 R115 L108 L107 C

40、131 C152 R119 C129 J184 D202 R210 R211 C141 R131 C208 X201 R214 12 1 13 24 12 1 10 1 13 24 EB EB TP1 21 TP2 21 C162 C161 Q115 D110 J155 J156 J172 J178 R130 J125 J157 J158 J114 J113 J124 R213 R219J122 J171 J162 J118 J191 J190 J115 C175 C174 EB Q116 EB Q109 EB C127 T102 L105 T101 L202 TC202 CF104 J167

41、 J153 J109 R153 R156 J111 J179 J110 C132 R128 R126 J126 R218 R217 R216 C133 J131 R129 R127 J123 C220 EB Q113 EB Q201 EB Q105 Q112 EB EB Q204 EB Q110 Q106 Q111 EB Q114 EB Q108 EBQ107 Q202 E B Q102 E B Q100 E B Q203 D108_2 C207 C142 J132 J183 J185 CN101 IC201 IC102 GSD E B D106_1 D106_2 D101 D102 L103

42、 L203 L205 18 FGIHJ 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view) TUNER UNIT : RXD-371S (M2) Q418 Q403 IC401 D402 D714 D715 D502 D501 D505 D212 D211 D203 D213 D209 D201 D704 D705 D703 D702 D204 D503 D504 D706 D712 D581 D701 D20

43、2 D205 D585 D208 D206 D711 D707 D710 D709 D401 C488 C487 C431 C239 C527 JK502 C203 C205 C201 C217 C209 C223 C218 C245 C230 L201 C244 C231 C242 C232 C210 C213 C202 C240 C206 C204 C427 C489 C483 C421 C429 C423 C417 C415 C214 C224 C216 C703C704 C706C705 C515 C530 C512 C543 C526 C525 C541 C511 C731 C711

44、 C502 C503C504 C505 C736 C722 C484 C405 C501 C730 C728 C723 C716 C712 C714 C426 C404C403 C430 C432 C420 C418 C414 C416 C428 C422 C718 C729 C720 C510 C506 C542 C507 C516 C520 C522 C514 C513 C215 C528 C233 C246 C235 C708 C709 C710 C707 C734 C741 C459C458 C482 C450 C460 C461 C453 C451 C481 C439 C452 C4

45、40 C402 C401 CN402 C419 C433 R421 GND R419 R417 R461 R459 R457 R446 R447 R444 R485 4 1 8 1 R213A R486 R487 R480 R321 R213 R211 R205A R205 R229 R231 R202 R227 R228 R254 R230 R232 R206 R217 R218 R220 R233 R201 3 1 R206A R263 R264 R241 R508 R484 R535 R536 R547 R545 R549 18 R527 C P8 P7 P2 P4 P6 DC D E

46、F F E A A B B R701 R706 R708 R705 R524 L501 L502 C509 R528 416 32 RL501 5 R523 R505 R700 P9 T3P5 P7 P1 P3 F702 F703 P6 P8AC1 AC2 R502 B E R551 R543 R552 C508 C732 C701 C518 C517C531 R237 R257 R256 R249 R262 R242 R537 R538 R209 R255 R219 R268 R235 R455 R738 R481 R741 R422 R498 R497 R742 R437 R435 R43

47、9 R440 C434 C445 SW201 C721 C733 C435 14 1 87 C437 C454 C455 C413 C412 C438 C409 C448 C719 C715 C713 C724 CN605 61 CN206 1 L202 4 C447 E B Q703 E B Q706 E B Q503 Q502 Q414Q413 AUX E B Q705 E B Q501E B Q505 E B Q220 E B E B Q217 E B Q209 E 1 1 1 2 8 B Q218 E B SFR201 Q216 Q508 E B Q512 E B Q511 E B Q207 E B Q201 PHONES POWER E B Q202 IC201 E B Q219 E B Q211 E B Q709 E B Q210E B Q404 E B Q714 E B Q713 E B Q408 IC404 E B Q411 E B Q409 IC402 E B Q405 E B Q412 E B Q410 E