Kenwood-CT-401-HU-Service-Manual 电路图 维修手册.pdf

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1、STEREO DOUBLE CASSETTE DECK CT-401/403 KXF-W1030/W1030-S KXF-W3030/W3030E/W3030-S SERVICE MANUAL 2000-2/B51-5600-00 (K/K) 3473 70% (dB) 50+3+6(dB) DPSS TAPE B AUTO REVERSE TAPE A AUTO REVERSE POWER - ON OFF 1 #7#7 18PAUSEREC/ARM REC LEVEL MINMAX PUSH/OPEN 0 PUSH/OPEN 0 REV.MODE DOLBY NRDUBBING DUBBI

2、NGDOLBY NRpO PEAK LEVEL METER LINE IN RECPLAY LINE OUT SYSTEM CONTROL L R Power button * (K27-) Cassette window (L) (B03-3862-08) Volume knob * (K27-) LED window (B03-3865-08) Cassette window (R) (B03-3863-08) Player button (L) * (K27-) Cassette door (L) * (A53-) Front panel * (A60-) Cassette door (

3、R) * (A53-) Player button (R) * (K27-) AC power cord * (E30-) RCA jack (E11-0917-08) Phone jack (E11-0918-08) * Illustration is CT-403/KXF-W3030. * Refer to parts list on page 13. Metallic cabinet * (A01-) RadioFans.CN 收音机爱 好者资料库 Audio (E30-0505-05) cord. (2)AC (E03-0115-05) plug adaptor. (1)System

4、(E30-2816-05) control cord . (1) (Except for Europe and Australia) For the unit with an European AC plug in areas other than Europe. CT-401/403/KXF-W1030/W3030 2 CONTENTS / ACCESSORIES CONTROLS CONTENTS / ACCESSORIES . 2 CONTROLS .2 CIRCUIT DESCRIPTION.3 ADJUSTMENT.4 PC BOARD . 5 SCHEMATIC DIAGRAM .

5、 7 EXPLODED VIEW .12 PARTS LIST.13 SPECIFICATIONS .Back cover Contents Accessories DISPLAY DOLBY NR reference level (dB) 50+3+6(dB) DPSS TAPE BTAPE A POWER - ON OFF 1 3737 18PAUSEREC/ARM REC LEVEL MINMAX PUSH/OPEN 0 PUSH/OPEN 0 DOLBY NRDUBBING DUBBINGDOLBY NR (dB) 50+3+6(dB) DUBBINGDOLBY NR PEAK LEV

6、EL METER PEAK LEVEL METER FULL LOGIC CONTROLFULL LOGIC CONTROL 210 34567 89 ! DISPLAY 1 Deck A Playback-only tape deck. 2 POWER switch: Press to turn power - ON and OFF. 3 Deck A operation keys 3 key : Play key. 1 key: Rewind key. (for fast winding of tape toward the left reel seen from you) 33 key:

7、 Fast forward key (for fast winding of tape toward the right reel seen from you) 7 key: Stop key. 4 Cassette holder (Deck A) Press the area marked PUSH/OPEN 0 to load or eject a tape. 5 Cassette holder (Deck B) Press the area marked PUSH/OPEN 0 to load or eject a tape. 6 Deck B operation keys 3 key

8、: Play key. 1 key: Rewind key (for fast winding of tape toward the left reel seen from you) 33 key: Fast forward key (for fast winding of tape toward the right reel seen from you) 7 key: Stop key REC/ARM key: Press in stop mode to start recording or press in record mode to let the recording pause af

9、ter leaving a non- recorded blank of 4 seconds. indicator : (Recording indicator) 8PAUSE key: Press to let recording pause temporarily. 7 REC LEVEL control: Adjusts the recording level. 8 DUBBING key: Press to start tape dubbing. 9 DOLBY NR key: Press to select the Dolby Noise Reduction mode. 0 Deck

10、 B Tape deck which is capable of both playback and recording. ! DOLBY NR indicator DUBBING indicator 1 Deck A Playback-only tape deck. 2 POWER switch: Press to turn power - ON and OFF. 3 Deck A operation keys / indicators , # keys : (Play keys) , # indicators : (direction indicators) Tapes are playe

11、d in the directions indicated by their respective indicators. 1 key: Rewind key (for fast winding of tape toward the left reel seen from you) 33 key: Fast forward key (for fast winding of tape toward the right reel seen from you) 7 key: Stop key 4 Cassette holder (Deck A) Press the area marked PUSH/

12、OPEN 0 to load or eject a tape. 5 Cassette holder (Deck B) Press the area marked PUSH/OPEN 0 to load or eject a tape. 6 Deck B operation keys , # keys : (Play keys) , # indicators : (direction indicators) Tapes are played in the directions indicated by their respective indicators. 1 key: Rewind key

13、(for fast winding of tape toward the left reel seen from you) 33 key: Fast forward key (for fast winding of tape toward the right reel seen from you) 7 key: Stop key REC/ARM key: Press in stop mode to start recording or press in record mode to let the recording pause after leaving a non- recorded bl

14、ank of 4 seconds. indicator : (Recording indicator) 8PAUSE key: Press to let recording pause temporarily. 7 REC LEVEL control: Adjusts the recording level. 8 DOLBY NR key: Press to select the Dolby Noise Reduction mode. 9 DUBBING key: Press to select the DUBBING mode. 0 REV.MODE key: Press to select

15、 the REVERS mode. ! Deck B This deck is capable of both playback and recording. Reverse mode indicators # DOLBY NR indicator $ DUBBING indicator DISPLAY DOLBY NR reference level DISPLAY (dB) 50+3+6(dB) DPSS TAPE B AUTO REVERSE TAPE A AUTO REVERSE POWER - ON OFF 1 #7#7 18PAUSEREC/ARM REC LEVEL MINMAX

16、 PUSH/OPEN 0 PUSH/OPEN 0 REV.MODE DOLBY NRDUBBING DUBBINGDOLBY NRpO (dB) 50+3+6(dB) DUBBINGDOLBY NRpO 2 34567 8 90 #$ 1! PEAK LEVEL METER PEAK LEVEL METER CT-401/KXF-W1030CT-403/KXF-W3030 RadioFans.CN 收音机爱 好者资料库 Pin No.Pin NameI/ODescription Active HL 1AC-CHKIPower failure input.AC onAC off 2,3VSSIC

17、onnected to ground. 4SYS-DATAISystem control data in. 5SYS-BUSYI/OSystem control busy output. 6DOLBYODolby NR output.offon 7METER-GAINOMeter amplifier gain control.otherDPSS 8REC/PBODolby NR REC/PB control.PBREC 9PB-EQ/NORMALOPB EQ. switch control. 70u120u 10REC-EQ-TYPE 1ORec EQ. switch (TYPE 1) con

18、trol. 11REC-EQ-TYPE 2ORec EQ. switch (TYPE 2) control. 12SYS-DOOConnected with system data. 13LED-A-FWD PLAYOLED control port of A FWD PLAY. 14LED-A-REV PLAYOLED control port of A REV PLAY. 15LED-B-REV PLAYOLED control port of B REV PLAY. 16-20NC-Unused. 21SOL-AOA deck solenoid control. 22SOL-BOB de

19、ck solenoid control. 23VSS-Connected to ground. 24VDD-Power supply(+5.0v). 25MECHA-VCC-Control port of power supply for deck.PlayStop 26RECOControl port of REC/PLAY.RecOther 27REC-MUTEOMuting control port for recording.OtherRec 28A/BOControl port of A or B deck.A playOther 29DUBBINGOUnused. 30BIASOB

20、ias control port.OtherRec 31INPUT-MUTOInput muting control.offon 32LINE-MUTEOLine muting control.offon 33A-REELIReel puls input of A deck. 34HALF-SWIHalf switch input of A deck. 35A-MODE-SWIMode switch input of A deck.StopPlay 36B-REELIReel puls input of B deck. 37B-HALF-SWIHalf switch input of B de

21、ck. 38B-MODE-SWIMode switch input of B deck. 39B-REC-FWD-SWIForward rec detection switch input. 40B-REC-REV-SWIReverse rec detection switch input. 41DOOData output to IC601(BU2099FV). 42SI-Unused. 43CLKOClock output to IC601(BU2099FV). 44LCKOIC601(BU2099FV) LCK. 45OEOIC601(BU2099FV) OE. 46NC-Unused.

22、 47SDAOEE PROM(IC304) SDA. 48SCLOEE PROM(IC304) SCL. 49NC-Unused. 50RESETIReset signal input. 51VDD-Power supply(+5.0v). 52NC-Unused. 53VSS-Connected to ground. 54CF 6.0 MHz-Main system clock. 55CF- 6.0 MHz-Main system clock. 56VDD-Power supply(+5.0v). 57-59K1-K3IKey(1-3) input. 60MODE-SWIMode switc

23、h input. 61NC-Unused. 62A-CRO2IA CrO2 switch input.CrO2Nor 63B-CRO2IB CrO2 switch input.CrO2Nor 64METER IInput port of level meter. 1. Pin description of microprocessor. LC865612A(IC302) CT-401/403/KXF-W1030/W3030 3 CIRCUIT DESCRIPTION 2. Pin description of LED driver. ( BU2099FV ,IC601)3. Key matri

24、x Pin No.Pin NameDescription Active Remarks PortSW1SW2SW3SW4SW5SW6 HLK1A FWD* A REVA AA - 6L1Level MeterX (Pin 57)PLAYPLAYSTOPFFREW 7L2Level MeterX K2B FWD* B REVBBBREC/ 8L3Level MeterX (Pin 58)PLAYPLAYSTOPFFREWARM 9L4Level MeterX K3* REV. DUBBING DOLBYB - 10L5Level MeterX (Pin 59)MODENRPAUSE 11A-RE

25、V1 WAY/1WAYXW3030 only * KXF-W3030 only 12B1WAY/REVXW3030 only ( ) u-COM port 13CREV/REVXW3030 only 14B-FWDB-FWDXW3030 only 15RECREC LED X 16NRDOLBY NR LED offon 17DUBBINGDUBBING LEDoffon : LED lights on X : LED lights off 4. Mode SW PortSW1SW2SW3 (Pin 60)1 WAY + 1 WAY1 WAY + REV.REV. + REV. ( ) u-C

26、OM port RadioFans.CN 收音机爱 好者资料库 CN105 To Frequency counter CT-401/403/KXF-W1030/W3030 4 ADJUSTMENT (b) AZIMUTH ADJUSTMENT (c) (a) AZIMUTH ADJUSTMENT SYSTEM CONNECTIONS No.ITEM INPUT SETTINGS OUTPUT SETTINGS CASSETTE DECK SETTINGS ALIGNMENT POINT ALIGN FORFLG. CASSETTE DECK SECTIONTAPE: NORMAL, DOLBY

27、: OFF, INPUT: LINE IN0 dBs = 0.775 V I. REC/PLAY HEAD 1 DEMAGNET- IZATION POWER OFF Remove the cassette door. REC/PLAY head Demagnetize the REC/PLAY head with a head demagnetizer. 2 CLEANING PLAY REC/PLAY head, erase head, capstan pinch roller Clean the REC/PLAY head, erase head, capstan and pinch r

28、oller using a cotton swab slightly damped with 3 AZIMUTH (A) MTT114, TCC-153 0 kHz, -10 dB (B)PLAY Azimuth adjustment screw Maximum output. (a) II. DC BOARD 1 TAPE SPEED (A) MTT-111, TCC-110 3 kHz (B) PLAYSFR301 Adjust the tape speed so that a 3 kHz signal is produced at the center of (b) (c) III. P

29、C BOARD PLAYBACK LEVEL MTT-150 400 Hz (200 nWb) (B)PLAY DECK B SFR101 (L) SFR102 (R) Output level : 1 dBs BIAS REC BIAS OSC FREQUENCY RecordingL107105 kHz 3 kHz Record 1kHz and 10kHz in alternation and playback. Record and playback at maximum REC volume position. CURRENT (A) 1 kHz, -20 dBs 10 kHz, -

30、20 dBs (B) SFR105 (L) SFR106 (R) Record 1 kHz and 10 kHz in alternation and adjust the variable resistors which control the bias current so that the playback level is obtained 0 dBs 3 dBs. RECORD LEVEL (A) 1 kHz, -20 dBs (B) SFR107 (L) SFR108 (R) 0 dBs 3 dBs alcohol. the tape. LINE IN RECPLAY LINE O

31、UT SYSTEM CONTROL L R (A)(B) AC voltmeterAG Oscilloscope AC voltmeter Frequency counter KXF-W3030 KXF-W1030 ACEGIBDFHJ 2 1 3 5 7 4 6 1 1 1 I I G G O I 1 15 16 1 1 15 2 2 9 1 110-120V220-240V 110 2011 9 G O O O G I 3 3 1 15 2 EB EB EB EB EB EB EB 1 15 2 21 31 EB BE BE BE BE BE BE BE BE BE BE BE BE BE

32、 LRLR PLAYREC AC SELECT SWBE BE BE BE EB EB EB EB EB EB 21 51 51 12 BE BE BE 13 3 3 1 47 SYSTEM CONTROL LINE OUT POWER REC LEVEL LINE IN Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view) 56 ABDFHJCEGI 2 1 3 5 7 4 6 8 7 6 5 4 3 2 1 GND VCC 9 10 11

33、 12 13 14 15 16 T1/T2 SW EQ SW 20K R107 18K R111 330K R105 C113 330P 1K SFR101 10u50 + C111 47u16 C123 + R118 47K 3 2 13 2 1 5 4 3 2 1 L R 5 4 3 2 1 12 R101 10 12 10 R102 4.7u50 C116 4.7u50 + C115 C118 820P C117 39K R110 SFR102 1K R106 330K18K R112 20K R108 1K R117 1u50 C124 + C114 330P 10u50 C112 +

34、 0.01 C110 330P C108 4.7u50 + C120 4.7u50 + C119 R109 39K 0.01 C109 C107 330P C101 39K R245 C102 R246 39K 470u16 + C103 1 C106 0.1 C105 C197 0.1 0.1 C104 GND2 3.3K R113 2.2K R123 10mH L101 C127 270P 2200P C125 R124 2.2K3.3K R114 L102 10mH C128 270P2200P C126 C122 0.1 100u16 C121 + 330 1/4W R125 RY10

35、1 3 4 5 10 8 1 12 9 390 R104 1/4W + 22 1112 R103 1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 1u50 C135 + R137 18K R126 10u50 C133 + 0.1 C137 10u50 C139 + 100K R139 1u50 + C129 C136 1u50 + C130 R142 1K C145 22u25 + 10u50 C140 0.1 + 1u50 C138 R140 100K + 100u16 C134 + R138 33K 1u50 + C143 100K R135 150K

36、R129 2.7K R131 1u50 + C141 2.4K R127 L103 L104 + R132 2.7K R136 C142 1u50 2.4K R128 R130 100K C144 150K 1u50 + R133 4.7K 4.7K R134 22 21 20 19 18 17 16 15 14 13 12 GP GH GL GPCAL GHCAL RECCAL IN IREF BOOST VCC OUT(L) 1 2 3 4 5 6 7 8 9 10 11 FQ F/Q FM FPCAL D.GND REC MUTE IN GND BOOST VEE OUT(R) R236

37、 10u50 C193 + 39K 100P 10u50 + + 47u16 2.2u50 C178 + 47K R234 47K R198 R239 R199 100u16 C173 + 0.01 C172 39 R197 1/4W C179 2.2u50 + C177 1K R196 3.3K R194 1u50 C176 + 2.2K R192 10K SFR108 3.3K R193 1K R195 1u50 C175 + 10K SFR107 2.2K R191 2.2K R189 2.2K R190 100P 68K R203 51K R209 150K R208 22K R201

38、 100K R202 R210R211R212 R20456K R206 68K R205 4.7K R207 39K R241 150K R240 4.7K R177 R1761 1/2W R244 R242 1u50 C170 + R243 R178 3300P C169 27K R175 27K R174 3300P C167 6800P C168 3.3 R173 22u25 C165 + 0.015 C166 C180 C192 C194 10MH L106 C162 220P L105 10MH C161 220P 2.2u50 + C164 2.2u50 + C163 100K

39、R181 100K R182 R171 10K R172 10K 34 52 16 7 C171220K SFR106 220P C160 220P C159SFR105 220K 22K R116 28 11 33 22 6 8 9 26 L107 4.7K R238 1/4W 47u16 C191 + 150K R148 R147 150K L G R 10K R391 2.2u50 C307 + 4 1 3 2 5 8 7 6 3.3K R390 2.2u50 C339 + R308 100K 1K R392 100K R382 1u50 C338 + 2.7K R340 1u50 C3

40、06 + C337 47u16 + R381 10K R387 5.6K 5.6K R388 32 31 1 2 11 27 10 30 R383 10K R307 220 1/4W 100u16 + C335 100u16 C158 + R122 100 C132 1u50 + 1/4W 1u50 C131 + +B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A-HALF SW A-MODE SW A-PHOTO OUT A-SOL. GND A CRO2 VCC 12V MOTOR H MOTOR L B-HALF SW B-MODE SW B-PHOT

41、O OUT B-SOL. REC SW(FWD) REC SW(RVS) H L 470 B CRO2 4.7K R247 4.7K R248 +9.8V 312 4 7 6 231 46 7 +21.6V+21.6V+21.6V +12V +12V +12V +12V +12V+12V +12V +12V IC101 IC102 IC104 IC301 MAIN PCB CASSETTE DECK MECHANISM ASSY CN106CN106 Rch Lch Rch Lch ERASE CASS-(A) PLAY CN104CN104 CASS-(B) REC/PLAY CN101 C

42、N102 Q102 Q101 PB (Rch) (Lch) PB D101 Q103 D102 CN105CN105 CN103 REC CONT. RELAY Q113 FILTER FILTER Q114 Q141 Q135Q136 REC MUTE REC LEVEL L REC LEVEL R Q142 Q137 Q138 CrO2 NORM SW CT-401/ KXF-W1030/-S only Q120 Q123 Q124 Q122 Q121 DOLBY (B) NR PB EQ. AMP BIAS (Lch) ADJ.ADJ. (Rch) BIAS BIAS COIL OSC

43、BIAS OSC BIAS CN107 Q313 D306 D327 D328 D330 D329 D331 METER DRIVER Q304 Q303 CONT. LINE MUTINGINPUT MUTING CONT. D105 REC AMP EQ IC101: TA7784P IC102CXA1551P: IC104 IC103,301 CXA1598S NJM4558DX : : IC304 IC305,306 IC303 IC302 BR24C01A UPC7812H or : : S806D LC865612A-5P27 : : IC307NJM78M05A: 2SC2060

44、Q120 Q303,304 Q137,138,141,142,307,309,311,313 Q121,122 DTC124ES: 2SC2001L : : Q113,114,123,124,302 Q111,112,115-118 Q101-103,135,136 2SC945(P) or 2SC2878A: : DTC114TS: DTA144ES: MTZJ4.7B MTZJ5.6B W02G MTZJ10B 1SS133 D323 : : D318 D311 D101,102,301-310,315-317 D105: : : 319-322,324,325,327-331 B LIN

45、E GND LINE SIGNAL LINE RECORDING LINE A-HALF A-MODE A-SOLENOID B-MODE SW B-HALF SW REC SW(RVS) REC SW(FWD) MOTOR B-SOLENOID INTERRUPTER INTERRUPTER B-PHOTO A-PHOTO Q306,308,310: 2SA934R NJM78M12FA 2SC945(Q) 10.2V2.3V 2.2V 2.2V 2.2V 2.2V B PLAY A PLAY : 2.4V : 0V 2.2V 2.2V2.2V2.2V 2.2V2.3V PLAY REC :

46、 0V : 4.3V PLAY REC : 21.6V : 0V : 4.9V REC 5.0V 0.4V 5.1V 0V 1.2V 5.0V 5.0V 5.0V 4.9V 0.4V 5.1V 1.7V 2.3V 6.1V 1.7V 6.1V 2.3V 5.0V5.0V 5.6V 5.4V 1.2V1.2V 5.6V 5.6V 5.6V 11.3V 0V 0V TAPE CrO2 : 4.9V : OV 1.2V 1.2V 4.4V 1.2V 1.2V 1.2V 5.3V 11.3V 12.1V : 5.1VREC 21.6V : 0.7V: 5.7V RECPLAY/STOP REC : 0

47、V : 0V : 5.7VTAPE HI TAPE NOR TAPE NOR TAPE HI: 0V : 4.4V PLAY REC : 5.0V 11.4V 5.7V 5.7V PLAY REC STOP REC/PLAY : 3.8V : 3.7V : 0V PLAY REC : 0V : 4.9V REC : 3.8V : 4.3V REC/PLAY STOP : 4.9V : 0V 5.6V 5.5V 12.1V 9.8V 5.1V 12.1V TKMOQSLNPR 5 6 8 4 7 R151 10K R153 100K R157 47K C195 100P R155 43KC149

48、 220P 1K R159 1u50 + C153 2.2u50 + C147 10K R145 5.6K R217 100u16 + C151 R161 5.6K R167 R163 18K C155 2200P 100u25 C152 + R165 100 2.2u50 C148 R218 5.6K R146 10K 100K R154 10K R152 R158 47K R164 18K C156 2200P 220P C150 C196 100P R156 43K 3 2 1 C154 + 1u50 R162 5.6K R160 1K R166 100 + 5 4 3 2 1 L IN R IN GND 5 4 3 2 1 56K R169 56K R170 33K R179 33K R180 5.6