Kenwood-XSE7-tape-sm 电路图 维修手册.pdf

《Kenwood-XSE7-tape-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Kenwood-XSE7-tape-sm 电路图 维修手册.pdf（15页珍藏版）》请在收音机爱好者资料库上搜索。

1、SYSTEM CONTROL REC IN PLAY OUT LR Phono jack (E63-0046-15) Rectangular receptacle (E08-0311-05) Power cord bushing (J42-0083-05) AC power cord * (E30- ) STEREO AUTO REVERSE CASSETTE DECK X-SE7/SE7(G)/SE9 SERVICE MANUAL 1997-8/B51-5342-00 (K/K) 3209 Illustration is X-SE7. * Refer to parts list on pag

2、e 14. Refer to X-E9 and X-SA7 service manuals (B51-4926-00/B51-5214-00), if you require in detail. 1? ? 7 2 8 3 stereo auto reverse cassette deck on/standby CRLS rev. mode Dolby NRBC 0 7 front loading mechanism 7 ” ? Panel (A29-0873-03) Panel * (A60-) Escutcheon (B07-2363-04) Panel (A60-1202-03) Kno

3、b (K29-6744-04) Sub panel (A22-1779-11) Indicator (B12-0319-04) Indicator (B12-0319-04) Knob (K29-6745-13) X-SE7(K) 1P 97.11.29 4:13 AM yW 2 RadioFans.CN 收音机爱 好者资料库 X-SE7/SE7(G)/SE9 2 CONTENTS / ACCESSORIES DISASSEMBLY FOR REPAIR CIRCUIT DESCRIPTION CONTENTS / ACCESSORIES . 2 DISASSEMBLY FOR REPAIR.

4、2 CIRCUIT DESCRIPTION.2 CONTROLS .3 ADJUSTMENT.4 PC BOARD . 5 SCHEMATIC DIAGRAM . 7 EXPLODED VIEW .11 PARTS LIST.14 SPECIFICATIONS .Back cover Contents Accessories # Power does not turn on and tray does not come out. 1. Turn the pully in the direction of the arrow in the draw- ing with a finger (1).

5、 2. If the tray comes out to the front side, pull out the tray by hand forward the front (2). Audio cord (2) (E30-0615-05) System control cord (1) (E30-2628-05) LED ITEM POWERDOLBY BDOLBY C RVS MODE UNDER ADJUSTMENT PB CALIB ERR L R PB LEVEL ERR L R REC CALIB ERR L R REC LEBEL ERR L R BIAS DAC ERR L

6、 R PB ALL OK ALL OK 8 Correction of circuit description LED indication state. X-SE7(K) 1P 97.11.29 5:00 AM yW 3 RadioFans.CN 收音机爱 好者资料库 1 Tape tray Load a cassette tape here. 2 “on/standby” key/indicator Press to turn the power on/off (standby). This key is not used when the unit is connected using

7、the system connection. 3 Dolby NR key/indicators Press to switch the Dolby Noise Reduction on/off. 4 Play (2 3) keys/operation indicators During stop and pause: the tape direction lights red. During playback and recording: the tape direction lights green. During fast forward and rewind: the tape dir

8、ection flashes green. 5 Open/close (0) key Press to open the tape tray when loading or unloading tape. 6 Stop key (7) 7 Pause (8) key/indicator 8 Record () key/indicator Press to start recording. When pressed during recording, the tape stops after leaving a non-recorded section (blank) of about 4 se

9、conds. 9 Fast forward and rewind (1 ) keys 0 “rev. mode” key/indicator Press to switch the tape reverse mode (two-way or one- way) of the deck. ! CRLS key/indicator Press to set the recording level automatically according to the recorded music source. stereo auto reverse cassette deckX-SE9 on/standb

10、y rev. mode Dolby NRCRLSBC ”? ? 1 0 2 7 3 ? 8 1 2 4 5 6 8 9 0 ! 3 7 - front loading mechanism - (X-SE9) X-SE7/SE7(G)/SE9 3 CONTROLS 1 Tape tray Load a cassette tape here. 2 “on/standby” key/indicator Press to turn the power on/off (standby). This key is not used when the unit is connected using the

11、system connection. 3 Dolby NR key/indicators Press to switch the Dolby Noise Reduction on/off. 4 Play (2 3) keys/operation indicators During stop and pause: the tape direction lights red. During playback and recording: the tape direction lights green. During fast forward and rewind: the tape directi

12、on flashes green. 5 Open/close (0) key Press to open the tape tray when loading or unloading tape. 6 Stop key (7) 7 Pause (8) key/indicator 8 Record () key/indicator Press to start recording. When pressed during recording, the tape stops after leaving a non-recorded section (blank) of about 4 second

13、s. 9 Fast forward and rewind (1 ) keys 0 “rev. mode” key/indicator Press to switch the tape reverse mode (two-way or one- way) of the deck. ! CRLS key/indicator Press to set the recording level automatically according to the recorded music source. on/standby rev. mode Dolby NRCRLSBC ?1 0 2 7 3 ? 8 ”

14、? stereo auto reverse cassette deckX-SE7 1 2 4 5 6 8 9 0 ! 3 7 - front loading mechanism - (X-SE7) X-SE7(K) 1P 97.11.29 4:14 AM yW 7 RadioFans.CN 收音机爱 好者资料库 X-SE7/SE7(G)/SE9 4 ADJUSTMENT AC voltmeterAC voltmeter Oscilloscope Distortion meter AG SYSTEM CONTROL REC IN PLAY OUT LR KSJ-0816 OrderItem In

15、put setting Output setting Deck setting Adjustment pointsAdjustment methodFig. Unless otherwise specified, set the respective switches as follow : TAPE : NORMAL DOLBY : OFF INPUT : REC IN OUTPUT : PLAY OUT I. Cassette mechanism section (Recording/play head adjustment) Demagnetization and cleaning Po

16、wer : OFF Demagnetization, cleaning, PLAY Recording head, erase head, capstan, pinch roller Demagnetize the REC/ PLAY head with the head eraser. Clean the REC/PLAY head, erase head, capstan and pinch roller using a cotton swab slightly damped with alcohol. Azimuth of the REC/PLAY head TCC-153 MTT-11

17、4 10KHz, -10dB LINE OUT (Lch or Rch) PLAY Adjust the output to maximum and adjust the azimuth adjustment screw for the Lissajous waveform pattern of the oscilloscope to become close to a 45 straight line. II. Printed circuit board adjustment (X28-293) (1) Tape speed (normal) TCC-110 MTT-111 3KHz (A)

18、PLAYMOTOR VR. Adjust so ; that the frequency is 3KHz at the tape center. (2)Playback level TCC-130 400 Hz (A) MANUAL ADJUSTMENT MODE PLAY ADJUSTMENT VALUE UP : DOLBY KEY DOWN : RVS PLAY KEY CHANGE OF ADJUSTMENT MODE CRLS KEY Output level : -1dBs (3)Bias current TCC-108A 12.5KHz, -21dBm (A) MANUAL TE

19、ST MODE REC and PLAY -21dBm (4)Recording level TCC-108A 400Hz, -21dB (A) MANUAL TEST MODE REC and PLAY -21dBm RVSFWD # The method of the manual adjust- ment mode. (1) Setting Shorting the TEST pin of (X28- )(A/5) TP5 w TP4 with the diode, plug the power cord to the AC wall let. (2) Refer to manual a

20、djustment mode(3-3), if require more details. (A) Measurement Equipment Connection X-SE7(K) 1P 97.11.29 4:14 AM yW 8 ACEGIBDFHJ 2 1 3 5 7 4 6 EB 1 6441 24 80 6540 25 1 110 16 13 BE 1 3 1 10 1 3 9 1 1 1 1 1 112 10 1 10 15 5 12 1810 BE B B B B BE BE E E E E 19 E E B B 151101 I BE BEBE G O REC IN PLAY

21、OUT SYSTEM CONTROL AC OUTLET EB E B EB E E B E E B B B BE BE BEBE E B EB EB EB EB E B E B EB E E E E B B B B Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view) 56 X-SE7(K) PCB/SD( 97.11.29 4:19 AM y W 2 ABDFHJCEGI 2 1 3 5 7 4 6 6.4V REC:0V 6.4V 6.

22、5V 1.7V 1.7V 6.5V 6.5V 6.5V6.5V 6.5V 6.2V 6.4V 7.0V 7.0V 6.2V 6.2V 7.0V 6.4V 6.5V 6.5V 6.5V 6.5V 6.5V 1.7V 1.7V 6.5V 6.4V REC:0V 6.4V CRO2/METAL:5.0V NORMAL:0V 25.8V 5.1V 12.6V 12.9V REC:4.8V REC:0V 7.9V 7.3V 12.9V 9.8V 3.7V 1.3V 0.7V 3.7V 0.7V 1.3V PLAY:12.9V REC:0V PLAY:0V REC:5.0V REC:4.4V PLAY:0

23、V 0.5V 0.8V 7.3V 0.6V 0.5V 0.8V 12.3V 12.3V 5.0V 11.6V 12.2V PIN 1 2 3 4 5 6 7 8 918 17 16 15 14 13 11 12 10 PINNORMAL CRO2 METALMETAL CRO2 NORMAL 1.9V 4.4V 3.2V 4.4V 2.4V 1.9V 2.6V4.1V 3.2V 3.6V 12.9V 0V12.9V 1.8V2.9V 4.38V 2.3V3.4V 1.7V2.9V 2.64V4.1V 12.9V 1.69V MODE:RECORDING IC8 VOLTAGE 7.0V 10u

24、16 C229 + C239 1u50 + 22u16 C209 + C210 22u16 + 10u16 C233 + 10u16 C232 + 22u16 C234 + C238 100u16 + 47u16 C21 + C214 1u50 + 1u50 C114 + C122 0.1u50 + C124 0.1u50 + C126 10u16 + C130 0.1u50 + C132 2.2u50 + C131 2.2u50 C125 10u16 C121 0.1u50 + 1u50 C113 + C123 0.1u50 + C129 0.1u50 + + + () )( () )( (

25、) () )( )( )( )( )( )( )( () () () () ( ( ) ) )( )( )( () )( )( )( )( () )( () () () () () () () () () () 18 17 16 15 14 13 12 10 PROTECTION CIRCUIT THARMAL DETECTING POWER SOURCE STABILIZING +15V DET. ABSO. DET. PEAK DET. ABSO. 1 2 3 DET. PEAK 4 VCA 11 DRIVER PRE 7 VCA COMPARATOR 5 6 GND 8 9 0.022

26、C225 220K R219 0.01 C221 0.022 C227 R221 33K C223 560P 33K C228 0.022 0.022 C226 C222 0.01 220K R220 C224 560P R222 C230 10P 1 2 3 4 5 6 4 1 2 3 HX L4 150P C218 220P C220 16 220P 4 C219 3 2 L3 EH C217 150P EH 4 6 L9 3 1 25 C231 0.01 0.01 C237 22K R226 10 1/4W R224 10 R223 1/4W 5600P C236 R225 22K C2

27、35 5600P 68 R233 4.7K R235 K1 150K R207 390P C205 10u16 C203 + R205 160 R203 0.022 C207 6.2K 1 2 4 3 5 160 R2046.2K R206 150K R208 390P C206 7 8 9 6 0.022 C208 10u16 C204 + C201 680P R201 150K C202 680P R202 150K Q31,32 10mH L7 220P C215 15K R211 15K R212 10mH 220P C216 L8 Q44 10K R214 10K R213 1K R

28、229 10 R230 22K R227 10 R234 R228 5.6K 1/4W 1/4W 109876543211112 R218 1K R217 1K R216 10K R215 10K 3.3K R231 1K R232 Q47,48 121189107654132 PLAY/REC PLAY Lch GND PLAY Rch REC Lch REC Rch BIAS Rch BIAS Lch BIAS ERASE EH GND 13V 1 2 3 4 5 6 GND 1 OUT1 2 Vz1 3 Vref 4 Fin 5 Rin 6 Vcc1 7 Vcc2 8 Vz2 9 OUT

29、2 10 C20 0.1 10 R45 C18 0.1 R44 1K R42 1K R43 1K 1/4W 123 45 R109 3.9K C107 6800P NC L1MPX 1.5K R107 R158 18K 56 E. VOL E. VOL 71 1 80 VREF 77 78 79 1A 3 2 5 4 REF VR3 VR2 74 75 76 VR1 GND 72 73 DAC SBIT 67 GND VR1 68 69 70 VR2 VR3 BIAS65 66 DAC SBIT 64 63 1A VREF 60 62 61 58 59 57 REC OUT 8 7 6 10

30、9 B/C NR DOLBY 12 11 VOL RECT EQ LMA + SBIT DAC + LMA DAC SBIT REC OUT B/C NR DOLBY 54 55 51 52 53 RECT VOL EQ 49 50 C103 10u16 + 1u50 C105 + R103 33K 1u50 C143 + + 1u50 C154 + C104 10u16 +C106 1u50 + C144 1u50 1.5K R108 6800P C108 321 4 R110 5 L2 NC MPX 3.9K 39K R105 39K R106 R104 33K C213 1u50 + 3

31、300P C211 3300P C212 1.5K 1.5K C118 2200P C116 2200P 22K R114 0.033 C112 220P R112 2.2K 10mH L6 R116 560 C110 C120 2200P R126 10K R130 R128 4.7K C134 1u50 + 22K R120 4.7K R118 2.2u50 C128 + 1.1K R122 R127 4.7K C133 1u50 R125 10K C119 2200P C115 2200P C117 2200P R115 560 C127R121 4.7K R117R119 22K 1.

32、1K2.2u50 + C111 C109 0.033 220P 22K R113 R111 2.2K 10mH L5 3300P R161 6.2K 0.1 12K 1.2K R163 C146 R162 C145 47K R160 120K R164 22K 1 2 3 4 5 6 7 8 9 10 15 14 13 12 11 R210 R209 1 2 3 4 5 6 7 8 9 10 1 3 4 14 13 50 46 42 41 40 39 32 29 6 3 1 2 5 4 6 8 7 10 9 2 1 3 4 5 8 7 9 11 10 13 12 14 15 REC. R MU

33、TE +B BIAS. R 13V BIAS. L CLK DATA ST RESET REC. L LEV. L 5V S. BUSY S. DATA D. GND A. GND PLAY. R 120/70 400/12.5k PLAY. L OSC ATT OSC LINE MUTE REC MUTE LEV. R 1 2 3 4 5 6 7 8 9 10 13 11 12 47K R7 4.7K R8 3.3K R10 47K R9 40 41 R6 100 R5 100 R3 100 R1 100 47K R54 R2 100 100 R41 R40 100 65 64 67 66

34、78 77 76 59 75 74 45 44 52 51 48 43 42 46 61 38 39 50 49 47 REC F HALL OUT SOL HALF GND 12V MOTOR + MOTOR COM MODE CrO2 METAL REC R OPEN CLOSE COM MOTOR MOTOR + EH Lch Rch GND EH GND +ERASE (BRN) +E (BRN) -E (BLU) +R (GRN) -L (ORG) +L (RED) Lch Rch +12V GND (BLU) -ERASE -Rch (YEL) +Rch (GRN) (RED) +

35、Lch -Lch (ORG) EARTH (WHT) -R (YEL) GND (WHT) 1 2 3 4 5 EH EH GND Rch Lch GND 1 2 3 4 5 6 7 8 9 10 13 11 12 2 1 Rch Lch 6 5 4 3 CLOSE OPEN COM MOTOR -(CCW) MOTOR +(CW) FEW REC HALL OUT SOL HALF GND 12V MOTOR +(CW) MOTOR (CCW) COM MODE CrO2 METAL REV REC DOLBY HX PRO ERASE OSC Q45 Q46 D33 Q44 Q33 Q31

36、 Q32 IC7 (1/2) (2/2) IC7 PLAY MUTE PB EQ RELAY SELECT. PLAY/REC D32 Q41 Q43 Q42 EH CONT. Q48Q47 CONT. BIAS CN12 CN11 CN5 D18D20 CN6 Q24 Q23 Q27 Q28 Q29 Q30 D22 CPM CONT. Q6 Q8 CONT. SOLENOID Q7 Q9 D8D9 CN10CN4 MOTOR DRIVE CN2 CN3CN9 Lch ERASE HEAD R/P HEAD Rch PHOTO REFLECTOR MOTOR S6 S5 S4 S3 S2 S1

37、 SOL TRAY MOTOR S8 S7 Lch Rch IC8 (X28-2932-71) (C/5) IC6 (X28- ) (B/5) R/P/E HEADHEAD PCB MECHANISM (D401574 05) CAUTION: For continued safety, replace safety critical components only with manufacturers recommended parts (refer to parts list). indicates safety critical components. For continued pro

38、tection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. The D

39、C voltage is an actual reading measured with a high impedance type voltmeter with a cassette loaded at playback mode. The measurement value may vary depending on the measuring instruments used or on the product. Bias circuit DC voltage is measured while in the record mode. X-SE7(K) PCB/SD( 97.11.29

40、4:19 AM y W 3 REC: 5.0V OTHER: 0V PLAY,REC, REC PAUSE: 5.0V OTHER: 0V AC22.0V 5.1V 5.1V 4.7V 4.8V 5.1V 11.3V25.5V 12.3V 12.9V 0.6V 5.7V 6.1V 12.3V 14.0V 13.5V 25.8V 12.9V 26.0V 5.1V 4.7V 5.1V 0V 4.8V 0V 0V 0.6V 1.3V 1.3V 3.2V 3.5V 1.3V 1.3V 1.3V 1.3V 1.3V 1.3V NORMAL:2.0V METAL/CRO2:3.3V STOP:4.4V P

41、LAY/REC:0V REC: 0V OTHER: 4.3V 1.2V 6.3V 12.9V DOLBY OFF:0V DOLBY ON:5.0V DOLBY B:0V DOLBY C:5.0V PLAY:0V REC:5.0V OTHER:4.3V REC:0V + + + + () () () () () () () () C158 22u35 + () () () () () )( )( )( )( )( )( )( )( )( () () () () () () () () () () () () () () () )( () ( ( ) ) )( () () () () () ()

42、() 1u50 C23 + 1u50 C24 + C14 1u50 + 10u16 C8 + C6 10u16 + C7 47u16 + C9 100u10 + 100u16 C5 + 1000u35 C11 + 1000u35 C1 + 1u50 C22 + )( )( )( )( () )( )( () )( )( () )( )( )( )( )( )( )( )( )( )( () )( () )( )( () )( () )( KS0 KS1 KS2 KS3 IREF 13 14 EQ REC EQ-CONTROLER NN NC 17 16 15 NM HN HC 20 19 18

43、 21HM 22 23 24GH GL GP DAC SBIT 25 26 27FM FQ F/Q 28 29 30 BIAS VCC EQ REC 47 48 ADJ. BIAS DAC SBIT 31 32 VCC BIAS 33 34 35 36 GND N M CONT RESET MPX SW C/B ON/OFF 44 45 46 43 42 37 38 C 39 40 41 LOGIC ILL R159 24K C136 2.2u50 R124 1K R145 120K R139 47K GP R140R146 51K36K GL R141R147 56K30K GH R142R

44、148 68K56K F/Q R143R149 43K56K FQ R144R150 220K220K FM NC NN R123 1K 47K C155 1u50 C156 1u50 C157 1u50 2.2u50 C135 + C141 18P C138 1u50 + R132 100K C137 1u50 + R131 100K R151 100K R152 62K R157 3.9K C139 18P R154 5.6K R153 5.6K C140 56P R155 5.6K C142 100P R156 1K 29 32 39 40 41 42 46 50 220P C102 2

45、20P C101 100 R102 100 R101 220P220P C150C149 1.2K R133 4.7K R137 4.7K R138 1.2K R134 R136 56K R135 56K 0.01 C148 100K R168 100K R167 220P C152 220P C151 R169 56K R166 10K R165 10K 13 14 1 4 3 REC MUTE LINE MUTE CLOSE SOL 80 25 64 S. BUSY OPEN 1 79 CASS. SW Fin 26 78 R. INH A Rin 27 77 READ 28 76 AVS

46、S CE 29 75 TEX NC 30 74 TX NC 31 73 VSS VDD 32 72 XTAL A 33 71 EXTAL R. MUTE 34 70 RST L. MUTE 35 69 NC OSC ATT 36 68 NC 400/12.5k 37 67 NC 120/70 38 66 NC CR F/S 39 65 NC S. DATA 40 2 DATA TEST 2 63 3 CLK A. ADJ 62 4 PH SW M. ADJ 61 5 NC TEST 1 60 6 OSC OUT KS0 59 7 NC KS1 58 8 GND KS3 57 9 GND KS2

47、 56 10 GND NC 55 11 GND NC 54 12 NC NC 53 13 STB NC 52 14 DATA KR2 51 15 PLAY/REC KR0 50 16 BIAS KR1 49 17 CLK SYSTEM IC NC 48 18 ERASE LED2 47 19 PLAY SW LED0 46 20 LEVEL. R LED1 45 21 LEVEL. L NC 44 22 R. INH B NC 43 23 I/INC 42 24 CPMNC 41 E2 PROM SYSTEM IC 65 66 67 74 75 76 77 78 R39 10K 41 R55

48、47K 42 43 44 45 46 47 48 49 50 51 52 R56 47K R53 47K R51 47K 40 38 39 C17 0.01 10MHz X1 59 R59 10K R61 47K R60 47K R62 47K 1 2 3 4 5 6 7 8 9 10 20 19 18 15 14 16 18 20 19 16 15 14 R63 47K R64 47K R65 47K R66 47K 3 4 5 6 7 Q1316 15K R52 1u50 C13 + R38 100K 10K R37 1K R46 0.01 C15 0.01 C16 0.022 C27 1K R27 1.5K R26 680 2W R24 4.7 R23 1.8