Kenwood-XW320-tape-sm 电路图 维修手册.pdf

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1、STEREO DOUBLE CASSETTE DECK X-W320 SERVICE MANUAL 1997-8/B51-5348-00 (K/K) 3486 STEREO DOUBLE CASSETTE DECK X-W320 00 8 11 DUBBING NORM. HIGHO.T.E. REC LEVEL MINMAX POWER DOLBY NRCCRS RESET REV. MODE AB 237 2 37 - ON OFF REC IN PLAY OUT LINE R L SYSTEM CONTROL AC 110 - 120V AC 220 - 240V Cassette li

2、d assy (A53-2021-08) Front glass (B03-3818-08) Cassette lid assy (A53-2022-08) AC power cord * (E30-) Phono jack (E11-0369-08) Slide switch * (S90-0125-08) Miniature phone jack (E11-0188-05) Power cord bushing (J42-0336-08) Panel (A60-1287-08) * Refer to parts list page on 16. X-W320(K) COVER( 97.11

3、.29 4:36 AM yW 2 RadioFans.CN 收音机爱 好者资料库 X-W320 2 CONTENTS / ACCESSORIES Accessories CONTENTS / ACCESSORIES .2 CIRCUIT DESCRIPTION.3 ADJUSTMENT.6 PC BOARD .7 SCHEMATIC DIAGRAM .9 EXPLODED VIEW .14 PATS LIST .16 SPECIFICATIONS .Back cover Contents Audio cord .(2) (E30-0505-05) System control cord.(1)

4、 (E30-2733-05) * AC plug adapter .(1) (E03-0115-05) Check that the following accessories are present. * Use to adapt the plug on the power cord to the shape of the wall outlet (Accessory only for regions where use is necessary.) X-W320(K) COVER( 97.11.29 4:37 AM yW 3 RadioFans.CN 收音机爱 好者资料库 X-W320 3

5、 CIRCUIT DESCRIPTION 1. Microprocessor 1-1 Microprocessor periphery block diagram Pin No.I/OFUNCTIONKR0KR1KR2KR3 63FIP23SBCWCCW 64FIP22SCCOUNTER BF.F AREV ASTOP A 65FIP21SDREW AREV MODEDOLBYFWD A 66FIP20SECOUNTER ADUBB HIGHDUBB NORCCRS 67FIP19SFO.T.EPAUSERECORDSTOP B 68FIP18SGREW BF.F BREV BFWD B KE

6、Y MATRIX REC MUTE LINE MUTE PLAY B/A B BIAS B R/P DATA CLOCK STROBE DOLBY C/B DOLBY ON/OFF LEVEL L LEVEL R CLK STROBE DATA RESET LINE MUTE REC MUTE SOLB CPMB CSPB B PACK R REC F REC B CrO2 PHB B PLAY SOLA CPMA CSPA PHA A CrO2 A PLAY A PACK BIAS NOR BIAS CRO2 PB AMP TAPE A TAPE B DOLBY NR REC EQ IC 1

7、02 HX-PRO FL IC 201 SYSTEM IC u-COM IC 101 DRIVER BDRIVER A R/P MECHA BPB MECHA A KEY MATRIX CMAL2Z078ACMAL2Z077A X-W320(K) COVER( 97.11.29 4:37 AM yW 6 RadioFans.CN 收音机爱 好者资料库 X-W320 4 CIRCUIT DESCRIPTION 1-2 Pin description Pin No.Pin NameI/ODescriptionAction 17G7G1OFL tube grid signal output (G7G

8、1) 8VDDSUPPLY (+5V) 9CLKOSystem IC clock output 10STBOSystem IC strobe signal inputH 11DATAOSystem IC serial data outputH/L 12HXPROOHX-PRO bias switching L : ONL 13PLAY B/AOB/A Head switching H : BH/L 14DOLBY ONODOLBY ON/OFFH 15DOLBY C/BODOLBY C/BH 16MPXOMPX FILTER OFF/ONL 17RSTIReset signal inputL

9、18CPMAOA capstan motor ONH 19CPMBOB capstan motor ONH 20AVssGND 21PHAIA mecha rotation detectionL 22PHBIB mecha rotation detectionL 23A PACKIA tape detection inputH 24B PACKIB tape detection inputH 25A CrO2IA mecha CrO2 tape detectionH 26B CrO2IB mecha CrO2 tape detectionH 27LEVEL LICCRS, DPSS Lch s

10、ignal input 28LEVEL RICCRS, DPSS Rch signal input 29AVDDANALOG SUPPLY (+5V) 30AVREFFOR ADC 31, 32XT1, XT2OPEN 33VssGND 34X1IClock oscillator 35X2IClock oscillator 36CSPBOB-Capstan motor speed High/NorH/L 37B BIASOB Bias ON/OFF H : ONH 38B Mecha R/POB REC/PLAY switchingH : RECH 39F RECIA-Fool Proof F

11、WDL : REC OKH 40R RECIA-Fool Proof BWDL : REC OKH 41CSP AOA-capstan motor speed High/NorH/L 42SOLBOB solenoid ONH 43SOLAOA solenoid ONH 44EQ SPO 45S DATAI/OSerial data input outputH/L 46S BUSYI/OSerial busy input outputH/L 47CEISystem StopL 48ICConnect to VSS 49LINE MUTEOLine mute controlH 50REC MUT

12、EORec mute controlH 51BIAS NORMALOHX-PRO Bias switchingH : NORH 52VDDSupply (+5V) 53B PLAY SWIB-Mecha Mode SWL : PLAYL 54A PLAY SWIA-Mecha Mode SWL : PLAYL 55EQ 70/120OEQ switchingH : 70usH 56OTEOOTE LED IndicatorL 5760KR30IKey return signal input(KR30) 6170HSPOEQ SP HIGH switch should be set as fol

13、lows : TAPE : NORMAL, DOLBY : OFF, INPUT : LINE0dBs=0.775V I.Cassette mechanism section (REC/PB head adjustment) X-W320(K) COVER( 97.11.29 4:37 AM yW 11 ACEGIBDFHJ 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view) 78 X-W320(K) PCB/S

14、D( 97.11.29 4:31 AM y W 2 ABDFHJCEGI 2 1 3 5 7 4 6 1.7V 4.7V NOR DUBB:0V HI DUBB:4.2V 0V HI DUBB:0V NOR DUBB:3.0V 13.3V 0V 1.3V 0.8V 4.7V 0.8V 6.6V6.6V 6.6V 13.3V 4.3V REC:0V PLAY:2.5V REC:0V PLAY:4.3V REC:4.3V PLAY:0V REC:2.5V PLAY:0V PLAY:4.3V REC:0V REC:4.2V PLAY:0V 13.3V PLAY/STOP: 0V REC: REC:4

15、.7VREC:4.2V REC:0V 9.2V HI DUBB: 5.7V NOR DUBB: HI DUBB:10.2V NOR DUBB:9.2V 13.3V 11.0V 11.8V REC:12.2VREC:11.6V 9.2V DUBB: 5.7V HI DUBB: NOR STOP: PLAY: 11.8V 0.8V 3.7V HI DUBB: 11.8V DUBB: NOR PLAY:11.1V STOP:11.8V STOP:0.4V PLAY:2.7V HI DUBB:10.2V NOR DUBB:9.2V 11.9V 11.8V A PLAY:0V B PLAY:4.7V A

16、 PLAY:13.3V B PLAY:0V PLAY:0V B REC:0.6V 13.3V 4.7V 1.3V 0.8V 4.7V 13.3V CROZ:0V NOR:2.7V CROZ:2.8V NOR:0V PLAY:0.7V REC:0V NOR:1.9V CROZ:2.8V 1.2V 4.3V 1.7V 1.2V 2.4V 13.3V 4.3V 1.1V 4.3V 1.7V 1.1V 3.0V 13.3V 13.3V 13.3V 13.3V B PLAY:0V REC:4.7V 6.6V 1.8V 1.8V 6.6V 6.6V 0V 0V 6.6V 0V 1.3V 1.3V 1.3V

17、 6.6V 1.8V 1.8V 6.6V 6.6V 0V 0V 6.6V 1.2V 6.6V 1.3V 1.3V 1.3V 1.3V 1.3V 1.3V 0.8V 11.1V PLAY: 11.8V STOP: PLAY/REC: 11.8V STOP:0.8V 2.7V 0.4V PLAY: STOP: 11.8V 13.3V -19.8V 0.7V 6.1V 4.3V 3.0V 4.9V 5.5V PLAY:0.7V PLAY:0.7V RECORD/PLAYBACK UNIT TAPE B (D40-1569-08) TAPE A (D40-1570-08) IC102 IC401 IC

18、501 IC301 IC2 M IC402 49 9.4V R525 0.039 C108 C107 0.039 4.8V 5.6K5.6K 9.4V C411C412 R460R459 -24.4V -24V +B +B +12V +12V +13V +9V 2 13 VR501 43 33 2 12 13 28 +5V +5V +5V +5V +5V +13V +13V +20V +4V+4V +4V +4V +4V +5V +12V +5.5V C211 0.1 C208 0.47u50 R250 R244 10K C212 0.1 VR201 R139 2.7K R532 4.7K R

19、526 1.5K VR401 R318 470 R314 390 - + + - INOUT + C515 10u35 R517 10 C521 0.018 C513 10P R316 3.3K R322 3.3K C310 5600P C309 5600P R407 47K R408 1.5K R312 18K R311 18K R310 100 C308 2200P C307 2200P R321 3.3K R315 3.3K 37 R301 27K R302 27K R319 10K R320 10K 38 R999 0 R317 470 R313 390 27 +13V +12V +1

20、3V +13V +12V +12V +13V +13V +13V+13V +9V +13V +13V +12V +13V +12V +13V +B +B R528 1.5K R527 47K 19 36 4.7K R524 47K R523 100K R522 680 VR502 1K R529 680 + C520 10u35 42 C525 220P L502 10mH R530 680 R501 15K R502 15K C526 220P L501 10mH C514 C517 0.01 R514 2.2 2.2 R513 R515 56K R531 12K R519 18K 5600

21、P C519 3900P R516 56K C518 3900P R403 100KR404 47K R402 680 R401 2.7K VR401 2.2K VR402 1K R465 4.7K 18 41 R406 1.5KR405 47K R141 5.6K C105 10u35 + R138 5.6K R137 5.6K R135 2.2K R136 2.7K + C116 2.2u50 22K VR102 VR101 22K + C115 2.2u50 R133 33K C113 0.01 C109 0.022 C111 560P R134 33K R131 270K C103 1

22、50P C101 470P C104 150P C102 470P C110 0.022 C114 0.01 C112 560P R132 270K R462 22K R461 22K R308 10K R306 100K 7 4 3 8 1 5 2 6 R463 10K R453 68 VR403 220 R455 6.8K 150K 0.022 VR404 22068 R454 10u50 C408 + + C405 47u16 R456 6.8K 150K 0.022 + C413 100u16 R409 220K C401 270P R450 220K C402 270P - + +

23、- R458 22K 220P + C407 10u50 + C406 47u16 R457 1K R452 330K R451 330K C410 390P C409 390P C404 220P C403 C504 10u50 10u50 47u16 R510 6.8K CC512 0.022 R512 150K C503 + C506 470P R508 150K + + - 4 390P 220 VR504 C510 2 + C507 470P R507 150K + C508 R506 68 8 6 R503 1K C505R505 6847u16 7 + - 5 390P 220

24、VR503 C509 3 1 100 R309 R219 180K R213 150K R207 220K R220 100K R214 68K R208 100K R215 36K R221 68K R209 75K R222 22K R216 27K R210 56K R217 36K R228 56K R211 56K R224 150K R218 180K R206 120K R212 180K 50 R303 27K R304 27K 8 4 7 1 2 3 5 6 0.47u50 R307 10K + C302 1u50 + C301 1u50 R305 100K + C305 1

25、00u10 + C304 0.47u50 + C303 R521 2.7K VR501 2.2K 54 21 25 23 53 22 26 24 39 40 R151 10K 51 R140 8.2K + C218 0.1u50 + C214 10u35 R249 3.3K 3.3K + C220 2200P + C216 0.1u50 + C204 0.47u50 C210 2.2u50 R248R246 100K VR202 10K R252 4.7K R242 10K 37 38 34 35 + C202 2.2u50 R236 3.9K R280 10K R202 68K R205 1

26、00K R201 47K 34 35 37 38 28 29 30 31 32 R203 47K R204 47K 32 31 30 29 28 27 C201 2.2u50 + R235 3.9K R241 22K + C203 0.47u50 27 R243 10K R245 100K R247 + C209 2.2u50 R251 4.7K + + C207 0.47u50 VR201 10K R28 220 + C42 100u10 R27 220 + C35 100u16 C34 0.1 R998 0 + C239 10u35 C217 0.1u50 + C213 10u35 + C

27、215 0.1u50 C219 2200P R3 1K + C6 10u35 C8 1000u6.3 + C7 100u10 + R5 56K + C9 22u50 R4 100K FH1 630mA F1 FH2 1 2 3 GND Rch Lch 2 1MTRA MTRB 3GND 5A.PLAY MTR+B4 7 6 PHA +5V 8SOLA 10APACK ACR029 GND Lch1 2 Rch3 2 1MTRA MTRB Lch Rch GND3 4 +5V6 5 MTR+B A.PLAY SOLA8 9 10 ACR02 APACK 7PHA 1 3 2 5 4 1 3 2

28、GND GND LcH 4 5 6 GND E.H Rch 1MTRA 3 5 GND B.PLAY MTR.+B4 MTRB2 6 7 8 +5V PHB SOLB BPACK NC F.REC 10 11 12 9BCR02 R.REC13 2 1 3 MTRB MTRA GND 4 5 6 8 7 10 9 MTR.+B B.PLAY +5V PHB SOLB BPACK BCR02 11 13 12 F.REC R.REC NC GND2 Rch GND3 4 Lch1 GND5 E.H6 Lch Rch E.H SCREW EARTH L-CH R-CH LMA LMA REC EQ

29、 EQ REC GND 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 DET. ABSO. DET. PEAK VCA COMPARATOR POWER SOURCE STABILIZING PROTECTION CIRCUIT THARMAL DETECTING DET. ABSO. DET. PEAK VCA DRIVER PRE 33 LM-IN GND2 NN NC NM HN HC HM LM-IN IREF FM FQ F/Q GH GL GP 48 47 46 45 44 43 42 41 40 39 38 37 36 35 + C50

30、1 100u16 C511 0.022 R511 150K 6.8K R509 34 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 VSS VCC 1NM Y1 Y3 Y Y2 Y0 B A X3 X0 X X1 X2 VDD 8 7 6 5 4 3 2 1 9 11 12 13 14 15 16 +5V +5V +5V +5V )( )( () () )( )( )( ) () ( )( () )( )( () )( () )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( () () () )( )(

31、)( )( )( )( )( )( )( )( )( () () M PB LEVEL (Lch) Rch Lch PB LEVEL (Rch) B-PB EQ. EQ.SP PB LEVEL (Rch) (Lch) PB LEVEL A-PB EQ. Lch Rch SELECT A/B BUFFER +5.5V AVR LEVEL REC (Lch) (Rch) REC LEVEL CSP SW CPM SW SOL SW B BIAS NOR SPEED BIAS OSC SOL SW CPM SW CSP SW NOR SPEED HI SPEED SW B REC/PLAY HX-P

32、RO BIAS (Rch) (Lch) BIAS TP501 HI SPEED Q306 Q401 Q406 Q405 Q404 Q301 Q307Q302 Q305Q303 Q304 Q410 Q411 Q308 Q507 Q505 Q506 Q512 Q511 Q510Q509 Q508 D505 Q504 D504 L503 Q501 Q502 Q503 D503 D502 D401 Q403 Q402 Q103 L101 L102 D402 Q409 Q408 Q407 D501 RLY501 Q101 Q202 Q201 ZD7 D25D26 ZD2 D6D5 Q1 ZD1 D7 D

33、9 CNS402 CNS401 CNS501 CNS502 JK301 Rch Lch Lch Rch REC IN PLAY OUT DOLBY B/C NRRECT DOLBY B/C NRRECT REC-EQ CONTROLER X-W320(K) PCB/SD( 97.11.29 4:32 AM y W 3 TKMOQSLNPR -31.5V 4.8V -19.2V 6.6V 6.6V 6.6V 6.6V 6.6V 6.6V ON:3.9V OFF:0V B:0V C:3.9V 0V 13.3V 7.2V 6.6V 6.6V 6.3V 6.6V 6.6V 0.7V 6.6V 6.6V

34、 6.6V 6.6V 1.4V -22.5V -25.0V 19.4V 20.0V11.9V 4.8V 4.5V 0.3V 4.8V 0.2V 1.0V 4.8V A.PLAY:0V B.PLAY:0V 4.8V 4.5V -12.6V -12.4V -12.4V 4.6V -19.2V -24.4V -22.2V -22.2V -24.2V -24.4V -24.4V -18.5V -24.4V -24.4V -18.3V -24.1V -12.3V -9.4V -12.4V -12.4V -22.2V -22.2V -22.2V -22.2V -22.2V -22.2V -22.2V 4.

35、8V 4.8V 4.8V 4.8V 4.8V 4.7V 4.7V 0V 0V 2.2V 2.3V 70uS/HI:4.7V 120us:0V 70uS:4.7V NOR:0V HI:4.7V 4.5V 4.5V 0V 7.2V 6.6V 6.6V DISPLAY UNIT IC1 IC101 IC201 L R DOLBY NR 3 2 1 3 2 1 AC110-120V 220-240V 50/60Hz T.F AC220-240V SW702 AC110-120V 0.047 C701 K702 K701 AC CORD K701 0.047 AC120V 60Hz T.F SW701

36、K702 AC CORD 1 2 C701 SW701 1 2 0.5 1/4W T.F C701 0.047 SW701 1 AC CORD 50Hz K701 22 1 C : AC220V E/T : AC230V X : AC240V K702 R261 3.3K P1 P1 3.0V AC R17 10K 0.3V 6.6V PAUSE B SD SFSTOP B KR3 NO KR2KROKR1 NC 11 12 13 15 16 17 14 18 19 10 9 8 7 6 5 4 3 2 1 G8 G7 G6 G5 G4 G3 G2 G1 SC SD SE SF SG SH S

37、I SJ SK SL SM SN SO G9 SA SB GND F1 +5V R3 R2 R1 R0 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO G9 G8 G7 G6 G5 G4 G3 G2 G1 F2 CCRS REW A DUBB HIGH COUN ASE DUBB NOR REVERSE MODE REV BFWD EFF BREW BSG STOP A DOLBY REV A CCWNO COUN BFF A CWSB SC FWD A REC BOTE -24V -24V-32V-23V +5V +5V +5V R113 1K R1

38、23 1K R125 1K R165 56K -24V -24V -24V -24V +5V Q206,209 Q205,210 40 39 2 60 2 13 +5V +5V 2 14 15 16 +12V+20V +5V +5V +5V +5V +5V +5V +5V +19V+19V R283 2.2K R103 1K R105 1K R109 1K R107 1K R111 1K + C40 10u35 C228 0.033 P9 P7 P15P4 P8 GND OUT IN FH3FH4 F2 1A -B +B SIGNAL LINE GND LINE RECORDING LINE

39、+ C44 10u16 36 +13V +13V +13V +13V+13V +13V 32 20 21 22 24 25 26 23 27 29 28 31 30 32 R258 560 + C250 10u35 2200P C224 2200P C222 R256 22K R254 1.5K C242 330P 6.8mH L202 4 R284 2.2K 4.7K R282 R260 100K C230 4700P + C226 0.1u50 12 1 3 2 C252 3900P 6 + C225 0.1u50 C241 330P 6.8mH L201 R255 22K R253 1.

40、5K R270 5.6K R268 5.6K R266 5.6K 11 9 10 C240 18P C238 18P C236 56P 820 R262 18K + C232 0.47u50 + C234 1u50 2K R277 820 R274 1.8K 2K R276 R278 C229 4700P C227 0.033 1.8K R273 R275 4.7K R281 + C237 330u16 R259 100K + C41 4.7u50 R26 22K R25 100 + C39 10u35 R24 10K + C38 100u50 + C37 47u35 R23 10K + C3

41、3 100u25 + C231 1u50 R267 22K R269 22K 3 2 1 4 6 + C235 1u50 + C233 0.47u50 R257 560 C223 2200P C221 2200P C251 3900P 21 + C5 100u16 0.1 C4 + C2 4700u35 C3 0.1 + C31 2200u35 C32 0.1 C30 0.022 R32 33 R120 10K R122 10K 51 R118 100K R116 100K R117 1K R115 1K 28 27 25 26 37 38 XL101 C1 0.022 R31 1 1/4W

42、+ C36 47u35 7 6 68 70 69 72 73 74 75 76 79 77 67 66 65 64 63 62 60 59 58 57 56 57 56 58 62 59 64 63 13 12 C312 220P C313 0.022 C311 220P R19 82 C26 0.01 R328 100K R327 100K R323 100K R324 330 R320 100K R325 330 R16 1K R30 10K R18 10K R15 100 + C29 100u6.3 C43 0.047 R14 2.7K R12 4.7K + C45 22u35 + C2

43、4 1u50 R13 4.7K R112 10K R114 10K 18 19 1 80 3 4 5 R108 68K R101 10K R102 10K R104 10K R106 10K R110 68K 21 22 24 23 14 16 15 9 10 11 1 2 4 3 6 5 1 2 4 3 5 6 R121 1K R119 1K 41 42 43 R166 10K R162 10K R163 10K R161 10K 49 50 R126 10K R124 10K 54 4 5 6 7 66 67 68 69 70 72 73 74 75 76 77 65 79 80 GND1

44、 +5V F1 3 2 OTE4 R26 5R3 R0 R1 8 7 SB SA 10 9 SC11 SE13 12SD SG SF 15 14 SH16 SJ18 SL SK19 20 SM21 SO23 SN22 G8 G924 25 G726 G528 G3 G429 30 G627 G231 F233 G132 17SI VR- 1A 1A G8 G9 IC SO SN SM SL SK SJ VLOAD SI SH SG SF SE SD ACRO2 BCRO2 LEV.L LEV.R AVDD AVREF XT1 XT2 VSS X1 X2 CSPB B BIAS B-R/P F

45、REC R REC 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 G7 G6 G5 G4 G3 G2 G1 VDD CLOCK STROBE DATA HXPRO PLAY B/A D.ON/OFF D.C/B MPX RESET CPMA CPMB AVSS PHA PHB A PACK B PACK SC SB SA 70 HSP R0 R1 R2 R3 OTE EQ 70/120 A. PLAY B. PLAY VDD BIAS NOR R.

46、MUTE L. MUTE IC CE S BUSY S DATA EQ SP SOLA SOLB CSPA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 DATA CLK STB GND1 IN CNT RP1 BIAS PB1 D-GND 1A-OUT NR-IN VREF NR ON/OFF NPXNR C/B MPX OFF/ON VCC VR-IN CNT RP1

47、REI PB1 1A-OUT NR-IN VREF 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 53 R130 100K R128 100K R129 100K R127 100K 1 2 3 () () () () () () () () () () () () () () () () () () () () () )( () () () () )( )( )( )( )( -B LINE +B LINE () )( () )( () )( () () () ()

48、 () () )( )( () () () () () () () () () () () )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( )( ) ) ) ( ( ( ) ) ) ( ( ( )( )( )( () )( () )( () () ( )( )( )( () () () () () () () () () () () () () )( ) )( )( )( )( 601-610,612-627 (K,P) TYPE(I,Y,M) TYPE(E,X,T,C) TYPE S1 S1 S604 S602 D601 S601 D605 S605 D604 D602 D609 S609 COUNTER A DUBB HIGH DUBB NOR REV MODE CCRS MODE CNP601 DOLBY EQ.SP -25V AVR +13V