Kenwood-DPSG7-cd-sm 维修电路原理图.pdf
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1、COMPACT DISC PLAYERDP-SG7/SG7GSERVICE MANUAL 1999-7/B51-5542-00 (K/K) 229970%60repeat7?41?timespace compact disc playerD.R.I.V.E.with 24bit D/A converteron/standby24bit Fine D.R.I.V.E.603616617651606604650OPTICALSYSTEMCONTROLDIGITAL OUTPLAY OUTRLAC power cord *(E30-)Oscillating module(W02-1114-05)Ph
2、ono jack(E63-0122-05)Metallic cabinet(A01-3313-01)Power cord bushing(J42-0083-05)Rectangular receptacle(E08-0312-05)Illustration is DP-SG7.* Refer to parts list on page 15.In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the product relating to laserproduc
3、t safety.KENWOOD-Crop. certifies this equipment conforms toDHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Sub-chapter J.DANGER : Laser radiation when open and interlockdefeated.AVOID DIRECT EXPOSURE TO BEAMRefer to DP-SE7 service manual (B51-5371-00),if require the circuit description.Indicator(B1
4、2-0318-04)Panel (A60-1671-03)Panel(A29-1058-03)Knob (POWER)(K29-6741-04)Front glass(B10-2372-03)Knob(K29-7571-03)SUB panel (A22-1778-31)RadioFans.CN 收音机爱 好者资料库DP-SG7/SG7G2CONTENTS / CAUTIONSCONTENTS / CAUTIONS. 2DISASSEMBLY FOR REPAIR.3ADJUSTMENT.4PC BOARD . 5SCHEMATIC DIAGRAM . 7EXPLODED VIEW .13PA
5、RTS LIST.15SPECIFICATIONS .Back coverContentsOperation to resetThe microcomputer may fall into malfunction (impos-sibility to operate, erroneous display, etc.) when thepower cord is unplugged while power is ON or dueto an external factor. In this case, execute the follow-ing procedure to reset the m
6、icrocomputer and returnit to normal condition.DP-SG7Pull the power plug from the receptacle, and thenplug it in again.?Please note that resetting the microcomputer clearsthe contents stored in it returns it to condition when itleft the factory.CautionsRadioFans.CN 收音机爱 好者资料库DP-SG7/SG7G3DISASSEMBLY F
7、OR REPAIRHow to open tray if not comes out.1. Insert screwdriver to hole on bottom plate and turn screwclockwisely about 100 (1).2. Pull tray out by hand if tray comes out (2).DP-SG7/SG7G4ADJUSTMENTFIG.VCCN3L.P.F.+L.P.F.VTVMVTVM12345671.2 kHz50 mVrmsRFFE1FE2VCTE2TE1S.S+_(a)No.ITEMINPUTSETTINGSOUTPUT
8、SETTINGSALIGNMENTPOINTSALIGNFORPLAYERSETTINGS1LASER POWERApply the sensor sectionof optical power meteron the pickup lens.On the power from0.08 to 0.15 mW,when the diffractiongrating is correctlyaligned with the RFlevel of 0.6 Vp-p ormore.Press thePLAY/PAUSE key,then confirm that theLED is 03.ALIGNM
9、ENT POINTSPickup3FOCUS ERRORBIASTest discType 4Connect an oscilloscopeas follows.CH1 : RF (CN3 pin 1)CH2 : TE (CN3 pin 6)FE BIASVR2Optimum eye patternPress thePLAY/PAUSEkey,then confirm that theLED is 05.Note:Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-08)LPF: Around 47 k+ 390 pF or so.S
10、tep 14 are in Test Mode.0.080.15 mWOptical power meter2TRACKING ERRORBALANCETest discType 4Connect an oscilloscopeas follows.CH1 : RF (CN3 pin 1)CH2 : TE (CN3 pin 6)TE BALANCEVR1Symmetry betweenupper and lower pat-ternsPress thePLAY/PAUSE key,then confirm that theLED is 03.(e)4TRACKING GAINTest disc
11、Type 4Apply signal of1.2 kHz,50mVrms toCN3 pin 5-6.Connect a LPF to CN3pin 5-6 to which youconnect an oscilloscopeor AC voltmeters.TRACKINGGAINVR3Two VTVMs shouldread the same value.Press thePLAY/PAUSE key,then confirm that theLED is 05.While pressing the REPEAT key, turn the AC ON. Refer to test mo
12、de (MODE 0 0) (e) Tracking gain(a) Laser powerT-GAINVR3VR1VR2CN1TE-BFE-BACEGIBDFHJ2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)56CD PLAYER UNIT(X32-3600-00)ELECTRIC UNIT(X25-6100-01)DISPLAY UNIT(X14-4760-21)ABDFHJCEGI2135746VCC0.047C274
13、8TRK+TEIVCC3C6 2200P29FOCUSING COILTRACKING COILR13 68K3.9K47uH47uHOPEN SW345+LMGND21CLOSE SW-LM16151413VCCVCDEVCCVCCQ147u4C210R14+R420K18PC33.3KR15GND8TRK(-)21FCS(-)TRK(+)43FCS(+)SHORTLAND65PDVR7LD101211BAC10uHL113C910FAB1112+5V+2.5VD1514EVCC16VC98GNDF6574-VPDLDFCS+PD0.0229.1K33KR11 68K1MR8VR2R54.7
14、KC1220KR10 68KR12 68KC5 0.01R16 24KR17R9343536C43P3233303162K47K75K100K20KR3R2R7R6R1VR139FE.BPD1PD2EF3837RFMLDPDRFIRF041VEEEI40LRFITEO4342VDDR52 470R51 470470VCC1K1000PR44C3522VDDC40C7 0.01C827282526XRSTC.OUTSENSCC2CBCPFOKCC155542324CLKXLTDATA205721225919C280.1+22u6.3AVDD2734MNTOXTAIC361000P33RFCKC2
15、POXROFMNT3MNT13031322829XTAOXTSLFSTTC4M36100KR4535100373818BCKGTOPXUGFXPCKVDDGFS242526212223LRCKPCMD20WDCKASYEVDD19ASYOASYI1716BIASRF151443DOUTEMPHWFCKVSSSCORR55403940434142SBSOEXCKSUBQSQCKMUTE464445474647PCO12CLTV13AVSSVSS1110FILIFILO98TESTLOCK7653300PC41VDD0.47100KR50R491M1500PC390.013.3KC3810KR48
16、R473.3KR46+7V21FCS-TRK-TE2576TE1S.S432FE2VCFE1C13 0.47330KR191K100R18330KR20R22 47KC12 47P47KVR30.01C9R214700P+47u4C10C1147TZCATSC4544TDFCT46FDFCTFEIFEOVC48321SRCHEFMFEOFLBFGD654873.9K100R256.8KR24R23R26 1.5MC17 10u41C151C1422KR270.1C16R28 680K+1RFMOTORSLEDMOTORSPINDLEC20220P1MR291000PC19R32 1.5MR31
17、120KR30120KC210.0472827262523242122+7V20181917TRK-TRK+TRK(10K)TRK(NC)FCS(10K)FCS-GNDFCS+1234+5(IN)REGMUTEDM(NC)GNDDM(IN)DM+DM-FCS(NC)VCVCCSLD+SLD(NC)VCCSLD(10K)SLD-+7V658791110120.1C3222u6.3C33SL+SL-SLOISETR39 240K1718141516TAOTAMFSETTG2TGU1110912C25 0.01R36 22KR35 100K13100KVDDC26R380.01100PC2382KR
18、34C22 0.01R33 510KC18 0.033R37 18KC24 10u4+VCC6.8R564.7KD+5V57SENSXRSTDATA0.1494950C345151CLOKXLATDATOCNINSEIN535256555452535554SPODCLKOVDDXLTOSPOCSPOBSPOAMONMDSMDP43FOKXLON21VDD605958636261595764C44 0.01VDDC430.1R544.7KC4222u6.3+R57120D+5VC31R43R40R425.6K0.033R414.7K180K+7V1516C37VDD22340212054BCKE
19、MPHMCKLRCKPCMD5110+R586.8464776525398D+5V49431112DATASUBQSQCKLATCLKSENSESCOR1513141617D+5V1819+7V20RSTMONC4MDOUTDGNDD+5VMGND+7VC3010u10GNDOUT+IN-IN+7V13140.1C29+7V+7V0.033R53VDD20(BOTTOM VIEW)MOTORLOADINGLDCBFPDADELMOPEN/CLOSE SWLAZER DIODEON/OFFAPCQ2OFF-SETQ3FOCUSD1FE-BIASQ1TE-BALANCERF/SERVOCONTRO
20、LFOCUSOFF-SETD3D2Q4(BOTTOM VIEW)DSPFEEDDISCMOTORMOTORDMFMCN1ADJUSTMENTT-GAINS1CN3D5(BOTTOM VIEW)4CH BTLDRIVERD4CN2: DTA124EUA or UN5112: 2SA1576A(R,S) or 2SB1218A(Q,R): 2SC4081(R,S): CXD2507AQ 1: CXA1782BQ 1: DA204U: MA111D1-4D5Q2Q3,4: BA6398FPIC3Q1IC1IC2IC2PICKUP (KSS-213C)(D40-1571-05)MECHA. ASSY(
21、KSL-213CGN)IC1(X32-3600-00)CD PLAYER UNITIC33.3V3.4V2.4V7.1V2.4V3.5V3.2V2.5V7.1V2.5V3.5V3.6V2.3V3.1V3.6V2.4V2.4V2.4V2.5V2.4V2.6V2.4V2.4V0.8V2.4V2.4V2.4V2.4V2.4V2.4V2.4V2.2V2.4V2.4V0V0.6V2.4V2.4V0.2V3.6V2.4V3.2V2.4V0.2V1.8V4.2V0.9V1.0V2.4V2.4V2.4V2.5V1.1V4.5V4.5V4.4V0V0V2.2V4.7V2.4V3.6V2.1V4.3V4.2V4.
22、7V4.5V0V0V4.4V4.5VON:0VOFF:4.5V4.5V4.6V4.5V4.7V7.1V4.2V2.4V2.4V2.4V0.9V2.4V2.4V4.6V0.2V2.3V4.0V4.5V4.6V4.5V4.7V0V0V4.2V2.2V2.3V2.3V2.4V2.4V2.4V2.4VON:0V OFF:4.5V4.2V4.6VTKMOQSLNPR15PR703048DS8FSBCKO8FSRDATAO8FSLDATAO8FSLRCKOTEST1TEST0BCKODATAOLRCKONRSTOR50 470VDD10KR180.01C17VDDGND1716VDDR52 470R51
23、470NC201918232221NC262524NC292827LRCKPCMDBCKEMPHMCK1820191617DATALATCLKSUBQSQCK3713119151439381211NRAMRS25SDATA15148FSSDAC26271312SGATESCK0.01C6091110P/SNNODR87DRONNFRNT333PC5065LRCKI4DATAIBCKIVDDNCGND21MCKTHNC585960MCKOHCKOMMOD0MMOD1LRLHNMUTENC555657525354XOVDX5051XI4934C4MMONSCORSENSE401093487DGND
24、RST65+7VMGNDD+5VDOUT4321+7VC56VDD100u10100PR17100VDDR57 1M16.93MHzR16C13C160.1+51C19X1C1815P+B+7VGNDTM+54TM-OPN SWCLS SW13227+B2324+5VR72R7147K47K272625SDATANCNCSCKSGATE2526C4710K0.1R80+5V47KR81+BR74XT247KR7347K29NCAVDD28REFDEFECT3031100K34VSSX13233X2RMUTER753536OUT2IN212VCC3NC4GNDOUT1VREF756VS89IN1
25、4040383937LATCLK37DATASENS3839+5V41+5VVDDR47C26R30 3.3KVDDVDD4.7K5.1KR56C52R94220P+-56DVDDDVSSCKSMCLKBICKSDATASMUTELRCKDFSDEM1DEMO5VDAR3435DACTEST1DACTEST0NC3132GNDALLZ3334LO+LO-3637VDAL38+C12330u6.3C150.1111291087C430.016PD4341RO-RO+3940GNDARRZ42VDDNCGNDXRESETNDACTEST244454647100R48C5722P0.1C423410
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