Kenwood-DP-3300-D-Service-Manual(1) 电路图 维修手册.pdf

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1、Knob (Button) ( K29 -251 6 -04) Phone jack Knob Knob Button) (E11-0127-05) (K29-1641-04) (K27-1514-O4l Top plate (A52-0099-02) Panel assy A20-501 1-021 Knob (Button) lK29-25a1-O4lx4 Knob (Buttonl Knob (Button) (K29-2546-04)x9 (K29-2581-04)x15 lnsu latJr (J02-01 88 -1 5lx4 Phono jack (E 1 3-023O-05)x

2、2 Knob lK29-2584-o4l Cover Slide switch ( F07-0499 -04) (S31 -2094-05) Slide switch Power coard bushing (s31-2083-05) (J42-0083-051 Phono jack (E 13-0130-05) AC Power coard* E30- In complicance with Federal Begula- tions, f ollowing are reproductions of labels on, or inside the product relating to l

3、aser product safety. KNWOOD-Corp. certifies this eguin. ment conforms to DHHS Regulations No. 21 CFB 1040. 10, Chapter 1, Sub- chapter J. DANGER : Lasor r8diltion when opon and intrlock dofeatsd. AVOID DIRECT EXPOSURE TO BEAM, *Refer to parts list on Page 51 . RadioFans.CN 收音机爱 好者资料库 1 . 2. 4. Remov

4、e eight screws db retaining the side panels to the chassis, and remove the side panels. Then remove six screws tixing the top panel to the chassis frame, and remove the top panel. DISASSEMBLY FOR HEPAIR the Mechanism assy the tray toward the Move the gear on the left side of with your finger ( ) and

5、 Putt tront ( ). a 5. Pull up the four claws on the tray panel in the direction of the arrows and remove the tray panel by pulling it ouT in the ciirection . Push the tray back ( G! ) Disconnect three connectors (CN3, CN4, CN5) from the CD plaver unit (X32-1090-11) (G ). Remove four screws retaining

6、 the Mechanism assy and remove the Mechanism assy by pulling it slightly backward thenrupward ( GF ). RadioFans.CN 收音机爱 好者资料库 2 3 5 7 7 7 10 10 12 12 12 12 12 12 12 12 13 13 13 13 16 16 16 17 6-3. Explanationof functions . 14 7. Signal processor lG : GX23035 (X32-1090-11 :lC3). 14 7-1. Block diagram

7、 14 7-2. Explanation of terminals 15 8. Digital output signal demodulator lC : CXDl075P 7 8 9 9 (X32-1090-11 : lC9) . B-1 . Block diagram B-2. Terminal connection diagram 8-3. Explanation of terminals 17 . . . 2 0 21 21 20 20 24 27 4. 5. E E E E tr) I!E)EElE) u g E E g U E tr ,-l l-t * L, L, i. CO N

8、TENTS/THANSPO RTATI O N SCREW TRANSPORTATION SCREW DISASSEMBLY FOR REPAIR BLOCK DIAGRAM CIRCUIT DESCRIPTION 1. Description of components . . 1-1 . DAC UN rT (X25-2860-1 1) . . . . 1_2. CONTROL UNIT (x29-1780-00). . . 1-3. CD PLAYER UNIT (X32-1090-11) . . 2, Circuit description 2-1. DAC lnterface cir

9、cuit (X25-286O-11) . . . . . 2-2. Distortion correction circuit lx25=2860-11). 2-3. Dropout control circuit (X29-1780-00) Dual D Flip-Ffop lC : TC74HC74F (X25-2850-00 : lCl,lC4) 3-1 . Block diagram 3-2. Truth table . Hex D Flip-Flop lC : TC74HC174F (X25-2850-00 : lC3) 4-1 . Terminal connection diagr

10、am 4-2. Truth table . DA Converter : PCM56P-K (X25-2860-1 1 z lCl,lC2l 5-1 . Block diagram/Terminal connection l i - - u tout dI l S-2. ExJtanation of terminals Digitalfifter: SM58O4B (X25-2860-11 : lC4) . . 6-1 . Block diagram 6-2. Explanation of termlnals TRANSPOBTATION SCREW Before operation, rem

11、ove the two red screws attached to the bottom of the unit used during transport from the factory. Remove both screws using a coin, etc. and, after removing, retain them together with the Warranty card and other documents. When the unit is to be trans- ported again, be sure replace the two screws to

12、their origi- nal position. ATTACHING THE TRANSPORTATION SCREWS 1. Turn the power ON without loading disc. 2. Turn OFF the power after the display shows the follow- inq indication. 8-4. Explanation of functions . . . 9. Microcomputer : PPD75208CW-040 (X32-109011 : lCl1) 9-1 . Terminal connection diag

13、ram 9-2. Explanation of terminals . . . ADJUSTMENT . Adjustment Q6nlrna I rEgrqgs Abgleich Description of Signal Waveform, Connection of Measuring Instruments 30 VOLTAGECHECKTABLE . 34 Pc BoARD (CoMPONENT slDE vtEvQ . . . . 1? - pcBoARD(FO|LSIDEVIEW) . . 38 SCHEMATIC DIAGRAM 41 EXPLODEDVIEW(MECHANIS

14、M) .49 EXPLODEDVIEW(UNIT) . 50 PARTS LIST . 51 SPECIFICATIONS . BACK COVER 3. Install the transportation screws. RadioFans.CN 收音机爱 好者资料库 CO NTE NTS/THAIISPO RTATI O N SCREW TRANSPORTATION SCREW DISASSEMBLY FOB REPAIR BLOCK DIAGRAM CIBCUIT DESCRIPTION 1. Description of components . . 1-1. DAC UN|T (X

15、25-2860-11) . 1_2. CONTROL UNIT (x29-1780-00). . . r-3. cD PLAYER UNIT (X32-1090-11) . . 2. Circuit description 2-1. DAC lnterface circuit (X25-2860-11) . . . . 2-2. Dislortion correction ci rcuit (x25,2860-1 1 ) . . . . 2-3. Dropout control circuit (X29-1780-00) Dual D Ff ip-Flop lC : TC74HC74F (X2

16、5-2850-00 : lCl,lC4) 3-1 . Block diagram 3-2. Truth table . Hex D Flip-Flop lC : TC74HC174F (X25-2850-00 : lC3) 4-l . Terminal connection diagram 4-2. Truth table . DA Converter r PCM56P-K (X25-286O-11 : lCl,lC2) 5-1 . Block diagram/Terminal connection d i - - u l q q l d l l l 5-2. ExJlanation of t

17、ermrnats Digitalfifter : SM58O4B (X25-2860-11 : lC4) . . 6-1 . Block diagram 6-2. Explanation of terminals TRANSPORTATION SCREW Refnre nnpr:ti.n remove the two red scfews attached v P v , u ! , v , , v to the bottom of the unit used during transport from the factory. Remove both screws using a coin,

18、 etc. and, after remoVing, retain them together with the Warranty card and other documents. When the unit is to be trans- ported again, be sure replace the two screws to their origi- nal position. ATTACHING THE TRANSPORTATION SCBEWS 1. Turn the power ON without loading disc. 2. Turn OFF the power af

19、ter the display shows the follow- inq indication. 8-4. Explanation of functions . . . 9. Microcomputer : PPD75208CW-040 (X32-1090.11 : lCl1) 9-1 . Terminal connection diagram 9-2. Explanation of terminals . . . ADJUSTMENT . Adjustment 6-3. Explanationof functions . 14 7. Signal processor lC : CX2303

20、5 (X32-1090-11 :lC3). 14 7-1. Block diagram 14 7-2. Exolanation of terminals 15 8. Digital output signal demodulator lC : CXDl075P 2 3 5 7 7 7 7 I 9 9 10 10 (X32-1090-11 : lC9) . B-1 . Block diagram B-2. Terminal connection diagram 8-3. Explanation of terminals 16 16 16 17 17 . . . 2 0 21 21 20 20 2

21、4 27 3. 4. 5. 12 12 12 12 12 12 12 12 13 13 13 13 P6nlano I rE9rqgs Abgleich Description of Signal Waveform, Connection of Measuringlnstruments .30 VOLTAGECHECKTABLE . 34 Pc BOABD (coMPoNENr slDE vtEvQ . . . 1? - pcBoARD(FO|LSIDEVIEW) .- . 38 SCHEMATIC DIAGRAM 41 EXPLODEDVIEW(MECHANISM) .49 EXPLODED

22、VIEW(UNIT) . 50 PARTS LIST . 51 SPECIFICATIONS . BACK COVER / (Lr) Y/ v I fl U ElEtElElCt C gltEtrtE) rr ID ID IEI E E0tD ,-rr-r * c; L, L, ili. 3. lnstall the transportation screws. DISASSEMBLY FOR REPAIR 7. Turn the Mechanism assy upside down, remove two screws tixing the rod and, while lifting th

23、e motor block diigonally upward (E ) pull the pickup in the direction of the arrow ( (D ) 8. When assembling the pickup block, insert the chassis of the Mechanism assy in the direction of arrow . Align the position of the screws and secure them ( (E ). BLOCK DI ENVELOPE WAVE DET, FFIAME SYNC. DET. F

24、RAME SYNC. PBO. TECT DEINTERLEAVE TIME BASE GENERATION TIME BASE CORRECTOB SIGNAL PBOCESSING SYSTEM CONTROL CIRC ERROR CORRECTION - | r I | v7, I -l- rl ll F BUS INTER FACE E- U z U o 01 (x29- ) tc1 (cx20108) r- OUTPUT IN. TER FACE TRACKING BFIAKE u- rcl (cx20109) (r PDO tc3 (cx23035) - - - - _J-F-

25、tc5l2t2l,o2l3l3l TBAY MOTOR DRIVE GC- OPEN CLOSE NT J L I I ,rl FEED MOTOB I FEED I E _ J J U FEED DISC TRAY MOTOR MOTOR MOTOR OCK OIAG BAM :1 TER LEAVE OAJE iRATION BASE iECTOR qL ESSING EM FOL ERHOR ECTION tcs,tc7, tc9 f c1 1,ol,o3 tc13l1l2l tc7 DIGITAL DATA INV. lc13-tc21 C ERROR IRECTI HEADPHONE

26、 AMP. HEADPHONE AMP. DIGITAL OUT t- -.,l-w.-6)-AIBY q t b I r-Jl-a_J tl l- IT ,7v ,ln tc6,tc8, lc10 c12,o2,A4 tcls(2121 ol 1 rc l1-fllffiej- L I-U + r h PH3 010 /v rc10(1/6) Q 1 3 ti t 1 2 V -r- -32V DATA INTER. POLA- TION DIGITAL FI LTER SOD A SID LINE OUT(R) VARIABLE OUT. FL DISPLAY CIRCUIT DESCRI

27、PTION 1. Description of components 1-1. DAC UNIT (x25-2860-11) ComponentUse/Function Operation/Condition/Compatibility lcl ,lc2PCM56P.K D/A converterConverts digital value into agalog quantity. tc3,rc4NJM5532D.D l-V converter 11/21 : Converts DAC current input into voltage. (2121 : Generates offset

28、voltage or distortion correction. tc5-rc10NJM5532D-D Op ampForms a GIC (General lmpedance Converterl with LPF. tc ,1c12 pPA6SHA Dual FET Forms the 1st stage of output amp. in the final stage. L I Jcx20197 Op ampAmplifier device of output amp, a 1 A SM5804BDigital filter Digital filter with 4-fold ov

29、ersampling. L t 3TC74HCO4F HEX inverterInverts the logic of digital filter output and delays data. L t oTA79LO06P 3-terminal reoulator (-) power for DAC. ct7TATSLOO6AP 3-terminal regulator ( + ) power for DAC. tc8,tc19 TC74HC74PDual D flip-flop Used in distortion corrector circuit tc20TC74HC393P Dua

30、l 4-bit binary counterUsed in distortion corrector circuit. tc21TC74HCO4P HEX inverlerUsed in distortion corrector circuit. PH1 T95-0035-05Photocoupler Interface between digital filter and DAC (Used for data). PH2T95-0036-05 Photocoupler Interface between DAC and X32 (Emphasis). PH3T95-0036-05 Photo

31、coupler Interface between DAC and X32 (Muting). 01 -o42SC945(A)(O,P) TransistorUsed in cascode stage of 1 st stage o.f output amp. 05.0625K170(V)FET Begulated power supply for constant-voltage circuit of ist stage of output amp. 07,Q82SC945(A)(O.P) Tra nsistorRegulated power supply for differential

32、amp. of 1st staqe of output amp. 01 0DTCl 14YFF SwitchDe-emphasis relav driver Q1 1 DTC 14YFF SwitchMuting relay driver. r 012DTC1 14YFF SwitchEmphasis photocoupler driver. n 1 ? DTC1 1 4YFFSwitchMuting photocoupler driver. 0 1 42SA733(A),(O,P) SwitchUsed for supplying voltage to the photocoupler ou

33、tput. D1 .D2RD5,iJSB)Zener diodeSupplies potential to the cascode stage of lst stage of output amp D3,D4RD5.1JS(B) Zener diode Determines the potential of constant-current circuit of differential amp of 1 st staqe of output amp. D5,D6RDl OES(B) Zener diode Feference power supply for constant-voltage

34、 circuit of 1st stage of output amp. D8t S s t / u SwitchProtects I C 1 6 a ga i nst cou nte r-withstan-d i ng vol taqe. D 10,D1 1t s S t / t ) SwitchUsed for countermeasure against static electricity. D12.D13iSS133 or 1SS176 SwitchUsed for short-circuiting counter-electromotive voltaqe of relav. u

35、t 4RDl OES(B Zener diodeDetermines the operating voltage of transistor SW 014 L i t c1 SS1 76 SwitchProtects lC1 7 against counter-withstanding voltage. Table 1-1 l-, a( t: t ji 1-2. CONTBOL UN|T (X29-1780-00) Component Use/FunctionOperatioryCond ition/Compatibil ity tclcx201 09Optical pickup preamp

36、. Focusing error signal generation, tracking error signal generation, RF signal generation and phase compensation, auto-symmetry correction ci rcu i t. tc20/21M5218P Tracking error polarity detector When tracking error is ( + ) : + 4V output. When (-) : -4V output. tc2l2l2lM5218PFlaw detector level

37、comparator Normally : -4V output. When flaw is detected : + 5V output. I L JpPD4053BC Tracking error signal select switch The error signal supplied to the tracking servo circuit is selected accord- ing to the logic of the MIRR signal supplied via pin 11. When MIRR is L : Normal tracking error signal

38、. When MIRR is H : Constant voltage at + 0.5V or -0.5V. The polarity of the constant voltage supplied when the Ml R R signal is H is selected according to the tracking error polarity detector output supplied via pin 1O. When H : + 0.5V. When L : -0.5V. The error signal supplied to the tracking servo

39、 circuit is determined according to the polarity of the flaw detector output supplied via pin 6. When L : Error signal is supplied to the tracking servo circuit. When H: Error signal is not supplied to the tracking servo circuit. Table 1-2 7 1-3. CD PLAYER UNIT (X32109011) CIRCUIT DESCRIPTION 012 :

40、PLL compensator circuit l2l2l : CLY compensator circuit Generates search pulses for focusing servo, tracking servo and feed m servo. Generates microprocessor reset pulse. EFM decoder, correction/intetpolut!9n citcuit, PLL cit Signal processor RAM (16K). (LPF + amP.1. (LPF + level shifter). 11l2J : C

41、LV compensator silsui (amp.) l2l2l : TraY driver circuit Digital data inverter circuit. Controls digital signal supply to DAc Converts digital audio data into Sony/Philips digital l/O foimat to g transmission signal lC9 demodulation amp, pulse transformer driver Controls disPlaY, key-inPut and servo

42、 lC. Interface circuit between microprocessor 9!ql! if:919y + 5V resulated voltase for a449lel9-!-!i!91 -5V requlated voltage for digital and PLL lines + 5V regulated voltage for servo line. Error amp oI x12V constantregulated circuit for DAC Digital data inverter circuit For loqic inversion usi -di

43、sital SW. Current buffer for tracking actuator, feed motor and tray motor or ci rcu itrv. Used to prevent operation of eye-pattern center sampling circuit w the disc motor is not driven inversion and level shifting of MON ortp,4-|1on 9I?9991 lnverts digital data at high speed and amplifies the curre

44、nt Discharges -5V DAC unit to 0V. Supplies -5V to DAC unit An emitter-follower used for supplying + 5V to DAC unit Controts SWs Q6 and 07 Controls potential at base of Q8 Eliminates offset of motor driver circuit while me19!l1l99q9d Turns -5V for laserON/OFF Power supply in the constant-voltage regu

45、lated laser power supply Gomponenl Use/Function Operation/Condition/Compatibility Goes H when a signal is output from the pickup Detects the + side envelope of RF signal. (Small time constant) Detects the + side envelope of RF signal. (Large time constant) When lC2l2l2l output becomes -4V, the switc

46、hes function to vent the negative potential to be applied to pin 6 of lC3 When lC2ll/21 output becomes -4V, the switches function to vent the negative potential to be applied to pin 10 of lC3 When the flaw detector level goes H by detecting a flaw, the turns the MIBR signal also H. atl 25C945(A)(o,P

47、) FOK current buffer a22SC945(A)(o,P) RF siqnal enveloPed detector o32Sc945(A)(o,P) RF siqnal enveloped deteclor Dl ,D21SS176 or 1SS131Switch D3,D41SS176 or l SS131 Switch D51SS176 or 1SS131 Switch Table 1-2 M51 951 ASL cxK581 6M TCT4HCOOP AND gate (switch) TC74HC08P Digital output signal modulator

48、lC cxDl 075P withstanding buff. rc12-lCl 5 3-terminal 3-terminal regulator TC74HC74P Current amPl if ier transistor STA341 M Di gital transistor switch Dioital transistor switchDTA1 24EN 2SC1923(R,O) 2SA733(A)(O,P) 2SC945(A),(O,P) 2SA992(F,E ) 2SC1845(E,F ) 25 K246(Y,G R ) 2SA733(A)(O,P) 25K246(Y,G

49、R ) Table 1-3 ($ rs CIRCUIT BESCHIPTION Component Use/Function Operation/Condition/Compatibility o142SC945(A)(O.P) Ripple filter Transistor ripple filter for constant-voltage regulated VDD supply circuit for FLdrivers lCs (lC12to lClb). u t 32SA1 286 Ripple filter Transistor ripple filter for constant-voltage laser power supply circuit. Cl zL5240 Current bufferCurrent buffer for disc motor driver circu