Kenwood-DPC-885-Service-Manual 电路图 维修手册.pdf

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1、PORTABLE CD PLAYER DPC-885 SERVICE MANUAL 1997-9/B51-5352-00 (K/K) 3447 Front glass (B10-2397-04) Holder (J19-5841-03) Cap (F09-0133-04) Electric circuit module (W02-2527-05) Cover * (F07-) Miniature phone jack (E11-0278-05) Cap (F09-0132-04) Packing (G53-0073-04) Miniature phone jack (E11-0371-05)

2、Format System.Compact disc digital audio system Laser .Semiconductor laser Audio Frequency response.20 Hz 20 kHz, 3 dB Headphone output (16 , 1 kHz).10 mW + 10 mW (Headphone output level / impedance.max. 450 mV / 2.2 ) For CHINA and Duty Free Shop in JAPAN Digital output optical.-21 dBm -15 dBm (wav

3、e length 660 nm) For other countries LINE output level/impedance.550 mV/702 Power supply External DC supply.DC 4.5 6 V Rechargeable batteries (NB - 130) x 2.DC 2.4 V Commercially-available alkaline batteries (LR6/AA) x 2.DC 3 V Battery life (continuous repeat playback) (Figures inside parentheses ar

4、e the values when D.A.S.C. is ON.) Commercially-available alkaline batteries (LR6/AA) x 2 .Approx. 17.5 (15) hours Rechargeable batteries (NB-130) x 2.Approx. 9.0 (8.0) hours Dimensions (W x H x D).132mm x 32mm x 153mm (5 - 3/16 x 1 - 1/4 x 6) Weight (net).270 g (9.5 oz.) SPECIFICATIONS 1. KENWOOD f

5、ollows a policy of continuous advancements in development. For this reason specifications may be changed without notice. 2. Sufficient performance may not be exhibited at extremely cold locations (where water freezes.). NotesNotes Illustration is K type. * Refer to parts list on page 17. In complian

6、ce with Federal Regulations, following are reproductions of labels on, or inside the product relating to laser product safety. KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J. DANGER : Laser radiation when open and interlock defeated.

7、AVOID DIRECT EXPOSURE TO BEAM COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 1 RadioFans.CN 收音机爱 好者资料库 DPC-885 2 CONTENTS/ACCESSORIES Stereo headphone.(1) (W01-0923-05) : M2 Stereo headphone.(1) (W01-0940-05) : KPMTEX AC plug adapter.(1) (E03-0115-05) : M,M2 Rechargeable battery .(2) (W09-1237-05) Remote cont

8、rol.(1) (A70-1163-05) : MX (A70-1164-05) : KPET AC adapter.(1) (W08-0658-05) : E (W08-0659-05) : T (W08-0660-05) : X (W08-0667-05) : M (W09-1251-05) : KP Carrying case.(1) (W01-0939-05) SPECIFICATIONS .Top cover CONTENTS/ACCESSORIES .2 CIRCUIT DESCRIPTION.3 ADJUSTMENT.6 PC BOARD . 7 SCHEMATIC DIAGRA

9、M . 9 EXPLODED VIEW .15 PARTS LIST.17 Accessories CONTENTS COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 2 RadioFans.CN 收音机爱 好者资料库 DPC-885 3 CIRCUIT DESCRIPTION 2.80 2.80 1.97 1.73 1.49 1.21 0.89 0.60 0.00 KEY OFF DOWN B.BOOST UP STOP PLAY KEY OFF MKEYV V 2.80 2.00 1.60 1.20 0.80 0.00 KEY OFF REPEAT P.MODE D

10、ASC KEY OFF MKEYV 2.80 1.97 1.73 1.49 1.21 0.89 0.60 0.00 KEY OFF DOWN B.BOOST UP STOP PLAY KEY OFF MKEYVBATT 1.75 1.41 1.13 0.00 OK TO CHARGE FLASH CHARGE INDICATOR AUTO POWER-OFF (IC3, 28Pin) UNIT KEYS(1)UNIT KEYS(2)LCD H/P REMOCON KEYSBATTERY VOLTAGE (IC3, 29Pin)(IC3, 33Pin)IC3 (31pin, 32Pin) CD-

11、ASP CD-DSP+1bitDAC uPD78063GF-138 LCD+A/D KEY LCD KSM542DBA CXA1982Q CXD3009Q RL5C356 8M D-RAM u-COM COM X 4 SEG X 13 A/D KEY DISPLAY FOK IC 6 IC 2 IC 1 IC 3 AUDIO LINE 1 2 3 4 5 6 7 TRAVERSE UNIT CONTROL REMOCON SENSOR AUDIO OUTPUT SHOCK PROOF MECHA. DRIVER LINE 1. Main microprocessor : PD78063GF-1

12、38 (X32-, IC3) 1-1 Microprocessor periphery block diagram 1-2 A/D converter COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 3 RadioFans.CN 收音机爱 好者资料库 DPC-885 4 CIRCUIT DESCRIPTION 1-3 Pin description microprocessor : PD78063GF-138 (X32-, IC3) Pin No.NameI/OFunction 1NCINot used 2SQCKOClock output for Q-data in

13、put of CXD3009Q 3SDTOODATA input to RL5C356 4SDTIODATA output to RL5C356 5SCKOCLOCK output to RL5C356 6ICConnected to VSS 7,8X2,1Connected to oscillator (5.00MHz) 9VDDPower supply 10XT1Connected to GND 11XT2Not used 12RESETIMicroprocessor reset 13SCORIInterruption of fall edge of SCOR 14RCIIRemote c

14、ontrol input 15NCNot used 16FOKIFocus clock detection terminal (CXA 1982Q) 17GFSNot used 18HDATAOOutput terminal for LCD remocon display 19B.BOFor bass boost control 20SGAINNot used 21CHDTIData comparator monitor input for RL5C356 22XSOEOSerial data output permission signal for RL5C356 23,24NCNot us

15、ed 25DEFECTOMirror bottom-hold-enable 26NCNot used 27AVSSConnected to GND 30VOLIVolume level input of main unit 28,29KEY1,KEY2IKey input from main unit or wired remote control 31,32BATTV1,2IDetection of voltage level on rechargeable battery 33HP KEYIHP Key input terminal for display 34NCNot used 35A

16、DONOA/D converter on/off 36AVDDAnalog power supply for A/D converter 37AVREFReference voltage input for A/D converter 38SLTSWIStart limit switch of pickup 39DCDC ONODC/DC converter control (H:ON, L:OFF) 40VSSGND 41ADPTIAdaptor detection (H:OFF, L:ON) 42CHRGOKIVoltage level of rechargeable battery de

17、tection (H:NG, L:OK) 43CHRGOCharge power supply 44XRSTOIC reset output terminal (CXA1982Q, CXD3009Q, RL5C356) 45DMUTEOMotor drive mute output terminal 46RMUTEOAnalog mute output 47TESTIFor test mode 48NCNot used 49PSWOHeadphone amp control 50HPMUTEOMute output terminal for LCD remocon 5154COM0-3OCom

18、mon signal output for display 55BIASOBias input for display 56-58VLC0-2OExternal resistor connected to power supply for dividing display 59VSSGND 6074S0S14OSegments signal output for display 7583NCNot used 84LEDOPower supply ON/OFF for optical output 85SHOCKOShock proof on/off (CXD3009Q) D.A.S.C. ON

19、 : L 86XLATOLATCH output to CXD3009Q 87CLKOCLOCK output to CXD3009Q 88DATAODATA output to CXD3009Q 89SENSISENS input from CXD3009Q 90PLUGIRemocon data input terminal COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 4 DPC-885 5 CIRCUIT DESCRIPTION Pin No.NameI/OFunction 91LINEILine out detection terminal 92HOLDI

20、HOLD switch on/off 93LDOLaser diode output terminal 94LIDSWICover open detection switch 95XWIHOWrite permission signal output for RL5C356 96XEMPIRead prohibition signal input for RL5C356 97XWREIWrite prohibition signal input for RL5C356 98XQOKOCD sub code Q OK signal output for RL5C356 99XLTOLATCH o

21、utput to RL5C356 100SQSOICDQ code data input from CXD 3009Q 2. Test Mode 2-1 Setting the test mode This model can be set to the test mode by shorting the test-land of the X32 board. START Turn on lid switch Is test land shorted? Test mode processing Is key pushed? Track No. 01 is displayed. TEST MOD

22、EYES NO NO See following table. Normal operation No.ModeKey NameFunctionTRACK No. display 105 PLAY/PAUSE (6) 1. Focus servo.ON 2. Tracking servo.ON 3. Feed servo.ON Absolute time at position of limit SW is displayed in time area, then play is started. 05 After 1, 2 and 3 are finished, track No. play

23、ed currently and its play time are indicated. 203 UP () 1. Focus servo.ON 2. Tracking servo.OFF 3. Feed servo .OFF 03 301 STOP (7) 1. Focus servo.OFF 2. Tracking servo.OFF 3. Feed servo .OFF Test mode can be can celled while pressing the STOP (7) Key in 01 mode. 01 4While pressing the P. MODE/SEARCH

24、 Key, turn the AC ON All LCD is turned ON for 2 seconds. All LCD is turned OFF for 2 seconds. Returned to normal mode. 2-2 Key and functions avild in test mode COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 5 DPC-885 6 ADJUSTMENT No. 2 1 LASER POWER Apply the sensor section of optical power meter on the picku

25、p lens. Short the test land. Confirm that the display is . Press FF Key and confirm that the display is 03. On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 1.0 Vp-p or more. 3 4 5 ITEM FOCUS ERROR TRACKING ERROR FOCUS GAIN TRACKING GAIN INPUT

26、 SETTING Test disc KTD-03 Test disc KTD-03 Test disc KTD-03 Apply signal of 1.0kHz, 0.05Vrms between Check-land FE1 and FE2. Test disc KTD-03 Apply signal of 1.0kHz, 0.05Vrms between Check-land TE1 and TE2. OUTPUT SETTING Connect an oscilloscope as follows. CH1:RF (Check-land RF) CH2:TE1 Press the F

27、F key. Confirm that the display is . Connect a LPF between Check- land FE1 and FE2 to which connect an oscilloscope or AC voltmeters. Connect a LPF between Check- land TE1 and TE2 to which connect an oscilloscope or AC voltmeters. Connect an oscilloscope as follows. CH1:RF (Check-land RF) CH2:TE1 PL

28、AYER SETTING Press the PLAY key . Confirm that the display is 05. Press the PLAY key . Confirm that the display is 05. Press the PLAY key . Confirm that the display is 05. ALIGNMENT POINT TE BALANCE VR5 FOCUS GAIN VR4 TRACKING GAIN VR6 FE BALANCE VR3 ALIGN FOR Optimum eye pattern Symmetry between up

29、per and lower Two VTVMs should read the same value. Two VTVMs should read the same value. FIG. (d) (e) L.P.F L.P.F FE1 FE2 AC voltmeter GND 1.0kHz 0.05Vrms L.P.F L.P.F TE1 TE2 AC voltmeter GND 1.0kHz 0.05Vrms TEST RF VR3 FB T.B VR5 VR6 VR4 VC TG FG TE2 FE2 FE1 TE1 Note: Test DISC KTD-03, TCD-783 or

30、equivalent LPF : Around 47k + 390 pF or so. Step 15 are in Test Mode. (d) Focus Gain Two VTVMs should read the same value. (e) Tracking Gain Two VTVMs should read the same value. Check-lands and alignment point COVER/CIR/EXP-INT 98.4.24 2:57 PM yW 6 ACEGIBDFHJ 2 1 3 5 7 4 6 PC BOARD(Component side v

31、iew)PC BOARD(Foil side view) 78 (X32-3350-01): M2 (X32-3350-10): KPET (X32-3350-21): MX (X32-3350-01): M2 (X32-3350-10): KPET (X32-3350-21): MX Refer to the schematic diagram for the value of resistors and capacitors. DPC-885(K) PCB/SD( 98.3.20 4:43 PM y W 1 ABDFHJCEGI 2 1 3 5 7 4 6 A D CB M F E M M

32、ECHA ASSY(D40-1565-05):KSM-542DBA (X32-3350-XX) IC1 IC2 CONTROL STEP DRIVE (FOK L) CONTROL SLED GAINQ21 (DEFECT DET.) COMPARATOR DEFECT DET. SPINDLE GAIN CHANGE-OVER (NOR./HI SPEED) D.S.P D5 D3 Q20 D15D14 0N/OFF APC CN2 B C COIL FOS. COIL TRK. LD (2/2) IC10 PD LD AB CN1 CN6CN3 C A D13 Q11 E1 FB DIOD

33、E LASER Q17 DET. RF/SERVO DEFECT (1/2) IC10 Q15 TE2 TE1 VC FE1 FE2 Q16 TG TB Q13 Q14 D12 FG 3.1V 2.5V 0.8V 2.7V 1.1V 1.1V 1.1V 1.2V 1.1V 1.1V 1.1V 0V 0V 2.6V 2.7V 2.6V 1.3V 1.2V 1.4V 1.3V 1.3V 1.4V 1.3V 1.3V 1.3V 0.3V 1.3V 2.6V 1.3V 1.2V 1.3V 1.2V 1.7V 0V 0V 2.6V 1.4V 2.6V 2.7V 1.4V 1.4V 1.1V 1.5V 1

34、.6V 0.6V 1.2V 2.7V 2.5V 2.6V 2.5V 0V 2.7V 0V 0V 2.7V 0V 2.7V 2.5V 2.6V 2.5V 1.2V 1.6V 1.4V 1.4V 0.7V 1.0V 1.4V 1.4V 1.4V 1.4V 1.3V1.4V 1.4V 1.4V 1.4V 1.4V 0V 2.7V 0V 2.7V 2.6V 2.6V 2.6V 1.3V 0V 2.9V 1.4V 1.4V 1.4V 1.4V 1.4V 1.4V 1.6V 1.4V 1.4V 2.7V 1.4V 1.4V (BATTERY) 5.5V 2.9V 2.7V 5.0V 1.4V 2.7V 0

35、.8V 0.6V 1.4V 1.8V 1.4V 2.0V 2.2V 0.2V 1.4V 1.4V +B +B +B +B +B+B+B +B +B +B +B +B +B +B +B+B +B +B 560 R217 16.9344MHz IC10(2/2) Q21 R213 6.8K 330K R216 MDP 40 Q17 R214 18K R119 22K + 47u4 C114 R215 470 R211 470 130 R337 C2PO C4M +B IC10(1/2) Q15,16 R452 27K +B +B+B +5V 0.1 C6 C2 0.1 +B +B +B+B+B L

36、4 22 R204 C213 +B+B R212 22 C201 + 47u4 R201 39 +B+B SYSM 12P 22K R23 R205 4.7K 0.033 R108 47K R118 180K 1.6K R116 34 - +7 6 5 38 +B +B +B R144 22K R142 1.3M R136 R135 R141 R143 4.7K 390K R117 L11 +B+B 100K 82K 220P 15 14FCS(-) FCS(+) 12 11 10F A/L TRK(-) 9 8 7LD VCC VC + A/L SHORT LAND VCC PD1 PD2

37、VC 6GND VR PD4 5 1 PD1 PD2 2 E3 +B+B C211 100P 330 R218 49 47 39 15K 330K SLD. MOTOR 1 LMT. SW 1 X3 13TRK(+) - 2 + SPD. MOTOR + 2 1 2 - SPDL+ SPDL- SLED+ SLED- R206 1M R120 1M C120 150P SLTSW GND 41 40 40 25 27 29 31 SPDL+ SPDL- SLED+ GND SLTSW SLED- 122121 91 R129 5 6 7 9 7 5 13 3 FCS+ FCS- TRK- TR

38、K+ AL F VC VCC LD GND VR PD E PD1 PD2 132541514131211109876 VR3 22K10K R127 10K R130 R131 24K R128 4.7 + C126 47u4 R132 24K C116 0.047 C117 0.01 C118 4700P C119 0.01 R114 2.2K R115 4.7K R113 22K C121 33P R137 100K 14 12 13 11 10 R121 100K C115 0.01 +C26 22u4 C113 0.01R110 C112 1 R109 220K VR4 22K C1

39、08 R104 C107 0.01 R103 510K C106 C104 0.1 R138 R107 + C105 4.7u6.3 R101 100 C102 0.47 C101 220P R102 56K C103 220P C110 1 4 8 32 0.1 +- C125 R134 1M R123 1M VR5 22K 22K VR6 180K R106 100 C129 0.1 1.8M 6.8K R122 R125 12K R124 10K R126 10K R133 1M 180K 0.1 C122 + C127 22u4R140 C123 0.022 25 TAMFOK 12 26 FSET CC2 1127 TG2 CC1 1028 TGU CB 929 SRCH CP 830 FEM RFI 7 31 FEO RFO 6 32 FLB RFM 5 33 FGD LD 4 34 FDFCT PHD 3 35 FEI PHD1 2 24 SENS FE.B 37 23 C.OUT F 38 22 XRST E 3