Kenwood-DPFJ9030-cd-sm 维修电路原理图.pdf
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1、70%MULTIPLE COMPACT DISC PLAYERCD-4900M/DPF-J9030SERVICE MANUAL 2000-1/B51-5594-00 (K/K) 2738DISC SKIP$ ?&?PUSH OPEN)REPEATCONFIRMDISPLAYCONTINUROUS PLAYRANDOMOPERATIONTIMER PLAYDISPLAY|BOFFONSTANDBYPOWER ON/STANDBYDISPLAY|ABARLOUTPUTSYSTEMCONTROLSL16TEXTTEXTDIGITALOUTOPTICALABKnob(TIMER)(K29-7717-0
2、8)Front glass(B10-3557-08)Front glass(B10-3558-08)Front glass(B10-3559-08)Indicator(B12-0326-04)Dressing panel *(A21-)knob(K29-7716-08)Panel(A60-1752-18)Metallic cabinet(A01-3738-08)Phono jack(E63-0120-05)Miniature phone jack(E11-0360-05)Power cord bushing(J42-0083-05)Miniature phone jack(E11-0293-0
3、5)AC power cord *(E30-)* Refer to parts list on page 26.In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the product relating to laserproduct safety. Please refer to the service manual CD-223M/DPF-J3010/CD-224M/DPF-J5010 (B51-5409-00) if need moreinformati
4、on. Refer to CD-2260M/2280M/DPF-J7010/J9010 service manu-al (B51-5416-00), if you require sub microprocessor (IC3:X25) in detail.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlockdefeated.AV
5、OID DIRECT EXPOSURE TO BEAMRadioFans.CN 收音机爱 好者资料库Audio (E30-0505-05)(E30-2816-05)(E30-2861-05)cord . (2)System control cord . (1)Batteries (R6/AA) . (2)Communication cord . (1)REMOTE CONTROL UNIT RC-KB2REMOTE CONTROL UNITRC-P0714TUVXYZW/.()MODESETSELECTORDISCDELETE/CLEARSPACECHARAC./CHECK/P.MODERAN
6、DOMSELECTONDISPLAYCONFIRMABCDEFGREPEATBESTPOWER324HJKLMNOPQRS17685+100+10097ENTER64?1?DISC SKIPDOWNUPCURSORCHARACTERDOWNUPLEFTRIGHTIRemote control units . (2)(A70-1326-05): RC-KB2Battery cover (A09-1176-08)(A70-1335-18): RC-P0713Battery cover (A09-0374-08)To reset the registered contentsThe register
7、ed contents for title, music type, user file and bestselection can be reset by the following procedure.Operation to resetThe microcomputer may malfunction (impossibility to operate,erroneous display, etc.) when the connection cords are un-plugged while power is ON or due to an external factor. In th
8、iscase, execute the following method to reset the microcomputerand return it to normal condition.Unplug the power cord from the power socket and plug thepower cord into the socket again.Unplug the power cord from the power socket, and whileholding the 7 key depressed, plug the power cord into thesoc
9、ket again.CD-4900M/DPF-J90302CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS. 2CIRCUIT DESCRIPTION.3ADJUSTMENT.8PC BOARD . 9SCHEMATIC DIAGRAM . 13EXPLODED VIEW .24PARTS LIST.26SPECIFICATIONS .Back coverContentsAccessoriesCautionsRadioFans.CN 收音机爱 好者资料库CD-4900M/DPF-J90303CIRCUIT DE
10、SCRIPTIONX32,IC2X32,IC8CD MECHACXD2587QCLOCK35 CLOKS1 SW 7S1 SWCDM-31(DSP)XLAT36 XLATS2 SW 4S2 SWDATA44 DATAS3 SW 3S3 SWSCLK33 SCLKD SENS1 23DISC SW1SENS34 SENSD SENS2 60DISC SW2SYSM45 MUTG+5V PUL 10D PWMSCOR46 SCORR CW 24ROTARY+SQCO73 SQSIR CCW 25ROTARY-SQCK75 SCK/SQCKLOAD SW 28LOAD SW1UNLOAD SW 29
11、UNLOAD SW1X32,IC1467 SCK SWLOAD M+26LOADM+1uPD780204CLKLOAD M-27LOADM-1(DOT DRIVER)SO72 SITIMER PLAYSI74 SOLOADM+2 63LOADM+2ON/OFFSTB71 STB1LOADM-2 62LOADM-27PLOAD SW2 58UNLOAD SW24P5P6PUNLOAD SW2 59DLE SW2uPD784217GF502ON/LED ALED BSTANDBYX32,IC15uPD780204CLKRESET 43RESET INPUT(DOT DRIVER)SIIC RESE
12、T 47PERIPHERY IC RESETSTB46 STB2JOG 55 JOG 2X32,IC1056 JOG 11421D0D7LASER ON/OFF70 LDC(D7D0)uPD17215GT-737ANALOG MUTE48 SYSMSPINDLE MOTOR ON/OFF31 MONRWRREQ 13RWRREQRTREN 11RTREN8.16BIT54 8,16RWR 12RWRMODEL DISCRIMINATION 53 A/D0X32,IC98491(D0D7)A1 SWA2 SW1,7683,9299(A0A16)(SRAM)P1P2RD 5OEuPD780024R
13、XD069 TXD1WR 6WE(SUB uCOM)TXD068 RXD1CS 7CSASTB 8LETX OUT65 TXD2SDATA 49SERIAL COMMUNICATIONRECEIVER66 RXD2SBUSY 501. Main microprocessor : uPD784217GF502 (X32, IC8)1-1 Microprocessor periphery block diagramCD-4900M/DPF-J90304CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription1A2OAddress bus of SRAM.2N
14、C-No connection.3S3-SWIMechanism address detector switch.4S2-SWIMechanism address detector switch.5RDOSRAM read strobe.6WROSRAM write strobe7S1-SWIMechanism address detector switch.8ASTBONo connection.9VDD-Power supply(+5V).10+5VPULODisc sensor ON/OFF. L:on 11RTRNITX permission data to remote contro
15、l microprocessor.12RWRIReading data of remote control microprocessor.13RWRROTX request data to remote control microprocessor.1421L-D7-D0OData output to remote control microprocessor.22TEST-GND.23DISC-SWIDisc sensor.24ROTARY-CWOMechanism rotary motor(+). H:CCW25ROTRAY-CCWOMechanism rotary motor(-). H
16、:CW26LOADM+1OLoading motor(+) for main pickup.27LOADM-1OLoading motor(-) for main pickup.28LOAD-SW1ILoading switch for main pickup.29UNLOAD-SW1IUnloading switch for main pickup.30CSOChip selector31MONOControl port of poor focus works.32SCLKOSens serial data read clock.33SENSISENS signal input.34CLOC
17、KOSerial data clock.35XLATOCXD2587Q latch. H L:latch36DATAOSerial data output.37VDD-Power supply(+5V).38,39X1,2-Main system clock(12.5MHz).40VSS-GND.41XT2-No connection.42XT1IGND.43RESETISystem reset signal input.44SCORISub code synchro detection.45MUTEGOMuting control output. H:muting on.46STB2OStr
18、obe signal output to dot driver.47ICRESETOIC reset.48SYSMOAnalog muting. L: Muting on.49SDATAI/OSerial data signal I/O.50SBUSYI/OSerial busy signal I/O.51AVDD-Power supply(+5V).52AVREF-A/D reference power supply.53A/D0IModel discrimination.548/16I8/16 bit selector. H:16bit.55JOG2IEncoder signal A in
19、put.1-2 Microprocessor pin description (X32, IC8): UPD784217GF502CD-4900M/DPF-J90305CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription56JOG1IEncoder signal B input.57DOOR-SWIDoor open/close detector switch.58LOAD-SW2ILoad switch2 for sub pickup.59UNLOAD-SW2IUnload switch2 for sub pickup.60DISC-SW2IDis
20、c2 sensor.61VSS-GND.62LOADM-2OLoad motor(-) for sub pickup.63LOADM+2OLoad motor(+) for sub pickup.64AVREF1-D/A reference power supply.65RXD2IUART communication input.66TXD2OUART communication output.67SQCK/SCK-SWOSQCK,SCK(DOT/DSP clock) selector. L:DSP.68RXD1IUART communication input from sub u-com.
21、69TXD1OUART communication output to sub u-com.70LDCOLaser on/off. L: Laser diode on.71STB1OStrobe signal output to dot driver.72SIIData input from dot driver.73SQS1ISub code read data input.74SOOData output to dot driver.75SCK/SQCKODot driver/sub code read clock.76-83A16,14,12,7-3OAddress output to
22、SRAM.8491D0-7I/OSRAM data bus.9299A10,A15,A13,A8,OAddress output to SRAM.A9,A11,A0,A1100VSS-GND.VOLTAGEA/D0(33)A/D1(32)A/D2(31)4.1V-OPERATION3.3V-RANDOM2.5V-CONFIRM1.6V-REPEATCONT.P0.8VDOWNDISP.PLAY/PAUSE0VUPPOWERSTOP1-3 Key matrix ( ) : IC14 Pin No.CD-4900M/DPF-J90306CIRCUIT DESCRIPTIONINPUT KEYPRO
23、CEDUREDISPLAYInsert the AC plug toINITIAL CONDITIONMECHA. INITIALthe wall outlet with Disc No.1 moves to the center.INITIAL OK!pressing the SKIP- Clear the memory of the SRAM.DOWN key. Door opens.INITIAL NG Set the switch of TIMER ON PLAY to ON.TIMER NGInsert the AC plug toCIRCUIT ADJUSTMENTTEST ONt
24、he wall outlet with Open the door and load the disc to the Disc No.1.pressing the REPEAT Close the door. The unit changes to test keymode05 after clamping the disc.PLAY/PAUSE Change the mode 05(tracking-on) and 05 XX:XX 03 XX:XX03(tracking-off) alternately by the PLAY key.STOPStop the function.00UPT
25、he pickup travels outwards.MOTOR FORWARDDOWNThe pickup travels inwards.MOTOR REVERSERANDOMShows the result of self-adjustment.07 EF/FB07 XXX:XXX08 TG/FG08 XXX:XXX09 FE/RF09 XXX:XXX10 TE/VC10 XXX:XXXMode changes alternately by the RANDOM key.NG: blinkingREPEATPlayback PGM signal of the Track No.7,13,
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