Integra-DPC7_4-cd-sm 维修电路原理图.pdf
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1、DPC-7.4SERVICE MANUALSERVICE MANUALDVD CHANGERBlack modelMODEL DPC-7.4120V AC, 60Hz230-240V AC, 50HzBMDDBMPARef. No. 3765Aug, 2003RC-543DVSAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ON THESCHEMATIC DIAGRAM AND IN THE PARTS LIST ARECRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.REPLA
2、CE THESE COMPONENTS WITH ONKYOPARTS WHOSE PART NUMBERS APPEAR AS SHOWNIN THIS MANUAL.MAKE LEAKAGE-CURRENT OR RESISTANCEMEASUREMENTS TO DETERMINE THAT EXPOSEDPARTS ARE ACCEPTABLY INSULATED FROM THESUPPLY CIRCUIT BEFORE RETURNING THEAPPLIANCE TO THE CUSTOMERRadioFans.CN 收音机爱 好者资料库DPC-7.4Specifications
3、 and features subject to change without notice.Video systemStandard NTSC (U.S. model), PAL/AUTO (Australian model)Region code1 (U.S. model), 4 (Australian model)LaserSemiconductor laser, wavelength 650 nm (DVD), 780 nm (CD)Frequency responseDVD linear audio4 Hz - 22 kHz 48 kHz sampling rate4 Hz - 44
4、 kHz 96 kHz sampling rateCD audio4 Hz - 20 kHzSignal-to-noise ratio (digital audio)100 dBAudio dynamic range (digital audio)93 dBHarmonic distortion (digital audio)0.006%Wow and flutterBelow measurable level (0.001% (W. PEAK) or lessOperating conditionsTemperature5 to 35 C (41 F to 95 F)Installation
5、Install horizontallyVideo outputsCOMPONENT VIDEOY: 1.0 V (p-p), 75 ohm, negative sync, RCA/phono x1, BNC x1PB/PR: 0.7 V (p-p), 75 ohmS VIDEO (S-Video)Y: 1.0 V (p-p), 75 ohm, negative sync, 4-pin mini DIN x2C: 0.286 V (p-p), 75 ohm VIDEO (composite video)1.0 V (p-p), 75 ohm, negative sync, RCA/phono
6、x2Audio outputsOPTICAL-22.5 dBm, optical connector x1COAXIAL0.5 V (p-p), 75 ohm, RCA/phono x1ANALOG2.0 V rms, 440 ohm, RCA/phono x2GeneralPower supply120 V AC, 60 Hz (U.S. model)230-240 V AC, 50 Hz (Australian model)Power consumption13 WPower consumption in Standby mode1.6 W (U.S. model)2.0 W (Austr
7、alian model)Weight6.4 kg (14.1 lbs.)Dimensions (W x H x D)435 x 131 x 436 mm (17-1/8 x 5-3/16 x 17-3/16)SPECIFICATIONRadioFans.CN 收音机爱 好者资料库DPC-7.4SERVICE PROCEDURES-1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGThis set employs a laser. Therefore, be sure to follow carefully the instructions
8、 below when servicing.WARNING!SERVICE WARNING : DO NOT APPROACH THELASER EXIT WITH THE EYE TOO CLOSELY.IN CASE IT IS NECESSARY TO CONFIRM LASERBEAM EMISSION, BE SURE TO OBSERVE FROMA DISTANCE OF MORE THAN 30cm FROM THESURFACE OF THE OBJECTIVE LENS ON THEOPTICAL PICKUP BLOCK.Laser Diode PropertiesLAS
9、ER WARNINGWavelength: 650/780nm (DVD/CD)WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
10、.The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.The exclamation point within
11、an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.WARNINGRISK OF ELECTRIC SHOCKDO NOT OPENRISQUE DE CHOC ELECTRIQUENE PAS OUVRIRAVISWARNINGThis unit contains a semiconduct
12、or laser system and is classifiedas a CLASS 1 LASER PRODUCT. So, to use this modelproperly, read this Instruction Manual carefully. In case of anytrouble, please contact the store where you purchased the unit.To prevent being exposed to the laser beam, do not try to openthe enclosure.VISIBLE LASER R
13、ADIATION WHEN OPEN AND INTERLOCKFAILED OR DEFEATED. DO NOT STARE INTO BEAM.THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS ORADJUSTMENTS OR PERFORMANCE OF PROCEDURESOTHER THAN THOSE SPECIFIED HEREIN MAY RESULT INHAZARDOUS RADIATION EXPOSURE.The label on the rightis applied on the rearpanel except for
14、 USAand Canadianmodels.1. This unit is a CLASS 1 LASER PRODUCT and employs alaser inside the cabinet.2. To prevent the laser from being exposed, do not removethe cover. Refer servicing to qualified personnel.CLASS 1 LASER PRODUCTCAUTION:CAUTION:SERVICE PROCEDURE1. Replacing the fusesREF. NO.PART NO.
15、DESCRIPTION This symbol located near the fuse indicates that thefuse used is show operating type, For continued protection againstfire hazard, replace with same type fuse , For fuse rating, refer to the marking adjest to the symbol. Ce symbole indique que le fusible utilise est e lent. Pour une prot
16、ection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre.F001252185 or1.6A-UL/T-2372522521.6A-T/UL-ST2 LASER BEAM CAUTION LABEL252075 or2522752.5A-SE-EAK2.5A-SE-TL250VNorth American areaAustralian areaFDPC-7.4SERVICE PROCEDURES-2Factory-sh
17、ipped conditionInsert the power cord the AC inlet on the rear panelPush button ON (Mechanical SW)Press the STOP and STANDBY same time with NO DISC condition. Push button STANDBY.Pull out the power cord.Push the power switch. (Mechanical switch)INITIALIZING2. Safety-check out(Only U.S.A. model)After
18、correcting the original service problem perform thefollowing safety check before releasing the set to the customerConnect the insulating-resistance tester between the plug ofpower supply cord and terminal GND on the back panel.Specifications: More than 10M ohm at 500VREMOVE THE SOLDER OF LASER DIODE
19、 SHORTWhen replace the mechanism or DVD main PC board.Shorting the solder of Short-circuit land. (2 positions)DPC-7.4EXPLODED VIEW325641A6A30A31A32A33A6A6A6A43A6A41A41A42A42A42A42A50A53A54A54A56A214A54A54A54A54A54A54E101F001U1U2E821A6A34M01M02M06M04M07M08M09M10M11M11M11M12M13M14M14M15M15P1101M11M11M
20、11P1001M17M18M19M50M32M35M36U8A6U9U12P707U3P2501P2901P2401P2001A54Cloth tape(160)Cloth tape(80)M11A6M51A32M52M51badA6M25A1A3A6A6A6A6A6A52A54A54A55A218A220A6A6A221A226A54A54A54A6A6A6A6A6A6A6A6A6A6A6A6U4U5U6U10U11U13U14U15U30Cloth tapeA6M23M30M31(Bracket + Shaft)A43A43A43cbadefA231A232ggehhceA233A6A6A
21、6A6A41A42A42A43A43A43M38M38M38M39Cloth tape(80)P702DPC-7.4A2A4A5A223ADPC-7.4BLOCK DIAGRAMP 9 0 1OPT_OUTCOAXAL_OUTCVSPRCOMPONENTPBYQROULETTE SENSORQ716DISC SENSOERZZX8015MHZX 7 0 14 . 5 M H ZMD,MC,CSDACD,DACRSTP2001ADIG OUTLASER etcSPD+,SPD-,SLD+,SLD,LMT-SWP1001P1101DVD MECHAEV5V,SW5V,SW3.3V,A+12V,A-
22、12VCR/R,CB/B,CY/GSY,SC,LETTERSQEZ,P/IX,AR2/AR1XP 2 4 0 1 ARGBONEV5VDSPSI,DSPSODSPCK,DSTBXSW8VSW5VSW3.3VP2501P 7 1 0 AP2901DISPLAY PC BOARD NADIS-7808MECHANISM CONTROL PC BOARD NADG-7809P704AREMOTE CONTROL SENSORFL TUBE HNV-12SM34RPM7138Q808MPD780232GC-070-8BTQ801MPD780053GC-141-8BTP403AP701BVIDEO SI
23、GNAL OUT PC BOARD NAVD-7810DIGTAL OUT DRIVETC74VHCU04TQ411VIDEO AMPLA73054Q201EV5V,SW5V,SW3.3V,A+12V,A-12VEV5V,-30V,F1,F2EV5V,SW5VRESET ICS-80130Q702SENSERPOSITIONQ717,Q711,Q708DISC SENSERQ706,Q710,Q709Q705,Q707Q704,Q706DRIVELOADING MOTORDRIVEROULETTE MOTORSUBRST,SUBCL,SUBREQ,SUBSI,SUBSOQ701Q110:DTC
24、114YKAQ109:DTA114YKAQ407,Q408:HN1C03FMUTINGQ407,Q408Q109,Q110Q403-Q406:NJM4580M-DAUDIO SIGNAL OUT PC BOARD NAAF-7811AUDIO OUTRchLchVLSCQ404(2/2)Q406Q405FILTER CCTQ404(1/2)Q403(1/2)AUDIO DACPCM1742KEQ401Q403(2/2)NGPS-0037( AUS)NGPS-0036 (US)DVD MAIN CIRCUIT PC BOARDNADG-7807P702BRI,RESET,AMUTEF2F1-30
25、VA-12VA+12VSW8VSW3.3VSW5VEV5VPOWER SUPPLY UNITLEDKEY INPUTVIDEO OFF,RXD1,TXD1DACCLK,LRCLK,BCLK,DATAD,DOUT0-1COMPONENT VIDEO OUTNAETC-DPC-7.4SCHEMATIC DIAGRAM-2U1 : DVD MAIN CIRCUIT PC BOARD-2 (B/E SECTION) NADG-7807A12345BCDEFGHD2901D_LEDP2701Q2904MPC29M33TGIOQ2903MPC2918TGIOQ2901MPC29M33TGIOQ2902MP
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