Onkyo-DVC503-cd-sm维修电路原理图.pdf
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1、RC-469DV DV-C503 SERVICE MANUALSERVICE MANUAL DVD Changer Black model MODEL DV-C503 120V AC, 60HzBUDD Ref. No. 3704 102001 SAFETY-RELATED COMPONENT WARNING! THE MARK FOUND ON SOME COMPONENT PARTS INDICATES THE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. WHEN REPLACING, BE SURE TO USE PARTS OF IDEN
2、TICAL DESIGNATION. MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 Specifications and features are subject to change without notice. DVD Changer Po
3、wer supplyAC 120 V, 60 Hz Power consumption20 W Weight15.0 lbs External dimensions17 1/8 x 5 1/16 x 16 15/16 (W/H/D) Signal systemNTSC Frequency range (digital audio)48 kHz sampling 4 Hz to 22 kHz 96 kHz sampling 4 Hz to 42 kHz Signal-to-noise ratio (digital audio)More than 98 dB Audio dynamic range
4、 (digital audio)More than 95 dB Harmonic distortion (digital audio)Less than 0.005 % Wow and flutterBelow measurable level Operating conditionsTemperature: 5 C to 35 C (41 F to 95 F), Operation status: Horizontal Outputs Video output1.0 V (p-p), 75 ohm , negative sync., pin jack 1 S-video output(Y)
5、1.0 V (p-p), 75 ohm , negative sync. (C) 0.286 V (p-p), 75 ohm , Mini DIN 4-pin 1 Component video output(Y) 1.0 V (p-p), 75 ohm , negative sync., pin jack 1 (PB)/(PR) 0.7 V (p-p), 75 ohm , pin jack 2 Audio output (digital output Optical)Optical connecter 1 Audio output (digital output Coaxial)0.5 V
6、(p-p), 75 ohm , pin jack 1 Audio output (analog output)2.0 V (rms), 320 ohm , pin jack (L, R) 2 Supplied Accessories Audio/video connection cable1 Remote controller (RC-469DV)1 Batteries (size AAA/R3)2 DV-C503 SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 DV-C503 SERVICE NOTE 1. Replacing the fuses2. Safet
7、y-check out (Only U.S.A. model) After correcting the original service problem perform the following safety check before releasing the set to the customer Connect the insulating-resistance tester between the plug of power supply cord and terminal GND on the back panel. Specifications: More than 10M o
8、hm at 500V REF.NO.PART NO.DESCRIPTION F1 2521592A-UL/T-237 This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse , For fuse rating, refer to the marking adjust to the symbol. Ce symbole indique
9、 que le fusible utilise est e lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT
10、INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. POUR EVITER LES CHOCS ELECTRIQUE, INTRODUIRE LA LAME LA PLUS LARGE DA LA FICHE DANS LA BORNE CORRESPONDANTE DA LA PRISE ET POUSS
11、ER JUSQU AU FOND. WARNING : CAUTION : ATTENTION : 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 electr
12、ic shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instruction in the literature accompanying the appliance. 1. Ground for the work-desk. Place a conductive sheet such as a sheet o
13、f copper (with impedance lower than 10Mohm) on the work-desk and place the set on the conductive sheet so that the chassis. 2. Grounding for the test equipments and tools. Test equipments and toolings should be grounded in order that their ground level is the same the ground of the power source. 3.
14、Grounding for the human body. Be sure to put on a wrist-strap for grounding whose other end is grounded. Be particularly careful when the workers wear synthetic fiber clothes, or air is dry. 4. Select a soldering iron that permits no leakage and have the tip of the iron well-grounded. 5. Do not chec
15、k the laser diode terminals with the probe of a circuit tester or oscilloscope. PRECAUTIONS LASER CAUTION Initialization of setup 1. Press the DISC 4 and CDPLAY key to the same timing. The DISC 4 key is pushed previously. Then, light off the FL tube. 2. Push the power switch. S5 H1 H13 H4 H3 H2 S2 H
16、43 42 S2 H5 S4 S5 H7 H8 H10 11 H12 H21 H47 H47 U2 H15 H14 S2 H20 S2 H22 H49 H48 H47 H22 H23 S2 U3 S2 H44 S2 S2 S6 S3 S6 H45 S2 S1 S2 H47 H41 S2 H46 H27 H24 U1 H26 H27 S2 H38 S2 H37 H35 S3 H34 S2 H6 F1 CN01 S3 S3 S6 S4 S4 S2 S2 S2 S2 S2 S2 S2 H26 H26 S2 S1 S1 S2 S2 S6 S2 S2 S2 CC201 CC202 H52 FL tube
17、 H47 H47 H42 S2 H42 S1 S2 U2 U2 H53 DV-C503 DV-C503 EXPLODE VIEW CHASSIS DV-C503 PARTS LIST CHASSIS REF. NO.PART NO.DESCRIPTION H155221110Plate, DVD H2 55184480 Drawer panel H355221120Clear plate H455186750Badge Logo H555186710Facet H655244650Button, STANDBY H755244620Knob, POWER H855184600Shaft, po
18、wer H1055244670Button, PLAY H1255164930FL holder H1355184330Front panel H1455244660Button, OPEN/CLOSE H1555244680Button, Keys (9-keys) H2055236110Front chassis H2155201610Sponge, front bracket H2255125120Foot (4) H2355196510Sponge, chassis H2455174580Bracket ground H2655186640Bracket main PC board H
19、2755178960Spring H3455011170Power cord, 1830mm H3555125180Cord bushing H3755186610Rear panel H3855174610Bracket R small H4155186600Top cover H4255141370Rubber (4) H4255127310Washer foot H4355184690Power supply board unit H4455221140Shield cover H4555186670Bracket L, Frame H4655186680Bracket R, Frame
20、 H4755174550Cushion, 12 x 8 x 20 H4855186620Main chassis H4955190690Rubber sheet H5255170390Wire tie H5355190770Sheet S18381300683TTB+6B, Self tapping screw S28381300883TTB+8B, Self tapping screw S38381301083TTB+10B(BC), Self tapping screw S48311300883TTW+8B, Self tapping screw S68384400884TTB+8B(BC
21、), Self tapping screw U155183100Main circuit PC board U255183110Display PC board, Open/Close SW PC board, Standby LED PC board U3 55183120 Output terminal PC board F1 NOTE: THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. RE
22、F. NO.PART NO.DESCRIPTION 2521592A-UL/T-237, Fuse 20710180 GEAR M18 20710180 GEAR pp-6.max M1820710180GEARM18 20710180 GEAR pp-7.max AC120V, 60Hz Power supply circuit DVD Mechanism Roulette Mechanism AC CORD +12V ANALOG Vcc +8V ANALOG Vcc -8V ANALOG Vcc +5V DIGITAL Vcc +3.3V DIGITAL Vcc +8V MOTOR Vc
23、c +12V MOTOR Vcc 5V DISPLAY F-OE(DRAM OE) DATA* RDNOTWR D-RASO- ADDR* D-CAS1- D-CAS1 ADDR* F-WE F-RESET F-DE DATA* F-OE(DRAM OE) F-CE IC401 FLASH MEMORY 8MBIT M29F400T-90N1 IC301 SDRAM-64MBIT HY57V651610BTLC-8 125MHz IR REMOCON +5V6S VFD STD VFD DATA IN VFD DATA OUT VFD CLK POWER CTL PCM1748E-CS PCM
24、1748E-CLK PCM1748E-DATA PCMCLK BCK LRCLK AUDIO-MUTE CVBS-OUT Y-OUT C-OUT R(Cr)-OUT B(Cb)-OUT G(Y)-OUT SPDIF PCM1748E DAC IC802-A-A BA4560 L AUDIO R AUDIO L. P. F L. P. F MUTE TR BUFFER & B.N.F. TR BUFFER & B.N.F. TR BUFFER & B.N.F. TR BUFFER & B.N.F. TR BUFFER & B.N.F. TR BUFFER & B.N.F. BUFFER VIDE
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