Sony-AVDC700ES-rec-sm 电路图 维修手册.pdf

1 Model Name Using Similar MechanismNEW Mechanism TypeCDM79-DVBU22 Optical Pick-up NameTDP022W SERVICE MANUALUS Model Canadian Model AVD-C700ES SUPER AUDIO CD/DVD RECEIVER SPECIFICATIONS AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 20 20,000 Hz; rated 120 watts per channel minimum RMS power, with no more than 0.7 % total harmonic distortion from 250 milliwatts to rated output. Amplifier section Stereo mode120 W + 120 W (8/4 ohms, 20 20,000 Hz, THD 0.7 %) Surround modeFront: 120 W + 120 W Center*: 120 W Surround*: 120 W + 120 W Surround back*: 120 W (8/4 ohms, 20 20,000 Hz, THD 0.7 %) * Depending on the sound field settings and the source, there may be no sound output. Inputs (Analog)ANALOG IN: Sensitivity: 150 mV Impedance: 50 kilohms Inputs (Digital)DIGITAL IN OPTICAL: DIGITAL IN COAXIAL: Impedance: 75 ohms Outputs (Analog)PHONES: Accepts low- and high-impedance headphones Outputs (Digital)DIGITAL OUT OPTICAL Continued on next page Ver 1.1 2004. 09 Sony Corporation Audio Group Published by Sony Engineering Corporation 9-961-309-02 2004I04-1 2004. 09 RadioFans.CN 收音机爱 好者资料库 2 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Fig. A. Using an AC voltmeter to check AC leakage. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. Super Audio CD/DVD system LaserSemiconductor laser (Super Audio CD/DVD: = 650 nm) (CD: = 780 nm) Emission duration: continuous Signal format systemNTSC FM tuner section SystemPLL quartz-locked digital synthesizer system Tuning range87.5 108.0 MHz (100 kHz step) AntennaFM wire antenna Antenna terminals75 ohms, unbalanced Intermediate frequency10.7 MHz AM tuner section SystemPLL quartz-locked digital synthesizer system Tuning range530 1,710 kHz (with the interval set at 10 kHz) 531 1,710 kHz (with the interval set at 9 kHz) AntennaLoop antenna Intermediate frequency450 kHz Video section InputsVideo: 1 Vp-p 75 ohms S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms OutputsVideo: 1 Vp-p 75 ohms S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms Component: Y: 1 Vp-p 75 ohms PB/CB: 0.65 Vp-p PR/CR: 0.65 Vp-p General Power requirements120 V AC, 60 Hz Power consumption180 W 1 W (at the Power Saving Mode) Dimensions (approx.)430 136 448 mm (17 5 3/8 17 3/4 inches) (w/h/d) incl. projecting parts Mass (approx.)9.7 kg (21 lb. 7 oz.) Operating temperature5 C to 35 C (41 F to 95 F) Operating humidity5 % to 90 % Supplied accessoriesAM loop antenna (1) FM wire antenna (1) S Video cord (1) Remote Commander (remote) RM-CL700M (1) R6 (size AA) batteries (2) Operating instructions (1) Design and specifications are subject to change without notice. AVD-C700ES 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground RadioFans.CN 收音机爱 好者资料库 3 AVD-C700ES Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Unleaded solder Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. DISC TRAY LOCK The disc tray lock function for the antitheft of an demonstration disc in the store is equipped. Releasing Procedure: 1. Press two buttons of FUNCTION and PREV simultaneously. 2. The message “UNLOCKED” is displayed and the tray is unlocked. Note:When “LOCKED” is displayed, the tray lock is not released by turning power on/off with the POWER button. . Ver 1.1 LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the “S curve check” in “DVD section adjustment” and check that the S curve waveforms is output three times. NOTE OF REPLACING THE MB BOARD When replacing the MB board, since the adjustment value is not set up correctly, “Drive Auto Adjustment” cant be performed. In this case, initialize Memory in the following procedures. Procedure: 1. Set the test mode. (See page 20) 2. Press the 2 key of the remote commander, and set the “DRIVE MANUAL OPERATION”. (See page 23) 3. Press the 6 key of the remote commander, and set the “2-6, Memory Check”. (See page 25) 4. Press the CLEAR key of the remote commander, and initialize Memory. RadioFans.CN 收音机爱 好者资料库 4 TABLE OF CONTENTS 1. SERVICING NOTES. 5 2. GENERAL Location of Controls. 8 3. DISASSEMBLY. 11 3-1. Case . 12 3-2. Front Panel Assy . 12 3-3. Video I/O Board . 13 3-4. Amp Board . 13 3-5. DC Fan (FAN901), MB Board . 14 3-6. Sub Chassis Section . 14 3-7. Back Panel Section. 15 3-8. CD Mechanism Deck . 15 3-9. Table Assy . 16 3-10. SE-130 Board . 17 3-11. DC Motor (M901) . 18 3-12. Pick-up Unit Section . 18 3-13. RF Board . 19 4. TEST MODE. 20 5. ELECTRICAL ADJUSTMENTS. 29 6. DIAGRAMS 6-1. IC Pin Function Description . 30 6-2. Circuit Boards Location . 51 6-3. Note for Printed Wiring Boards and Schematic Diagrams. 52 6-4. Waveforms. 53 6-5. Printed Wiring Board RF Section . 54 6-6. Schematic Diagram RF Section . 55 6-7. Printed Wiring Boards Loading Section . 56 6-8. Schematic Diagram Loading Section. 57 6-9. Printed Wiring Board Link Section. 58 6-10. Schematic Diagram Link Section. 59 6-11. Printed Wiring Board MB Section . 60 6-12. Schematic Diagram MB Section (1/12) . 62 6-13. Schematic Diagram MB Section (2/12) . 63 6-14. Schematic Diagram MB Section (3/12) . 64 6-15. Schematic Diagram MB Section (4/12) . 65 6-16. Schematic Diagram MB Section (5/12) . 66 6-17. Schematic Diagram MB Section (6/12) . 67 6-18. Schematic Diagram MB Section (7/12) . 68 6-19. Schematic Diagram MB Section (8/12) . 69 6-20. Schematic Diagram MB Section (9/12) . 70 6-21. Schematic Diagram MB Section (10/12) . 71 6-22. Schematic Diagram MB Section (11/12) . 72 6-23. Schematic Diagram MB Section (12/12) . 73 6-24. Printed Wiring Board Amp Section . 74 6-25. Schematic Diagram Amp Section (1/4) . 76 6-26. Schematic Diagram Amp Section (2/4) . 77 6-27. Schematic Diagram Amp Section (3/4) . 78 6-28. Schematic Diagram Amp Section (4/4) . 79 6-29. Printed Wiring Board Audio I/O Section . 80 6-30. Schematic Diagram Audio I/O Section. 82 6-31. Schematic Diagram Video I/O Section . 83 6-32. Printed Wiring Board Video I/O Section . 84 6-33. Printed Wiring Boards Panel Section . 86 6-34. Schematic Diagram Panel Section . 87 6-35. Printed Wiring Boards Power Section. 88 6-36. Schematic Diagram Power Section . 90 6-37. IC Block Diagrams. 91 7. EXPLODED VIEWS 7-1. Case Section . 104 7-2. Front Panel Section . 105 7-3. Boards Section . 106 7-4. Back Panel Section.107 7-5. CD Mechanism Section (1). 108 7-6. CD Mechanism Section (2). 109 8. ELECTRICAL PARTS LIST.110 AVD-C700ES 5 AVD-C700ES SECTION 1 SERVICING NOTES SERVICING POSITION 1. SERVICING POSITION OF AMP BOARD 2. SERVICING POSITION OF MB BOARD AMP board CN1006 J-2501-103-A J-2501-243-A MB board 6 AVD-C700ES 3. SERVICING POSITION OF POWER BOARD Please perform after discharge electricity of C916 that check of power board. 4. SERVICING POSITION OF FRONT PANEL C916 POWER board J-2501-245-A front panel 7 AVD-C700ES 5. SERVICING POSITION OF CDM LINK board Ver 1.1 6. DECISION TO PASS OR FAIL OF THE OPTICAL PICK-UP BLOCK oscilloscope + MB board CN1013 pin 1 CN1013 pin 3 CD : 1.05 0.2 Vp-p VOLT/DIV : 200 mV TIME/DIV : 500 nS DVD : 1.09 0.2 Vp-p RF signal waveform MB BOARD (SIDE A) CN1013 1 7 Connection: Procedure: 1. Connect an oscilloscope to test point 1 pin and 3 pin of CN1013 on the MB board. 2. Turn the power on. 3. Put the disc (LUV-P01) (Part No.: 4-999-032-01) (CD) in to playback. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. 5. Put the disc (TDV-520CSO) (Part No.: J-2501-236-A) (DVD) in to playback. 6. Perform Comfirmation in the same manner as step 4. Note: A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. Checking Location: 8 AVD-C700ES SECTION 2 GENERALThis section is extracted from instruction manual. LOCATION OF CONTROLS 9 AVD-C700ES 10 AVD-C700ES 11 AVD-C700ES SECTION 3 DISASSEMBLY Note: This set can be disassemble according to the following sequence. 3-1.CASE (Page 12) 3-2.FRONT PANEL ASSY (Page 12) SET 3-6.SUB CHASSIS SECTION (Page 14) 3-3.VIDEO I/O BOARD (Page 13) 3-4.AMP BOARD (Page 13) 3-8.CD MECHANISM DECK (Page 15) 3-9.TABLE ASSY (Page 16) 3-10. SE-130 BOARD (Page 17) 3-5.DC FAN(FAN901, MB BOARD (Page 14) 3-7.BACK PANEL SECTION (Page 15) 3-11. DC MOTOR (M901) (Page 18) 3-12. PICK-UP UNIT SECTION (Page 18) 3-13. RF BOARD (Page 19) 12 AVD-C700ES Note: Follow the disassembly procedure in the numerical order given. 3-1. CASE 3-2. FRONT PANEL ASSY 1two screws (flat head screw) 2two screws (flat head screw) 3three screws (flat head sc