Sony dvpns 775 v service manual
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– 2 – DVP-NS775V/NS780V SAFETY CHECK-OUT 1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges. 2. Check the interboard wiring to ensure that no wires are pinched or contact high-wattage resistors. 3. Look for unauthorized replacement parts, particularly transis- tors, that were installed during a previous repair. Point them out to the customer and recommend their replacement. 4. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement. 5. Check the line cord for cracks and abrasion. Recommend the replacement of any such line cord to the cus- tomer. 6. Check the B+ voltage to see it is at the values specified. 7. Check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. WARNING!! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION, BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 25 cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. CAUTION: The use of optical instrument with this product will increase eye hazard. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK OR DOTTED LINE WITH MARK 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. After correcting the original service problem, perform the following safety checks before releasing the set to the customer: 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 0.5mA (500 microampers). 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 volmeter. The limit indication is 0.75V, 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) 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 highter 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 viscous (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. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY. To Exposed Metal Parts on Set 0.15 F 1.5k AC Voltmeter (0.75 V) Earth Ground Fig.A. Using an Acvoltmeter to check AC leakage.
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– 3 – DVP-NS775V/NS780V TABLE OF CONTENTS SERVICE NOTE1. Disc Removal Procedure (at POWER OFF).............. 5 2. PWB caution for B3834................................................. 5 1. GENERAL Precautions.................................................................... 1-1 About this Manual.......................................................... 1-1 This Player Can Play the Following Discs................... 1-1 Notes about the Discs.................................................. 1-1 Index to Parts and Controls ......................................... 1-2 Guide to the Control Menu Display.............................. 1-3 Hookups................................................................................ 1-3 Hooking Up the Player.................................................. 1-3 Step 1: Unpacking......................................................... 1-3 Step 2: Inserting Batteries into the Remote................. 1-3 Step 3: Connecting the Video Cords............................ 1-4 Step 4: Connecting the Audio Cords............................ 1-5 Step 5: Connecting the Power Cord............................. 1-6 Step 6: Quick Setup...................................................... 1-6 Playing Discs......................................................................... 1-7 Playing Discs................................................................. 1-7 Resuming Playback from the Point Where You Stopped the Disc (Multi-disc Resume).................. 1-8 Using the DVD's Menu.................................................. 1-8 Selecting ORIGINAL or PLAY LIST on a DVD-RW................................................................... 1-8 Selecting a Playback Area for a Super Audio CD....... 1-8 Playing VIDEO CDs With PBC Functions (PBC Playback)........................................................ 1-9 Various Play Mode Functions (Program Play, Shuffle Play, Repeat Play, A-B Repeat Play........... 1-9 Searching for a Scene..........................................................1-10 Searching for a Particular Point on a Disc (Search, Scan, Slow-motion Play, Freeze Frame)...............1-10 Searching for a Title/Chapter/Track/Scene, etc. (Search mode).........................................................1-10 Searching by Scene (PICTURE NAVIGATION).........1-11 Viewing Information About the Disc.....................................1-11 Checking the Playing Time and Remaining Time........1-11 Sound Adjustments...............................................................1-12 Changing the Sound......................................................1-12 Surround Mode Settings...............................................1-12 Enjoying Movies....................................................................1-13 Changing the Angles.....................................................1-13 Displaying the Subtitles.................................................1-13 Adjusting the Playback Picture (CUSTOM PICTURE MODE) .................................1-13 Sharpening the Pictures (SHARPNESS) .....................1-14 Enjoying MP3 Audio and JPEG Images..............................1-14 About MP3 Audio Tracks and JPEG Image Files.......1-14 Playing DATA CDs with MP3 Audio Tracks and JPEG Image Files....................................................1-14 Enjoying JPEG Images as a Slide Show .....................1-15 Using Various Additional Functions......................................1-16 Locking Discs (CUSTOM PARENTAL CONTROL, PARENTAL CONTROL)..........................................1-16 Controlling Your TV or AV Amplifier (Receiver) With the Supplied Remote.......................................1-17 Settings and Adjustments.....................................................1-18 Using the Setup Display...............................................1-18 Setting the Display or Sound Track Language (LANGUAGE SETUP).............................................1-18 Settings for the Display (SCREEN SETUP)................1-18 Custom Settings (CUSTOM SETUP)..........................1-19 Settings for the Sound (AUDIO SETUP) .....................1-19 Settings for the Speakers (SPEAKER SETUP)..........1-19 Additional Information ............................................................1-20 Troubleshooting.............................................................1-20 Self-diagnosis Function (When letters/ numbers appear in the display................................1-21 Glossary........................................................................1-21 Specifications.................................................................1-22 2. DISASSEMBLY 2-1. Upper Case................................................................... 2-1 2-2.Front Panel Assembly................................................... 2-1 2-3. Loading Assembly......................................................... 2-2 2-4. Optical Device (KHM-310BAA).................................... 2-3 2-5. DC Motor and PL-035 Board........................................ 2-4 2-6. AV-086 and IF-115 Boards........................................... 2-4 2-7.MB-117 Board................................................................ 2-5 2-8.Switching Regulator...................................................... 2-5 2-9.Interval Views ................................................................. 2-6 2-10. Circuit Boards Location................................................. 2-7 3. BLOCK DIAGRAMS 3-1.Overall Block Diagram.................................................. 3-1 3-2.System Control/Signal Processor Block Diagram...... 3-3 3-3.RF/Servo Block Diagram.............................................. 3-5 3-4.Audio (1) Block Diagram............................................... 3-7 3-5.Audio (2) Block Diagram............................................... 3-9 3-6.Video Block Diagram.....................................................3-11 3-7.Interface Control Block Diagram..................................3-13 3-8. Power (1) Block Diagram..............................................3-15 3-9. Power (2) Block Diagram..............................................3-17 3-10. Power (3) Block Diagram..............................................3-19 4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1.Frame Schematic Diagram........................................... 4-1 4-2.Printed Wiring Boards and Schematic Diagrams........ 4-3 Waveform...................................................................... 4-4 MB-117 Printed Wiring Board.................................. 4-5 MB-117 (System) Schematic Diagram.................. 4-7 MB-117 (RF-Servo) Schematic Diagram............... 4-9 MB-117 (8ch DAC) Schematic Diagram................4-11 MB-117 (Ps-Trough) Schematic Diagram..............4-13 AV-086 Printed Wiring Board...................................4-15 AV-086 (Video) Schematic Diagram........................4-17 AV-086 (Audio 1/2) Schematic Diagram.................4-19 AV-086 (Audio 2/2) Schematic Diagram.................4-21 IF-115 Printed Wiring Board....................................4-23 IF-115 (Interface) Schematic Diagram..................4-25 PL-035 Printed Wiring Board...................................4-27 PL-035 (Power Switch) Schematic Diagram..........4-29 Power Block (SRV1577UC) Printed Wiring Board...........................................4-31 Power Block (SRV1577UC) Schematic Diagram............................................4-33 Power Block (SRV1578WW) Printed Wiring Board...........................................4-35 Power Block (SRV1578WW) Schematic Diagram............................................4-37