Sony dvpns 315 service manual

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- 2 - SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer. 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 transistors, 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 customer. 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.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 TW-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 0.75V, 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 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 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. 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.ATTENTION AU COMPOSANT AYANT RAPPORT Ã- LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 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 µF 1.5 k-„¦AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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.

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- 3 - TABLE OF CONTENTS SERVICE NOTE 1. DISC REMOVAL PROCEDURE (at POWER OFF)········5 2. HOW TO SERVICE MB-103 BOARD······························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 On-Screen Displays (Control Bar)························· 1-3 Simple Start Guide····································································1-3 Quick Overview·····································································1-3 Step 1: Unpacking·································································1-3 Step 2: Inserting Batteries into the Remote···························1-3 Step 3: TV Hookups······························································1-4 Step 4: Playing a Disc····························································1-4 Hookups···················································································· 1-4 Hooking Up the Player··························································1-4 Step 1: Connecting the Video Cords····································· 1-4 Step 2: Connecting the Audio Cords···································· 1-5 Step 3: Connecting the Power Cord·······································1-6 Step 4: Quick Setup·······························································1-6 Playing Discs·············································································1-6 Playing Discs·········································································1-6 Searching for a Particular Point on a Disc (Scan, Slow-motion Play, Search, Freeze Frame)···············································1-7 Resuming Playback from the Point Where You Stopped the Disc (Resume Play/Multi-disc Resume).····························1-7 Using the DVDs Menu························································ 1-8 Playing VIDEO CDs with PBC Functions (PBC Playback) · 1-8 Playing an MP3 Audio Track················································ 1-8 Various Play Mode Functions (Program Play, Shuffle Play, Repeat Play, A-B Repeat Play)···········································1-8 Searching for a Scene····························································· 1-10 Searching for a Title/Chapter/Track/Index/Scene (Search mode)·································································· 1-10 Viewing Information About the Disc·······································1-10 Checking the Playing Time and Remaining Time·············· 1-10 Sound Adjustments································································· 1-10 Changing the Sound·····························································1-10 TV Virtual Surround Settings (TVS)·································· 1-11 Enjoying Movies·····································································1-11 Changing the Angles··························································· 1-11 Displaying the Subtitles·······················································1-11 Adjusting the Picture Quality (BNR)································· 1-12 Adjusting the Playback Picture (CUSTOM PICTURE MODE) · 1-12 Enhancing the Playback Picture (DIGITAL VIDEO ENHANCER) (DVP-NS415 only)···································1-12 Using Various Additional Functions········································1-12 Locking Discs (CUSTOM PARENTAL CONTROL, PARENTAL CONTROL)·················································1-12 Controlling Your TV with the Supplied Remote·················1-13 Settings and Adjustments······················································· 1-14 Using the Setup Display.····················································· 1-14 Setting the Display or Sound Track Language (LANGUAGE SETUP)····················································1-14 Settings for the Display (SCREEN SETUP)······················ 1-14 Custom Settings (CUSTOM SETUP)································ 1-15 Settings for the Sound (AUDIO SETUP)····························1-15 Additional Information····························································1-15 Troubleshooting·································································· 1-15 Self-diagnosis Function (When letters/numbers appear in the display)···································································1-16 Glossary·············································································· 1-16 Language Code List·····························································1-16 2. DISASSEMBLY 2-1. UPPER CASE·································································2-1 2-2. FRONT PANEL ASSEMBLY and FR SUPPORT··········2-1 2-3. LOADING ASSEMBLY·················································2-2 2-4. OPTICAL DEVICE (KHM-270AAA)···························2-2 2-5. DC MOTOR and MS-81 BOARD··································2-3 2-6. ER-14R BOARD·····························································2-3 2-7. AV-61 BOARD································································2-4 2-8. MB-103 BOARD·····························································2-4 2-9. IF-89 BOARD·································································2-5 2-10. SWITCHING REGULATOR··········································2-5 2-11. INTERNAL VIEWS························································2-6 2-12. CIRCUIT BOARDS LOCATION···································2-7 3. BLOCK DIAGRAMS 3-1. OVERALL BLOCK DIAGRAM····································3-1 3-2. RF/SERVO BLOCK DIAGRAM····································3-3 3-3. SIGNAL PROCESSOR BLOCK DIAGRAM················3-5 3-4. SYSTEM CONTROL BLOCK DIAGRAM···················3-7 3-5. VIDEO BLOCK DIAGRAM··········································3-9 3-6. AUDIO BLOCK DIAGRAM········································3-11 3-7. INTERFACE CONTROL BLOCK DIAGRAM···········3-13 3-8. POWER BLOCK DIAGRAM (1/2)······························3-15 3-9. POWER BLOCK DIAGRAM (2/2)······························3-17 4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1. FRAME SCHEMATIC DIAGRAM································4-1 4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAM······································································4-4 WAVEFORMS································································4-5 - IF-89 (IF COM) PRINTED WIRING BOARD·························4-7 - IF-89 (IF COM) SCHEMATIC DIAGRAM······························4-9 - MB-103 (DVD/CD RF AMP, DIGITAL SERVO, MOTOR DRIVE, SERVO, AV DECODER, SDRAM, SYSTEM CONTROL, AUDIO DAC, PLL) PRINTED WIRING BOARD·······················4-11 - MB-103 (DVD/CD RF AMP, DIGITAL SERVO) (1/7) SCHEMATIC DIAGRAM····························4-15 - MB-103 (MOTOR DRIVE) (2/7) SCHEMATIC DIAGRAM····························4-17 - MB-103 (SERVO) (3/7) SCHEMATIC DIAGRAM····························4-19 - MB-103 (AV DECODER) (4/7) SCHEMATIC DIAGRAM····························4-21 - MB-103 (SDRAM) (5/7) SCHEMATIC DIAGRAM····························4-23 - MB-103 (SYSTEM CONTROL) (6/7) SCHEMATIC DIAGRAM····························4-25 - MB-103 (AUDIO DAC, PLL) (7/7) SCHEMATIC DIAGRAM····························4-27 - AV-61 (AUDIO OUT, VIDEO OUT) PRINTED WIRING BOARD·······················4-29 - AV-61 (AUDIO OUT) (1/2) SCHEMATIC DIAGRAM····························4-31 - AV-61 (VIDEO OUT) (2/2) SCHEMATIC DIAGRAM····························4-33 - ER-14 (AV AMP) PRINTED WIRING BOARD·······················4-35 - ER-14 (AV AMP) SCHEMATIC DIAGRAM····························4-37 - HS11S1, HS11S1F (SWITCHING REGULATOR) PRINTED WIRING BOARDS·····················4-39 - HS11S1, HS11S1F (SWITCHING REGULATOR) SCHEMATIC DIAGRAM····························4-41