Sony dvpcx 995 v service manual
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Extracted text from sony dvpcx 995 v service manual (Ocr-read)
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2 DVP-CX995V Notes on chip component replacement -Never reuse a disconnected chip component. -Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing -Keep the temperature of the soldering iron around 270 C 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 radiation 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. 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. 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 2 V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 1.5 k Ω 0.15 µF AC voltmete r (0.75 V) To Exposed Metal Parts on Set Earth Ground ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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3 DVP-CX995V TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 4 2. GENERAL ................................................................... 9 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 10 3-2. Case ................................................................................. 11 3-3. MB Board ........................................................................ 11 3-4. AV Board ......................................................................... 12 3-5. Bracket (L)/(R) ................................................................ 12 3-6. Front Panel Section ......................................................... 13 3-7. Cover (PT)/(CDM) .......................................................... 13 3-8. DVBU65 Assy ................................................................. 14 3-9. Switching Regulator ........................................................ 14 3-10. Table (400) Assy .............................................................. 15 3-11. Door Assy, Base (Door) Assy .......................................... 15 3-12. DC Motor (Door) (M603) ............................................... 16 3-13. Holder (Table Sensor 400) ............................................... 16 3-14. D. SENS OUT Board, D. SENS IN Board ...................... 17 3-15. Pop-up (400) Assy ........................................................... 17 3-16. DOOR SW Board ............................................................ 18 3-17. LOCK SW Board, LOADING SW Board ...................... 19 3-18. CD/DVD Mechanism Deck Block (CDM62-DVBU65) ......................................................... 20 3-19. Motor (400) Assy (Loading) (M602)/(Table) (M601), LOADING MOTOR Board ............................................. 20 3-20. Optical Traverse Unit (DBU-3) ....................................... 21 4. TEST MODE .............................................................. 22 5. MECHANICAL ADJUSTMENTS ....................... 32 6. ELECTRICAL ADJUSTMENTS ......................... 33 7. DIAGRAMS 7-1. Block Diagram – SERVO Section – ................................ 38 7-2. Block Diagram – AUDIO Section – ................................ 39 7-3. Block Diagram – VIDEO Section – ................................ 40 7-4. Block Diagram – PANEL, TABLE, POWER SUPPLY Section – ............ 41 7-5. Printed Wiring Board – RF TRANSLATION Board – ... 43 7-6. Printed Wiring Board – MB Board (Side A) – ................ 44 7-7. Printed Wiring Board – MB Board (Side B) – ................ 45 7-8. Schematic Diagram – MB Section (1/7) – ...................... 46 7-9. Schematic Diagram – MB Section (2/7) – ...................... 47 7-10. Schematic Diagram – MB Section (3/7) – ...................... 48 7-11. Schematic Diagram – MB Section (4/7) – ...................... 49 7-12. Schematic Diagram – MB Section (5/7) – ...................... 50 7-13. Schematic Diagram – MB Section (6/7) – ...................... 51 7-14. Schematic Diagram – MB Section (7/7) – ...................... 52 7-15. Schematic Diagram – AV Board (1/5) – .......................... 53 7-16. Schematic Diagram – AV Board (2/5) – .......................... 54 7-17. Schematic Diagram – AV Board (3/5) – .......................... 55 7-18. Schematic Diagram – AV Board (4/5) – .......................... 56 7-19. Schematic Diagram – AV Board (5/5) – .......................... 57 7-20. Printed Wiring Board – AV Board (Component Side) – ..................................... 58 7-21. Printed Wiring Board – AV Board (Conductor Side) – ....................................... 59 7-22. Printed Wiring Boards – TABLE Section – ..................... 60 7-23. Schematic Diagram – TABLE Section – ......................... 61 7-24. Printed Wiring Board – DRIVER Board – ...................... 62 7-25. Schematic Diagram – DRIVER Board – ......................... 63 7-26. Printed Wiring Board – PANEL-L Board – ..................... 64 7-27. Schematic Diagram – PANEL-L Board – ....................... 657-28. Printed Wiring Boards – PANEL-R Section – ................. 66 7-29. Schematic Diagram – PANEL-R Section – ..................... 67 8. EXPLODED VIEWS 8-1. Overall Section ................................................................ 90 8-2. Front Panel Section ......................................................... 91 8-3. Power Block Section ....................................................... 92 8-4. Table Section ................................................................... 93 8-5. Chassis Section ................................................................ 94 8-6. Base (Door) Section ........................................................ 95 8-7. CD/DVD Mechanism Deck Section-1 (Pop-up Block) ................................................................ 96 8-8. CD/DVD Mechanism Deck Section-2 (Pulley Block) .................................................................. 97 8-9. CD/DVD Mechanism Deck Section-3 (Lever, Holder Block) ...................................................... 98 8-10. CD/DVD Mechanism Deck Section-4 (Gear, Motor Block) ........................................................ 99 8-11. Base Unit Section (DVBU65) ........................................ 100 9. ELECTRICAL PARTS LIST ............................... 101