Sony Dvps7700 电路图.pdf

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1、MICROFILM SERVICE MANUALUS Model Canadian Model CD/DVD PLAYER DVP-S7700 RMT-D107A SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 2 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.

2、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

3、 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” indica- tion is 0.75V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suita

4、ble. Nearly all battery operated digital multimeters that have a 2V AC range are suit- able. (See Fig. A) Fig. AUsing AC voltmeter to check AC leakage 1.5 k0.15 F AC Voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO

5、 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. ATTENTION AU COMPOSANT AYANT

6、 RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 1

7、.Check the area of your repair for unsoldered or poorly-sol- dered 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, particular

8、ly 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 recom- mend their replacement. 5.Check the B+ voltage to

9、 see it is at the values specified. 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. SAFETY CHECK-OUT After correcting the original s

10、ervice problem, perform the following safety checks before releasing the set to the customer: 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 SON

11、Y PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. RadioFans.CN 收音机爱 好者资料库 3 TABLE OF CONTENTS SectionTitl

12、ePageSectionTitlePage Service Note . 4 1.GENERAL This Player Can Play the Following Discs . 1-1 Getting Started . 1-1 Basic Operations . 1-2 Playing Discs in Various Modes . 1-4 Setting and Adjustments . 1-8 Additional Information . 1-9 2.DISASSEMBLY 2-1.Upper Case Removal . 2-1 2-2.Front Panel Remo

13、val . 2-1 2-3.Door Open/Close Motor Removal. 2-1 2-4.MB-84 Board Removal . 2-1 2-5.AU-218 Board Removal . 2-2 2-6.MD Block Assy Removal . 2-2 2-7.TK-47 Board Removal. 2-2 2-8.Tray Removal . 2-2 2-9.Skew Motor (M903) Removal . 2-3 2-10. Sled Motor (M501) Removal . 2-3 2-11. Spindle Motor (M901) Remov

14、al . 2-3 2-12. Optical Pick-up Removal. 2-3 2-13. Internal Views . 2-4 2-14. Circuit Boards Location . 2-5 3.BLOCK DIAGRAMS 3-1.Overall Block Diagram . 3-1 3-2.RF/Servo Block Diagram . 3-3 3-3.Signal Process Block Diagram . 3-5 3-4.Video Block Diagram. 3-7 3-5.System Control Block Diagram . 3-9 3-6.

15、Audio Block Diagram. 3-11 3-7.Mode Control Block Diagram . 3-13 3-8.Power Block Diagram. 3-15 4.PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1.Frame Schematic Diagram . 4-3 4-2.Printed Wiring Boards and Schematic Diagrams . 4-7 TK-47 Printed Wiring Board . 4-7 TK-47 (RF, Servo 1) Schematic Diagram

16、 . 4-11 TK-47 (RF, Servo 2) Schematic Diagram . 4-13 MB-84, FG-43 Printed Wiring Boards . 4-15 MB-84 (AV Decoder) Schematic Diagram . 4-19 MB-84 (Clock Generator) Schematic Diagram . 4-21 MB-84 (DNR) Schematic Diagram. 4-23 MB-84 (Video Encoder) Schematic Diagram. 4-25 MB-84 (Drive 1) Schematic Diag

17、ram . 4-27 MB-84 (Drive 2), FG-43 Schematic Diagrams. 4-29 MB-84 (DSP 1) Schematic Diagram . 4-31 MB-84 (DSP 2) Schematic Diagram . 4-33 MB-84 (Bias) Schematic Diagram . 4-35 MB-84 (IF -com) Schematic Diagram . 4-37 MB-84 (L Gate Array) Schematic Diagram . 4-39 MB-84 (ARP, Decrypt) Schematic Diagram

18、 . 4-41 MB-84 (System -com) Schematic Diagram . 4-43 MB-84 (S Gate Array) Schematic Diagram . 4-45 AU-218 Printed Wiring Board . 4-47 AU-218 (Audio 1) Schematic Diagram . 4-51 AU-218 (Audio 2) Schematic Diagram . 4-53 AU-218 (Video Buffer) Schematic Diagram . 4-55 YS-18 Printed Wiring Board and Sche

19、matic Diagram . 4-57 FP-60 , HP-119 Printed Wiring Boards . 4-59 FP-60 , HP-119 Schematic Diagrams. 4-61 CN-112, DR-87, FL-107, FR-159, PW-119 Printed Wiring Boards . 4-63 CN-112, DR-87, FL-107, FR-159, PW-119 Schematic Diagrams . 4-65 PS-420 Printed Wiring Board. 4-67 PS-420 Schematic Diagram. 4-69

20、 POWER BLOCK (HS-930SU) Printed Wiring Board. 4-72 POWER BLOCK (HS-930SU) Schematic Diagram. 4-73 5.IC PIN FUNCTION DESCRIPTION 5-1.Interface Control Pin Function (MB-84 Board IC604) . 5-1 5-2System Control Pin Function (MB-84 Board IC805) . 5-2 6.TEST MODE 6-1.Starting up Test Mode . 6-1 6-2.Select

21、ion of Check Item . 6-1 6-2-1.Selected Item Check . 6-1 6-2-2.All Items Check . 6-1 6-3.Error Display. 6-2 6-4.General Description of Checking Method. 6-2 6-5.Drive Auto Adjustment. 6-8 6-6.Drive Manual Operation . 6-12 6-6-1.Drive Manual Operation Menu Screen . 6-12 6-6-2.Disc Type. 6-12 6-6-3.Manu

22、al Control 1 . 6-12 6-6-4.Manual Control 2 . 6-13 6-6-5.Manual Control 3 . 6-13 6-6-6.Manual Adjust 1. 6-13 6-6-7.Manual Adjust 2. 6-14 6-6-8.Auto Adjust . 6-14 6-6-9.Check . 6-14 6-6-10. EEPROM Data Screen Display . 6-15 6-7.Other Operation. 6-15 6-8.Emergency History . 6-16 6-9.Error Code . 6-18 7

23、.ELECTRICAL ADJUSTMENT 7-1.Power Supply Check . 7-1 1.HS-930SU Board. 7-1 7-2.Adjustment of System Control . 7-2 1.System Clock 27 MHz Adjustment. 7-2 7-3.Adjustment of Video System . 7-2 1.Video Level Adjustment . 7-2 2.S-terminal Output Check. 7-2 3.Checking Component Video Output B-Y . 7-2 4.Chec

24、king Component Video Output R-Y . 7-3 5.Checking Component Video Output Y . 7-3 6.Checking S Video Output S-C. 7-3 7.Checking S Video Output DC Level . 7-3 7-4.Adjustment Related Parts Arrangement . 7-4 8.REPAIR PARTS LIST 8-1.Exploded Views . 8-1 8-1-1.Case Assembly . 8-1 8-1-2.Front Panel Assembly

25、 . 8-2 8-1-3.Chassis Assembly . 8-3 8-1-4.DVD Mechanism Chassis Assembly (1) . 8-4 8-1-5.DVD Mechanism Chassis Assembly (2) . 8-5 8-2.Electrical Parts List . 8-6 RadioFans.CN 收音机爱 好者资料库 4 SERVICE NOTE 1.DISASSEMBLY This set can be disassembled in the order shown below. Tray (Page 2-2) TK-47 Board (P

26、age 2-2) Upper Case (Page 2-1) MB-84 Board (Page 2-1) Front Panel Section (Page 2-1) Door Open/ Close Motor (Page 2-1) AU-218 Board (Page 2-2) MD Block Assy (Page 2-2) Optical Pick-up (Page 2-3) Skew Motor (Page 2-3) Spindle Base (Page 2-3) Sled Motor (Page 2-3) Spindle Motor (Page 2-3) Set 5 3.HOW

27、TO SERVICE MB-84 (SIDE B) BOARD 1) Remove the case from the set. (Refer to 2-1) 2) Remove the cover (upper). (Refer to 2-3) 3) Set the MB-84 board as shown in Fig. 3. Note 1: Do not disconnect wiring. Note 2: Spread a insulating material under the MB-84 board and through down lest you should short.

28、4) Mount the extention cable (J-6090-079-A). (MB-84 (CN601) FL-107 (CN153) Fig. 3 2.DISK REMOVAL PROCEDURE (at POWER OFF) 2-1.How to Open the Door 1) With the top case removed, rotate the gear (D) 1 in direction A to open the door. (See Fig. 1) Fig. 1 2-2. How to Draw out Tray 1) Insert a cross-tip

29、screwdriver into a hole at the bottom, and rotate the cam gear 2 in direction B. (See Fig. 2) Note: To prevent a damage of cam gear, rotate it in direction B by 1/4 turn. 2) Draw out the tray 3 in direction C by hand, and remove a disk. (See Fig. 2) Fig. 2 1 Gear (D) A B C 2 Cam gear 3 Tray Hole MB-

30、84 board Extention Cable (J-6090-079-A) 6 4.NOTE ON MOUNTEING SLED MOTOR 1) Push the sled motor assy 1 toward direction A. (See Fig. 4) 2) Tighten two screws 2 (M1.7 2.5). Fig. 4 3) Raising the MD block assy 3 90 with the side down. confirm that the optical pick-up 4 falls by self weight. (See Fig.

31、5) 4) Further, with the front side of MD block assy 3 up, confirm that the optical pick-up falls by self weight. Fig. 5 1 Sled motor assy 2 Two screws (M1.7 2.5) A 3 MD block assy 4 Optical pick-up Upper LowerFront side Upper Lower Front side 7 5.REPLACING OPTICAL PICK-UP 5-1.Handling 1) A red laser

32、 diode for DVD requires more attention to static electricity than general infrared laser diodes for CD. Because its durability to static electricity is far weaker than that of infrared laser diodes, always use an earth band when handling the optical pick-up block as service parts. 2) As for the flex

33、ible board KHS-180A (RP) packed as service parts, the short lands have been soldered to protect from static electricity. Accordingly, remove solders when replacing opti- cal pick-up. (See Fig. 6) Fig. 6 Flexible board 3) In handling the KHS-180A (RP), do not touch inhibited parts shown in Fig. 7, bu

34、t grip the slide base bearing and U-shaped guide. Fig. 7 KHS-180A (RP) DVD short land CD short land Slide base bearing Skew sensor Lens actuator covers Objective lenses U-shaped guide OEIC Laser holder Flexible board Connector Laser coupler Touch inhibited parts Objective lens Skew sensor Laser hold

35、er Laser coupler Flexible board OEIC Lens actuator covers 8 6.NOTE ON ASSEMBLING MECHANICAL DECK 6-1.Application of Grease 1) Grease must be applied if the following parts were replaced. (See Fig. 8) Note 1: Recommended grease is Foil KG-70MP. Note 2: In applying grease, take care not to allow greas

36、e to stick to other parts (particularly, rubber belt, spindle motor, and optical pick-up) Base unit holder 2 bosses Slide baseSkew cam Cam gear Tray 3 grooves Note:Add grease if tray moves slowly. Loading pulley shaft Note:Add grease if tray generates noise periodically. Fig. 8 9 6-4.Deformation of Insulator 1) Assemble the spindle base into the base unit. 2) Lock with 4 shoulder screws. (See Fig. 11) 3) Check if 4 insula