NAD-M55-ddp-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL SERVICE MANUAL M55 MODEL : M55 AHSERVICE MANUAL NAD 2010 NAD ELECTRONICS INTERNATIONAL TORONTO M55 DIGITAL DISC PLAYER M55 DIGITAL DISC PLAYER DIGITAL DISCPLAYER RadioFans.CN 收音机爱 好者资料库 CONTENTS SECTION 1 . . . .SUMMARY SECTION 2 . . . .CABINET CHASSIS NEW LOADER SECTION 3 . . . .ELEC

2、TRICAL SECTION 4 . . . .MECHANISM (ORIGINAL LOADER) SECTION 5 . . . .REPLACEMENT PARTS LIST RadioFans.CN 收音机爱 好者资料库 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS. 1-3 SERVICING PRECAUTIONS. 1-4 General Servicing Precautions Insulation Checking Prodedure Electrosta

3、tically Sensitive Devices SPECIFICATIONS. 1-5 1-2 RadioFans.CN 收音机爱 好者资料库 1-3 CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURERS APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LI

4、ABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER. WHILE SERVICING, USE AN IS

5、OLATION TRANSFORMER FOR PROTEC- TION FROM A.C. LINE SHOCK. SAFETY CHECKS AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. A CHECK SHOULD BE MADE OF THE FOLLOWING. SUBJECT : FIRE CONNECT A 1500 OHM 10 WATT RESIS- TOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH G

6、ROUND (WATER PIPE, CON- DUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME. MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG AND REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 7

7、5 VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C ANY VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY. SUBJECT: GRAPHIC SYMBOLS THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO

8、 THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAG- NITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIAN- GLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. SUBJ

9、ECT : X-RADIATION 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN- TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC- TURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL

10、. THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERA- TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC- TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR- CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR- ABLE LEVELS. 2. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST B

11、E USED. DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN COLOR SETS, ALWAYS RE-INSTALL THEM. 3. IT IS ESSNTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRA TION OF THE METER SHOULD BE CHECKED PERIODICALLY AGAINST A REFERENCE STANDARD, SUCH AS THE ONE

12、 AVAILABLE AT YOUR DISTRIBUTOR. 4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY TIME A COLOR CHASSIS IS SERVICED. THE BRIGHTNESS SHOULD BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE WITH A METER TO BE CERTAIN THAT THE HIGH VOLT

13、AGE DOES NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING CORRECTLY, WE SUGGEST THAT YOU AND YOUR SERVICE ORGA- NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU- LATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE- DURE. AND THAT THE HIGH VOLTAGE READING BE RECORDER ON EACH CUSTOMERS

14、INVOICE. 5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE, AVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT LONGER THAN IS NECESSARY TO LOCATE THE CAUSE OF EXCES SIVE VOLTAGE. 6. REFE

15、R TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS (WHERE USED). SUBJECT: IMPLOSION 1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTE GRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID SCRAT

16、CHING THE TUBE. IF SCRATCHED REPLACE IT. 2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES. SUBJECT : TIPS ON PROPER INSTALLATION 1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY- HOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW. 2. AVOID CO

17、NDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIA- TORS WHERE STEAM LEAKAGE IS A FACTOR, ETC. 3. AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC- ORATIVE SCARVES OR OTHER COVERINGS WHICH MIG

18、HT OBSTRUCT VENTILATION. 4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMER- CIAL MOUNTING KIT. MUST FOLLOW THE FACTORY APPROVED MOUNTING INSTRUCTIONS A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACRO

19、SS THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS. 5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS PROPERLY SECURED. 6. A PRODUCT ON A ROLL-ABOUT C

20、ART SHOULD BE STABLE ON ITS MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZ- ARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACROSS THRESHOLDS OR DEEP PILE CARPETS. 7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES, INC. FOR USE WIT

21、H THEIR SPECIFIC MODEL OF TELEVISION RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V.S OF THE SAME OR LARGER SCREEN SIZE. 8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS, EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SIN- GLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FA

22、MILY. PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS A.C. VOLTMETER GOOD EARTH GROUND SUCH AS THE WATER PIPE. CONDUIT. ETC PLACE THIS PROBE ON EACH EXPOSED METAL PART 1-4a SERVICING PRECAUTIONS CAUTION : Before servicing the DVD covered by this service data and its supplements and addends, r

23、ead and follow the SAFETY PRECAUTIONS. NOTE : if unforeseen circum- stances create conflict between the following servicing pre- cautions and any of the safety precautions in this publica- tions, always follow the safety precautions. Remembers Safety First: General Servicing Precautions 1. Always un

24、plug the DVD AC power cord from the AC power source before: (1)Removing or reinstalling any component, circuit board, module, or any other assembly. (2)Disconnection or reconnecting any internal electrical plug or other electrical connection. (3)Connecting a test substitute in parallel with an elec-

25、 trolytic capacitor. Caution : A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. 2. Do not spray chemicals on or near this DVD or any of its assemblies. 3. Unless specified otherwise in this service data, clean electrical conta

26、cts by applying an appropriate contact cleaning solution to the contacts with a pipe cleaner, cotton-tipped swab, or comparable soft applicator. Unless specified otherwise in this service data, lubrication of contacts is not required. 4. Do not defeat any plug/socket B+ voltage interlocks with whitc

27、h instruments covered by this service manual might be equipped. 5. Do not apply AC power to this DVD and/or any of its electrical assemblies unless all solid-state device heat sinks are cerrectly installed. 6. Always connect test instrument ground lead to the appropriate ground before connection the

28、 test instrument positive lead. Always remove the test instrument ground lead last. Insulation Checking Procedure Disconnect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance meter(500V) to the blades of the attachment plug. The insulation resis- tance be

29、tween each blade of the attachment plug and acces- sible conductive parts (Note 1) should be more than 1M- ohm. Note 1 : Accessible Conductive Parts including Metal pan- els, Input terminals, Earphone jacks, etc. Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can b

30、e damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help reduce the

31、 incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor compo- nent or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commer- cially available di

32、scharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge build

33、up or exposure of the assembly. 3. Use only a grouned-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified a “anti-static” can generate electrical charges sufficient to damage ES devices. 5. Do not use freon

34、-propelled chemicals. These can generate electrical charge sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protec tive package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together b

35、y conductive foam, aluminum foil, or comparable conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Caution : Be sure no power

36、 is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Normally harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate s

37、tatic elec- tricity sufficient to damage an ES device.) IMPORTANT M55 tape to chassis floor 2-9 3.Packing accessory section Shipping Box Gif t Box Polyf oam(down) Polyf oam(up) Accessory Box Batteries REMOCON ? Audio and Video Cable AC Cord SECTION 3 ELECTRICAL CONTENTS ELECTRI CALTROUBLESHOOTI NG G

38、UI DE.3-3 1.Power check f low3-3 2.System operation f low3-4 3.Test R477 and R478 are 4.7Ohm when using new XY-A33 Loader. 12 2 31 2 31 SONY DVDRFP 1 DVDRFN 2 A2 3 B2 4 C2 5 D2 6 CP 7 CN 8 D 9 C 10 B 11 A 12 CD_D 13 CD_C 14 CD_B 15 CD_A 16 CD_F 17 CD_E 18 VPB 19 VC 20 DVDLD 21 CDLD 22 DVDPD 23 CDPD

39、24 VNB 25 LDON 26 MIRR 27 MP 28 MB 29 MLPF 30 MIN 31 MEVO 32 LINK 33 DFT 34 TPH 35 V125 36 V25 37 PI 38 TE 39 FE 40 CE 41 MNTR 42 LCN 43 LCP 44 V33 45 SCLK 46 SDATA 47 SDEN 48 RX 49 MEV 50 VNA 51 FNN 52 FNP 53 DIP 54 DIN 55 BYP 56 RFAC 57 VPA 58 AIP 59 AIN 60 ATON 61 ATOP 62 RFSIN 63 RFDC 64 32 1 32

40、 1 12 GND_RF A5V GND_RF GND_RF A5V DGND A5V GND_RF GND_RF A5V GND_RF AMPSEN AMPSDT AMPSCK AMPMNT LDON CD/XDVD F+ F- T- T+ FEO TEO PI VC25 RFAC DFCT MIRR 2 31 2 31 1 2 3 GND_RF A3.3V D3.3V D3.3V GND_RF VC16 To Power Supply 250(8), UL1672 20AWG , L=2805mm from psu board to AC inle t and powe r buttom

41、14-55505-00WI RE LD2.0A-5Y, UL2468 26AWG L=120 5mm from me chanism to de code board 14-55506-11 WI RE LD2.0A-6Y, UL2468 26AWG L=125 5mm from me chanism to de code board mm305,mm1,NIP61CFF00-61555-41from vide o board to SCART board mm357,mm1,NIP22CFF00-22555-41from vide o board to de code board mm357

42、,mm1,NIP03CFF00-03555-41from vide o board to de code board mm3012,mm5.0,NIP42CFF01-42555-41from lase r pick up to de code board 14-55524-10 opposite side 0033-2016te l nICA20-20070-71 15-10125-00AC Cord(AH Version) 15-10250-00AC Cord(C Version) 15-10250-03AC CORD?CHI NESE Version)X-CCC Switch 11-011

43、01-03Rocker SwitchRF-1003-BB2, TV-5 Mechanism 36-55313-00 J 37-00313-00 LASER PI CK UP KHM313AAA(Q Version) B6388-DXWREDAOL00-63880-73 Metal Parts 5T36061a i csaF1-300150-07 gn i tn i rp&gn i tn i ap,5#et i sk r i K2a i csaF0-400150-07 mm6.1=T4N-CCESa i csafbuS1-100150-76S mm6.1=T4N-CCESa i csafbuS1

44、-100150-56S 6.117491214N-CCESCCES0-800640-18 mm0.2=T4N-CCESrevoCpoT0-200150-76 S67-051003-0Rear Panel CSECC-N4 T=1.6mm mm6.1=T4N-CCES l e naPraeR0-600150-76S S80-051003-0Rear Panel CSECC-N4 T=1.6mm S65-051003-0Rear Panel CSECC-N4 T=1.6mm 6.165491214N-CCESCCES0-100150-18 mm0.1=T4N-CCESs i ssahC1-4001

45、50-76S mm0.1=T4N-CCESs i ssahC1-400150-56S 0.103591214N-CCESCCES0-400100-18 S67-051005-0Rear Panel AHSECC-N4 T=1.6mm S80-051005-0Rear Panel AHSECC-N4 T=1.6mm S65-051005-0Rear Panel AHSECC-N4 T=1.6mm 5-8 NSP krameRtn i r ptooFrotangiseDepyTt raPnoi tp i r cseDN/P 6.165491214N-CCESCCES0-100150-18 68-0

46、51001-1Shielding Box(UP)Stainless Steel T=0.5mm 68-051002-1Shielding Box(DOWN)Stainless Steel T=0.5mm S68-051003-0Loader CoverStainless Steel T=0.5mm mu n i m u l ArooDDVD1-100150-07 mm8.0=T4N-CCESrepm a l C0-200150-66 70-051002-0Ring CursorKirksite S70-051006-1Stop-Menu ButtonKirksite S70-048012-1I

47、 nput ButtonKirksite S70-048013-0Power ButtonKirksite 70-051007-0Enter ButtonKirksite (69-009001-0)Spacer Support 1 (S69-051001-0)Spacer SupportY12 u l ArecapS2-200150-96 83-043001-0Foot Assembly 92-048001-0Spring f or Button 92-051001-0Spring f or Cursor65Mn Plastic Parts 77-051001-1Cursor Holder 7

48、6-051001-0VFD windowPMMA 76-008001-0LED Lens 86-046001-0LED Lens Gum3M Double Side Adhesive 85-051001-0SNAP BUSHI NGNB-16A mm0.1=T,4-RFpma lCen i L0-200150-57 3-ACRecapSBCP0-200150-58 Fasteners 61-373506-0Machine ScrewMB36-W.S-Ni audio board(4), video board(2), power supply board(4) 61-023106-1Self

49、Taping ScrewSTB36-Ni powe r Sheilding box(6) )3(wodn iwdfv , ) 4(draobyek63BTBwercSgn i paTf l e S0-602320-16 )4 ( r evocpot8X6BMwercSen i hcaM0-805642-16 )2 ( t e l n iCA83OTSwercSgn i paTf l e S0-801370-16 )7( l enapraer83BTBwercSgn i paTf l e S0-802320-16 61-023106-0Self Taping ScrewSTB36 rear panel(5), SC