NAD-C545BEE-cd-sm 维修电路原理图.pdf

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1、NADC 545BEECOMPACTDISC PLAYERC 545BEECOMPACTDISC PLAYERSERVICE MANUALRadioFans.CN 收音机爱 好者资料库- 2 -SAFETY INFORMATIONCAUTIONTHIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:-(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND(2) THIS DEVICE MU

2、ST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.The lightning flash with arrowhead, within an equilateral tri-angle is intended to alert the user of the presence ofuninsulated dangerous voltage within the productsenclosure; that may be of sufficient mag

3、nitude to consti-tute a risk of electric shock to persons.The exclamation point within an equilateral triangle is intend-ed to alert the user of the presence of important operatingand maintenance (servicing) instructions in the literatureaccompanying the appliance.CLASS 1LASER PRODUCTRadioFans.CN 收音

4、机爱 好者资料库- 3 -SERVICE SAFETY PRECAUTIONS1. Replacing the fusesCAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE.Reference NoPart NumberDescriptionFC201 *C 5120-0050+0FUSE T1.6A/250V 5X20FC201 *AH 5120-0052+0FUSE T1.6A 250V 5X20FC202, FC204, FC205 *C 5120-0

5、018+0FUSE T1A 250V 5X20FC202, FC204, FC205 *AH 5120-0020+0FU T1A 250V UL/CSA 5X20FC203 *C 5120-0035+0FU T100MA 250VFC203 *AH 5120-0036+0FUSE 250V 100MA T 5X20NOTE: : USA, CANADIAN MODEL ONLY. : EUROPEAN MODEL ONLY.2. Safety check out(Only U.S.A. model)Before returning the product to the customer, ma

6、ke leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit.Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace only with parts recommended by the manufacturer.CONTENTSDESCRIPTION PAGE

7、SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4REAR PANEL / FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5DISASSEMBLY INSTRUCTIONS . . . . . .

8、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RF PATTERN TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10、 . . . . . . . .10-12PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-16SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-23IC BLOCK DIAGR

11、AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-31TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . .

12、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-44MECHANISM EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45MECHANISM EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13、46EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48PACKING DIAGRAM . . . . . . . . . . .

14、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49- 4 -SPECIFICATIONSGENERAL PARAMETERS Output level - Analog 2.2 0.1 V Optical -22.5 3.5 dBm Coaxial 650 150 mV Frequency response 0.3 dB (ref. 0 dB 20 Hz-1 kHz) 0.5 dB (ref. 0 dB 5 kHz-20 kHz) Total harm

15、onic distortion 90 dB De-emphasis -3.73 to -5.33 dB (ref. 0dB 5 kHz) -8.04 to -10.04 dB (ref. 0 dB 16 kHz) Linearity 0.01 dB (ref. 1 kHz at -3 dB) 0.02 dB (ref. 1 kHz at -6 dB) 0.02 dB (ref. 1 kHz at -10 dB) 0.05 dB (ref. 1 kHz at -20 dB) 0.15 dB (ref. 1 kHz at -60 dB)DIMENSION AND WEIGHT Unit Dimen

16、sions (W x H x D) 435 x 285 x 70 mm (Net) 435 x 293 x 86 mm (Gross)* Net weight 4.9 kg Shipping weight 6.3 kg* - Gross dimensions include feet, extended buttons and rear panel terminals.- 5 -1. UPGRADE PORT 2. LINE OUT 3. DIGITAL OUT (COAXIAL, OPTICAL)4. +12V TRIGGER INPUT5. IR INPUT6. AC MAINS INPU

17、T1. STANDBY 2. STANDBY LED 3. DISC TRAY4. OPEN/CLOSE5. PLAY/PAUSE6. STOP7. RANDOM8. REPEAT9. DISPLAY10. SKIP/SCAN11. VFD12. REMOTE SENSORREAR PANEL / FRONT PANELREAR PANELFRONT PANEL123456123456789101211- 6 -76654312DISASSEMBLY INSTRUCTIONS1. Remove machine screws M 4.0 x 6.0 ( 1 to 4 ) from the sid

18、e panels. Remove tapping screw 3.0 x 8.5 ( 5 )from the back panel. Refer to Figure No.1. Figure No.12. Pull both sides of the TOP COVER slightly outwards 6 and tilt approx. 35 and then remove in the direction as indicated by the arrow 7 . Refer to Figure No.2. Figure No.2.- 7 -BLOCK DIAGRAM? ? ?- 8

19、-WIRING DIAGRAMCD MECHANISMSWITCH BoardKEY BoardSERVO BoardMAIN BoardTRANSFORMERAC IN7013-0550+0part of the fascia assembly7013-0510+07013-0530+0part of the fascia assembly NSPNSP7013-0540+07012-9020+07013-0520+07013-0570+07013-0560+0 7013-1280+0 7012-9301+0 CORD-AC GS 250V 2.5A - C VERSION7012-9331

20、+0 CORD-AC UL 125V 7A - AH VERSION- 9 -RF PATTERN TESTINGNAD - C 545BEE PCB TESTING POINTS DIAGRAMTESTING PROCEDURE(1) Load the test disc (Sony Test CD YEDS-7) and set the unit into PLAY mode.(2) Connect the scope to C7 (Pin 81 of IC1) and DGND (C32). Scope setting: Coupling : AC. Vertical sensitivi

21、ty : 0.2 V/ div. Horizontal time base : 0.5 S/div.(3) Observe the waveform is 1.5V p-p +/-5% and the eye pattern is at its best shape (see FIG. 1).FIG. 1 (a) FIG. 1 (b) Poor eye pattern FIG. 1 (C) Good eye pattern3T4T5T 11TTest Point- 10 -IMPORTANT NOTESINSTRUCTION FOR HANDLING OPTICAL SYSTEM BLOCK

22、PICK-UPElectrostatic breakdown of the laser diode in the optical system block may occur due to a potential difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to prevent any electrostatic charge during unpacking or repair work.1. G

23、round for Human BodyBe sure to wear a ground band (1M ohm) that is properly to remove any static electricity that may be charged on the body.2. Ground for Work BenchBe sure to place a conductive sheet (1M ohm) or copper plate with proper grounding on the work bench or other sur-face on which the pic

24、k-up is to be placed.3. Because the static electricity charge on the clothing does not discharge through the body grounding band, do not let clothing to get in contact with the pick-up unit. PRECAUTIONS FOR CHECKING BEAM EMISSIONThe laser beam of this unit is focused on the reflecting surface of the

25、 objective lens in the optical system block. Therefore, keep your eyes at least 12 inches (30 cm) away from the objective lens when the laser diode is ON.(Operation Check Method for Laser Diode and Focus Search Function.)When the POWER switch is turned ON after the chucking plate is removed, observe

26、 the objective lens and confirm that the following operations are performed properly.(The optical system should be at the lead-in area position when it is checked at this time.)(1) The laser should be at the innermost position after the chucking plate is removed.(2) The diffused light of the laser b

27、eam can be seen when the POWER switch is turned ON.(3) Vertical (up and down) movement of the objective lens (2 or 3 times) will take place.INCORRECT CORRECTNOTE: Laser diodes are so susceptible to damage from static electricity that even if a static discharge does not ruin the diode, it can shorten

28、 its life or cause it to work improperly.1.Grounding band1M ohm1M ohm2.Conductive Sheet or Copper Plate- 11 -PRECAUTIONS WHEN CHANGING LASER PICK-UPWhen removing the pick-up assembly, short circuit the PCB tracks on the optical block as show in the drawing in order to protect the pick-up before remo

29、val.NOTE: Replacement pick-up assemblies are supplied with the PCB pattern already protected.DO NOT REMOVE THE SHORT CIRCUITS UNTIL YOU HAVE FINISHED FITTING THE PICK-UP.Caution:Laser diodes are extremely susceptible to damage from static electricity. Even if a static discharge does not ruin the dio

30、de, it can shorten its life or cause it to work improperly. When replacing the pick-up, use a conductive mat, a grounded soldering iron, and so on, to protect the laser diode from static damage.Ground Conductive Wrist Band for BodyGround Line Less than 10 ohmConductive Gum MatSoldering Iron with Gro

31、und wireProtective soldering place for laser diode- 12 -MULTI-KEY TABLE FOR C545BEE (orignal production)ItemContentMulti-key123VFD full segment displaySTOP + SCAN BACKPlaytime totalRANDOM + SCAN FORWARDEject times countRANDOM + SCAN BACKNOTESNew special key functions (MCU v0.4.0. & Servo v4.4.)-Play

32、time counter : Random + Scan Forward for 5 sec -Open tray (Eject times) counter : Random + Scan Back for 5 sec -Counter reset : Random + Display for 5 sec, then press password 5-4-5-5-6-5 via remote -Auto-standby on/off : Random + Play for 5 sec. -VFD full segment display : Press Stop + Scan Back fo

33、r 5 sec. - 13 -PCB LAYOUTKEY BOARDbottom sidetop sideSWITCH BOARDtop sidebottom sidetop sidebottom sidePCB-C54516+SW11725-971A+000AIssue ASection D2009-04-08AMBERGNDBLUECN102A1S1D4DGND+5VLEDPOWERQ5R21R22R23bottom sidetop sideAC1AC2-28VD+5VKGNDKEY1KEY0V_R2V_R1VFD_CLKVFD_DATAVFD_CEVFD_INHCPU_5VDGNDLED

34、REMOTEDGNDPCB-C54516+KEY1725-971A+000AIssue ASection B2009-04-08P220VFD101CN102BCON101R105R104R115R109R111C104REMO101S101S105S102S103S104S107S108S109C102Z101JMP39JMP134JMP65JMP117JMP103JMP96JMP116JMP105JMP108JMP111JMP110JMP109JMP97JMP107JMP112JMP118JMP104JMP95JMP101JMP89JMP23JMP44POWERLED+5VDGNDAC1A

35、C2-28VD+5VGNDKEY1KEY0VFD_CLKVFD_DATAVFD_CEVFD_INHCPU_5VLEDREMOTEDGNDC103R106R103C107C105C106L101R110R107R108R112R113C101D103R8C1R9R10C2R11R12R13R14C3C4C5Q3Q4R18R19R20Q102- 14a -MAIN BOARD - top side- 14b -MAIN BOARD - top side132ResetRXDTXDGNDCPU_5VLR120V230VCD8VGND1.5VCL_SWJGNDOP_SWLM_CLLM_OPSPDIFD

36、ATABCLKLRCLKMCLKGNDHOLDSTATUS1ACKSTBDATASERVO_RST3.3VAC1AC2-28VD+5VKGNDKEY1KEY0V_R2V_R1VFD_CLKVFD_DATAVFD_CEVFD_INHCPU_5VDGNDLEDREMOTE217181.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.DGND1PCB-C54516+MAIN1725-971A+000AIssue ASection A2009-04-08230V120V120VRESETDETECTT1.6AL250VT1AL250VT1AL250V100mAL2

37、50VT1AL250VP217P218P219JGNDJGNDJGNDJGNDJGNDJ222Remote to MCURemote from KeyboardDGNDDETECTCPU_5VTXDRXDDGNDCPU_5VX201C216C219Q216C220C223C203C312C314C316C310C264C265C266C267C268Q205Q202C269C270C271Q203C273L201Q204C226C230C233C237C238C240C261Q210Q211Q212Q213C245C247C249C251C253D210C254Q206C255Q207C257

38、D213D214C258C259C263C208C214Q201D202L202D204D205D208D217C235C272T201H207H202H203H204H205H206H201C277C285D218C323C324P202P203R289R241R335R334R243R302R306Q208Q209J219P204P205L2C15R290D209CN103R24X202L203J220J221D203U203D206J217J218D211R262RL202RL201J209J210FC201FC202FC203FC204FC205U210U211AC201U202IC2

39、02IC203U205U206U207J214J211C210C211CON201J201J202J203J204J207RCA201U208U204J212R243D201D2D1C243J213RCA202J215C201C10L1C11U2C12C13C14J205JMP120JMP114JMP87JMP46JMP8JMP121JMP83JMP88JMP92JMP129JMP82JMP47JMP84JMP90JMP40JMP22JMP24JMP43JMP76JMP72JMP51JMP2JMP13JMP79JMP26JMP27JMP30JMP25JMP64JMP28JMP32D239R14

40、0JMP38JMP33JMP48JMP49JMP54JMP52JMP50JMP57JMP59JMP56JMP55JMP62JMP99JMP78JMP29JMP60JMP71JMP100JMP73D238JMP18JMP94JMP63JMP61JMP19JMP91JMP53JMP58JMP69JMP77J216JMP11JMP10JMP131JMP133JMP139JMP75JMP132JMP21JMP45JMP124JMP115JMP86JMP80JMP4JMP6JMP14JMP15JMP16JMP17JMP7JMP68JMP67JMP119JMP41JMP42JMP1JMP5JMP3JMP1

41、28JMP122JMP98JMP125JMP102JMP126JMP113JMP36JMP34JMP31JMP123JMP127JMP135JMP136JMP85JMP81JMP70JMP37JMP66JMP74JMP12JMP137JMP138JMP35SW201- 15a -MAIN BOARD - bottom side- 15b -MAIN BOARD - bottom side1161732334849648VJGNDJGNDJGNDJGNDJGNDR26IC206C317C318R300C308Q215R201C320C319R281R282R299R295R298R297R296

42、R279R280C315C274IC209R202R244R245R246R257C224C225C227C228R344R248R249R250R251R252R253R254R255R256R247R258R259C278R260C301R261C283C284C286C287C290C288C291C292C293C294C295C296C297C298C299C279C302R315R318R319R321R322R323R324R325C303C304C305C306C307R328R329R330R331R336R337R338R339R340R341R342R343R345R34

43、6R347R350R351R352R353R264R317R316R273R275R276R277R278R203R314R212R213R214R215R216R217R218R219C212C213R220C215R221C204C217C218C221C222C309C311C313C209IC208R326R349R332R333R348R327R288R266R265R272R354R355R286R291R292R293R294R285 R284R283R204C289R320R4C322R1R205R206R207R209R303R304R305R307R308R310R311R

44、356R2R267R3R210R208R7R5R6C321C6C7C8C9R222R25C280R271R270C275C276R268R139R138IC207L204L205R274U209IC204P216-28V1V53V38VAC1AC2ACKBCLKCL-SWCPU-5VD+5VDATADGNDGNDHOLDJGNDKEY1KEY2KGNDLCD-CELCD-CLKLCD-DATALCD-INHLEDLM-CLLM-OPLRCLKMCLKOP-SWREMOTESERVO-RSTSPDIFSTATUS1STBUSB-DATAU201C250C242C232C229C260C252C2

45、31C236C234C239C262C241C256C248C244C246R263Q1Q2U1D3D212R357R15R16R17C205U3Q6C281D207- 16a -SERVO BOARDbottom sidetop side- 16b -SERVO BOARDbottom sidetop sideQ1C1C10C12C13C14C15C17C18C19C2C20C21C22C23C24C25C26C27C28C29C3C35C36C37 C38C4C40C42C43C44C45C46C5C50C51C52C53C54C62C63C8C9R1R10R11R15R18R19R29R

46、30R31R32R5IC3R6X2X3X4X1C78C80C65C67C68C69 C70C94C96C73C74C76C77C89C66C71C95IC11R8R12R13R16R55R39R22R200R33R34R57R21R42R26R25R56R40R48R14IC10IC9X6C85C90C93R36R58IC8X5X7D20Q15Q16Q4R17R185R198R199R20R202R38R41R49R61R63X8R43R44R79R45R47R50R51R52R53R54SW1R59R67R100Q5Q6C6C83C84C87C88R35R7R101R102R103R46R6

47、6R69R78R81R82R83R84R85R86R87R88R90R91R92R93R94R95R96R97R98R99U2J4J5JP7J7J9J10J11J12MAERK2C32C55C39C56C57C34C33C58Q2Q3JP1JP15JP2JP3JP4JP5 JP6C30C91C61C31R3R4R2R9C47C11R89J6C41C75R37C16J1R80IC5J3IC1D1IC77D2R24R27JP40R28R60R62L1Q7C49C59C60C7R65R68R70R71R72R73R74R75R76C64C72C79C81C82R64R77J104J2C86C48D3

48、JP8C100C101R104R23J8R119R118- 17 -SCHEMATIC DIAGRAMKEYNOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS OTHERWISE SPECIFIED. 2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS OTHERWISE SPECIFIED./?%?%?7?%*+?%(?%?,7?%*+?%?8%+?%8?8?,+541/?*?+)?5?%?%?%?7?%*?%(?8?,+?%?8%+0?%?9(%?)+?%?8%+?%?:?#?+?%?%?%?+?+?%88

49、?%+?%?+?%&?%?:?#?+?%;(?&?%8?+?8?%+?%&+?+?%;5?+?(?&?,?,?/?*)5?5?5+?1?0?*?/+?/,?,?*,?%?%?%?,7?(*0?053?0?539/?1?#?6.?6#B?6?1?#?6.?6#B?6?*?3?,?1?0?0+?0?0?/?34-?*?/?*?541?1)?1?*?(?8541&+)?)1;?%+51?+ ?0)?0?2?+51?+ ?0?-?)?0?-?1?(0?-?0?83?)0-?&*?+),?;?*?%?-?) %?-?) ?,?)1)+?1)+?4?1?4?+?(3(?83(8?&?1?;1)0-?41)

50、?%?-3+?355?14?)+-3?38?&?;?(%05?(?05?C(?1?(?1?(?%(1?3&(,?;4?8?&?%?&?2+?%?:8+?8+?%8?%=?;%&=?(?&+?&;?+?&?8?+?%&?%?+?;%?%?%?8(&?23&*?%8?%?+?8;?%+?&%?%+?&?8?+?&?8?+?;?8?%?(?%?7?(.?8?%?9?%?%;?%?%?%?,7?%*?5?/?%;1?&%?,?(8&9?8?32?*?51?/?(*?851?&*+,;?4?%?1?8?;?(?%?7?(.?8?%?&?%?;?8%?,7?(.+?(?:8+?(?8+?(8?8?+?8?