Marantz-CD7-cd-sm 维修电路原理图.pdf

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1、model CD-74822 725 51186First Issue 1999.03355K855010 MITPrinted in JapanServiceManualRPlease use this service manual with referring to the user guide ( D.F.U. ) without fail.修理際、必取扱説明書準備操作方法確認上作業行。 Compact disc player74 CD7 /02GCD-7 FN KGL TABLE OF CONTENTSSECTIONPAGE1.TECHNICAL SPECIFICATIONS .12.

2、SERVICING HINTS .23.SERVICINE TOOLS .24.SERVICE MODE .35.MICROPROCESSOR AND IC DATA .46.WIRING DIAGRAM .77.BLOCK DIAGRAM .98.FLAG NO. 109.SCHEMATIC DIAGRAM AND PARTS LOCATIONS . 1110.EXPLODED VIEW AND MECHANISM PARTS LIST. 2711.TRAY MECHANISM ADJUSTMENTS. 3312.BALANCED JACKS . 3713.DIGITAL FILTER .

3、3814.EXPLANATION OF DSP . 3915.ELECTRICAL PARTS LIST . 41RadioFans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.Only original MARANTZ parts can insure that your MARANTZ product will continue

4、to perform to the specifications for whichit is famous.Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.ORDERING PARTS :Parts can be ordered either by mail or by Fax. In both cases, the correct part number has to be specified.The following informat

5、ion must be supplied to eliminate delays in processing your order :1. Complete address2. Complete part numbers and quantities required3. Description of parts4. Model number for which part is required5. Way of shipment6. Signature : any order form or Fax. must be signed, otherwise such part order wil

6、l be considered as null and void.MARANTZ AMERICA, INC.440 MEDINAH ROADROSELLE, ILLINOIS 60172USAPHONE : 630 - 307 - 3100FAX: 630 - 307 - 2687LENBROOK INDUSTRIES LIMITED633 GRANITE COURT,PICKERING, ONTARIO L1W 3K1CANADAPHONE : 905 - 831 - 6333FAX: 905 - 831 - 6936MARANTZ EUROPE B. V.P .O.BOX 80002BUI

7、LDING SFF25600 JB EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2732241FAX: +31 - 40 - 2735578SUPERSCOPE TECHNOLOGIES, INC.MARANTZ PROFESSIONAL PRODUCTS2640 WHITE OAK CIRCLE, SUITE AAURORA, ILLINOIS 60504 USAPHONE : 630 - 820 - 4800FAX: 630 - 820 - 8103TC ELECTRONICS CANADA LTD.540 FIRING AVE.BAIE DURF

8、, QUEBEC H9X 3T2CANADAPHONE : 514 - 457 - 4044FAX: 514 - 457 - 5524MK ENTERPRISES LTD.2F SHINHAN BLDG., 247-17 SEOKYO-DONGMAPO-KU, SEOULKOREAPHONE : +82 - 2 - 323 - 2155FAX: +82 - 2 - 323 - 2154MARANTZ BRAZILCAIXA POSTAL 21462CEP 04698-970SAO PAULO, SP , BRAZILPHONE : 0800 - 123123FAX: +55 11 534. 8

9、988PAl- YUING CO., LTD.6 TH FL NO, 148 SUNG KIANG ROAD,TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 (2) 5221304FAX: +886 (2) 5630415MRZ STANDARD CO., LTD.746 - 754 MAHACHAI RD.,WANGBURAPAPIROM, PHRANAKORN,BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 - 9181FAX: +66 - 2 - 224 - 6795WO KEE HONG ELECTRONICS

10、 SDN. BHD.NO. 102 JALAN SS 21/35, DAMANSARAUTAMA, 47400 PETALING JAYASELANGOR DARUL EHSAN,MALAYSIAPHONE : +60 3 - 7184666FAX: +60 3 - 7173828MARANTZ JAPAN, INC.35- I , 7- CHOME, SAGAMIONOSAGAMIHARA - SHI, KANAGAWAJAPAN 228-8505PHONE : +81 42 748 1013FAX: +81 42 748 9190日 本 株 式 会 社本 社 228-8505神奈川県相模原

11、市相模大野 7 - 35 - 1営業本部 150-0022 東京都渋谷区恵比寿南 1 - 11 - 9FORWARD MARKETING (S) PTE. LTD.23, LORONG 8, TOA PAYOH,SINGAPORE 319257.PHONE : +65 2583640FAX: +65 3564047SHOCK, FIRE HAZARD SERVICE TEST :CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between e

12、ither primary ACcord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product andcontrols and chassis bottom.Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, andverif

13、ied before it is return to the user/customer.Ref. UL Standard No. 1492.USACANADAEUROPE / TRADINGUSACANADABRAZIL(Discagem Direta Gratuita)TAIWANTHAILANDMALAYSIAIn case of difficulties, do not hesitate to contact the TechnicalDepartment at above mentioned address.JAPAN TechnicalSINGAPORE981110MITSCAN

14、AUDIO PTY. LTD.52 CROWN STREET, RICHMOND 3121VICTORIAAUSTRALIAPHONE : +61 - 3 - 9429 - 2199FAX: +61 - 3 - 9429 - 9309AUSTRALIA / NEW ZEALANDKOREARadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONS特性特性特性特性特性 . 2周波数特性 . 2Hz20,000Hz, +0 -1.2dB . 98dB 以上S/N 比 . 102dB . 100dB (1kHz)高調波歪率 . 0.002% (1kHz)

15、. 水晶精度誤訂正方式 . (C IRC )音声出力 . 2.2V RM S . 3.8V RM S出力 . 0.5V p-p/75 光出力(角型光) . -19dB m入力 . 0.5V p-p/75 光出力(角型光) . -19dB m光学読取方式光学読取方式光学読取方式光学読取方式光学読取方式 . A lGaA s 半導体波長 . 780nm信号方式信号方式信号方式信号方式信号方式 周波数(C D ) . 44.1kHz (D /A ) . 32/44.1/48kHz 量子化 . 16 / 電源部電源部電源部電源部電源部電源 . A C 100V 50/60Hz消費電力 (電気用品取締法

16、) . 25W他他他他他最大外形寸法 (幅高奥行) . 454139344mm質量 . 16.6kg許容動作温度 . +5 +35許容動作湿度 . 5%90% (結露)付属品付属品付属品付属品付属品送信機 (RC -7C D ) . 1外形寸法（幅高奥行) . 4417.5239mm質量(電池) . 175g単四電池(SUM -4) . 2個RC A . 1組電源 . 1本Audio CharacteristicsChannels . 2 channelsSampling frequency (CD mode) . 44.1 kHzSampling frequency (D/A mode) .

17、 32/44.1/48 kHzQuantization . 16-bit linear/channelError correction .Cross-interleave read solomon code (CIRC)D/A conversion . 1-bit linear/channelWow & flutter . Precision of quartzOptical Readout SystemLaser. AIGaAs semiconductorWavelength. 780 nmFrequency CharacteristicsFrequency range . 2 Hz - 2

18、0 kHzDynamic range . 98 dBS/N ratio. 102 dBChannel separation (1 kHz) . 100 dBTHD (1 kHz). 0.002 %Analog outputOutput level (cinch JACKS) . 2.2 V RMSOutput impedance. 250 ohmsDigital outputOutput level (cinch JACK) .0.5 Vp-p/75 ohmsOutput level (optical JACK) .-19 dBmDigital inputInput level (cinch

19、JACK). 0.5 Vp-p/75 ohmsInput level (optical JACK).-19 dBmPower Supply Power requirementK version . 110 / 220V AC 50/60 Hz/02 version . 230V AC 50 Hz Power Consumption .19 WCabinet, etc.DimensionsWidth . 454 mmHeight. 139 mmDepth . 344 mmNetweight. 16.6 kgOperating temperatures. +5 C +35 COperating h

20、umidity . 5 % 90 % (without dew)AccessoriesRemote control unit (RC-7CD) . 1AAA (R03) Batteries . 2Stereo audio cable with cinch pins . 1AC power cord . 1Improvement may result in changes in specifications anddesign without notice.22. SERVICING HINTS3. SERVICE TOOLSAudio signals disc4822 397 30184Dis

21、c without errors (SBC444)+Disc with DO errors, black spots and fingerprints (SBC444A)4822 397 30245Disc (65 min 1kHz) without no pause4822 397 30155Max. diameter disc (58.0 mm)4822 397 60141Torx screwdriversSet (straight)4822 395 50145Set (square)4822 395 5013213th order filter4822 395 30204 Allen w

22、rench (No. 3)34.4.4.4.4. 1. 入方PLA YOPEN /C LOSE 押電源入。2. （表示 ）状態：FOC US OFF SPIN D LE OFF RA D IA L OFF M UTEON 押間外周移動。放原点戻。 N EXT 押移行。3. （表示 ）状態：FOC US ON SPIN D LE OFF RA D IA L OFF M UTE ON N EXT 押移行。 PREV 押移行。4. （表示 ）状態：FOC US ON SPIN D LE ON RA D IA L OFF M UTE ON N EXT 押移行。 PREV 押移行。5. （表示 ）状態：

23、FOC US ON SPIN D LE ON RA D IA L ON M UTE OFF PREV 押移行。 全状態以下有効。1) STOP 押間FL全点灯。2) PLA Y 押通常同動作。、動作中、異常確認時番号表示。（例：Err 10）下記表参考。6. 解除電源切解除。4. SERVICE MODE1. How to enter into the Service ModeTurn the power on while pressing PLAY+OPEN/CLOSE buttons together.2. Mode 0 (display “P 00”)Condition: FOCUS O

24、FF, SPINDLE OFF, RADIALOFF, MUTE ON While pressing (Remote Control unit only) button,the sledge moves outside.And, release from this button. The sledge return toneutral position. Press NEXT button, the function will change to“Mode 1”.3. Mode 1 (display “P 01”)Condition: FOCUS ON, SPINDLE OFF, RADIAL

25、 OFF,MUTE ON Press NEXT button, the function will change to“Mode 2”. Press PREV button, the function will change to“Mode 0”.4. Mode 2 (display “P 02”)Condition: FOCUS ON, SPINDLE ON, RADIAL OFF,MUTE ON Press NEXT button, the function will change to“Mode 3”. Press PREV button, the function will chang

26、e to“Mode 1”.5. Mode 3 (display “P 03”)Condition: FOCUS ON, SPINDLE ON, RADIAL ON,MUTE OFF Press PREV button, the function will change to“Mode 2”., The following button operations are available at theService Mode.1) While pressing STOP button, FL display shows allsegments.2)The same as Normal operat

27、ion is performed bypressing PLAY button.However if some default is detected, display shows anerror code. (For example: “Err 10”) Refer to the “Table1 ERROR CODE”.6. Canceling the Service ModeThe Service Mode is canceled by turning the power off.Error CodeErrorErr 02FOCUS ErrorErr 07SUB CODE ErrorErr

28、 08T. O. C. ErrorErr 09DECODER ErrorErr 10RADIAL ErrorErr 11, 12SLEDGE ErrorErr 13SPINDLE ErrorErr 16 20SEARCH ErrorErr 30DOOR ErrorErr 31TRAY ErrorErr 32 47BUTTON INPUT ErrorTable 1 ERROR CODE4 1IN1-negative input 1 2IN1+positive input 1 3n.c.not connected 4n.c.not connected 5VPpositive supply volt

29、age 6IN2+positive input 2 7IN2-negative input 2 8n.c.not connected 9OUT2+positive output 210GND2ground 211n.c.not connected12OUT2-negative output 213OUT1-negative output 114GND1ground 115n.c.not connected16OUT1+positive output 1PINSYMBOLDESCRIPTION Q103/Q104 : TDA7073AT 1VSSA1*analog ground 1 2VDDA1

30、* analog supply voltage 1 3D1unipolar current input (central diode signal input) 4D2unipolar current input (central diode signal input) 5D3unipolar current input (central diode signal input) 6VRLreference voltage input for ADC 7D4unipolar current input (central diode signal input) 8R1unipolar curren

31、t input (satellite diode signal input) 9R2unipolar current input (satellite diode signal input)10IrefTcurrent reference output for ADC calibration11VRHreference voltage output from ADC12VSSA2* analog ground 213SELPLLselects whether internal clock multiplier PLL is used14ISLICEcurrent feedback output

32、 from data slicer15HFINcomparator signal input16VSSA3* analog ground 317HFREFcomparator common mode input18Irefreference current output pin (nominally 0.5VDD )19VDDA2* analog supply voltage 220TEST1test control input 1; this pin should be tied LOW21CRINcrystal/resonator input22CROUTcrystal/resonator

33、 output23TEST2test control input 2; this pin should be tied LOW24CL1616.9344 MHz system clock output25CL1111.2896 or 5.6448 MHz clock output (3-state)26RAradial actuator output27FOfocus actuator output28SLsledge control output29TEST3test control input 3; this pin should be tied LOW30VDDD1(P)* digita

34、l supply voltage 1 for periphery31DOBMbi-phase mark output (externally buffered; 3-state)32VSSD1* digital ground 133MOTO1motor output 1; versatile (3-state)34MOTO2motor output 2; versatile (3-state)35SBSYsubcode block sync output (3-state)36SFSYsubcode frame sync output (3-state)37RCKsubcode clock i

35、nput38SUBP-to-W subcode output bits (3-state)39VSSD2* digital ground 240V5versatile output pin 541V4versatile output pin 442V3versatile output pin 3 (open-drain)43KILLkill output (programmable; open-drain)44EFC2 error flag; output only defined in CD ROM modes and 1fs modes (3-state)45DATAserial data

36、 output (3-state)46WCLKword clock output (3-state)47VDDD2(P)* digital supply voltage 2 for periphery48SCLKserial bit clock output (3-state)49VSSD3* digital ground 350CL44.2336 MHz microcontroller clock output51SDAmicrocontroller interface data I/O line (open-drain output)52SCLmicrocontroller interfa

37、ce clock line input53RABmicrocontroller interface R/W and load control line input (4-wire bus mode)54SILDmicrocontroller interface R/W and load control line input (4-wire-bus mode)55n.c.not connected56VSSD4* digital ground 457RESETpower-on reset input (active LOW)58STATUSservo interrupt request line

38、/decoder status register output (open-drain)59VDDD3(C)* digital supply voltage 3 for core60C2FAILindication of correction failure output (open-drain)61CFLGcorrection flag output (open-drain)62V1versatile input pin 163V2versatile input pin 264LDONlaser drive on output (open-drain)PINSYMBOLDESCRIPTION

39、 Note : All supply pins must be connected to the same external power supply voltage. Q102 : SAA7372GP5. MICROPROCESSOR AND IC DATA 1O4output of diode current amplifier 4 2O6output of diode current amplifier 6 3O3output of diode current amplifier 3 4O1output of diode current amplifier 1 5O5output of

40、diode current amplifier 5 6O2output of diode current amplifier 2 7LDONcontrol pin for switching the laserON and OFF 8VDDLlaser supply voltage 9RFEequalized output voltage of sumsignal of amplifiers 1 to 410RFunequalized output11HGcontrol pin for gain switch12LScontrol pin for speed switch13CLexterna

41、l capacitor14ADJreference input normallyconnected to ground via a resistor15GND0 V supply; substrate connection(ground)16LOcurrent output to the laser diode17MIlaser monitor diode input18VDDamplifier supply voltage19I2photo detector input 2 (central)20I5photo detector input 5 (satellite)21I1photo de

42、tector input 1 (central)22I3photo detector input 3 (central)23I6photo detector input 6 (satellite)24I4photo detector input 4 (central)PINSYMBOLDESCRIPTION 7000 : TDA1302T56QF01 : : : : : PD78076 MAINSYMBOLPINPADCELLDESCRIPTIONRCfil1E029PLL loop filter inputVref2E029decoupling internal reference volt

43、age outputVDDA3E008analog supply voltageVSSA4E004analog groundIECIN15E007high sensitivity IEC inputIECIN06IPP04TTL level IEC inputIECSEL7IUP04select IEC input 0 or 1 (0 = IECIN0; 1 = IECIN1); this input has an internal pull-upresistorIECO8OPFH3digital audio output for optical and transformer linkIEC

44、OEN9IUP04digital audio output enable (0 = enabled; 1 = disabled/3-state); this input has aninternal pull-up resistorTESTB10IPP04enable factory test input (0 = normal application; 1 = scan mode)TESTC11IPP04enable factory test input (0 = normal application; 1 = observation outputs)UNLOCK12OPP41APLL ou

45、t-of-lock (0 = not locked; 1 = locked); this output can drive an LEDFS3213OPP41Aindicates sample frequency = 32 kHz (active LOW); this output can drive an LEDFS4414OPP41Aindicates sample frequency = 44.1 kHz (active LOW); this output can drive an LEDFS4815OPP41Aindicates sample frequency = 48 kHz (a

46、ctive LOW); this output can drive an LEDCHMODE16OPP41Ause of channel status block (0 = professional use; 1 = consumer use); this outputcan drive an LEDVDDD217E008digital supply voltage 2VSSD218E009digital ground 2RESET19IDP09initialization after power-on, requires only an external capacitor connecte

47、d to VDDD;this is a Schmitt-trigger input with an internal pull-down resistorPD20IPP04enable power-down input in the standby mode (0 = normal application; 1 = standbymode)CTRLMODE21IUP04select microcontroller/stand-alone mode (0 = microcontroller; 1 = stand-alone); thisinput has an internal pull-up

48、resistorLADDR22IPP04microcontroller interface address switch input (0 = 000001; 1 = 000010)LMODE23IPP09microcontroller interface mode line inputLCLK24IPP09microcontroller interface clock line inputLDATA25IOF24microcontroller interface data line input/outputSTROBE26IDP04strobe for control register (a

49、ctive HIGH); this input has an internal pull-down resistorUDAVAIL27OPF23synchronization for output user data (0 = data available; 1 = no data)TESTA28IPP04enable factory (scan) test input (0 = normal application; 1 = test clock enable)COPY29OPP41Acopyright status bit (0 = copyright asserted; 1 = no c

50、opyright asserted); this outputcan drive an LEDINVALID30IOD24validity of audio sample input/output (0 = valid sample; 1 = invalid sample); this pinhas an internal pull-down resistorDEEM31OPF23pre-emphasis output bit (0 = no pre-emphasis; 1 = pre-emphasis)MUTE32IUP04audio mute input (0 = permanent mu