Technics-SLDZ1200-cd-sm 维修电路原理图.pdf
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1、GG GG Playable mediaCD (12 cm) (5 ” ):CD-Audio (CD-DA)CD-R / CD-RW (CD-DA, MP3)SD Memory CardGG GG CD-MP3 player formatCompatible compression rate:between 32 kbps and 192 kbps(Recommended: 128 kbps)Compatible sampling rate:48 kHz / 44.1 kHz / 32 kHzGG GG SD Audio play formatAudio extension format:MP
2、EG2-AAC / MP3Compatible sampling rate:48 kHz / 44.1 kHz / 32 kHzGG GG AudioNo. of channels:2 (stereo)Frequency response*:4 Hz-20 kHzOutput voltage:2 Vrms (0 dB) (JEITA)Output terminal:Pin jackGG GG Digital audio outputCoaxial digital output:Pin jack2004 Matsushita Electric Industrial Co., Ltd. Allri
3、ghtsreserved.Unauthorizedcopyinganddistribution is a violation of law.SL-DZ1200PPSL-DZ1200EBSL-DZ1200EGSL-DZ1200EPSL-DZ1200GNColours(S).Silver TypeGG GG HeadphoneOutput level:20 mW max. 32 (adjustable)GG GG PickupWave length:790 nmLaser Power:No hazardous radiation is emittedGG GG GeneralPower suppl
4、y:PP ; AC 120 V, 60HzEB,EG,EP,GN; AC 220-240 V, 50HzPower consumption:20 WDimensions (W H D):320 111 330 mm(1239/64” 43/8” 13 ” )Mass:5.8 kg(12.8 lb.)Note:Specifications are subject to change without notice.Mss and dimensions are approximate.*Specifications are the values when playing CD audio in th
5、e CDPLAYER mode with temporeset.Direct Drive Digital TurntableSpecificationORDER No.AD0404041C0A2RadioFans.CN 收音机爱 好者资料库 1 Safety Precaution 3 2 Caution for AC Mains Lead 4 3 Handling Precautions for Optical pick-up 5 3.1. Handling of traverse deck optical pick-up 5 3.2. Grounding for electrostatic
6、breakdown prevention 5 4 Precaution of Laser Diode 6 5 Accessories 7 6 Main features 8 7 Component part names 9 8 Operation Checks and Component Replacement Procedures 10 8.1. Checking for the control panel (1) P.C.B. and control panel(2) P.C.B. 10 8.2. Checking for the main P.C.B. 10 8.3. Checking
7、for the jack P.C.B. 10 8.4. Checking for the power supply P.C.B. 11 8.5. Checking for the CD servo P.C.B. 11 8.6. Replacement for the LED P.C.B., loading motor P.C.B.,CD mouse ass y and motor 12 8.7. Replacement for the center panel ass y and LCD 13 8.8. Replacement for the connection P.C.B. and sen
8、sor P.C.b. 14 8.9. Replacement for the turntable ass y and slip plate ass y 14 8.10. Replacement for the control panel (2) P.C.B., button baseB and button base C. 16 8.11. Replacement for the control panel (1) P.C.B., reverseswitch P.C.B., button base A and button base D 16 8.12. Replacement for the
9、 CD servo P.C.B. 17 8.13. Replacement for the optical pick-up 18 9 Technological Explanation of the Circuit and Signal 20 10 Self-diagnosis function 34 10.1. DEVICE TEST 34 10.2. TT BRAKE TEST 35 10.3. TT SPEED (Phase) TEST 35 10.4. SW &LED TEST 36 10.5. LED TEST 36 10.6. SD SAVE /LOAD 37 10.7. INIT
10、IAL 37 10.8. CD UNIT TEST 1 37 11 Cautions after Exchange of the Flash ROM (IC23) 38 11.1. About obtaining the program. 38 11.2. Program Writing to the Flash ROM (IC23) afterReplacement 39 11.3. Program Confirmation 40 11.4. Adjusting the Display Contrast 41 12 Type Illustration of IC s, Transistors
11、 and Diodes 42 13 Schematic Diagram 43 13.1. Schematic Diagram Notes 43 13.2. Schematic Diagram 45 14 Printed Circuit Board 61 14.1. CD SERVO P.C.B. test point table 61 14.2. Printed Circuit Board 63 15 Block Diagram 69 16 Wiring Connection Diagram 75 17 Terminal Function of ICs 77 17.1. IC2(C2CBHH0
12、00043): SYSTEM CONTROL (UIMicrocomputer) 77 17.2. IC14(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGEPROCESSOR (SC Microcomputer) 78 17.3. IC34(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGEPROCESSOR (MD Microcomputer) 80 17.4. IC1(AN8882SB-E1): SERVO AMP. 83 17.5. IC102 (C2BBGE000781): SYSTEM CONTROL 83 18 Repla
13、cement Parts List 85 18.1. Component, Accessory, and Packaging Parts 85 18.2. CD Mechanism Parts 91 19 Cabinet Parts Location 95 20 CD Mechanism Parts Location 97 21 Packaging 98CONTENTS Page Page2SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GNRadioFans.CN 收音机爱 好者资料库1 Safety Prec
14、aution(This “Safety Precaution” is applied only in U.S.A.) 1. Before servicing, unplug the power cord to prevent an electric shock. 2. When replacing parts, use only manufacturers recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident. 4. Af
15、ter servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc. 5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent thecustomer from being exposed to a shock hazard.IInsulation Resista
16、nce Test 1. Unplug the power cord and short the two prongs of the plug with a jumper wire. 2. Turn on the power switch. 3. Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screwheads, control shafts, handle brackets, etc. Equipment wi
17、th antenna terminals should read between 3M and 5.2M toallexposedparts. (Fig. A) Equipment without antenna terminals should read approximately infinity to all exposed parts. (Fig. B)*Note: Some exposed partsmay beisolated from the chassis by design. These will read infinity.(Fig. A)(Fig. B) 4. If th
18、e measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repairedand rechecked before it is returned to the customer.3SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN2 Caution for AC Mains Lead4SL-DZ1200PP / SL-DZ1200EB / SL-
19、DZ1200EG / SL-DZ1200EP / SL-DZ1200GNThe laser diode in the optical pick-up may break down due topotential difference caused by static electricity of clothes orhuman body.So be careful of electrostatic breakdown during repair of theoptical pick-up.3.1. Handling of traverse deckoptical pick-up 1. Do n
20、ot subject the optical pick-up to static electricity as it isextremely sensitive to electrical shock. 2. To protect the laser diode against electrostatic breakdown,short the flexible board (FFC board) with a clip or similarobject. Refer to Fig. 2-1. 3. Take care not to apply excessive stress to the
21、flexible board(FFC board). 4. Do not turn the variable resistor (laser power adjustment). Ithas already been adjusted. Refer to Fig. 2-1.Fig. 2-1.3.2. Grounding for electrostaticbreakdown prevention3.2.1. Human body groundingUse the anti-static wrist strap to discharge the static electricityfrom you
22、r body. Refer to Fig. 2-2.Fig. 2-2.3.2.2. Work table groundingPut a conductive material (sheet) or steel sheet on the areawhere the optical pick-up is placed, and ground the sheet.Refer to Fig. 2-3.Fig. 2-3.Caution:The static electricity of your clothes will not be groundedthrough the wrist strap.So
23、 take care not to let your clothes touch the optical pick-up.3 Handling Precautions for Optical pick-up5SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN4 Precaution of Laser Diode6SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN5 Accessories AC power supply cord
24、 for (PP) area(REZ1619).1 pc. AC mains lead for (EB) area(REZ1496).1 pc. AC mains lead for (EG),(EP) areas(REZ1495).1 pc. AC mains lead for (GN) areas(REZ1620).1 pc. Stereo connection cable for all areas(SFDHBD2N01).1 pc. Slip surface for all areas(RGK1704-S2).1 pc.7SL-DZ1200PP / SL-DZ1200EB / SL-DZ
25、1200EG / SL-DZ1200EP / SL-DZ1200GN6 Main featuresThis direct drive digital turntable is designed for DJs to play digital media (CDs and SD audio) giving an analog-like feeling. Having the feeling of ananalog turntable, this unit delivers digitally robust functions and performance realizing a new sty
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