Technics-SLDZ1200-cd-sm 维修电路原理图.pdf

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:MPEG2-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. Allrightsreserved.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 supply: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 the 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 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 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 sensor 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 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. INITIAL 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 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(C2CBHH000043): 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 Replacement 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 Precaution(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. After 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 Resistance 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 with 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 the 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-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 not 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 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 your 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 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 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-DZ1200EG / 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 style of play.SAMPLE PADSYou can store up to 4 audio segments to memory.You can use for dual play for up to 2 sample pads,and use for switching between one shot and loopplay.CUE PADSYou can store 4 cue points tomemory. Play can be started in-stantly from one of those cuepoints.LOOP playYou can set the IN and OUTpoints and play as a loop.Strobo Dot ReflectorsYou can use the red strobo illu-minator to check changes intempo.CUESetting the cue pointStore the cue point tomemory.Back cueDuring play you can instantlyreturn to the set cue pointand the unit waits in thepause state.SD CARD LOAD and SAVEYou can SAVE and LOAD samplepad, cue point panel data etc. tothe SD Memory Card.VINYL SIMYou can simulate sound simi-lar to an analog player.DYNAMIC FXYou can transform sound byusing the platter.FORWARD and REVERSEThe rotation direction of theplatter can be reversed byswitching the play directionswitch to REVERSE or FOR-WARD.PlatterPlay media is synchronizedwith platter movement.TEMPOYou can control the play speed(tempo).You can adjust the tempo to4 levels of settings between8 and 50 using theRANGE button.You can instantly return tonormal playing speed usingthe RESET button.By using the PITCH LOCKbutton the pitch is held evenif the tempo is changed.PLAY SELECTSelects CD or SD play.Control panelFREE WHEELYou can switch the platter tofreewheel.Platter slip surfaceUse your hand to turn the plat-ter slip surface for scratch,brake and spin DJ play.CD slot (Slot in type)SD Memory Card slotFront panelRear panelTURNTABLEMode for DJ play.CD PLAYERMode for use as an audioplayer.8SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN7 Component part names9SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8 Operation Checks andComponent ReplacementProcedures Thissectiondescribesproceduresforcheckingtheoperation of the major printed circuit boards and replacingthe main components. For reassembly after operation checks or replacement,reverse the respective procedures. Special reassemblyprocedures are described only when required.8.1. Checking for the control panel(1) P.C.B. and control panel (2)P.C.B. Check the control panel (1) P.C.B. and control panel (2)P.C.B. as shown below.8.2. Checking for the main P.C.B. Follow the (Step 1) - (Step 3) of item 8.1. Check the main P.C.B. (A side) as shown below. Check the main P.C.B. (B side) as shown below.8.3. Checking for the jack P.C.B. Follow the (Step 1) - (Step 3) of item 8.1.10SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Check the jack P.C.B. as shown below.8.4. Checking for the power supplyP.C.B. Follow the (Step 1) - (Step 3) of item 8.1. Check the power supply P.C.B. as shown below.8.5. Checking for the CD servoP.C.B. Follow the (Step 1) - (Step 3) of item 8.1. Follow the (Step 1) of item 8.2.11SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.6. Replacement for the LEDP.C.B., loading motor P.C.B.,CD mouse ass y and motor Follow the (Step 1) - (Step 3) of item 8.1. Follow the (Step 1) of item 8.2. Follow the (Step 1) - (Step 9) of item 8.5.12SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.7. Replacement for the centerpanel ass y and LCD13SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.8. Replacement for theconnection P.C.B. and sensorP.C.b. Follow the (Step 1) - (Step 6) of item 8.7.8.9. Replacement for the turntableass y and slip plate ass y Follow the (Step 1) - (Step 6) of item 8.7. Follow the (Step 1) - (Step 5) of item 8.8.14SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN15SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.10. Replacement for the controlpanel (2) P.C.B., button base Band button base C. Follow the (Step 1) - (Step 3) of item 8.1.8.11. Replacement for the controlpanel (1) P.C.B., reverseswitch P.C.B., button base Aand button base D Follow the (Step 1) - (Step 3) of item 8.1.16SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.12. Replacement for the CD servoP.C.B. Follow the (Step 1) - (Step 3) of item 8.1. Follow the (Step 1) of item 8.2. Follow the (Step 1) - (Step 9) of item 8.5. Follow the (Step 1) - (Step 4) of item 8.6.17SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN8.13. Replacement for the opticalpick-up Follow the (Step 1) - (Step 3) of item 8.1. Follow the (Step 1) of item 8.2. Follow the (Step 1) - (Step 9) of item 8.5. Follow the (Step 1) - (Step 4) of item 8.6. Follow the (Step 1) - (Step 5) of item 8.12.18SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Grease PART NO.: RFKXPG64119SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN9 Technological Explanation of the Circuit and SignalComposition of the parts: (Refer to the block diagram, Fig. 1)POWER (power supply), JACK, MAIN, panel, motor (turntable), CD unit, LCD unitOutline of the parts: (Refer to the block diagram, Fig. 1)1. POWER (power supply) (Fig. 9) SW power supply with multiple correspondence from 100 to 240 V AC inlet and fuse differ according to the destination (the constants are used in common). Output of +20 V, +15 V, +7 V, +5 V, +3.3 V, -15 V Power supply for +20 V motor Power supply for +15 V analog operation amplifier Power supply for -15 V analog operation amplifier, power supply for LCD Power supply for +7 V CD unit motor +5 V system power supply +3.3 V system power supply +1.8 V system power supply (generated at the MAIN circuit board) 2. JACK Composed of I/O JACK, SW, turntable drive circuit, analog circuit, etc. Headphone JACK: 6.3 mm specification, stereo, 20 mW (at the time of a 32 ohm load) Headphone volume: Variable LINE OUT: RCA pin type, L/R ch Digital output: COAXIAL Control: Used with connection of stereo MINI, DZ, or MZ Mode switching switch: Turntable mode (scratching is possible, turntable speed) CD mode (scratching is not possible, the turntable does not turn) Brake: The brake at the time of turntable mode becomes variable. 3. MAIN System control is performed. Composed of the three microcomputers UI, SC, and MD. UI microcomputer: Control of the main panel SC microcomputer: Mainly control of sound processing, LCD display, audio output MD microcomputer: Mainly control of data reading, CD and SD data reading 4. Panel Composed of switches, LEDs, adjustment controls, etc. Panel switches, LED control, volume control A/D method by resistance division, divided into 10 steps 5. Motor This is the turntable motor circuit board. It is composed of the motor common with SL1200. 6. CD unit CD drive unit for CAR, with antivibration construction, max. 4x speed. The MAIN circuit board uses an ATAPI connection. 7. LCD unit This is a display LCD unit with 128 x 128 full dots and blue mode. Explanation of the main signals: UI microcomputer Panel control SW10 to 40: SW input CD/SD: CD/SD switching input REV: Reverse switch input PCON: Pitch control switch input CP0, 1, CPLED, CPDATA, CPCLK: LED control STROBE: Stroboscope output SW input for SD open detection, CD/turntable switching, and switches other thanEJECT20SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Others ENCA/B: Sensor encoder input LINKSD/LINKSK: For control terminals TTPWM: Turntable clock SC microcomputer Audio output DSP.DATA/BCK/LRCK/SCK: Audio data, digital output data LCD controls CRDT0 to 7, others CD shutter controls CDOPN/CLS, CDSMO/C: CD shutter detection and motor control JTAG.xx: For bug check DSP.DTx, GIOx: For MD microcompu