Technics-SLDZ-1200-Service-Manual电路原理图.pdf

GG GG Playable media CD (12 cm) (5 ” ):CD-Audio (CD-DA) CD-R / CD-RW (CD-DA, MP3) SD Memory Card GG GG CD-MP3 player format Compatible compression rate:between 32 kbps and 192 kbps (Recommended: 128 kbps) Compatible sampling rate:48 kHz / 44.1 kHz / 32 kHz GG GG SD Audio play format Audio extension format:MPEG2-AAC / MP3 Compatible sampling rate:48 kHz / 44.1 kHz / 32 kHz GG GG Audio No. of channels:2 (stereo) Frequency response * :4 Hz-20 kHz Output voltage:2 Vrms (0 dB) (JEITA) Output terminal:Pin jack GG GG Digital audio output Coaxial digital output:Pin jack 2004 Matsushita Electric Industrial Co., Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SL-DZ1200PP SL-DZ1200EB SL-DZ1200EG SL-DZ1200EP SL-DZ1200GN Colours (S).Silver Type GG GG Headphone Output level:20 mW max. 32 (adjustable) GG GG Pickup Wave length:790 nm Laser Power:No hazardous radiation is emitted GG GG General Power supply:PP ; AC 120 V, 60Hz EB,EG,EP,GN; AC 220-240 V, 50 Hz Power consumption:20 W Dimensions (W H D):320 111 330 mm (12 39 /64” 4 3 /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 CD PLAYER mode with temporeset. Direct Drive Digital Turntable Specification ORDER No.AD0404041C0 A2 RadioFans.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 base B and button base C. 16 8.11. Replacement for the control panel (1) P.C.B., reverse switch 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) after Replacement 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 (UI Microcomputer) 77 17.2. IC14(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGE PROCESSOR (SC Microcomputer) 78 17.3. IC34(C0ZBZ0000910): MULTIMEDIA DIGITAL IMAGE PROCESSOR (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 98 CONTENTS Page Page 2 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN RadioFans.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 the customer 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 screw heads, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M and 5.2M to allexposedparts. (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 repaired and rechecked before it is returned to the customer. 3 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 2 Caution for AC Mains Lead 4 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN The laser diode in the optical pick-up may break down due to potential difference caused by static electricity of clothes or human body. So be careful of electrostatic breakdown during repair of the optical pick-up. 3.1. Handling of traverse deck optical pick-up 1. Do not subject the optical pick-up to static electricity as it is extremely sensitive to electrical shock. 2. To protect the laser diode against electrostatic breakdown, short the flexible board (FFC board) with a clip or similar object. 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). It has already been adjusted. Refer to Fig. 2-1. Fig. 2-1. 3.2. Grounding for electrostatic breakdown prevention 3.2.1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 2-2. Fig. 2-2. 3.2.2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where 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 grounded through the wrist strap. So take care not to let your clothes touch the optical pick- up. 3 Handling Precautions for Optical pick-up 5 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 4 Precaution of Laser Diode 6 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 5 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. 7 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 6 Main features This 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 an analog turntable, this unit delivers digitally robust functions and performance realizing a new style of play. SAMPLE PADS You 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 loop play. CUE PADS You can store 4 cue points to memory. Play can be started in- stantly from one of those cue points. LOOP play You can set the IN and OUT points and play as a loop. Strobo Dot Reflectors You can use the red strobo illu- minator to check changes in tempo. CUE Setting the cue point Store the cue point to memory. Back cue During play you can instantly return to the set cue point and the unit waits in the pause state. SD CARD LOAD and SAVE You can SAVE and LOAD sample pad, cue point panel data etc. to the SD Memory Card. VINYL SIM You can simulate sound simi- lar to an analog player. DYNAMIC FX You can transform sound by using the platter. FORWARD and REVERSE The rotation direction of the platter can be reversed by switching the play direction switch to REVERSE or FOR- WARD. Platter Play media is synchronized with platter movement. TEMPO You can control the play speed (tempo). You can adjust the tempo to 4 levels of settings between 8 and 50 using the RANGE button. You can instantly return to normal playing speed using the RESET button. By using the PITCH LOCK button the pitch is held even if the tempo is changed. PLAY SELECT Selects CD or SD play. Control panel FREE WHEEL You can switch the platter to freewheel. Platter slip surface Use your hand to turn the plat- ter slip surface for scratch, brake and spin DJ play. CD slot (Slot in type) SD Memory Card slot Front panel Rear panel TURNTABLE Mode for DJ play. CD PLAYER Mode for use as an audio player. 8 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 7 Component part names 9 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8 Operation Checks and Component Replacement Procedures Thissectiondescribesproceduresforcheckingthe operation of the major printed circuit boards and replacing the main components. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures 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. 10 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Check the jack P.C.B. as shown below. 8.4. Checking for the power supply P.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 servo P.C.B. Follow the (Step 1) - (Step 3) of item 8.1. Follow the (Step 1) of item 8.2. 11 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.6. Replacement for the LED P.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. 12 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.7. Replacement for the center panel ass y and LCD 13 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.8. Replacement for the connection P.C.B. and sensor P.C.b. Follow the (Step 1) - (Step 6) of item 8.7. 8.9. Replacement for the turntable ass 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. 14 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 15 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.10. Replacement for the control panel (2) P.C.B., button base B and button base C. Follow the (Step 1) - (Step 3) of item 8.1. 8.11. Replacement for the control panel (1) P.C.B., reverse switch P.C.B., button base A and button base D Follow the (Step 1) - (Step 3) of item 8.1. 16 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.12. Replacement for the CD servo P.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. 17 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 8.13. Replacement for the optical pick-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. 18 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN Grease PART NO.: RFKXPG641 19 SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN 9 Technological Explanation of the Circuit and Signal Composition of the parts: (Refer to the block diagram, Fig. 1) POWER (power supply), JACK, MAIN, panel, motor (turntable), CD unit, LCD unit Outline 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 sign