Sony-CDPSP55-cd-sm 电路图 维修手册.pdf

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1、1 CDP-SP55 SERVICE MANUAL CDP-SP55 is the CD section in CMT-SP55MD or CMT-SP55TC. SPECIFICATIONS MINI Hi-Fi COMPONENT SYSTEM Model Name Using Similar MechanismNEW CD Mechanism TypeCDM55C-K6BD38 Base Unit TypeBU-K6BD38 Optical Pick-up TypeKSM-213DCP/Z-NP AEP Model UK Model E Model General Dimensions

2、(w/h/d)Approx. 202 75 290 mm MassApprox. 1.5 kg Design and specifications are subject to change without notice. SystemCompact disc and digital audio system LaserSemiconductor laser (=780 nm) Emission duration: continuous Laser outputMax. 44.6 W* *This output is the value measured at a distance of 20

3、0 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. Frequency response20 Hz 20 kHz Output DIGITAL OPTICAL OUT: Optical RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1. SERVICING NOTE 4 2. GENERAL 6 3. DISASSEMBLY 3-1.Case 7 3-2.Front Panel Assy 7 3-3.CD Mechanism Deck

4、 (CDM55C-K6BD38) 8 3-4.Main Board 8 3-5.CAM, GEAR 9 3-6.Holder Assy 9 3-7.Optical Pick-up 10 3-8.BD Board 10 4. ELECTRICAL ADJUSTMENT 11 5. DIAGRAMS 5-1.Circuit Boards Location 14 5-2.Block Diagram 15 5-3.Printed Wiring Board BD Section 16 5-4.Schematic Diagram BD Section 17 5-5.Printed Wiring Board

5、 Main Section 18 5-6.Schematic Diagram Main Section 19 5-7.Printed Wiring Board Loading Section 20 5-8.Schematic Diagram Loading Section 20 5-9.IC Block Diagram 20 6. EXPLODED VIEWS 6-1.Case and Front Panel Section 22 6-2.CD Mechanism Deck Section (CDM55C-K6BD38) 23 6-3.Base Unit Section (BU-6BD38)

6、24 7. ELECTRICAL PARTS LIST 25 RadioFans.CN 收音机爱 好者资料库 3 This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. CAUTION Use of contro

7、ls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Boar

8、d Repairing Keep the temperature of soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR B

9、ASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the p

10、rinted matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up

11、 block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. MODEL IDENTIFICATION BACK PANEL Abbreviation AED: North European model HK: Hong Kong model MY: Malaysia model SP: Singapore model KR: Korea model MODEL AEP,UK,AED models HK,MY,SP mod

12、els KR model PARTS No. 4-229-674-0s 4-229-674-2s 4-229-674-3s SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEA

13、R AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Parts No. RadioFans.CN 收音机爱 好者资料库 4 This unit cannot be repaired by itself. When repairing, connect the whole system except for the speaker. CD Text Display This unit displays CD text. Text is displayed for the first 50 track only and wi

14、ll not be displayed from the 51st track onwards. Do not suspect a fault in this case. In some cases, some special characters will not be displayed and may be replaced by other characters. Do not suspect a fault in this case. Cold Reset The cold reset clears all data including preset data stored in t

15、he RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure : 1.When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and ML buttons (CDP) together. 2.“COLD RESET” is displayed on the fluorescent indicator tube and reset is exec

16、uted. Hot Reset This mode reset the preset data kept in the memory. The hot reset mode functions same as if the power cord is plugged in and out. Procedure : 1.When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and lm buttons (CDP) together. 2.Turn off the unit a

17、nd reset is executed. GC Test Mode Procedure : 1.When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and PLAY MODE buttons (CDP) together. 2.Fluorescent indicator tube are all turned on. 3.Press TUNING MODE button (ST) to enter the model destination indecation mod

18、e. “SP55 CE2” appears. 4.Every pressing of TUNING MODE button (ST) changes the display in the following order. MC Version t CD Version t ST Version t TC Version t TA Version t TM Version t model destination display. 5.Press DISPLAY button (ST) and the date appears as “ 00615a ” Every pressing of DIS

19、PLAY button (ST) changes the display in the Version display and model destination display. 6.Press TUNER/BAND button (ST) to enter the key check mode. 7.In the key check mode, the fluorescent indicator tube displays “Key 0 Vol 0”. Each time a button is pressed, “Key” value increases. However, once a

20、 button is pressed, it is no longer taken into account. “Vol” Value increases like “1, 2, 3 .” if rotating VOLUME knob (TA) in the clockwise direction, or decreases like “0, 9, 8 .” if rotating in the counterclockwise diretion. 8.To exit from this mode, press three buttons in the same procedure as s

21、tep 1, or disconnect the power cord. SECTION 1 SERVICING NOTE 5 Aging Mode Mode for repeating operations of the CD player and TC deck automatically. When errors occur: Aging stops and a message indicating that an error has occurred such as “CD MEC ERR” is displayed. (For details of errors, refer to

22、“Error History Display Mode”.) When no errors occur: Aging is repeatedly performed. Procedure: 1. Load any CD and a tape. 2. Select the function “ CD ” using the FUNCTION knob (TA). 3. While pressing the TUNING MODE button (ST) and H button (CDP), press the ?/1 button (TA). 4. “AGING” is displayed o

23、n the fluorescent display tube briefly. 5. Operations are performed in the following sequence during aging. Every pressing of DISPLAY button (ST) changes the display in the CD display and TAPE display. 6.To end aging, execute the cold reset. Error History Display Mode Mode for checking the history o

24、f errors which have occurred in the CD player. Execute this mode after ending the aging mode. Procedure: 1.Select the function “ CD ” using the FUNCTION knob (TA). 2.While pressing the TUNING MODE button (ST) and S button (CDP), press the ?/1 button (TA). 3.“EMCEDC*” id displayed. : Number of mechan

25、ism errors (Last 3 errors) *: Number of errors (NO DISC ERROR) which occurred after chucking (Last 3 errors) 4.To end, press the ?/1 button (TA) and turn OFF the power. Note: To erase the error history, perform cold reset. (While pressing the TUNING MODE button (ST) and ML button (CDP), press the ?/

26、1 button (TA).) CD :Cassette : Reading of TOC Playback of first track (3sec.) Playback of last track (3sec.) CD tray open CD tray close REW(Shut off)TAPE AG-1 PLAY FF REV PLAY REW (2 min)TAPE AG-2 (Shut off)TAPE AG-3 (2 min)TAPE AG-4 (Shut off)TAPE AG-5 (Shut off)TAPE AG-6 (Shut off)TAPE AG-7 TAPE A

27、G-8 TAPE AG-9 (Shut off) FF REW OPEN CLOSE 6 SECTION 2 GENERAL 1PLAY MODE button 2REPEAT button 3H button 4S button 5s button q;9 12345 7 6 8 6lm button 7ML button 8A button 9S indicator q;H indicator 8 Step 2: Setting the time You must set the time beforehand to use the timer functions. The clock i

28、s on a 24-hour system for the European model, and a 12-hour system for other models. The 24-hour system is used for illustration purposes. Set the time before turning on the system. /1 1 2,3 2,32,3 1Press CLOCK/TIMER SET while the system is off. The hour indication flashes. 2Press . or to set the ho

29、ur, then press ENTER/YES. The minute indication flashes. 3Press . or to set the minute, then press ENTER/YES. The clock starts. If you made a mistake Start over from step 1. To change the preset time You can change the preset time while the system is on. 1 Press CLOCK/TIMER SET. 2 Press . or repeate

30、dly until “SET CLOCK” appears, then press ENTER/YES. 3 Repeat steps 2 and 3. Tips The built-in clock shows the time in the display while the system is off. If you press DISPLAY at this time, the display back light lights up, making the clock easier to see. The upper dot of the colon flashes for the

31、first 30 seconds, and the lower dot flashes for the last 30 seconds of each minute. This section is extracted from instruction manual. 7 SECTION 3 DISASSEMBLY 3-1. CASE 3-2. FRONT PANEL ASSY 1 two screws (case 3 TP2) 4 case 1 two screws (case 3 TP2) 2 2 3 SetCaseFront Panel Assy CD Mechanism Deck (C

32、DM55C-K6BD38) Holder AssyOptical pick-up Main Board (Page 8) Cam, Gear BD Board (Page 9) (Page 10) (Page 9) (Page 8) (Page 10) 1 connector (CN711) 4 screw (BVTP 3x12) 5 front panel assy 2 two screws (BVTP 3x12) 3 two foot assys claws claws 8 3-3. CD MECHANISM DECK (CDM55C-K6BD38) 3-4. MAIN BOARD 2 c

33、onnector (CN112) 3 screw (BVTP 3x8) two claws 5 CD mechanism deck 41 flat type wire (19 core) (CN713) 1 screw (BVTP 3x8) 2 main board 9 3-5. CAM, GEAR 3-6. HOLDER ASSY 4 belt (CDM55) 6 pulley (LDG) 9 gear (A) 8 gear (B) 7 roller 2 Push the claw in tne direction of arrow C. 0 cam (CDM55) 3 Pull out t

34、he tray. 5 bushing C A B B Release 1 Pull out the tray in the arrow direction A, and release the lock while pressing this claw in the arrow direction B. 2 Remove the Holder (BU) assy in the direction of arrow A. A 1 floating screw (PTPWH M2.6) 10 3-7. OPTICAL PICK-UP 3-8. BD BOARD 3 Optical pick-up

35、4 flat type wire (16 core) 1 Release the lever in the arrow direction B. B 2 sled shaft IC102 IC101 M101 M102 IC103 2 Remove the four solders. 1 screw (BVTP 2.6x8) 3 BD board 11 Note : 1.CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2.Use YE

36、DS-18 disc (3-702-101-01) unless otherwise indicated. 3.Use an oscilloscope with more than 10M impedance. 4.Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S-Curve Check Procedure : 1.Connect oscilloscope to T

37、P (FEO). 2.Connect between TP (FEI) and TP (VC) by lead wire. 3.Connect between TP (AGCCON) and TP (DGND) by lead wire. 4.Press the /1 button (TA). 5.Load a disc (YEDS-18) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search) 6.Confirm that the osci

38、lloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 4 1 Vp-p. 7.After check, remove the lead wire connected in step 2 and 3. Note : Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. Take sweep time as long as

39、 possible and light up the brightness to obtain best waveform. RF Level Check Procedure : 1.Connect oscilloscope to TP (RF). 2.Connect between TP (AGCCON) and TP (DGND) by lead wire. 3.Press the /1 button (TA). 4.Load a disc (YEDS-18) and playback. 5.Confirm that oscilloscope waveform is clear and c

40、heck RF signal level is correct or not. 6.After check, remove the lead wire connected in step 2. BD board Oscilloscope TP(FEO) TP(VC) symmetry S-curve waveform within 4 1Vp-p A B TP(RF) TP(VC) BD board oscilloscope Note: Clear RF signal waveform means that the shape “” can be clearly distinguished a

41、t the center of the waveform. RF signal waveform E-F Balance (1 Track jump) Check Procedure: 1. Connect oscilloscope to TP (TEO) and TP (VC) board. 2. Press the /1 button (TA). 3. Load a disc (YEDS-18) and playback the number five track. 4. Press the H button. (Becomes the 1track jump mode.) 5. Conf

42、irm that the level B and A (DC voltage) on the oscilloscope waveform. 1 track jump waveform Specification level: x 100=less than 22% 6. After check, remove the lead wire connected in step 1. RF PLL Free-run Frequency Procedure : 1. Connect frequency counter to test point (XPCK) with lead wire. 2. Pr

43、ess the /1 button (TA). 3. Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz. VOLT/DIV : 200mV TIME/DIV : 500ns level : 1.45 0.3Vp-p oscilloscope BD board TP (TEO) TP (VC) + 0V Center of waveform B Symmetry A (DC voltage) level=1.30.6Vp-p

44、 A B + frequency counter BD board TP (XPCK) SECTION 4 ELECTRICAL ADJUSTMENT 12 TP (XPCK) TP (TEO) TP (FEO) TP (FEI) TP (RF) TP (VC) TP (DGND) TP (AGCCON) 1 12 24 1 2021 40 60 8041 61 IC101 IC103 Adjustment Location: BD BOARD (Conductor Side) 13 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEM

45、ATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For schematic diagrams. Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise speci

46、fied. f: internal component. 2 : nonflammable resistor. 5 : fusible resistor. C : panel designation. For printed wiring boards. Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing. (The other layers patterns a

47、re not indicated.) U : B+ Line. V : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Waveforms are

48、 taken with a oscilloscope. Voltage variations may be noted due to normal produc- tion tolerances. Circled numbers refer to waveforms. Signal path. J: CD (ANALOG) c: CD (DIGITAL) Abbreviation AED: North European model HK: Hong Kong model MY: Malaysia model SP: Singapore model KR: Korea model Note: T

49、he components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Indication of transistor C B These are omitted. E Q B These are omitted. CE B These are omitted. CE SECTIOIN 5 DIAGRAMS 14 WAVEFORMS 1 IC101 yj (XTAO) PLAY MODE 6.4Vp-p 59nsec 1.2Vp-p 2 IC101 ta (RFAC) PLAY MODE 3 IC101 ra (TE) PLAY MODE 4 IC101 el (FE) PLAY MODE 1sec/div approx 300mVp-p approx 400mVp-p BD BOARD 5-1. CIRCUIT BOARD