Sony-CDPXE400-cd-sm 电路图 维修手册.pdf

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1、 1 CDP-XE400/XE500 SERVICE MANUAL US Model CDP-XE400/XE500 AEP Model UK Model E Model Australian Model Chinese Model CDP-XE500 Photo: CDP-XE500 Model Name Using Similar MechanismCDP-261/361 CD Mechanism TypeCDM14-5BD20 Base Unit NameBU-5BD20 SPECIFICATIONS COMPACT DISC PLAYER MICROFILM RadioFans.CN

2、收音机爱 好者资料库 2 The laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The following caution label is located inside of the unit. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CA

3、UTION Use of controls or adjustments or performance of proce- dures other than those specified herein may result in haz- ardous radiation exposure. Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by he

4、at. MODEL IDENTIFICATION Back Panel CDP-XE400 US Model: 4-977-587-5 CDP-XE500 US Model: 4-977-587-1 E Model: 4-977-587-3 Australian Model: 4-977-587-4 Chinese Model: 4-977-587-9 AEP, German, East European Model: 4-978-388-0 UK Model: 4-978-388-1 To Exposed Metal Parts on Set 0.15F1.5k AC voltmeter (

5、0.75V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other expos

6、ed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a re- turn to chassis, must not exceed 0.5 mA (500 microampers). Leakage current can be measured

7、by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digi- tal multimeter is suitable for this job. 3. Measuring the voltage d

8、rop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters tha

9、t have a 2V AC range are suitable. (See Fig. A) RadioFans.CN 收音机爱 好者资料库 3 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on

10、clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed 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 thi

11、s model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK 1. Make POWER swit

12、ch on with no disc inserted and disc table closed. 2. Confirm that the following operation is performed while observing the objective lens. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAF

13、E OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. TABLE OF CONTENTS 1. GENERAL Identifying the Parts . 4 Playing a CD. 5 2. DISASSEMBLY 2-1. Front Panel . 6 2-2. Base Unit Block . 6 3. ELECTRICAL BLOCK CHECKIN

14、G. 7 4. DIAGRAMS 4-1. IC Pin Functions. 9 4-2. Printed Wiring Board BD Section . 13 4-3. Schematic Diagram BD Section . 15 4-4. Printed Wiring Boards Main Section . 17 4-5. Schematic Diagram Main Section . 21 5. EXPLODED VIEWS 5-1. Case Section . 28 5-2. Back Panel Section. 29 5-3. CD Mechanism Sect

15、ion. 30 5-4. Base Unit Section. 31 6. ELECTRICAL PARTS LIST. 32 RadioFans.CN 收音机爱 好者资料库 4 SECTION 1 GENERAL IDENTIFYING THE PARTS RM-D420 (CDP-XE500 only) Front Panel/Remote Commander 1 POWER switch 2 PLAY MODE button 3 REPEAT button 4 TIME button 5 Disc tray 6 OPEN/CLOSE button 7 0/) (manual search

16、) button 8 CHECK (program check) button 9 CLEAR (program clear) button 0 ENTER button ! AMS (AMS*) control ! PHONES Jack ! p (Stop) button ! P (Pause) button ! (Play) button ! Display ! MUSIC SCAN button ! PEAK SEARCH button ! EDIT/TIME button Play Mode buttons CONTINUE button SHUFFLE button PROGRAM

17、 button Numeric buttons 10 (over 10) button TIME button =/+ (AMS*) button FADER button *AMS is the abbreviation of Automatic Music Sensor. 123456789 0! ! ! 3 ! 7 9 8 ! ! 5 6 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. FRONT PANEL When removing the

18、 front panel assembly on electric power failure, first open the loading block by turning cam with a screwdriver as shown in the figure, next pull out the loading block with hand, and remove the loading panel as shown in the figure, then remove the front panel assembly. 3 Remove loading panel in the

19、arrow direction. 2-2. BASE UNIT BLOCK 1 Turn the cam to direction of arrow (Counter clockwise) by minus screw driver. 2 Take off the disc table. 3 Remove the yoke bracket. 4 Remove the MD (BU-5BD20) to the direction of arrow. 1Turn in the direction of the arrow. 2 Pull out disc table. bottom of chas

20、sis 1 cam 2 disc table 4 BU-5BD20 3 yoke bracket 7 SECTION 3 ELECTRICAL BLOCK CHECKING Note : 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more th

21、an 10M impedance. 4. Clean the objective lens using 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 test point TP (FE) on BD board. 2.Connect between test point TP (FEI) and TP (VC)

22、by lead wire. 3.Turn Power switch on. 4.Put disc (YEDS-18) in and turn Power switch on again and actuate the focus search. (Actuate the focus search when disc table is moving in and out.) 5. Check if the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level w

23、ithin 31 Vp-p. S-curve waveform 6. After check, remove the lead wire connected in step 2. Note : Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. Set sweep time as long as possible and set the brightness to obtain best waveform. RF Level Check Procedure

24、 : 1. Connect oscilloscope to test point TP (RF) on BD board. 2. Turn Power switch on. 3.Put disc (YEDS-18) in and playback. 4.Confirm that oscilloscope waveform is clear and check if RF signal level is correct or not. Note : A clear RF signal waveform means that the shape “ ” can be clearly disting

25、uished at the center of the waveform. RF signal waveform E-F Balance (1 Track Jump) Check Procedure : 1.Connect oscilloscope to test point TP (TE) on BD board . 2.Turn Power switch on. 3.Put disc (YEDS-18) in to play the number five track. 4.Press the “P (pause)” button. (Becomes the 1 track jump mo

26、de.) 5.Check the level B of the oscilloscopes waveform and the A (DC voltage) of the following : A/B100 = less than 20%. 1 track jump waveform RF PLL Free-run Frequency Check Procedure : 1. Connect frequency counter to test point (PLCK) with lead wire. 2. Turn Power switch on. 3. Confirm that readin

27、g on frequency counter is 4.3218MHz. BD board oscilloscope TP (FE) TP (VC) symmetry within 31 Vp-p A B BD board oscilloscope TP (RF) TP (VC) VOLT/DIV : 200mV TIME/DIV : 500nS level : 1.2 +0.25 Vp-p 0.20 BD board TP (TE) TP (VC) oscilloscope (DC range) Center of the waveform A (DC voltage) level : 1.

28、50.7Vp-psymmetry B frequency counter MAIN board TP (PLCK) 8 Adjustment Location : BD board BD board (conductor side) (FE) (FEI) (RF) (TE) (VC) 120 1011 IC103 (PLCK) IC101 9 SECTION 4 DIAGRAMS 4-1. IC PIN FUNCTIONS IC101 CXD2545Q (DIGITAL SERVO & DIGITAL SIGNAL PROCESSOR) Pin No.Pin NameI/OFunction 1

29、SRONOSled drive output (Not used.) 2SRDROSled drive output 3SFONOSled drive output (Not used.) 4TFDROTracking drive output 5TRONOTracking drive output (Not used.) 6TRDROTracking drive output 7TFONOTracking drive output (Not used.) 8FFDROFocus drive output 9FRONOFocus drive output (Not used.) 10FRDRO

30、Focus drive output 11FFONOFocus drive output (Not used.) 12VCOOOVCO output for analog EFM PLL. (Not used.) 13VCOIIVCO input for analog EFM PLL. (Ground) 14TESTITEST pin connected normally to Ground. 15DVSSDigital Ground 16TES2ITEST pin connected normally to Ground. 17TES3ITEST pin connected normally

31、 to Ground. 18PDOOCharge-pump output for analog EFM PLL. (Not used.) 19VPCOOCharge-pump output for variable pitch PLL. (Not used.) 20VCKIIClock input from variable pitch external VCO. (Ground) 21AVD2Analog power supply 22IGENIPower supply pin for operational amplifiers. 23AVS2Analog Ground 24ADIOI(N

32、ot used.) 25RFCO(Not used.) 26RFDCIRF signal input 27TEITracking error signal input 28SEISled error signal input 29FEIFocus error signal input 30VCICenter voltage input pin 31FILOOFilter output for master PLL. 32FILIIFilter input for master PLL. 33PCOOCharge-pump output for master PLL. 34CLTVIContro

33、l voltage input for master VCO. 35AVS1Analog Ground 36RFACIEFM signal input 37BIASIAsymmetry circuit constant current input 38ASYIIAsymmetry comparate voltage input 39ASYOOEFM full swing output 40AVD1Analog power supply 41DVDDDigital power supply 42ASYEIAsymmetry circuit ON/OFF 43PSSLIAudio data out

34、put mode selection input 44WDCKO48-bit slot D/A interface. Word clock 45LRCKO48-bit slot D/A interface. LR clock 46DATAODA 16 output when PSSL=1. 48-bit slot serial data when PSSL=0. 47BCLKODA 15 output when PSSL=1. 48-bit slot data when PSSL=0. 10 Pin No.Pin NameI/OFunction 4864DATAODA 14 output wh

35、en PSSL=1. 64-bit slot data when PSSL=0. (Not used.) 4964BCLKODA 13 output when PSSL=1. 64-bit slot data when PSSL=0. (Not used.) 5064LRCKODA 12 output when PSSL=1. 64-bit slot data when PSSL=0. (Not used.) 51GTOPODA 11 output when PSSL=1. GTOP output when PSSL=0. (Not used.) 52XUGFODA 10 output whe

36、n PSSL=1. XUGF output when PSSL=0. (Not used.) 53XPLCKODA 09 output when PSSL=1. XPLCK output when PSSL=0. 54GFSODA 08 output when PSSL=1. GFS output when PSSL=0. 55PFCKODA 07 output when PSSL=1. RFCK output when PSSL=0. 56C2POODA 06 output when PSSL=1. C2PO output when PSSL=0. (Not used.) 57XRAOFOD

37、A 05 output when PSSL=1. XRAOF output when PSSL=0. (Not used.) 58MNT3ODA 04 output when PSSL=1. MNT3 output when PSSL=0. 59MNT2ODA 03 output when PSSL=1. MNT2 output when PSSL=0. 60MNT1ODA 02 output when PSSL=1. MNT1 output when PSSL=0. 61MNT0ODA 01 output when PSSL=1. MNT0 output when PSSL=0. 62XTA

38、IIXtal oscillator circuit input 63XTAOOXtal oscillator circuit output (Not used.) 64XTSLIXtal selection input pin (Ground) 65DVSSDigital Ground 66FSTII2/3 divider input of pins 62 and 63. 67FSTOO2/3 divider output of pins 62 and 63. 68FSOFO(Not used.) 69C16MO16.9344MHz output (Not used.) 70MD2IDigit

39、al-out ON/OFF control pin (+5V) 71DOUTODigital-out output pin 72EMPHOPlayback disc output in emphasis mode. (Not used.) 73WFCKOWFCK output 74SCOROSub-code sync output 75SBSOOSub-P through Sub-W serial output (Not used.) 76EXCKIClock input for SBSO read-out. (Ground) 77SUBQOSub-Q 80-bit output 78SQCK

40、IClock input for SQSO read-out. 79MUTEIMuting selection pin 80SENSOSENS output 81XRSTISystem reset 82DIRCIUsed in 1-track jump mode (+5V) 83SCLKISENS serial data read-out clock 84DFSWIDFCT selection pin (Ground) 85ATSKIInput pin for anti-shock. (Ground) 86DATAISerial data input, supplied from CPU. 8

41、7XLATILatch input, supplied from CPU. 88CLOKISerial data transfer clock input, supplied from CPU. 89COUTONumbers of track counted signal output. (Not used.) 90DVDDDigital power supply 91MIRROMirror signal output 92DFCTODefect signal output 93FOKOFocus OK output 94FSWOOutput to select spindle motor o

42、utput filter. (Not used.) 95MONOOutput to control ON/OFF of spindle motor. (Not used.) 96MDPOOutput to control spindle motor servo 11 Pin No.Pin NameI/OFunction 97MDSOOutput to control spindle motor servo. (Not used.) 98LOCKOGFS is sampled by 460Hz. H when GFS is H. (Not used.) 99SSTPIInput signal t

43、o detect disc innermost track. 100SFDROSled drive output 12 IC501 CXP82612-021Q (MASTER CONTROL) Pin No.Pin NameI/OFunction 1TIMERConnected to +5V. 2RMIAudio bus input 3+5VConnected to +5V. 4-6Not used. (Open) 7PGMLOLatch signal output to digital filter (IC201). 8CLKOSerial clock output 9SENSEISENSE

44、 signal input 10DATAOSerial data output 11SQCKORead out clock output for subcode Q data. 12SUBQISubcode Q data input 13Not used. (Open) 14AMUTEOAnalog muting control signal output 15LDONOOptical pick-up laser diode control output 16XLTOSerial data latch signal output 17Not used. (Open) 18RV+Not used

45、. (Open) 19RV-Not used. (Open) 20LDOUTOLoading motor control signal output 21LDINILoading motor control signal input 22KEY0IKey input (S530) 23KEY1IKey input (S520-S527) 24KEY2IKey input (S501-S506) 25KEY3Connected to +5V. 26,27KEY4,KEY5IKey input (S531) 28ADJ/AFADJADJ/AFJ test pin 29IN/OUTSWILoadin

46、g IN/OUT switch input 30RSTIReset signal input 31EXTALIClock input (4MHz) 32XTALOClock output (4MHz) 33VSSGround 34-41Not used. (Open) 42-62S1-S21OFL segment output 63-701G-7GOFL grid output 71VFDP(-30V)-30V pin for FL display tube. 72VDD(+5V)+5V pin 73+5V+5V pin 74SEL1Connected to Ground. 75-77Connected to Ground. 78SCORIRead out timing signal input for subcode Q data. 79,80SEL2,SEL3Connected to +5V. 28 SECTION 5 EXPLODED VIEWS NOTE: The mechanical parts with no reference number in the exploded views are not supplied. Items marked “*” are not stocked since they