Sony-CDPD500-cd-sm 电路图 维修手册.pdf

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1、MICROFILM COMPACT DISC PLAYER Model Name Using Similar MechanismNEW CD Mechanism TypeCDM19G-5R Base Unit NameBU-5R Optical Pick-up NameKSS-213B/K-N US Model Canadian Model AEP Model UK Model SERVICE MANUAL CDP-D500 SPECIFICATIONS Continued on next page RadioFans.CN 收音机爱 好者资料库 2 Notes on chip compone

2、nt replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PROD- UCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments

3、or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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 SAFE OPERATION. REPLACE THESE COMPON

4、ENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT

5、. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. RadioFans.CN 收音机爱 好者资料库 3 SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to the cust

6、omer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed 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 r

7、eturn to chassis, must not exceed 0.5 mA (500 microampers.). Leak- age current can be measured 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

8、 Data Precision 245 digital multimeter is suitable for this job. 3.Measuring the voltage drop 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 examp

9、les of a pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground Fig. A.Using an AC voltmeter to check AC leakage. TABLE OF CONTENTS 1.SERVICING NO

10、TES.4 2.GENERAL.5 3.DISASSEMBLY. 13 4.TEST MODE. 15 5.ELECTRICAL ADJUSTMENTS. 16 6.DIAGRAMS 6-1.Block Diagram. 19 6-2.Printed Wiring Boards CD Section . 23 6-3.Schematic Diagram CD Section . 25 6-4.Printed Wiring Boards Main Section . 28 6-5.Schematic Diagram Main Section . 31 6-6.Schematic Diagram

11、Panel Section . 36 6-7.Printed Wiring Boards Panel Section . 41 6-8.IC Pin Function Description . 46 7.EXPLODED VIEWS. 49 8.ELECTRICAL PARTS LIST. 54 RadioFans.CN 收音机爱 好者资料库 4 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up bl

12、ock 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 printed matter which is included in the repair part

13、s. 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 block. Therefore, when checking the laser diode e

14、mission, ob- serve from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK 1.Make POWER switch on with no disc inserted and disc table closed. 2.Confirm that the following operation is performed while ob- serving the objective lens. Front Panel side 1Confirm t

15、hat laser beam spread. 2Up and down motion of the objective lens. (3 times) HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF Insert a tapering driver into the aperture of the unit bottom, and turn to the direction of arrow. * To close the disc tray, turn the driver in the reverse direction. 5 S

16、ECTION 2 GENERAL This section is extracted from instruction manual. 6 7 8 9 10 11 Playing CDs 12 13 Note: Follow the disassembly procedure in the numerical order given. CASE SECTION 3 DISASSEMBLY LOADING PANEL 1Insert a tarpering driver into the aperture of the unit bottom, and turn to the direction

17、 of arrow. 1three screws (M3 10) 2case 1three screws (M3 10) 1three screws (M3 10) 1two screws (M3 10) 3two screws (BVTP3 10) 4loading panel 2Pull the disc table 14 FRONT PANEL SECTION 3three screws (BVTT3 8) 4front panel 3four screws (BVTT3 8) 2connector (CN331) MECHANISM DECK 4mechanism deck 3four

18、 screws (BVTT3 8) 1flat wire (27 core) (CN501) 1flat wire (19 core) (CN401) 2connector (CN531) 15 SECTION 4 TEST MODE Key Check (tact switch) 1) Connect the test point TP (ADJ) on MAIN board to the ground with a lead wire on MAIN board. 2) Turn on the power with turning OFF the TIMER SW. “KEY TEST”

19、shall be shown. 3) When the TACT SW is pushed, the order of pushing is shown on digit 0 and 1. 4) It will count up until 34 which is the maximum key number. “END” will be shown after 34. (slide switch) Words as below shall be shown. CXD2545 Servo Check 1) Connect the test point TP (ADJ) on MAIN boar

20、d to the ground with a lead wire on MAIN board. 2) Turn on the power, tuning ON the TIMER SW. 3) Establish as below articles with the combination of TENKEY and TIMER SW. TENKEYMODE TIMER SW OFF3Tracking servo off 8Tracking servo on TIMER SW ON1S-cuve observe OFFON TIMER SWNULL (not shown)REPEAT REMO

21、TECONTINUE/Parallel ON PROGRAM SELECT SWPROGRAMSerial ON CONTINUE AUTO CUE/ NULL (not shown) A.CUE ON AUTO CUE PAUSE SWA.PAUSE ON AUTO PAUSE (JOG) When dial the VARI SPEED JOG/AMS dial, the value on digit 6 and 7 will be clocwise/rev clockwise. (shuttle) Is it turns to forward direction, calendar wi

22、ll show 123 and 4 and if turns to backward direction. Calendar will show 161718 and 19. EDP Bridge Check 1) Connect the test point TP (ADJ) on MAIN board to the ground with a lead wire on MAIN board. 2) Turn on the power, with turning ON the TIMER SW. 3) Elements next to digit/segment will turn on a

23、nd off mutu- ally. 4) When both sides elements turn on at the same time the grid is a bridge. 5) When the calendar does not work correctly, segment is a bridge. S-RAM Verify Check 1) Connect the test point TP (ADJ) on MAIN board to the ground with a lead wire on MAIN board. 2) Turn on the power, wit

24、h turning ON the TIMER SW and CUE SW. 3) Address (0 x80000 x9fef) will be written by -com on the digit 5 and 6, and they will be read by -com on the digit 8 and 9, then the value shall be shown on the digit 0 to 3. When the written value do not agree with the read value, “VERIFY ERROR” will be shown

25、. After that, it will show the position of address line and the data line which are cause of S-RAM bridge and a float. 16 SECTION 5 ELECTRICAL ADJUSTMENTS 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

26、) 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 fol- lowing checks. S-Curve Check Note: Try to measure several times to make sure that the rati

27、o of A:B or B:A is more than 10:7. Take sweep time as long as possible and light up the bright- ness to obtain best waveform. RF Level Check Procedure: 1.Connect the test point TP (ADJ) on MAIN board to the ground with a lead wire on MAIN board. 2.Connect oscilloscope to test point TP (FE) on BSL bo

28、ard. 3.Turned Power switch on to set ADJ mode by TIMER SW OFF. 4.Put disc (YEDS-18) in and turned Power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.) 5.TIMER SW ON. 6.Press the “1” button (s-cuve observe mode). 7.Check the oscilloscope

29、 waveform (S-curve) is symmetrical be- tween A and B. And confirm peak to peak level within 3 1 Vp-p. S-curve waveform Note: A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. RF signal waveform VOLT/DIV: 200 mV TIME/DIV: 500 ns level: 1.2

30、Vp-p +0.25 0.20 E-F Balance (1 Track Jump) Check E-F Balance Check + BSL board TP (FE) TP (VC) oscilloscope Procedure: 1.Connect oscilloscope to test point TP (RF) on BSL board. 2.Turned Power switch on. 3.Put disc (YEDS-18) in to play the number five track. 4.Confirm that oscilloscope waveform is c

31、lear and check RF sig- nal level is correct or not. + BSL board TP (RF) TP (VC) oscilloscope + BSL board TP (TE) TP (VC) oscilloscope Procedure: 1.Connect the test point TP (ADJ) on MAIN board on the ground with a lead wire on MAIN board. 2.Connect oscilloscope to test point TP (TE) on BSL board. 3.

32、Turn the Power switch on to set the ADJ mode. (TIMER SW OFF) 4.Put disc (YEDS-18) in to play the number five track. 5.Press the “3” button. (The tracking servo and the sledding servo are turned OFF.) Procedure: 1.Connect oscilloscope to test point TP (TE) on BSL board. 2.Turned Power switch on. 3.Pu

33、t disc (YEDS-18) in to play the number five track. 4.Press the “P (Pause)” button. (Becomes the 1 track jump mode) 5.Check the level B of the oscilloscopes waveform and the A (DC voltage) of the center of the Travers waveform. Confirm the following : A/B 100 = less than 6 (%) 1 track jump waveform +

34、 BSL board TP (TE) TP (VC) oscilloscope A B symmetry within 3 1 Vp-p Center of the waveform B level : 1.5 Vp-psymmetry A (DC voltage) 0V +1.5 0.5 17 6.Check the level B of the oscilloscopes waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following: A/B 100 = less

35、than 6 (%) RF PLL Free-run Frequency Check Procedure: 1.Connect frequency counter to test point (XPLCK) with a lead wire. Center of the waveform B level : 1.5 Vp-p A (DC voltage) 0V Traverse waveform +1.5 0.5 7.Press the “8” button. (The tracking servo and sledding servo are turned ON.) Confirm the

36、C (DC voltage) is almost equal to the A (DC voltage) is step 6. Tracking servo Sledding servo OFF C (DC voltage)0V Traverse waveform Tracking servo Sledding servo ON 8.Disconnect the lead wire of TP (ADJ) connected in step 1. 2.Turned Power switch on. 3.Put the disc (YEDS-18) in to play the number f

37、ive track. Confirm that reading on frequency counter is 4.3218 MHz. Balance Level Adjustment (Generally it does not need to adjust because it has alredy adjusted before shipping.) 1.Turn on the disc (YEDS-18) and play the number 2 track (1 kHz 0 dBs) 2.Connect level meter to BALANCE OUT (J304) 3.Adj

38、ustment level BALANCE OUT: +24 dBs RV101 (L-CH) RV201 (R-CH) + frequency counter MAIN board TP (XPLCK) 18 MAIN BOARD Component side IC21 IC31 TP (VC) TP (RF) TP (FE) TP (TE) M102 CN01 BSL BOARD Side B TP (VC) TP (TE1 ) TP (FE1) TP (XPLCK) IC401 IC305 IC304 IC303 IC302 IC301 IC601 C301 C302 TP (ADJ)

39、R500 RV101 BALANCE LEVEL (L-CH) RV201 BALANCE LEVEL (R-CH) 22 Circuit Boards Location BSL board LOADING board H.P. AMP board SLIDE SW board PANEL board JOG SHUTTLE board MAIN board XLR board I/O board AC SW board ENC board 46 1XTALO Clock (19.6608 MHz) 2EXTALI 3MD1IMode select 4MD0IMode select 5NMII

40、Connected ground 6VDD+5V power supply 7STBYIConnected VDD (+5V) 8VSSGround 9-11DIN1-DIN3IParallel remote control input 12RM MODEIParallel remote control mode select 13CTSISerial remote control enable transmitter 14RTSOSerial remote control enable receive 15Not used (open) 16SYNC SWIEXT SYNC ON/OFF S

41、WITCH detection 17TXDOSerial remote control output 18RXDISerial remote control input 19EXWARDIEXT SYNC frequency detection 20V/S SELOVARI SPEED and EXT SYNC filter select 21SUBQISubcode Q data input from main -COM 22SQCKISubcode Q clock input from main -COM 23SCORISubcode Q interrupt input from DSP

42、24DATA1OData output to main -COM 25H8 CLKIClock input from main -COM 26DATA 0IData input from main -COM 27ASOAddress strobe of S-RAM 28WROWrite enable output 29RDORead enable output 30WAITIConnected ground 31VDD+5V power supply 32-34Not used (open) 35-39A12-A18OS-RAM address appoint port 40VSSGround

43、 41-48A7-A0OS-RAM address appoint port 49-56D0-D7I/OS-RAM data read and write port 57SCLKOCD text data clock output to S-RAM 58SRDTICD text data input from S-RAM 59DQSTICD text interrupt input from S-RAM 60, 61DIN5, DIN4OParallel remote control output 62MODE 0IMove mode select input 63MODE 1IMove mo

44、de select input 64XRSTIReset input Pin No.Pin NameI/OFunction 6-8.IC PIN FUNCTION DESCRIPTION MAIN BOARD IC501 HD6473238F-TTX1025 (SUB CONTROL) 47 Pin No.Pin NameI/OFunction 1ONot used (open) 2OPull up terminal 3ONot used (open) 4RMIRemote receive input 5ONot used (open) 6LD INOLoad in signal output

45、 7LD OUTOLoad out signal output 8H28OData output to sub -COM 9H32IData input from sub -COM 10CLKOSerial clock output to DSP. DIGFIL 11SENSISens input from DSP 12DATAOSerial data output to DSP. DIGFIL 13SQCKOSubcode Q read out clock output 14SUBQISubcode Q data input from DSP 15A MUTEOMute switch out

46、put (“H” mute ON) 16SCLKONot used (open) 17XLATOSerial data latch output to DSP 18LD ONOLaser diode ON output 19, 20NC2, NC1Not used (open) 21D/FLTOLatch clock output to DIGFIL 22H31OClock output to sub -COM 23ONot used (open) 24VSENC2IVARI SPEED rotary encoder input 25VSENC 1IVARI SPEED rotary enco

47、der input 26, 27JOG1, JOG2IData rotary encoder input 28-31SHUT1-SHUT4IJog shuttle input 32TESTITest terminal 33TRYILoading IN/OUT switch input 34-37K6-K3IKey input 38XRSTIReset input 39EXTALI Clock (4 MHz) 40XTALO 41VSSGround 42, 43TX, TEXONot used (open) 44, 45K2, K3IKey input 46AVREFConnected +5V power supply 47AVSSGround 48REHEARSALOREHEASAL LED drive output 49VARI SPEEDOVARI SPEED LED drive output 50-75S26-S1OFL display segment outp