Sony cdpm11.pdf

《Sony cdpm11.pdf》由会员分享，可在线阅读，更多相关《Sony cdpm11.pdf（27页珍藏版）》请在收音机爱好者资料库上搜索。

1、CDP-MII/M12/M21/M41 SERVICE MANUAL Photo : CDP-M21 SPECIFICATIONS Compact disc player Frequency response Signal to noise ratio Dynamic range Harmonic distortion Channel separation Outputs LINE OUT (phono jacks) PHONE S(for CDP-195) HEADPHONES (for COP-M1 1) (stereo phone jack) General Power requirem

2、ents 2 Hz - 20 kHz + 0.5 dB More than 100 dB More than 97 dB Less than 0.005% More than 95 dB Output level 2 V (at 50 kiiohms) Load impedance over 10 kilohms Output level max. 10 mW Load impedance 32 ohms Model for Continental Europe (CDP-M11,M12,M21) 220-230V AC, 50/60Hz Model for the United Kingdo

3、m (CDP-M21,M41) 240V AC, 50/60Hz Power 12W consumption Dimensions (approx. , including Projections) 35595x305 mm (w/h/d) (14x33/4x1218 inches) Weight (approx.) 3.2kg (7 Ibs 1 02) MICROFILM AEP Model UK Model E Model Australian Model Model Name Using Similar Mechanism | CDP-291/391 CD Mechanism Type

4、CDM14-5BD1 Optical Pick-Up Block Type BU-5BD1 Supplied accessories Audio cord 1 (2 phono plugs - 2 phono plugs) Design and specifications subject to change without notice. For the United Kingdom and European countries CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT This Compact Disc p

5、layer is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT Iabel isJocated on the rear exterior. COMPACT DISC PLAYER SON Y. CDP-M11/M12/M21/M41 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK AX OR DOTTED LINE WITH MARK AX ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIS

6、T ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to follow carefully the instructions belo

7、w when servicing. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown

8、 because of the potential difference generated by the charged electrostatic load, etc. on 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

9、and should be handled with care, Laser Diode Properties Material: GaAlAs Wavelength: 780nm Emission Duration: continuous e Laser Output: max.44.6.W* * This output is the value measured at a distance of about 200mm from the objective lens surface on the Optical Pick-up Block. During service, do not t

10、ake the Optical Pick-up Block apart, and do not adjust the APC circuit. If there is a breakdown in the APC circuit (including laser diode), replace the entire Optical Pick- up Block (including APC borad). TABLE OF CONTENTS Section Title Page 1. GENERAL wie seccccstssersccnccnccenemsnsnecsconsonsonse

11、ns 4 41-1. Location of Controls . ce eescsseseeseeeesenenee 4 1-2 Pir) FUNCTION ou. eceece coset neeeeseneeeneneesnneeee 5 2. ELECTRICAL BLOCK CHECKING .00 7 3. DISASSEMBLY .0.cccessesccsssececssnncnensccnneesessns 9 4. DIAGRAMS. .u.csscscecesesseesecnereeeenessneensnsnonnnsees 10 Section 4-1. Block

12、 Diagrams 4-2. Waveforms 4-3. Printed Wiring Boards .c:seseeseeereseenes 14 4-4. Schematic diaGram .csesecereeeeeseeereereeasees 17 4-5. Semiconductor Lead Layout .-:seseee 21 4-6. IC Block Diagrams ou. esceeesereernetetenetenenenes 22 EXPLODED VIEWS. .:csssssssecsseenenesssersenes 24 ELECTRICAL PAR

13、TS LIST .:cssssesnsesssssseses 27 CDP-M11/M12/M21/M41 MODEL IDENTIFICATION SPECIFICATION LABEL - ree CDP-M11 CDP-M12 CDP-M12 CDP-M21 CDP-M21 CDP-M41 SONY. MODEL NO. VILLI MMMM SONY. MODEL NO. LLLLLLD SERIAL NO. MADE IN FRANCE SERIAL NO. MADE !N JAPAN AEP MODEL: AC220-230V, 50/60Hz AEP MODEL: AC220-2

14、30V, 50/60Hz Australian MODEL: AC240V, 50/60Hz UK MODEL: AC240V, 50/60Hz E, Saudi Arabian MODEL: AC110-120, 220-240V, 50/60Hz, 12W SAFETY CHECK-OUT After correcting the original service problem, perform the 3. Measuring the voltage drop across a resistor by means of a following safety check before r

15、eleasing the set to the customer: VOM or battery-operated AC voltmeter. The “limit indica- Check the antenna terminals, metal trim, metallized knobs, screws, tion is 0.75V, so analog meters must have an accurate low- and all other exposed metal parts for AC leakage. Check leakage as voltage scale. T

16、he Simpson 250 and Sanwa SH-(3Trd are described below. examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are LEAKAGE TEST suitable. (See Fig.A) The AC leakage from any exposed metal part to earth ground To Exposed Metal and from all e

17、xposed metal parts to any exposed metal part having Parts on Set a return to chassis, must not exceed 0.5mA (500 microampers). Leakage 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

18、 use these | AC voltmeter instruments. (0.75 V) 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 2 Earth Ground Fig. A. Using an AC voltmeter to check AC leakige. CDP-M11/M12/M21/M41 SECTION 1 GENERAL 1-1. LOCATION OF CONTROLS This section is

19、 extracted from instruction manual. 24 (23) 2221 (20) 13145 = 14 CDP-M11 POWER switch 2 Disc tray 3 Remote sensor 4 Display window 5 PROGRAM button 6 SHUFFLE button CONTINUE button TIME button 9 CHECK (program check) button Numeric buttons CLEAR (program clear) button 12 (over 12) button MUSIC SCAN

20、button 14 P.SEARCH button PHONE LEVEL control 46 FADER button HEADPHONES jack (EXCEPT CDP-M12) REPEAT button 49 EDIT/TIME FADE button 20 Me PPI (AMS*/RMS*/manual search ) buttons 21 mi (stop) button 22 B19 (pause) button 23 B (play) button 24 4 (open/close) button CDP-M11/M12/M21/M41 1-2. PIN FUNCTI

21、ON OF IC101 AND IC401 1C101 (CXA1372Q) PIN FUNCTION Pin No. Pin Name VC Description GND when two (+) dual power supplies are in use, or the center voltage (2.5V) when a single power supply is in use. 2 Time constants for gain switching in normal mode/down mode and for focus gain are 3 I |conncted be

22、tween the FGD and FS3 pins. 4 FLB I | The capacitor for low frequency boost in the focus servo loop is connected. 5 FEO O | Focus drive output. 6 FE I |Inverted input to focus amplifier. 7 SRCH I | Time constants to generate the focus search waveform are connected. 8 TGU I_| Time constants for gain

23、switching in normal mode/up mode and for tracking gain are 9 TG2 Ij connected between TGU pin and TG2 pin. Analog power supply (5V when + dual power supplies are in use, 5V when a single power supply is in use.) Tracking drive output. Inverted input to tracking amplifier. Non-inverted input to sled

24、amplifier. Sled drive output. Non-inverted input to sled amplifier. The 610k2 phase compensator resistor is connected to this pin. The current setting resistor is connected to this pin. me Hie OR HO The limit switch is connected to this pin. Analog power supply (5V when + dual power supplies are in

25、use, or GND when a single power supply is in use.) Direct control pin. Sled run-away prevention circuit operates when this signal is L”. Serial data transfer clock input that is supplied from CPU (or DSP). Latch input from CPU (or DSP). Serial data input from CPU (or DSP). System reset. ”L” to reset

26、. Output to tracking counter. SENS output. Digital ground (GND). (GND when + dual power supplies are in use. GND when a single power supply is in use.) CO O me me me Mirror output. Defect output. ”H” when defective. Auto-assymmetry control input. EFM comparator output. Focus OK. Defect-bottom-hold i

27、nput (inout by capacitive coupling). Defect-bottom-hold output. or o0KF/0 0 Digital power supply. (+5V when + dual power supplies in use. +5V when a single power supply is in use.) The defect-bottom-hold capacitor is connrcted to this pin. The mirror hold capacitor is connected to this pin. RF signa

28、l input (input by capacitive coupling). RF signal input (input by DC coupling). Digital power supply (5V when + dual power supplies are in use. GND when a single power supply is in use.) Tracking zero-cross comparator input. Tracking error input. The defect prevention hold capacitor is connected to

29、this pin. Anti-shock input. Focus zero-cross comparator input. Focus error input. The defect prevention hold capactior is connected to this pin. CDP-M11/M12/M21/M41 1C401 (CXP50112-097Q) PIN FUNCTION Not used (open). Segment output to FL tube. Common output to FL tube. Subcode sync signal SO + S1 de

30、tection input from IC301 (CXD2500AQ). Not used (open). +5V Reset input. +5V Power voltage terminal (+5V). Key A/D input. Not used (Ground). Auto play select input (Auto play ”L”). Not used (Ground). Serial data transfer clock output to C301 (CXD2500AQ). Serial data output to IC301 (CXD2500AQ). Not u

31、sed (Ground). Focus OK signal input from IC101 (CXA1372Q). Frame sync signal clock status input from IC301 (CXD2500AQ). Sub code (Q data) serial input from 1C301 (CXD2500AQ). Sub code (Q data) readout clock output to 1C301 (CXD2500AQ). Serial data latch output. Attenuate data latch clock output to 1

32、C302 (CXD2554P). Laser diode ON/OFF select output of optical pick-up. Muting output for 1C301 (CXD2500AQ) and Q344 (25C3399). Muting on by ”H”, Muting off by L”. Not used (+5V) Deffect circuit ON/OFF select output to C101 (CXA1372Q). Not used (open). SENS signal input from 1C301 (CXD2500AQ). Remote

33、control signal input. oOo XLT PRGL LDON 54 AMUT 55-58 |BO-B3 59 DEFECT SW 60 ooo ojornr- io SENSE RMC 63 INSW 64 OUTSW ADJ AFADJ Input for loading out switch. Output for loading in switch. Tset mode input. GFS check will not activate by ”L”. Test mode input. All test operation will be activate by ”L

34、” mode when power on. ooo n ttn 67 LODIN Output for turn the loading motor to loading. 68 LODOUT Output for turn the loading motor to un loading. 69 LED Output for motor volume LED lighting. Vss XTAL 73 +5V - EXTAL +5V Not used (open). Ground. Clock output. +5V Clock input. (4MHz) +5V Power voltage

35、30V for built in FL tube controller. Not used (open). Not used (open). 79 VDL DOWN VOL UP Output for motor volume down. (This set is not used). Output for motor volume up. (This set is not used). SECTION 2 ELECTRICAL BLOCK CHECKING Note : 1. CD Block basically constructed to operate with- out adjust

36、ment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use the oscilloscope with more than 10M2 im- pedance. 4. Clean an object lens by an applicator with neutral detergent when the signal level is low than specified value with the followin

37、g checks. S Curve Check oscilloscope BD board iE | TP (FEO) ow;Lo TP(VC) owlo- Procedure : 1. Connect oscilloscope to test point TP (FEO) on BD board. 2. Connect between test point TP (FES) and TP (VC) by lead wire. 3. Turned Power switch on and actuate the focus serch. (actuate the focus serch when

38、 disc table is moving in and out.) 4. Check the oscilloscope waveform (S curve) is symmetrical between A and B. And confirm peak to peak level within 341Vp-p. S curve waveform symmetry within 3+1Vp-p 5. After check, remove the lead wire connected in step 2. Note: -Try to mesure several times to make

39、 sure that the ratio of A: B or B: A is more than 10: 7. * Take sweep time as long as possible and light up the brightness to obtain best waveform. RF Level Check oscilloscope O) on TP (RFO) OoF TP (VC) Ow0- BD board Procedure : 1. Connect oscilloscope to test point TP (RFO) on BD board. 2. Turn Pow

40、er switch on. Put disc (YEDS-18) in and playback. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. Note: Clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the wave- form. VOLT/DIV : 200mV ign RF signal waveform T

41、IME/DIV : 500nS VAAAKAAAKAAAA) WR NH AAA level : +0.2 1.24 Vp-p E-F Balance Check oscilloscope BD board oS) TP (TEO) TP (VC) aay bata O=t-0 - Procedure : 1. Connect test point TP (ADJ) to ground and TP (TES) to TP (VC) with lead wire. 2. Connect oscilloscope to test point TP (TEO) on BD board. Turn

42、Power switch on. Put disc (YEDS-18) in and playback. Confirm that the osilloscope waveform is sym- metrical on the top and bottom in relation to OV, and check this level. Traverse oscilloscope symmetry level: 2+1Vp-p 6. Remove the lead wire connected in step 1. | CDP-M11/M12/M21/M41 CDP-M11/M12/M21/

43、M41 RF PLL Free-run Frequency Check BD BOARD | - Component Side - Procedure : 1. Connect frequency counter to test point (PLCK) with lead wire. Miss bese frequency counter os Co) TP (PLCK) O=t 0+ 2. Turn Power switch on. Confirm that reading on frequency counter is 4. 3218MHz. Focus/Tracking Gain Th

44、is gain has a margin, so even if it is slightly off. There is no problem. Therefore, do not perform, this adjustment. Please note that it should be fixed to mechanical cen- ter position when you moved and do not know original position. Adjustment Location ; MAIN BOARD) Component Side C301 ( conducto

45、r side ) 1302 TP as ( PLCK ) (EFM ) _* ty TP 41! CDP-M11/M12/M21/M41 CDP-M11/M12/M21/M41 SECTION 3 SECTION 4 DISASSEMBLY OF BASEUNIT DIAGRAMS 4-1. BLOCK DIAGRAM Note : LXAAKAAAAKAKKD AWWA Follow the disassembly procedure in the nomerical i XRAY, |13Ve 444 order given if A 1c104 ee aoe ere TP (RFO):

46、PLAY mode FOCUS/TRACKING/SLED.SERVO (25) Turn the cam to the direction of arrow (Counter (Ic101 ) EFM COMPARATOR : TIL (25) ( clock wise) by minus screw driver. Psens Take off the disc table. Splint 2.5v Z TTL eo APPROX : 100mVp- MIRROR Remove the yoke bracket. epee 100nVpp 49 Remove the MD (BU-5BD1

47、) to the direction of arrow. 52) RF 4 sare ee a: =p (erent Ts “oon Le E PROCESSOR K_| | KLT meal ae SSTOP (4p i N y BU-5BD1 Te bracket (3) APPROX : 500mVp-p TP (FEO) PLAY mode SWITCH FOCUS eee DRIVE (28) LASER PHOTO f DIODE DIODE disc table 1102 FOCUS/TRACKING COIL DRIVE SPINDLE/SLED MOTOR DAIVE M10

48、14 M102 SLED MOTOR SPINDLE MOTOR +-+-7. 5ysec 1301 PLAY mode | CDP-Mii/Mi2Z/M21/m41 CDP-M1t/Mi2/M21/MA1 | 1/M12/M21/M41 CDP-M11/M12/M21/M41 IC305 PHONE LEVEL CDP-M11/M21/M414 SOR RRO DORE ER EOE wE EEE wes CemmEwEes emewwe sr ewwene es: D/A CONVERTER 10306 AUDIO AMP 16307 IC304 ay 3 AUDIO AMP AST G9 DIGITAL SIGNAL a! 3 : /CLV SERVO “aes 27 2 ) 1 | J384 TIL. -p. 6OUt CNIN xrst (70) DIGI