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Sony CDP-XB720, Service Manual

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MICROFILM

CDP-XB720/XB720E

AEP Model

CDP-XB720

UK Model

CDP-XB720E

SPECIFICATIONS

SERVICE MANUAL

COMPACT DISC PLAYER

Model Name Using Similar Mechanism

CDP-XE520

CD Mechanism Type

CDM14FLS-5BD25

Base Unit Type

BU-5BD25

Optical Pick-up Type

KSS-213BA/F-NP

Photo: CDP-XB720

Summary of Contents for CDP-XB720

Page 1: ...del CDP XB720 UK Model CDP XB720E SPECIFICATIONS SERVICE MANUAL COMPACT DISC PLAYER Model Name Using Similar Mechanism CDP XE520 CD Mechanism Type CDM14FLS 5BD25 Base Unit Type BU 5BD25 Optical Pick up Type KSS 213BA F NP Photo CDP XB720 ...

Page 2: ...g the limit for Class 1 This appliance is classified as a CLASS 1 LASER product The CLASS 1 LASER PROD UCT MARKING is located on the rear exterior The following caution label is located inside of the unit PARTS No MODEL MODEL IDENTIFICATION BACK PANEL TABLE OF CONTENTS 1 SERVICING NOTE 3 2 GENERAL 6 3 DISASSEMBLY 3 1 Front Panel 7 3 2 Base Unit BU 5BD25 7 4 TEST MODE 8 5 ELECTRICAL BLOCK CHECKING ...

Page 3: ...n 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 this model is concentrated so as to be focused on the disc reflective surface by the objective lens in th...

Page 4: ...h emphasis L R 400Hz 7kHz 4 1 0dB L R 400Hz 7kHz 4 1 10dB L R 19kHz 20kHz 1 1 0dB L R 19kHz 20kHz 1 1 10dB L R 100Hz 0dB L 1kHz 0dB L 10kHz 0dB L 20kHz 0dB L 100Hz 0dB R 1kHz 0dB R 10kHz 0dB R 20kHz 0dB R 100Hz Squer Wave L R 1kHz Squer Wave L R 1kHz w emphasis 0 37dB L R 5kHz w emphasis 4 53dB L R 16kHz w emphasis 9 04dB L R NOTE The contents of Track No 1 to 41 are the same as those of the curre...

Page 5: ... same 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 to 99 1 4 1 2 3 4 1 4 1 2 3 4 Table 2 CD TEXT TEST DISC Recorded Contents and Display In this unit some special characters cannot be displayed This is no a fault 21h to 27h 1kHz 0dB L R 28h to 2Fh 0 1 2 3 4 5 6 7 30h to 37h 8 9 38h to 3Fh A B C D E F G 40h to 47h H I J K L M N O 48h to 4Fh P Q R S T U VW 50h to 57h...

Page 6: ...LEAR button 11 AMS knob PUSH ENTER 12 p stop button 13 P pause button 14 play button 15 OPEN CLOSE button 16 Window display 17 LANGUAGE button 18 MUSIC SCAN button 19 AUTO SPACE button 20 PEAK SEARCH button 21 FILTER STANDARD 1 2 3 switch 22 PHONE jack AMS is the abbreviation for Automatic Music Sensor SECTION 2 GENERAL Front Panel 2 3 4 5 6 7 8 9 10 1 11 12 15 14 13 16 17 18 19 20 21 22 ...

Page 7: ...igure shows and the loading part will be moved Then pull out the loading part by your hand to remove the loading panel as the figure shows After that take out the front panel block 3 2 BASE UNIT BU 5BD25 Tapering driver Loading part Loading panel 4 Remove the Base unit BU 5BD25 to the direction of arrow 1 Turn the cam to the direction of arrow counter clock wise by tapering driver 2 Take off the d...

Page 8: ...when the whole display is lit the display will change to partial lighting 2 When the button is pressed the display will light up as follows REMOCON PLAY Partial lighting 5 When the OPEN CLOSE button is pressed all will light up again Key check All buttons have corresponding button numbers When a button is pressed the counter will count up and display the button s num ber However the counter will o...

Page 9: ...dly Aging method 1 When using the aging mode remote controller J 2501 123 A 1 Press the 1 u button and turn ON the power 2 Set the disc on the tray 3 Press the AGING START button of the aging remote controller 4 Aging starts and the message shown in Fig 1 is displayed on the fluorescent display tube 5 To end press the 1 u button Aging method 2 When no aging mode remote controller 1 Press the 1 u b...

Page 10: ...FE on BD board 2 Connect between test point TP FEI and TP VC by lead wire 3 Connect both ends of TP R151 of the BD board to the lead wire 4 Turn ON the power 5 Put disc YEDS 18 in and actuate the focus search actuate the focus search when disc table is moving in and out 6 Check the oscilloscope waveform S curve is symmetrical between A and B And confirm peak to peak level within 3 8 1 Vp p 7 After...

Page 11: ...irm the following A B x 100 less than 22 Traverse waveform oscilloscope BD board TP TE TP VC BD BOARD Side A Adjustment Location MAIN BOARD Component Side 0V level 1 3 0 6 Vp p A DC voltage Center of the waveform B 7 Press the 9 button The tracking servo and sledding servo are turned ON Confirm the C DC voltage is almost equal to the A DC voltage is step 6 Traverse waveform 0V C DC voltage Trackin...

Page 12: ... 12 SECTION 6 DIAGRAMS 6 1 CIRCUIT BOARDS LOCATION BD board MAIN board LOADING board PANEL board DF board HP board AEP SW board POWER board ...

Page 13: ...erances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path J CD c digital out For printed wiring boards Note X parts extracted from the component side Y parts extracted from the conductor side p parts mounted on the conductor side Through hole b Pattern from the side which enables seeing The ot...

Page 14: ...301 128FSO 7 IC301 º 64FSO IC301 XOUT 8 IC301 2 BCK I 9 3 9Vp p 33 8MHz 1 2Vp p PLAY 2 5V APPROX 500mVp p PLAY 2 5V APPROX 200m Vp p PLAY 4 7 Vp p 5 64 MHz 5 3 Vp p 11 28 MHz 5 5 Vp p 2 82 MHz 1 3 Vp p 45 MHz 5 3 Vp p 2 1 MHz º IC301 1 INVO IC501 ª EXTAL 4 1 Vp p 16 9 MHz 3 9 Vp p 8 MHz ...

Page 15: ... 15 CDP XB720 XB720E 6 2 PRINTED WIRING BOARD BD SECTION See page 12 for Circuit Boards Location Ref No Location Semiconductor Location IC102 B 2 Q101 C 3 ...

Page 16: ... 16 Ref No Location Semiconductor Location IC101 C 2 IC103 C 1 Page 19 ...

Page 17: ... 17 18 CDP XB720 XB720E 6 3 SCHEMATIC DIAGRAM BD SECTION See page 14 for Waveforms See page 30 for IC Pin Functions See page 34 for IC Block Diagrams Page 21 ...

Page 18: ...ation D631 E 2 D651 A 6 D679 D 6 D680 D 6 D681 E 6 D682 E 6 D691 E 6 D692 E 6 D721 E 8 IC301 B 3 IC401 B 5 IC451 A 5 IC631 E 2 IC651 A 7 IC652 B 7 IC653 B 5 IC654 D 5 IC655 C 5 IC670 C 3 IC701 C 8 IC751 D 9 IC781 D 8 Q681 D 6 Q682 B 8 Q683 B 8 Q691 D 6 Q692 A 8 Q693 A 8 Q701 C 7 Q702 C 7 Q721 E 8 Page 24 Page 29 Page 16 Page 28 Page 28 ...

Page 19: ... 21 22 CDP XB720 XB720E 6 5 SCHEMATIC DIAGRAM MAIN SECTION See page 36 for IC Block Diagrams Page 29 Page 17 Page 26 Page 27 Page 27 ...

Page 20: ... 23 24 CDP XB720 XB720E 6 6 PRINTED WIXRING BOARD DISPLAY SECTION See page 12 for Circuit Boards Location Ref No Location Semiconductor Location IC501 A 7 IC502 A 3 Q501 A 6 Q502 A 6 Page 21 ...

Page 21: ... 25 26 CDP XB720 XB720E 6 7 SCHEMATIC DIAGRAM DISPLAY SECTION See page 32 for IC Pin Functions Page 21 ...

Page 22: ...6 8 SCHEMATIC DIAGRAM POWER HP SECTION 27 CDP XB720 XB720E Page 22 Page 22 ...

Page 23: ... 28 6 9 PRINTED WIRING BOARD POWER HP SECTION See page 12 for Circuit Boards Location Page 20 Page 20 ...

Page 24: ...DING MOTOR SECTION See page 12 for Circuit Boards Location Page 21 09 12 21 S152 LOAD IN S151 LOAD OUT CN151 1 5 M151 LOADING MOTOR M LOADING BOARD 1 6 4 5 7 2 1 Page 19 09 6 10 SCHEMATIC DIAGRAM LOADING MOTOR SECTION CDP XB720 XB720E ...

Page 25: ... pin for anti shock Connected to ground WFCK output Not used Not used Not used Not used Not used Sub code sync output 4 2336 MHz output Not used Word clock output ƒ 2Fs Digital ground Numbers of track counted signal input output Not used Mirror signal input output Defect signal input output Focus OK input output Spindle motor external control input Connected to ground GFS is sampled by 460 Hz H wh...

Page 26: ...harge pump output for master PLL Analog power supply Asymmetry circuit constant current input VCO2 control voltage input for wide band EFM PLL Connected to VDD VCO2 oscillator input output for wide band EFM PLL Not used Charge pump output for wide band EFM PLL Not used Digital power supply Asymmetry circuit ON OFF input L OFF H ON Connected to VDD Digital out ON OFF control input Connected to VDD ...

Page 27: ...output 20 BUSIN I CONTROL A1 receive input 21 SENSOR SW Not used Open 22 CLK O Serial clock output 23 LDON O Optical pick up laser diode control output 24 DATA O Serial data output 25 SQCK O Subcode Q data readout clock output 26 SUBQ I Subcode Q data input 27 5V Power supply 5V 28 AVREF I Analog reference voltage input 29 KEY 0 I Key input 30 KEY 1 I Key input 31 KEY 2 I Key input 32 FILTER SW Co...

Page 28: ... voltage 30V 46 XSEL O Not used 47 REINIT Not used 48 LP CONTROL O LP control hold output 49 B MUTE O Line mute control output 50 to 66 OPEN Not used 67 to 87 S21 to S1 O FL segment signal output 88 1G O FL grid signal output 89 VDD 5V Power supply 5V 90 to 100 2G to 12G O FL grid signal output Abbreviation FL Fluorescent indicator tube ...

Page 29: ...Digital CLV MIRR DFCT FOK SERVO Interface CPU Interface OPAmp Analog SW A D Converter PWM GENERATOR FOCUS SERVO SERVO DSP SLED SERVO TRACKING SERVO TRACKING PWM GENERATOR SLED PWM GENERATOR FORCUS PWM GENERATOR 45 SIGNAL PROCESSOR BLOCK SERVO BLOCK MUTE XRST DVDD0 DATA XLAT CLOCK SENS SCLK ATSK WFCK XUGF XPCK GFS SCOR WDCK C4M DVSS0 COUT MIRR V2PO DFCT FOK PWMI LOCK MDP SSTP FETO DVDD1 SFDR SRDR T...

Page 30: ... R IN 18 CAPA IN 3 17 CH3 OUT R 16 CH3 OUT F 15 MUTE LEVEL SHIFT INTERFACE BUFF BUFF BUFF BUFF R F R F BUFF INTERFACE INTERFACE F F R R MUTE 11 12 10 VC VC VC VC VC VC VC VCC VCC RF SUMMING AMP RF_EQ_AMP ERROR AMP FOCUS TRACKING ERROR AMP VC BUFFER VCC VCC VC VC VC VC VEE VEE VEE VEE VEE VREF 13 14 15 6 5 1 2 3 4 7 8 9 16 19 20 21 22 23 24 18 17 HOLD LD PD A B C D VEE F E VC AGCVTH AGCCONT VCC LC ...

Page 31: ...IN DVSS1 DVDD1 64FSI NU XIN XVSS AVDDR2 AVSSR1 AVDDR1 64FSO DVSS2 LVCKO CKVdd 256FSO DVDD2 R1 R1 R2 R2 AVSSR2 INVO BCKI DATA1 LRCKI INIT ATT SHIFT LATCH SYSM NU NU NU DVSS1 DVDD1 XVDD AVDDL2 L2 L2 AVSSL2 AVSSL1 L1 L1 AVDDL1 SYNC VSUB CKCTL MUTE XVDD S P ATT MODE ATT REGISTER D F TIMNG CIRCUIT 0 DETECT MUTE CIRCUIT 1024Fs CLOCK BUFFER Buffer Buffer Buffer Buffer PLM R2 PLM R1 Buffer Buffer Buffer B...

Page 32: ...UK 16 3 704 515 21 SCREW BV RING AEP 16 3 704 515 41 SCREW BV RING UK 17 4 984 485 01 CUSHION FOOT 18 3 703 685 21 SCREW BV 3X8 AEP 18 4 929 074 01 SCREW 3X8 UK 19 4 974 510 01 SCREW BV 3X8 B UK 19 7 685 646 79 SCREW BVTP 3X8 TYPE2 N S AEP T601 1 431 715 11 TRANSFORMER POWER 1 4 997 218 01 PANEL LOADING 2 X 4949 523 1 FOOT ASSY F50180S 3 4 970 124 01 CUSHION F50180S 4 1 668 722 11 POWER BOARD 5 4 ...

Page 33: ...E FLAT TYPE 25 CORE 70 3 354 981 11 SPRING SUS RING FL501 1 517 740 11 INDICATOR TUBE FLUORESCENT 51 4 942 568 41 EMBLEM NO 5 SONY 52 4 998 790 01 KNOB POWER 53 1 668 724 11 SW BOARD 54 4 951 620 01 SCREW 2 6X8 BVTP 55 1 668 725 11 HP BOARD AEP 56 4 950 189 01 KNOB A VOL 57 4 997 219 01 PLATE INDICATION 58 4 997 216 01 BASE M2 PANEL 59 4 997 215 01 PANEL FRONT AEP 59 4 997 215 11 PANEL FRONT UK 60...

Page 34: ...33 107 01 GEAR PL 107 4 927 651 01 PULLEY S 108 4 933 109 01 CAM 109 1 645 721 11 LOADING BOARD 110 4 933 134 01 SCREW PTPWH M2 6X6 111 4 959 996 01 SPRING 932 COMPRESSION 112 4 933 129 01 HOLDER BU 113 4 933 111 11 CHASSIS MD 114 4 917 583 21 BRACKET YOKE 115 4 925 315 31 DAMPER 116 4 993 142 11 PULLY L PRESS M151 A 4672 207 A MOTOR L ASSY LOADING 101 102 110 110 111 112 113 114 115 115 M151 3 11...

Page 35: ...lace only with part number specified 151 8 848 379 31 OPTICAL PICK UP KSS 213BA F NP 152 1 769 069 11 WIRE FLAT TYPE 16 CORE 153 4 917 567 21 GEAR M 154 4 951 940 01 INSULATOR BU 155 4 917 565 01 SHAFT SLED 156 4 917 564 01 GEAR P FLATNESS 157 A 4699 969 A BD BOARD COMPLETE M101 X 4917 523 4 MOTOR ASSY SPINDLE M102 X 4917 504 1 MOTOR ASSY SLED 151 152 153 154 156 M102 M101 5 4 157 155 154 ...

Page 36: ...HIP 0 47uF 25V C125 1 163 217 11 CERAMIC CHIP 1PF 0 25PF 50V C126 1 135 216 11 TANTALUM CHIP 10uF 20 10V C140 1 163 038 91 CERAMIC CHIP 0 1uF 25V C141 1 163 038 91 CERAMIC CHIP 0 1uF 25V C151 1 163 237 11 CERAMIC CHIP 27PF 5 50V C153 1 163 038 91 CERAMIC CHIP 0 1uF 25V C154 1 164 336 11 CERAMIC CHIP 0 33uF 25V C156 1 163 237 11 CERAMIC CHIP 27PF 5 50V C157 1 163 145 00 CERAMIC CHIP 0 0015uF 5 50V ...

Page 37: ...25V C389 1 136 165 00 FILM 0 1uF 5 50V C390 1 136 165 00 FILM 0 1uF 5 50V C392 1 161 494 00 CERAMIC 0 022uF 25V C393 1 162 282 31 CERAMIC 100PF 10 50V C394 1 162 290 31 CERAMIC 470PF 10 50V C395 1 164 159 21 CERAMIC 0 1uF 50V C396 1 164 159 21 CERAMIC 0 1uF 50V C404 1 119 800 11 ELECT 100uF 20 25V C405 1 136 850 11 FILM 0 1uF 5 63V C406 1 136 850 11 FILM 0 1uF 5 63V C408 1 101 361 00 CERAMIC 150PF...

Page 38: ...N 2P LINE OUT UK J721 1 774 726 11 JACK S LINK CONTROL A1 J781 1 778 228 11 JACK PIN 1P DIGITAL OUT COAXIAL AEP J781 1 784 689 11 JACK PIN 1P DIGITAL OUT COAXIAL UK COIL L302 1 410 322 11 INDUCTOR 3 3uH L303 1 410 322 11 INDUCTOR 3 3uH L304 1 410 503 11 INDUCTOR 3 3uH L355 1 410 507 11 INDUCTOR 6 8uH L401 1 412 473 21 INDUCTOR 0uH L451 1 412 473 21 INDUCTOR 0uH L751 1 410 322 11 INDUCTOR 3 3uH L78...

Page 39: ...BON 6 8K 5 1 4W F R502 1 249 415 11 CARBON 680 5 1 4W F R503 1 249 417 11 CARBON 1K 5 1 4W F R504 1 249 419 11 CARBON 1 5K 5 1 4W F R505 1 249 421 11 CARBON 2 2K 5 1 4W F R506 1 247 843 11 CARBON 3 3K 5 1 4W R507 1 249 427 11 CARBON 6 8K 5 1 4W F R507 1 247 864 11 CARBON 24K 5 1 4W R508 1 249 429 11 CARBON 10K 5 1 4W R511 1 249 427 11 CARBON 6 8K 5 1 4W F R512 1 249 415 11 CARBON 680 5 1 4W F R513...

Page 40: ...DE RD5 1ESB2 COIL L601 1 410 322 11 INDUCTOR 3 3uH L602 1 410 322 11 INDUCTOR 3 3uH L603 1 410 322 11 INDUCTOR 3 3uH L604 1 410 322 11 INDUCTOR 3 3uH L605 1 412 473 21 INDUCTOR 0uH TRANSISTOR Q641 8 729 041 38 TRANSISTOR 2SB1241TV2Q RESISTOR R601 1 249 411 11 CARBON 330 5 1 4W R641 1 247 843 11 CARBON 3 3K 5 1 4W R642 1 247 843 11 CARBON 3 3K 5 1 4W R643 1 212 873 11 FUSIBLE 47 5 1 4W F R644 1 247...

Page 41: ...49 1 Printed in Hungary 1998 6 Published by Quality Assurance Dept Shibaura HARDWARE LIST 1 7 685 871 01 SCREW BVTT 3X6 S 2 7 685 885 09 SCREW BVTT 4X16 S 3 7 621 775 10 SCREW B 2 6X4 4 7 621 255 15 SCREW P 2X3 5 7 685 134 19 SCREW BTP 2 6X8 TYPE2 N S Ref No Part No Description Remark ...

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