Sony CDX-L550 Page 19 Service Manual Download | Manualshive

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19

CDX-L550/L550V/L550X

Ref. No.

Location

(Page 21)

IC1

D-2

IC2

G-2

Q1

B-3

• Semiconductor

Location

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Summary of Contents for CDX-L550

Page 1: ...erminal External aerial connector Intermediate frequency 10 7 MHz 450 kHz Sensitivity MW 30 µV LW 40 µV Power amplifier section Outputs Speaker outputs sure seal connectors Speaker impedance 4 8 ohms Maximum power output 50 W 4 at 4 ohms SPECIFICATIONS General Outputs Audio outputs Power aerial relay control lead Power amplifier control lead Inputs Telephone ATT control lead Remote controller inpu...

Page 2: ... 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 APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY 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 ...

Page 3: ...3 CDX L550 L550V L550X SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 4: ...4 CDX L550 L550V L550X ...

Page 5: ...5 CDX L550 L550V L550X ...

Page 6: ...6 CDX L550 L550V L550X ...

Page 7: ...7 7 CDX L550 L550V L550X ...

Page 8: ...o Board Arm Roller Assy Chassis OP Assy Optical Pick up Block Main Board Heat Sink Note Follow the disassembly procedure in the numerical order given 2 1 SUB PANEL ASSY 1 PTT 2 6x6 2 PTT 2 6x6 4 two claws 3 claw 6 sub panel assy 5 CN701 4 CNP301 5 CD mechanism block 7 bracket CD 3 6 PTT 2 6x4 1 PTT 2 6x4 2 PTT 2 6x4 4 ground point screw PTT 2 6x6 5 ground point screws PTT 2 6x6 1 PTT 2 6x4 6 MAIN ...

Page 9: ...9 CDX L550 L550V L550X 2 4 HEAT SINK 2 5 CHASSIS T U ASSY 1 PTT 2 6x10 3 PTT 2 6x10 4 heat sink 2 PTT 2 6x16 4 chassis T U assy 3 P 2x3 2 P 2x3 1 Unsolder the lead wires black red white ...

Page 10: ... DISC IN BOARD GUIDE DISC 2 7 SERVO BOARD 4 claws 2 DISC IN board 3 tension spring LR 4 guide disc 1 PS 2x3 8 PS 2x4 1 CN3 3 Removal the solders 4 Removal the solders 5 P 2x3 6 loading motor assy M903 9 SERVO board 2 CN2 7 PS 2x4 ...

Page 11: ...asher RA bearing roller bearing roller 1 tension spring KF1 8 compression spring FL 7 chassis OP assy 9 compression spring FL 2 tension spring KR1 5 Fit lever D in the direction of the arrow 3 damper T 4 damper T 6 Turn loading ring in the direction of the arrow 2 8 ARM ROLLER ASSY When installing take note of the positions arm roller and washers Fig 1 ...

Page 12: ...12 CDX L550 L550V L550X 2 10 OPTICAL PICK UP BLOCK 1 P 2x3 2 sled motor assy M902 3 optical pick up block ...

Page 13: ...ut Not used in this set 25 BUSON O BUS ON output Not used in this set 26 KEYACK I Key acknowledge detection input 27 DAVN I RDS data block synchronization detection input 28 BUIN I Backup power supply input 29 SIRCS I SIRCS input 30 CD SELFSW I CD mechanism deck Self switch detection input 31 CD PACK I CD text pack synchronization signal input from CD servo IC 32 VDD2 Power supply pin 5 V 33 RESET...

Page 14: ...O System attenuator control output 70 VOLATT O Electric volume attenuator control output 71 75 NCO O Not used Open 76 COLSW I Key illumination 1 color 2 color select initial setting input L 1 COLOR H 2 COLOR Fixed at L CDX L550 H CDX L550V L550X 77 COLSEL I 1 color initial setting input L amber H green Fixed at L in this set 78 DIMSEL I Manual dimmer initial setting input L dimmer without H dimmer...

Page 15: ... M903 LOADING SW3 LIMIT SW2 SELF SW4 DOWN SW1 DISC IN X1 16 9344MHz OPTICAL PICK UP KSS 720A I V CONV CDL CD PACK TSTB STB AO CD TSO CD TSI CD TCKO CD RST RFOK XEN IN SW LIMIT CD SELF SW D SW CD LM LO CD LM EJ CDMD ON XCD ON R CH TUNER SECTION A 23 24 M M M 1 RESET S702 RESET 2 IC602 BU 5V BATT LOUT ROUT PACK TSTB SI RFOK SO SCK STB AO XTALEN RST RESET A C B D E F PD LD A C B D E F PD LD LD AMP FO...

Page 16: ...2 R AUDIO OUT REAR CD SECTION A MUTE CONT Q478 479 Q451 MUTE Q431 MUTE PJ401 1 2 R CH 3 L 4 R AUDIO OUT FRONT 22 MUTE 4 STBY 16 AUX 11 12 5 3 9 7 POWER AMP IC404 1 9 2 10 CNP601 FL FL RL RL 4 12 FR FR 3 11 RR RR 16 BATT 13 ATT 5 AMP R 6 ANT R R CH BATT F901 TEL ATT Q651 7 ACC 15 TEST 49 50 TUN ON 37 TEST IN ACC CHECK Q631 POWER SUPPLY IC601 3 PW ON 28 BU IN 4 2 7 6 BATT BATT BATT VCC AMP B 8 ANT B...

Page 17: ...SC OUT 93 ILL ON BATT OSC IN X501 18 43MHz LED801 LSW801 LED902 903 LSW901 911 814 919 LED900 901 913 914 78 77 76 80 79 GREEN AMBER LCD901 L550 L550V LED DRIVE Q906 LED DRIVE Q905 LED905 906 909 910 3 4 BLOCK DIAGRAM DISPLAY SECTION 3 5 CIRCUIT BOARDS LOCATION MAIN board SUB board LIMIT board DISC IN board SUB CD board LOAD board KEY board SERVO board tuner unit TU10 Waveforms Servo Board MODE CD...

Page 18: ...ce 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM f MW J CD for printed wiring boards X parts extracted from the component side Y parts extracted from the conductor side x parts mounted on the conductor side a T...

Page 19: ...19 19 CDX L550 L550V L550X Ref No Location Page 21 IC1 D 2 IC2 G 2 Q1 B 3 Semiconductor Location ...

Page 20: ...550X IC B D IC B D Refer to page 17 for Waveforms 3 7 SCHEMATIC DIAGRAM CD MECHANISM SECTION Refer to page 29 for IC Block Diagrams Note Voltage is dc with respect to ground under no signal conditions no mark CD PLAY Page 22 ...

Page 21: ... 12 Q556 C 13 Q557 K 12 Q631 E 10 Q651 E 10 Q660 I 14 Q661 J 13 Q662 I 13 Q663 J 14 Q664 J 6 Ref No Location D21 J 2 D22 J 2 D23 I 3 D331 H 13 D332 H 13 D341 G 9 D471 A 9 D472 A 9 D473 A 9 D474 A 9 D475 C 8 D476 A 10 D477 C 8 D478 A 11 D479 D 8 D551 D 13 D556 D 13 D601 B 12 D609 E 11 D610 E 6 D611 B 11 D612 D 10 D613 D 10 D614 C 11 D621 G 13 D662 J 13 D671 K 4 D701 J 4 D710 L 3 D711 K 2 D713 L 2 D...

Page 22: ...r to page 17 for Waveforms 3 9 SCHEMATIC DIAGRAM MAIN SECTION 1 2 Refer to page 29 for IC Block Diagrams IC B D IC B D Page 23 Note Voltage is dc with respect to ground under no signal detuned condition no mark FM MW CD PLAY Page 20 ...

Page 23: ...DX L550 L550V L550X IC B D 3 10 SCHEMATIC DIAGRAM MAIN SECTION 2 2 Refer to page 29 for IC Block Diagrams Note Voltage is dc with respect to ground under no signal detuned condition no mark FM Page 22 Page 25 ...

Page 24: ...24 24 CDX L550 L550V L550X 3 11 PRINTED WIRING BOARD SUB CD SECTION Page 21 Page 27 ...

Page 25: ...25 25 CDX L550 L550V L550X 3 12 SCHEMATIC DIAGRAM SUB CD SECTION Page 23 Page 26 ...

Page 26: ...26 26 CDX L550 L550V L550X 3 13 SCHEMATIC DIAGRAM KEY SECTION Note Voltage is dc with respect to ground under no signal detuned condition no mark FM Page 25 ...

Page 27: ...0X Page 24 LED902 B 1 LED903 B 1 LED905 A 4 LED906 A 10 LED909 B 10 LED910 B 4 LED913 B 12 LED914 B 13 Q901 B 4 Q902 C 4 D901 C 10 D902 C 11 D903 C 11 D904 C 11 D906 C 11 D908 C 10 IC900 C 8 LED900 A 2 LED901 C 2 Ref No Location Semiconductor Location Ref No Location SIDE B ...

Page 28: ...CTION L550V Page 24 Ref No Location D901 B 10 D902 C 11 D903 C 11 D904 C 11 D906 C 11 D908 C 10 IC900 B 8 LED900 A 2 Semiconductor Location Ref No Location LED901 C 2 LED902 B 1 LED903 B 1 LED905 A 4 LED906 A 10 LED913 B 12 LED914 B 13 Q905 B 5 Q906 B 5 SIDE B ...

Page 29: ...FM EFM DEFECT FOK A3T MIRR FEO TEO TEOFS FEOFS RF AMP BLOCK SWITCH MICROCOMPUTER INTERFACE SCF OSC FOCUS REGISTER TRACKING REGISTER OCTUPLED OVERSAMPLING DIGITAL FILTER NOISE SHAVER OUTPUT BUFFER NOISE SHAVER OUTPUT BUFFER DE EMPHASIS CIRCUIT D A INTERFACE CIRCUIT OUTPUT PROCESSOR DIGITAL AUDIO INTERFACE DIGITAL PLL TIMING GENERATOR EFM DEMODULATOR ERROR CORRECTION PROCESSOR MICROCOMPUTER INTERFAC...

Page 30: ...PREVCC 8 POWVCC VOL VOL IN1 4 PS LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT POWER SAVE CH1 4 MUTE X3 9 10 11 VO2 12 VO2 13 VO1 14 VO1 5 BIAS OPIN4 OPIN4 OPIN3 OPOUT3 MUTE POWVCC GND OPIN3 OPOUT4 VO3 VO3 VO4 VO4 7 5k 7 5k 16k 16k 7 5k 7 5k 16k 16k 10k 10k 10k 10k 10k 10k 10k 10k 10k 10k 10k 10k LEVEL SHIFT 10k 10k 10k 10k 28 27 26 23 22 21 25 20 19 18 17 16 15 24 POWVCC34 CH3 CH4 PREVCC PRE LOADING POWVCC...

Page 31: ... SOURCE SELECTOR MIXING SELECTOR IIC BUS DIGITAL CONTROL DEMODULATOR STEREO ADJUST STEREO BLEND PILOT CANCELLATION MULTI PATH DETECTOR AM FM NOISE BLANKER PULSE FORMER SUPPLY 25kHz LP 86kHz LP STD IN GAIN S H HIGH OUT QUAL A D 12 13 14 15 16 18 19 22 21 20 INPUT MULTIPLEXER TAPE R FDR FDL FDL PAUSE PHONE TIM NAVI AM MPX2 AMIF CMPX TAPEL MDL MDR CDL CDR CREF AC OUTL SWACOUT ACOUTR ACINR SWIN ACINL ...

Page 32: ... safety Replace only with part number specified Ref No Part No Description Remark 4 1 CHASSIS SECTION R Ref No Part No Description Remark R 1 X 3378 512 1 PANEL ASSY SUB 2 3 040 990 01 BUTTON EJECT 3 1 680 762 11 SUB CD BOARD 4 X 3376 699 1 GEAR ASSY 5 3 030 909 02 DAMPER OIL 6 3 713 786 51 SCREW P 2X3 7 X 3377 621 1 LOCK ASSY 8 3 223 782 01 COVER 9 1 776 527 61 CORD WITH CONNECTOR ISO POWER 10 3 ...

Page 33: ...798 01 HOLDER LCD 57 X 3380 079 1 PANEL ASSY FRONT BACK 58 X 3380 080 1 KNOB VOL ASSY L550V L550X 58 X 3380 081 1 KNOB VOL ASSY L550 59 3 223 751 01 BUTTON 4 6 60 3 223 753 01 BUTTON SOURCE MODE 61 3 223 750 01 BUTTON 1 3 62 3 223 752 11 BUTTON DSO EQ7 63 3 223 799 01 PLATE LCD GROUND 64 1 694 780 11 CONDUCTIVE BOARD CONNECTION 65 3 223 800 01 ILLUMINATOR LCD L550 L550X 65 3 231 293 01 ILLUMINATOR...

Page 34: ...ription Remark 101 A 3315 247 A CHASSIS T U ASSY 102 3 931 909 01 SPRING LR TENSION 103 1 659 836 11 DISC IN BOARD 104 3 338 737 01 SCREW 2X3 PS 105 1 659 837 11 LOAD BOARD 106 3 039 629 01 BRACKET MOTOR 107 A 3283 047 A SERVO BOARD COMPLETE 108 3 225 784 01 SPRING RA3 TENSION 109 A 3315 040 A ROLLER ASSY ARM 110 3 338 737 01 SCREW 2X3 PS M903 A 3315 039 A MOTOR SUB ASSY LD LOADING ...

Page 35: ... DAMPER T 153 3 039 627 01 LEVER D 154 3 040 165 01 RETAINER DISC 155 3 018 272 01 WASHER 156 3 931 895 01 SPRING CH TENSION 157 3 931 898 01 SPRING FL COMPRESSION 158 3 032 483 01 SPRING KF1 TENSION 159 A 3315 243 A CHASSIS M ASSY 160 3 220 180 01 SPRING TR2 TENSION 161 3 931 881 01 LEVER LOCK 162 3 931 882 02 GEAR MDL 163 3 007 537 11 WHEEL U WORM 164 3 032 484 01 SPRING KR1 TENSION 165 3 014 72...

Page 36: ...04 203 202 207 201 M901 201 X 3378 598 1 CHASSIS OP ASSY including M901 202 3 043 494 01 SPRING SL TORSION 203 3 040 170 01 BASE DRIVING 204 3 040 419 01 GEAR MIDWAY 205 1 659 835 12 LIMIT BOARD 206 3 338 737 01 SCREW 2X3 PS 207 1 659 880 11 MOTOR FLEXIBLE BOARD 208 1 659 834 11 SUB BOARD 209 3 909 607 01 SCREW 0210 8 820 103 03 PICK UP OPTICAL KSS 720A K1RP 211 3 025 743 01 SPRING FEED LEAF 212 1...

Page 37: ...DE UDZ TE 17 6 2B D904 8 719 056 82 DIODE UDZ TE 17 6 2B D906 8 719 056 93 DIODE UDZ TE 17 18B D908 8 719 158 15 DIODE UDZ TE 17 5 6B L550V D908 8 719 976 99 DIODE DTZ5 1B L550 L550X IC IC900 8 759 826 21 IC LC75874W LIQUID CRYSTAL DISPLAY LCD901 1 804 292 21 DISPLAY PANEL LIQUID CRYSTAL L550 LCD901 1 804 292 41 DISPLAY PANEL LIQUID CRYSTAL L550X LCD901 1 804 293 11 DISPLAY PANEL LIQUID CRYSTAL L5...

Page 38: ...V RESISTOR R902 1 216 819 11 METAL CHIP 680 5 1 16W R903 1 216 819 11 METAL CHIP 680 5 1 16W R904 1 216 819 11 METAL CHIP 680 5 1 16W R905 1 216 821 11 METAL CHIP 1K 5 1 16W R906 1 216 823 11 METAL CHIP 1 5K 5 1 16W R907 1 216 823 11 METAL CHIP 1 5K 5 1 16W R908 1 216 825 11 METAL CHIP 2 2K 5 1 16W R909 1 216 827 11 METAL CHIP 3 3K 5 1 16W R910 1 216 864 11 SHORT 0 R911 1 216 829 11 METAL CHIP 4 7...

Page 39: ... R981 1 216 027 00 METAL CHIP 120 5 1 10W L550 R982 1 216 027 00 METAL CHIP 120 5 1 10W R983 1 216 027 00 METAL CHIP 120 5 1 10W L550 R984 1 216 027 00 METAL CHIP 120 5 1 10W R985 1 216 027 00 METAL CHIP 120 5 1 10W L550 R986 1 216 027 00 METAL CHIP 120 5 1 10W R987 1 216 027 00 METAL CHIP 120 5 1 10W L550 ROTARY ENCODER RE901 1 476 507 11 ENCODER ROTARY SWITCH S902 1 771 884 11 SWITCH TACTILE WIT...

Page 40: ... 16V C442 1 107 823 11 CERAMIC CHIP 0 47uF 10 16V C444 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C445 1 163 251 11 CERAMIC CHIP 100PF 5 50V C450 1 163 251 11 CERAMIC CHIP 100PF 5 50V C451 1 124 233 11 ELECT 10uF 20 16V C453 1 107 823 11 CERAMIC CHIP 0 47uF 10 16V C454 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C455 1 163 251 11 CERAMIC CHIP 100PF 5 50V C460 1 163 251 11 CERAMIC CHIP 100PF 5 50V C...

Page 41: ...UDIO OUT FRONT REAR TRANSISTOR Q21 8 729 120 28 TRANSISTOR 2SC1623 L5L6 Q22 8 729 900 53 TRANSISTOR DTC114EK Q331 8 729 021 82 TRANSISTOR 2SD2396K Q332 8 729 047 76 TRANSISTOR FMC2A T148 Q333 8 729 900 53 TRANSISTOR DTC114EK Q341 8 729 920 85 TRANSISTOR 2SD1664 QR Q431 8 729 920 21 TRANSISTOR DTC314TKH04 Q441 8 729 920 21 TRANSISTOR DTC314TKH04 Q451 8 729 920 21 TRANSISTOR DTC314TKH04 Q461 8 729 9...

Page 42: ...0K 5 1 10W L550V L550X R534 1 216 097 11 RES CHIP 100K 5 1 10W L550 L550X R536 1 216 097 11 RES CHIP 100K 5 1 10W L550 R537 1 216 097 11 RES CHIP 100K 5 1 10W R538 1 216 097 11 RES CHIP 100K 5 1 10W R539 1 216 097 11 RES CHIP 100K 5 1 10W R540 1 216 097 11 RES CHIP 100K 5 1 10W R541 1 216 097 11 RES CHIP 100K 5 1 10W R544 1 216 097 11 RES CHIP 100K 5 1 10W R551 1 216 049 11 RES CHIP 1K 5 1 10W R55...

Page 43: ...164 227 11 CERAMIC CHIP 0 022uF 10 25V C36 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C37 1 126 393 11 ELECT CHIP 33uF 20 10V C38 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C39 1 126 391 11 ELECT CHIP 47uF 20 6 3V C40 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C41 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C43 1 162 967 11 CERAMIC CHIP 0 0033uF 10 50V C44 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V CONNECTOR C...

Page 44: ...CH ITALIAN 3 227 661 21 MANUAL INSTRUCTION ENGLISH SPANISH SWEDISH PORTUGUESE GREEK RUSSIAN 3 227 661 31 MANUAL INSTRUCTION ENGLISH CZECH POLISH TURKISH RUSSIAN 3 227 676 11 MANUAL INSTRUCTION INSTALL ENGLISH FRENCH GERMAN DUTCH ITALIAN 3 227 676 21 MANUAL INSTRUCTION INSTALL ENGLISH SPANISH SWEDISH PORTUGUESE GREEK RUSSIAN 3 227 676 31 MANUAL INSTRUCTION INSTALL ENGLISH CZECH POLISH TURKISH RUSSI...

Page 45: ...SION HISTORY Clicking the version allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2001 01 New ...

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