Sony CDX-2250 - Cd Changer Service Manual Download

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Model Name Using Similar Mechanism

CDX-2180

CD Drive Mechanism Type

MG-363X-121

Optical Pick-up Name

KSS-521A

SERVICE MANUAL

US Model

Canadian Model

CDX-2250

E Model

CDX-3500

CDX-2250/3500

FM/AM COMPACT DISC PLAYER

MICROFILM

SPECIFICATIONS

Photo: CDX-2250

Summary of Contents for CDX-2250 - Cd Changer

Page 1: ...Mechanism CDX 2180 CD Drive Mechanism Type MG 363X 121 Optical Pick up Name KSS 521A SERVICE MANUAL US Model Canadian Model CDX 2250 E Model CDX 3500 CDX 2250 3500 FM AM COMPACT DISC PLAYER MICROFILM SPECIFICATIONS Photo CDX 2250 ...

Page 2: ...e 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 NOTES ON PICK UP FLEXIBLE BOARD The pick up flexible board in this set is secured to the optical pick up with an adhesive tape Once the tape is removed an adhering force becomes weak and it cannot be reused Therefore if the optical ...

Page 3: ...lock 15 3 ELECTRICAL ADJUSTMENTS Tuner Section 16 CD Section 18 4 DIAGRAMS 4 1 IC Pin Description 19 4 2 Circuit Boards Location 21 4 3 Printed Wiring Boards CD Mechanism Section 23 4 4 Schematic Diagram CD Mechanism Section 25 4 5 Printed Wiring Board Display Section 27 4 6 Schematic Diagram Display Section 29 4 7 Printed Wiring Board Main Section 31 4 8 Schematic Diagram Main Section 1 2 33 4 9 ...

Page 4: ... 4 SECTION 1 GENERAL This section extracted from US Canadian model s instruction manual ...

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Page 10: ...ION 2 DISASSEMBLY Note Follow the disassembly procedure in the numerical order given 2 1 COVER ASSY 2 2 FRONT PANEL ASSY 4 cover assy 1 claw 2 claw 3 claws 5 front panel assy 1 claws 2 claws 3 claw 4 connector ...

Page 11: ... 11 2 3 DISPLAY BOARD 2 4 CD MECHANISM BLOCK 1 P 2x8 2 P 2x8 3 claws 4 DISPLAY board 7 PTT 2 6x6 3 PTT 2 6x6 6 PTT 2 6x6 2 PTT 2 6x6 1 PTT 2 6x6 4 CNP701 8 bracket M D 5 CD mechanism block ...

Page 12: ... 12 2 5 MAIN BOARD 2 6 HEAT SINK 2 PTT 2 6x8 4 screws BTT 3 screw BTT 1 PTT 2 6x8 5 MAIN board 1 PTT 2 6x8 2 PTT 2 6x10 3 PTT 2 6x8 4 heat sink ...

Page 13: ...SSIS T SUB ASSY 2 8 LEVER ASSY 5 chassis T sub assy 2 P 2x3 4 P 2x3 3 P 2x3 1 Unsolder the lead wires red white black 4 claws 2 DISCIN board 7 lever L assy 3 tension spring LR 6 lever R assy 5 guide disc 1 PS 2x4 ...

Page 14: ...installing take note of the positions arm roller and washers Fig 1 5 PS 2x4 1 CN3 3 P 2x3 4 loading motor assy 7 SERVO board 2 CN2 6 PS 2x4 Fig 1 4 PS 2x3 5 LOAD board 1 tension spring RA 2 arm roller 3 roller assy washer arm arm washer washers ...

Page 15: ...pring angle 8 compression spring FL 7 chassis OP O S 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 1 P 2x3 2 sled motor assy 3 optical pick up block ...

Page 16: ...dulation 1 kHz 75 kHz deviation 100 FM CENTER OUT Both side of R24 IC1 pin IC1 pin digital voltmeter 0 dBs 3 dBs fc 10 fc fc 10 kHz FM RF signal generator dummy antenna 50 Ω 50 Ω 4 Ω antenna terminal set SPEAKER OUT level meter AM RF signal generator dummy antenna antenna terminal set SPEAKER OUT level meter 30 Ω 4 Ω 15 pF 30 pF Procedure Adjust for a maximum reading on level meter IFT1 3 1 400 kH...

Page 17: ...stment Setting SOURCE n MODE button AM D BASS switch OFF Frequency Select switch E model AM 10K AM RF signal generator dummy antenna antenna terminal set SPEAKER OUT level meter 30 Ω 4 Ω 15 pF 30 pF digital voltmeter S METER OUT Adjustment Location tuner unit TU01 tuner unit TU01 component side AM AUTO SCAN STOP LEVEL ADJ IFT3 AM SENS ADJ IFT3 IFT1 FEB1 FM SENS IF ADJ IFT4 FM CENTER ADJ tuner unit...

Page 18: ... slightly counter clockwise If the gain is too low Focus does not function and no music is selected If the gain is too high Noise caused by scratches and dust is heard and the operation becomes unstable Adjustment Location servo board Adjustment Location servo board component side Procedure 1 Connect an oscilloscope between TP RF and TP RF GND on the SERVO board 2 Connect the power supply 3 Push t...

Page 19: ...24 KEYIN2 1 I A D key input 2 1 25 ROT IN I Rotary commander input 26 S METER I FM and AM common signal meter A D conversion input 27 TEST SW I TEST mode select input 28 AM IFC I AM center frequency input 29 FM IFC I FM center frequency input 30 VDD2 Power supply 5 V 31 VCOH FM I Local oscillation frequency input FM 32 VCOL AM I Local oscillation frequency input AM 33 GND2 Ground 34 NC Not used 35...

Page 20: ...oth STEREO indicator display input and force MONO output FM OUT MONO 65 LCD CKO O LCD driver serial clock output 66 LCD So O LCD driver serial data output 67 INH O INHbit output 68 SQ CKo O Q data read serial clock output 69 CD RST O Servo IC DAC reset output 70 SQ SI I Q data input 71 CD SO O Serial data output to servo IC 72 CD LAT O Data latch output to servo IC 73 CD CKO O Serial clock output ...

Page 21: ...are in Ω and 1 4 W or less unless otherwise specified Note The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified U B Line H adjustment for repair Power voltage is dc 14 4V and fed with regulated dc power supply from ACC and BATT cords Voltage and waveforms are dc with respect to ground under no signal conditions no mark CD PLAY I...

Page 22: ... SECTION CDX 2250 3500 Ref No Location IC1 D 2 IC2 E 5 IC3 B 2 Q1 F 6 Q2 F 6 Semiconductor Location Note X parts extracted from the component side Y parts extracted from the conductor side b Pattern from the side which enables seeing 23 24 ...

Page 23: ...4 4 SCHEMATIC DIAGRAM CD MECHANISM SECTION Refer to page 22 for Waveforms and Note and page 37 for IC Block Diagrams CDX 2250 3500 25 26 Page 33 ...

Page 24: ...e B pattern face are indicated Parts face side Parts on the parts face side seen from the Side A parts face are indicated Semiconductor Location Ref No Location D551 B 10 D552 B 9 D554 B 10 D561 B 12 D562 A 13 D563 B 13 D564 C 5 D565 C 4 Ref No Location D566 A 4 D567 C 2 D568 C 9 D569 C 8 D570 C 7 D571 C 12 D572 C 11 D573 C 3 27 28 CDX 2250 3500 D574 C 2 D575 B 3 D576 A 2 D577 B 1 D578 A 1 IC551 B...

Page 25: ...ecified U B Line Power voltage is dc 14 4V and fed with regulated dc power supply from ACC and BATT cords C panel designation Voltage is dc with respect to ground under no signal detuned condition no mark FM Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal production tolerances 4 6 SCHEMATIC DIAGRAM DISPLAY SECTION 29 30 CDX 2250 3500 Page 36 ...

Page 26: ...02 B 5 Q201 B 5 Q202 B 5 Q401 B 5 Q402 B 5 Q601 D 6 Q602 D 6 Q605 C 6 Q606 C 6 Q801 D 3 Q901 D 1 Q902 C 1 Q904 D 1 Q905 C 1 Q906 D 1 Q907 C 1 Q908 B 2 Q909 B 3 Q910 E 1 Q911 E 2 Q912 E 1 Q913 E 1 Q915 B 1 Q916 C 1 Q917 E 1 Q918 D 1 D401 B 5 D402 B 1 D604 E 6 D701 D 2 D811 B 3 D812 B 2 D901 C 1 D902 B 1 D903 D 1 D904 E 1 D905 E 1 D906 B 1 D907 B 1 D908 B 2 D910 B 4 D911 B 1 D914 B 2 D916 A 3 D917 B...

Page 27: ...Power voltage is dc 14 4V and fed with regulated dc power supply from ACC and BATT cords Voltage is dc with respect to ground under no signal detuned condition no mark FM AM CD PLAY Impossible to measure Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal production tolerances Signal path F FM f AM J CD Abbreviation CND Canadian model 4 8 SCHEMATIC DIAG...

Page 28: ... 35 36 4 8 SCHEMATIC DIAGRAM MAIN SECTION 2 2 Refer to page 37 for IC Block Diagrams CDX 2250 3500 Page 29 ...

Page 29: ...6 27 28 LOGIC CTL1 CTL2 FWD REV V I IC401 LC75374E DECODER LATCH SHIFT REGISTER CONTROL 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 LSELO L4 L3 L2 L1 VDD R1 R2 R3 R4 RSELO RVRIN RCOM RT1 RT2 RT3 RTOUT RSIN NC NC RSB1 RSB2 RFIN RFOUT RROUT VSS CL DI CE VREF LROUT LFOUT LFIN LSB2 LSB1 NC NC LSIN LTOUT LT3 LT2 LT1 LCOM LVR...

Page 30: ...GD FDFCT FE M FEI FEO FE BIAS F E EI VEE TED LPFI TEI ATSC TZC TDFCT VC APC LEVEL S FOK MIRR RF IV AMP1 RF IV AMP2 FE AMP TTL IIL FZC COMP DFCT IIL TTL IIL DATA REGISTER INPUT SHIFT REGISTER ADDRESS DECODER OUTPUT DECODER TTL IIL TOG1 3 BAL1 3 FS1 4 TG1 2 TM1 7 PS1 4 F IV AMP E IV AMP BAL1 BAL2 BAL 3 TE AMP TZC COMP DFCT TM1 DFCT FS4 ATSC WINDOW COMP TOG1 TOG2 TOG3 FCS PHASE COMPENSATION FS1 F SET...

Page 31: ...y mark or dotted line with mark are critical for safety Replace only with part number specified Les composants identifiés par une marque sont critiques pour la sécurité Ne les remplacer que par une piéce portant le numéro spécifié Ref No Part No Description Remark Ref No Part No Description Remark 7 3 030 849 01 HEAT SINK T 8 3 019 565 01 BRACKET IC 9 3 030 850 01 HEAT SINK REG 10 3 024 285 01 CUS...

Page 32: ...COMPLETE CDX 2250 66 1 783 268 11 CABLE FLAT LCD551 1 803 439 21 DISPLAY PANEL LIQUID CRYSTAL 51 X 3376 779 1 PANEL S ASSY FRONT CDX 2250 51 X 3377 101 1 PANEL S ASSY FRONT CDX 3500 52 3 019 544 03 KNOB SEEK AMS CDX 2250 52 3 019 544 23 KNOB SEEK AMS CDX 3500 53 3 019 542 01 BUTTON RESET 54 3 019 550 01 BUTTON MODE SOUND 55 3 019 552 01 BUTTON 1 6 56 3 030 873 11 BUTTON CD EJECT 57 3 025 315 02 BU...

Page 33: ...27 A SERVO BOARD COMPLETE 116 3 007 530 01 BRACKET MOTOR M903 A 3291 676 A MOTOR SUB ASSY LOADING 101 1 659 836 11 DISCIN BOARD 102 A 3291 816 B CHASSIS T SUB ASSY 103 3 931 909 01 SPRING LR TENSION 104 X 3371 501 1 LEVER L ASSY 105 3 338 737 01 SCREW 2X3 PS 106 1 659 837 11 LOAD BOARD 107 X 3371 502 1 LEVER R ASSY 108 A 3301 203 A ROLLER ASSY 109 3 931 908 01 GUIDE DISC 102 104 111 112 103 109 10...

Page 34: ...GEAR MDL 163 3 007 537 11 WHEEL U WORM 164 3 032 484 01 SPRING KR1 TENSION 165 3 018 272 01 WASHER 151 3 931 893 01 ARM CHUCKING 152 3 931 897 01 DAMPER T 153 3 931 879 02 LEVER D 154 3 913 404 11 RETAINER DISC 155 3 931 894 01 BRACKET CP 156 3 931 895 01 SPRING CH TENSION 157 3 931 898 01 SPRING FL COMPRESSION 158 3 032 483 02 SPRING KF1 TENSION 155 154 151 156 157 158 160 162 161 164 160 165 159...

Page 35: ...1 CHASSIS OP O S ASSY 202 3 931 829 01 SPRING SL PLATE 203 X 3371 504 1 BASE DRIVING ASSY 204 3 931 832 01 GEAR SL 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 Les composants identifiés par une marque sont critiques pour la sécurité Ne les remplacer que par une piéce portant le numéro spécifié The components iden...

Page 36: ...IODE SML 010PT T86 SENS D562 8 719 067 77 DIODE SML 010PT T86 DSPL D563 8 719 067 77 DIODE SML 010PT T86 6 D564 8 719 067 77 DIODE SML 010PT T86 1 D565 8 719 067 77 DIODE SML 010PT T86 OFF D566 8 719 067 77 DIODE SML 010PT T86 SOUND D567 8 719 067 77 DIODE SML 010PT T86 SOURCE D568 8 719 067 77 DIODE SML 010PT T86 4 D569 8 719 067 77 DIODE SML 010PT T86 3 D570 8 719 067 77 DIODE SML 010PT T86 2 D5...

Page 37: ...SCREW PTT 2 6X8 S 7 685 794 09 SCREW PTT 2 6X10 S 3 019 565 01 BRACKET IC 3 030 849 01 HEAT SINK T 3 030 850 01 HEAT SINK REG CAPACITOR C101 1 163 007 11 CERAMIC CHIP 680PF 10 50V C102 1 162 587 11 CERAMIC CHIP 0 039uF 10 25V C103 1 164 346 11 CERAMIC CHIP 1uF 16V C104 1 164 489 11 CERAMIC CHIP 0 22uF 10 16V CDX 3500 C104 1 164 492 11 CERAMIC CHIP 0 15uF 10 16V CDX 2250 C105 1 124 233 11 ELECT 10u...

Page 38: ...CHIP 0 1uF 25V C830 1 164 222 11 CERAMIC CHIP 0 22uF 25V C831 1 163 077 00 CERAMIC CHIP 0 1uF 10 25V C901 1 124 257 00 ELECT 2 2uF 20 50V C902 1 163 038 00 CERAMIC CHIP 0 1uF 25V C903 1 124 257 00 ELECT 2 2uF 20 50V C904 1 110 654 11 ELECT BLOCK 0 047F 0 0 C907 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C908 1 124 465 00 ELECT 0 47uF 20 50V C909 1 126 768 11 ELECT 2200uF 20 16V C910 1 164 156 11 CERAM...

Page 39: ...SISTOR 2SB1202FAST Q916 8 729 027 43 TRANSISTOR DTC114EKA T146 Q917 8 729 101 07 TRANSISTOR 2SB798 DL Q918 8 729 027 43 TRANSISTOR DTC114EKA T146 RESISTOR R101 1 216 071 00 METAL CHIP 8 2K 5 1 10W R102 1 216 073 00 METAL CHIP 10K 5 1 10W R103 1 216 065 00 RES CHIP 4 7K 5 1 10W R104 1 216 214 00 RES CHIP 4 7K 5 1 8W R105 1 216 049 11 RES CHIP 1K 5 1 10W R106 1 216 049 11 RES CHIP 1K 5 1 10W R107 1 ...

Page 40: ...R907 1 216 079 00 METAL CHIP 18K 5 1 10W R908 1 216 089 00 RES CHIP 47K 5 1 10W R909 1 216 105 00 RES CHIP 220K 5 1 10W R911 1 216 296 00 SHORT 0 R912 1 216 049 11 RES CHIP 1K 5 1 10W R913 1 249 421 11 CARBON 2 2K 5 1 4W F R914 1 216 057 00 METAL CHIP 2 2K 5 1 10W R915 1 216 057 00 METAL CHIP 2 2K 5 1 10W R916 1 216 077 00 METAL CHIP 15K 5 1 10W R917 1 216 049 11 RES CHIP 1K 5 1 10W R918 1 216 065...

Page 41: ... 0 JR46 1 216 296 00 SHORT 0 COIL L1 1 412 058 11 INDUCTOR CHIP 10uH L2 1 412 058 11 INDUCTOR CHIP 10uH L3 1 412 058 11 INDUCTOR CHIP 10uH TRANSISTOR Q1 8 729 904 60 TRANSISTOR DTB113ZK Q2 8 729 904 86 TRANSISTOR 2SB1197K Q RESISTOR R1 1 216 073 00 METAL CHIP 10K 5 1 10W R2 1 216 097 00 RES CHIP 100K 5 1 10W R3 1 216 121 00 RES CHIP 1M 5 1 10W R4 1 216 061 00 METAL CHIP 3 3K 5 1 10W R5 1 216 061 0...

Page 42: ...NGLISH FRENCH CDX 2250 3 865 650 21 MANUAL INSTRUCTION INSTALL ENGLISH SPANISH CHINESE CDX 3500 3 865 652 11 MANUAL INSTRUCTION ENGLISH CDX 2250 3 865 652 21 MANUAL INSTRUCTION FRENCH CDX 2250 CND 3 865 652 31 MANUAL INSTRUCTION ENGLISH SPANISH CHINESE CDX 3500 HARDWARE LIST 1 7 685 792 09 SCREW PTT 2 6X6 S 2 7 685 793 09 SCREW PTT 2 6X8 S 3 7 685 794 09 SCREW PTT 2 6X10 S 4 7 685 105 19 SCREW P 2...

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