Sony CDX-3250 Service Manual Download

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Model Name Using Similar Mechanism

CDX-4180

CD Drive Mechanism Type

MG-363X-121

Optical Pick-up Name

KSS-521A

SERVICE MANUAL

AEP Model

UK Model

CDX-3250

FM/MW/LW COMPACT DISC PLAYER

MICROFILM

SPECIFICATIONS

Summary of Contents for CDX-3250

Page 1: ...odel Name Using Similar Mechanism CDX 4180 CD Drive Mechanism Type MG 363X 121 Optical Pick up Name KSS 521A SERVICE MANUAL AEP Model UK Model CDX 3250 FM MW LW COMPACT DISC PLAYER MICROFILM SPECIFICATIONS ...

Page 2: ...connected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat NOTES ON HANDLINGTHE 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 the charged electrostatic load etc on clothing and the human body During repair pay attention to electrostatic brea...

Page 3: ... 3 SECTION 1 GENERAL This section extracted from instruction manual ...

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Page 9: ... 9 SECTION 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 2 front panel assy 1 button release ...

Page 10: ... 2 3 SUB PANEL 1 ASSY 2 4 CD MECHANISM BLOCK 1 PTT 2 6x6 2 PTT 2 6x6 4 claw 3 claw 5 sub panel 1 assy 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 11: ... 11 2 5 MAIN BOARD 2 6 HEAT SINK 2 PTT 2 6x8 4 screws ground point 3 screw ground point 1 PTT 2 6x8 5 MAIN board 1 PTT 2 6x8 2 PTT 2 6x10 3 PTT 2 6x8 4 heat sink ...

Page 12: ...IS 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 DISC IN SW board 7 lever L assy 3 tension spring LR 6 lever R assy 5 guide disc 1 PS 2x4 ...

Page 13: ...stalling 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 SW board 1 tension spring RA 2 arm roller 3 roller assy washer arm arm washer washers ...

Page 14: ...led motor assy 3 optical pick up block 1 tension spring 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 ...

Page 15: ...he adjustments of tuner section should be performed according to the following sequence 1 FM Auto Scan Stop Level Adjustment 2 FM Stereo Separation Adjustment 3 MW Auto Scan Stop Level Adjustment 0 dB 1 µV FM RF signal generator 0 01 µF antenna terminal set Carrier frequency 98 00 MHz Output level 22 dB 12 6 µV Mode mono Modulation 1 kHz 22 5 kHz deviation 30 Procedure 1 Set to the test mode 2 Pus...

Page 16: ...hannels should be equal Specification Separation more than 28 dB Adjustment Location See page 17 Procedure MW Auto Scan Stop Level Adjustment Make this adjustment after FMAuto Scan Stop LevelAdjustment Setting D BASS switch OFF SOURCE n MODE button MW AM RF signal generator Carrier frequency 999 kHz 30 amplitude modulation by 1 kHz signal output level 33 dB 44 7 µV AM dummy antenna 50 Ω antenna te...

Page 17: ... 17 TU1 RV1 MW AUTO SCAN STOP LEVEL ADJ RV2 FM AUTO SCAN STOP LEVEL ADJ RV4 FM STEREO SEPARATION ADJ Adjustment Location tuner unit TU1 set upper view ...

Page 18: ...V4 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...

Page 19: ... mode select input 28 AM IFC I MW LW 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 MW LW 33 GND2 Ground 34 NC Not used 35 EO1 PDOUT O Error out output 36 TESTO Fixed at L 37 AM ON TU ON O MW LW power output MW LW select 38 FM ON FM AM O FM power output FM select ...

Page 20: ...put 66 LCD SO O LCD driver serial data output 67 C ALARM O Caution alarm 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 to servo IC 74 VREF Not used 75 GND1 Ground 76 X OUT Crystal oscillator connection 4 5 MHz 77 X IN...

Page 21: ...4 2 CIRCUIT BOARDS LOCATION tuner assy TU01 DISC IN SW board DISPLAY board LOAD SW board SERVO board MAIN board LIMIT SW board SUB board 21 ...

Page 22: ...ditions no mark CD PLAY Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal production tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal production tolerances Circled numbers refer to waveforms Signal path J CD 22 Waveforms CD MECHANISM SECTION MODE PLAY 1 2 3 4 5 6 7 Approx 620mVp p ...

Page 23: ...SECTION CDX 3250 Ref No Location IC1 D 3 IC2 E 6 IC3 B 3 Q1 F 6 Q2 F 7 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 32 ...

Page 24: ...4 4 SCHEMATIC DIAGRAM CD MECHANISM SECTION Refer to page 22 for Waveforms and Note Refer to page 37 for IC Block Diagrams CDX 3250 25 26 Page 33 1 1 2 A ...

Page 25: ...om the Side 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 D851 B 10 D852 B 11 D853 B 10 D854 B 10 D861 B 12 D862 A 13 D863 B 13 D864 C 5 D865 C 4 D866 C 2 D867 B 4 D868 C 9 Ref No Location D869 C 8 D870 C 7 D871 C 12 D872 C 11 D873 C 3 D874 C 2 D875 B 3 D876 B 2 D877 B 1 D878 A 1 IC851 ...

Page 26: ...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 CD PLAY 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 CDX 3250 29 30 B Page 36 CNP552 D561 D578 SML 010YT T86 AMBER S...

Page 27: ... D811 J 4 D812 J 3 D901 F 1 D902 D 2 D903 H 1 D905 J 2 D906 D 3 D907 C 2 D908 C 3 D909 D 3 IC401 E 8 IC402 B 8 IC701 G 3 IC702 F 5 IC801 I 8 Q101 D 10 Q102 C 10 Q201 C 11 Q202 B 11 Q401 C 9 Q402 C 9 Q601 H 12 Q602 H 12 Q603 H 11 Q604 G 12 Q605 E 12 Q606 E 12 Q801 G 6 Q901 G 1 Q902 E 2 Q903 E 2 Q904 H 2 Q905 G 2 Q906 E 1 Q907 J 3 Q908 J 3 Q909 D 3 Q910 C 2 Q911 E 2 Q912 J 2 Q913 I 2 Q914 E 3 Q915 E...

Page 28: ... 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 MW CD PLAY Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal production tolerances Signal path F FM f MW J CD 4 8 SCHEMATIC DIAGRAM MAIN SECTION 1 2 Refer to page 3...

Page 29: ...MAIN SECTION 2 2 Refer to page 34 for Note Refer to page 39 for IC Block Diagrams 35 36 ELECTRICAL VOLUME Page 29 B 1 POWER REM REMOTE IN FRONT L CH REAR L CH REAR L CH REAR R CH REAR R CH FRONT L CH FRONT R CH FRONT R CH AMP ANT REM ...

Page 30: ...ON MDP MDS LOCK TEST FILO FILI PCO VSS AVSS CLTV AVDD RF BIAS ASYI ASYO ASYE WDCK 5 14 CPU INTERFACE SUB CODE PROCESSOR DIGITAL CLV EFM DEMODULATOR DIGITAL PLL ASYMMETRY CORRECTOR 5 D A INTERFACE ERROR CORRECTOR 3 6 3 16K RAM DIGITAL OUT CLOCK GENERATOR 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 OPOUT CH4 IN CH4 CTL1 CTL2 FWD REV TRAY GND CH3 CH5 COM CH4 CH3 CH3 IN CH3 VREF CH2 CH2 IN VCC VCC CH1 CH2 CH1 ...

Page 31: ...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 32: ...O 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 LVRIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TAB PW GND OUT2 ST BY OUT2 Vcc1 OUT1 PW GND1 OUT1 SVR IN1 IN2 S GND IN4 IN3 AC GND OUT3 PW GND3 OUT3 Vcc2 OUT4 MUTE OUT4 PW GND4 DIAGNOSTICS OUT ...

Page 33: ... last of this parts list Ref No Part No Description Remark Ref No Part No Description Remark The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified 8 3 030 864 01 BRACKET IC 9 3 030 974 01 HEAT SINK REG 10 3 030 990 01 CHASSIS 11 1 776 527 61 CORD WITH CONNECTOR ISO POWER 12 3 024 285 11 CUSHION RUBBER F901 1 532 877 11 FUSE BLADE...

Page 34: ...97 01 SHEET BACK 68 3 030 976 01 PLATE LCD LIGHT GUIDE LCD551 1 803 438 11 DISPLAY PANEL LIQUID CRYSTAL 51 3 030 999 01 BUTTON RELEASE 52 3 030 854 01 LEVER SEEK AMS 53 3 935 119 01 SPRING RELEASE 54 3 030 998 01 BUTTON MODE SOUND 55 3 030 977 01 BUTTON 1 6 56 3 030 988 11 BUTTON CD EJECT 57 3 030 993 01 BUTTON SOURCE 58 3 030 853 01 KNOB VOL 59 3 030 852 01 RING 60 3 030 855 01 KNOB D BASS 57 58 ...

Page 35: ...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 SW 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 SW 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...

Page 36: ...ING KR1 TENSION 165 3 018 272 01 WASHER 166 3 931 883 01 SPRING TR TENSION 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 159 A 3277 802 C CHASSIS M COMPLETE ASSY 155 154 151 156 157 158 166 162 16...

Page 37: ...OTOR ASSY SPINDLE M902 A 3291 674 A MOTOR ASSY SLED 201 X 3374 022 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 SW BOARD 206 3 338 737 01 SCREW 2X3 PS 207 1 659 880 11 MOTOR FLEXIBLE BOARD 208 1 659 834 11 SUB BOARD The components identified by mark or dotted line with mark are critical for safety R...

Page 38: ... 061 53 DIODE SML 010YT T86 AMBER D565 8 719 067 77 DIODE SML 010PT T86 GREEN D566 8 719 061 53 DIODE SML 010YT T86 AMBER D566 8 719 067 77 DIODE SML 010PT T86 GREEN D567 8 719 061 53 DIODE SML 010YT T86 AMBER D567 8 719 067 77 DIODE SML 010PT T86 GREEN D568 8 719 061 53 DIODE SML 010YT T86 AMBER D568 8 719 067 77 DIODE SML 010PT T86 GREEN D569 8 719 061 53 DIODE SML 010YT T86 AMBER D569 8 719 067...

Page 39: ...06 00 RES CHIP 2 2K 5 1 8W ROTARY ENCODER RE551 1 475 014 11 ENCODER ROTARY SWITCH S551 1 572 704 31 SWITCH KEY BOARD 6 S552 1 572 704 31 SWITCH KEY BOARD DSPL S553 1 572 704 31 SWITCH KEY BOARD SENS S554 1 572 704 31 SWITCH KEY BOARD SOUND S555 1 572 704 31 SWITCH KEY BOARD MODE S556 1 771 290 11 SWITCH SLIDE 0 SEEK SEEK S557 1 572 704 31 SWITCH KEY BOARD REPEAT S558 1 572 704 31 SWITCH KEY BOARD...

Page 40: ...CT 10uF 20 16V C705 1 124 589 11 ELECT 47uF 20 16V C708 1 124 233 11 ELECT 10uF 20 16V C709 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C712 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C713 1 163 239 11 CERAMIC CHIP 33PF 5 50V C714 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C801 1 163 021 11 CERAMIC CHIP 0 01uF 50V C802 1 163 047 11 CERAMIC CHIP 0 001uF 5 50V C804 1 163 234 11 CERAMIC CHIP 20PF 5 50V C805 1 16...

Page 41: ...ANSISTOR DTA124EKA T146 Q904 8 729 015 11 TRANSISTOR 2SD1802FAST TL Q905 8 729 900 53 TRANSISTOR DTC114EK Q906 8 729 027 31 TRANSISTOR DTA124EKA T146 Q907 8 729 019 00 TRANSISTOR 2SD2394 G Q908 8 729 900 53 TRANSISTOR DTC114EK Q909 8 729 900 53 TRANSISTOR DTC114EK Q910 8 729 920 85 TRANSISTOR 2SD1664 QR Q911 8 729 620 06 TRANSISTOR 2SC3052 EF Q912 8 729 620 06 TRANSISTOR 2SC3052 EF Q913 8 729 900 ...

Page 42: ...AL CHIP 10K 5 1 10W R833 1 216 049 11 RES CHIP 1K 5 1 10W R834 1 216 049 11 RES CHIP 1K 5 1 10W R836 1 216 049 11 RES CHIP 1K 5 1 10W R837 1 249 417 11 CARBON 1K 5 1 4W F R839 1 216 049 11 RES CHIP 1K 5 1 10W R840 1 216 105 00 RES CHIP 220K 5 1 10W R841 1 216 105 00 RES CHIP 220K 5 1 10W R843 1 216 109 00 METAL CHIP 330K 5 1 10W R844 1 216 117 00 METAL CHIP 680K 5 1 10W R845 1 249 429 11 CARBON 10...

Page 43: ...JR16 1 216 296 00 SHORT 0 JR17 1 216 296 00 SHORT 0 JR18 1 216 296 00 SHORT 0 JR19 1 216 296 00 SHORT 0 JR20 1 216 296 00 SHORT 0 JR21 1 216 296 00 SHORT 0 JR22 1 216 296 00 SHORT 0 JR23 1 216 296 00 SHORT 0 JR24 1 216 296 00 SHORT 0 JR25 1 216 296 00 SHORT 0 JR26 1 216 296 00 SHORT 0 JR27 1 216 296 00 SHORT 0 JR28 1 216 296 00 SHORT 0 JR29 1 216 296 00 SHORT 0 JR30 1 216 296 00 SHORT 0 JR31 1 216...

Page 44: ...ES ADJ CERMET 22K RV4 1 238 091 11 RES ADJ CERMET 22K 1 659 834 11 SUB BOARD CONNECTOR CN1 1 770 347 21 CONNECTOR FPC 6P MISCELLANEOUS 11 1 776 527 61 CORD WITH CONNECTOR ISO 210 8 820 010 06 PICK UP OPTICAL KSS 521A K1RP 256 1 776 527 61 CORD WITH CONNECTOR ISO 257 1 465 459 11 ADAPTOR ANTENNA F901 1 532 877 11 FUSE BLADE TYPE AUTO FUSE 10A LCD551 1 803 438 11 DISPLAY PANEL LIQUID CRYSTAL M901 X ...

Page 45: ... 52 CDX 3250 Sony Corporation Personal Mobile Communication Company 9 926 407 11 99B097542 1 Printed in Hungary 1999 2 Published by Quality Assurance Dept ...

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