Sony CDX-2500R, Service Manual

Page 1: ...0 6 mono Separation 35 dB at 1 kHz Frequency response 30 15 000 Hz MW LW Tuning range MW 531 1 602 kHz LW 153 281 kHz Aerial terminal External aerial connector Intermediate frequency 10 7 MHz 450 kHz Sensitivity MW 30 µV LW 50 µV SPECIFICATIONS Power amplifier section Outputs Speaker outputs sure seal connectors Speaker impedance 4 8 ohms Maximum power output 45 W 4 at 4 ohms General Outputs Power...

Page 2: ...tic 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 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 m...

Page 3: ... 1 IC Pin Description 20 4 2 Block Diagram CD Section 22 4 3 Block Diagram Tuner Section 23 4 4 Block Diagram Display Section 24 4 5 Circuit Boards Location 25 4 6 Printed Wiring Boards CD Mechanism Section 26 4 7 Schematic Diagram CD Mechanism Section 27 4 8 Printed Wiring Board Main Section 28 4 9 Schematic Diagram Main Section 1 3 30 4 10 Schematic Diagram Main Section 2 3 31 4 11 Schematic Dia...

Page 4: ...4 SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 5: ...5 ...

Page 6: ...6 ...

Page 7: ...7 ...

Page 8: ...8 ...

Page 9: ...9 ...

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

Page 11: ...2 6x6 3 PTT 2 6x6 6 PTT 2 6x6 2 PTT 2 6x6 4 CNP700 8 bracket M D 5 CD mechanism block 1 PTT 2 6x6 1 PTT 2 6x6 3 PTT 2 6x6 5 claw 4 claw 6 sub panel 1 assy 2 PTT 2 6x6 2 4 CD MECHANISM BLOCK 2 3 SUB PANEL 1 ASSY ...

Page 12: ...12 2 PTT 2 6x12 4 heat sink 1 PTT 2 6x8 3 PTT 2 6x8 4 ground point screws PTT 2 6x6 5 ground point screw PTT 2 6x6 1 PTT 2 6x8 6 MAIN board 3 PTT 2 6x8 2 PTT 2 6x8 2 5 MAIN BOARD 2 6 HEAT SINK ...

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

Page 14: ...r 3 roller assy washer arm arm washer washers 7 PS 2x4 1 CN3 3 Removal the solders 4 Removal the solders 5 P 2x3 6 loading motor assy 9 SERVO board 2 CN2 8 PS 2x4 2 9 SERVO BOARD 2 10 ROLLER ASSY When installing take note of the positions arm roller and washers Fig 1 ...

Page 15: ...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 2 11 CHASSIS OP O S ASSY 2 12 OPTICAL PICK UP BLOCK ...

Page 16: ...el and MW Auto Scan Stop Level adjustments can be performed easier than it in ordinary procedure Set the Test Mode 1 Set the OFF mode 2 Push the preset 4 button 3 Push the preset 5 button 4 Press the preset 1 button for more than two seconds 5 Then the display indicates all lights the test mode is set Release the Test Mode 1 Push the OFF button Note on Adjustment The adjustments of tuner section s...

Page 17: ... L CH Adjust RV4 on TU601 for nimum reading R CH R CH C D L CH R CH Adjust RV4 on TU601 for minimum reading L CH stereo separation A B R CH stereo separation C D The separations of both channels should be equal Specification Separation more than 28 dB Adjustment Location See page 18 Procedure Carrier frequency 98 00 MHz Output level 35 dB 56 2 µV Mode mono Modulation no modulation Procedure 1 Set ...

Page 18: ... frequency 999 kHz 30 amplitude modulation by 1 kHz signal output level 33 dB 44 7 µV Procedure 1 Set to the test mode See page 16 2 Push the SOURCE button 3 Push the MODE button and set to MW Display 4 Push the preset 3 button Display 5 Adjust with the volume RV1 on TU601 so that the MW indication turns to MW0 indication on the display window But in case of already indicated MW0 turn the RV1 so t...

Page 19: ...hanical center 2 Check whether operation noise while noise type caused by the 2 axis device lens section of the optical pick up is abnormally loud If the operation noise is too loud turn RV4 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 Adjustm...

Page 20: ...4 SIRCS I Remote commander input 25 TXT SI I CD TEXT data input Not used in this set 26 NIL Not used Connect to ground in this set 27 TXT CKO O CD TEXT data read clock output Not used in this set 28 CLOK25 O CD signal processing serial clock output 29 SYSRST O System reset output 30 DEEMPH O De emphasis output 31 AMP ATT O Power amplifier attenuator control output 32 MD ON O CD mechanism power con...

Page 21: ...ramic oscillator input 32 kHz 75 SCOR I SCOR signal detection input 76 BU IN I Backup power detection input 77 DQSY I CD TEXT data setting completion signal detection input Not used in this set 78 CD SENS I CD SENS signal detection input 79 NIL I Key input acknowledge 80 TEL ATT I Telephone attenuate detection input 81 ST MONO I O Tuner stereo signal detection input forced monaural output 82 SEEKO...

Page 22: ...ACKING CH1 IN LEVEL SHIFT 19 18 17 FOCUS M902 SLED CH2 CH2 CH1 CH1 CH3 IN LEVEL SHIFT 24 13 14 CH3 CH3 M M901 SPINDLE CH4 IN LEVEL SHIFT 3 CTL2 5 12 CH4 M M903 LOADING FWD LEVEL SHIFT 6 REV 7 10 CH5 M 49 SENS 46 SQSO 47 SQCK 51 DATA 52 XLAT 53 CLOK 43 SCOR 5 BCKIN 6 LRCIN 4 CLKO 19 XTI 1 XTO 20 RSTB 15 12 VOUTL 9 VOUTR 17 MC DM1 X700 16 9344MHz 3 SCOR CLOK25 XLAT25 DATA25 SQ CKO SQ SI CD SENS GFS ...

Page 23: ...MP Q618 RV801 FM RDS S METER LP OUT 28 LCL DX 5 IF AM 14 IF FM 15 FM IN 24 AM IN 25 OSC IN 9 OSC OUT 10 S METER 20 XO 4 XI 5 FM DET 16 5 1 SCL 12 SDA 13 SSTOP 16 SDA 9 SCL 10 MPTH 2 DAVN 8 PLL IC601 MPDH 52 DAVN 67 QUALITY 50 NS MASK 55 X601 10 25MHz X602 4 3MHz RDS DECODER IC602 NOISE FILTER IC603 NOISE CONTROL Q804 RDS POWER CONTROL Q604 605 TU5V FM8V RDS5V MUTE CONTROL Q401 402 D402 MUTE Q111 M...

Page 24: ... REG Q912 CD POWER CONTROL Q907 908 ANT POWER CONTROL Q924 925 95 COM8V ON 35 CD ON 32 47 48 MD ON BATT 101 108 RE IN0 106 RE IN1 KEY IN1 KEY IN2 79 NIL 37 NIL 61 IN1 49 IN0 107 ACC IN 111 ANT REM 109 PW ON D910 BATT D807 5V REG Q909 CD POWER CONTROL Q910 911 BATT BATT BATT ACC D909 BATT D940 8V CD5V AMP ON 1 2 4 VCC AMP B 5 BU B AMP B ANT B MD 8V BU5V POWER SUPPLY IC901 64 63 62 LCD501 PL501 502 ...

Page 25: ... 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 a Through hole b Pattern from the side which enables seeing The other layer s patterns a...

Page 26: ...26 26 CDX 2500R 4 6 PRINTED WIRING BOARDS CD MECHANISM SECTION Page 29 Ref No Location IC1 D 2 IC2 E 5 IC3 B 2 Q1 F 5 Q2 F 6 Semiconductor Location ...

Page 27: ...C DIAGRAM CD MECHANISM SECTION Refer to page 25 for Waveforms Refer to page 35 for IC Block Diagrams Note Voltage and waveforms are dc with respect to ground under no signal conditions no mark CD PLAY Impossible to measure Page 30 ...

Page 28: ... 9 D920 B 9 D930 C 9 D940 D 10 IC401 F 6 IC601 F 3 IC602 I 3 IC603 G 3 IC801 J 7 Q110 B 4 Q111 B 4 Q210 C 4 Q211 C 5 Q615 F 5 Q618 J 1 Q905 C 10 Q906 H 5 Q907 I 12 Q908 I 12 Q913 G 13 Q914 K 9 Q915 K 9 Q916 C 9 Q917 C 10 Q918 C 10 Q919 G 13 Q924 D 12 Q925 D 11 Q940 D 11 Semiconductor Location side A Ref No Location ...

Page 29: ...2 J 12 Q903 I 13 Q904 G 13 Q909 I 12 Q910 H 13 Q911 H 12 Q912 H 13 D402 C 3 D404 D 8 D405 D 8 D406 C 7 D407 D 8 D408 C 8 D409 C 8 D410 C 8 D411 C 8 D601 F 5 D604 E 5 D702 F 12 D807 B 13 D823 A 14 D824 A 14 D856 K 13 D857 K 12 D858 J 12 D859 J 12 D860 J 11 D861 J 10 D862 K 12 D863 K 11 D864 K 10 D865 K 10 D870 I 7 D901 E 12 D902 D 12 D903 D 13 D904 E 13 D910 H 5 D912 H 13 D913 H 12 Semiconductor Lo...

Page 30: ...DX 2500R 4 9 SCHEMATIC DIAGRAM MAIN SECTION 1 3 Refer to page 37 for IC Block Diagrams Note Voltage is dc with respect to ground under no signal detuned condition no mark FM MW CD PLAY Page 31 Page 32 Page 27 ...

Page 31: ...31 CDX 2500R 4 10 SCHEMATIC DIAGRAM MAIN SECTION 2 3 Refer to page 38 for IC Block Diagrams Note Voltage is dc with respect to ground under no signal detuned condition no mark FM MW CD PLAY Page 30 Page 32 ...

Page 32: ...DX 2500R 4 11 SCHEMATIC DIAGRAM MAIN SECTION 3 3 Refer to page 38 for IC Block Diagrams Note Voltage is dc with respect to ground under no signal detuned condition no mark FM MW CD PLAY Page 33 Page 30 Page 31 ...

Page 33: ...33 33 4 12 SCHEMATIC DIAGRAM DISPLAY SECTION Note Voltage is dc with respect to ground under no signal detuned condition no mark FM Page 32 CDX 2500R ...

Page 34: ... PRINTED WIRING BOARD DISPLAY SECTION Page 29 LED501 B 3 LED502 B 2 LED503 B 1 LED504 C 2 LED505 C 3 D501 B 10 D503 B 10 D506 B 11 D507 C 10 D508 C 10 IC501 C 8 Semiconductor Location Ref No Location Ref No Location SIDE B ...

Page 35: ...T XLTO DATO 52 53 54 55 56 57 58 59 60 61 62 63 64 51 SERVO AUTO SEQUENCER 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 44 DATA XRST SENS MUTE SQCK SQSO EXCK SBSO SCOR VSS WFCK EMPH DOUT C4M FSTT XTSL XTAO XTAI MNTO 20 21 22 23 24 25 26 27 29 30 31 32 28 LRCK PCMD BCLK GTOP XUGF XPCK VDD GFS RFCK C2PO XROF MNT3 MNT1 1 2 3 4 5 6 7 8 9 10 11 12 16 17 18 19 13 14 15 FOK MON MDP MDS LOCK TEST FI...

Page 36: ...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 TG2 TM7 TM3 T...

Page 37: ...OL CIRCUIT SUBWOOFER OUT FADER SUBWOOFER LP IIC BUS DIGITAL CONTROL CIRCUIT POWER SUPPLY FRONT FADER FRONT FADER REAR FADER REAR FADER VOICE BANDPASS HP LP SDA SCL 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 26 27 28 3 4 5 6 7 18 19 20 17 16 15 14 8 9 10 13 12 11 2 1 CLK CONTROL INPUT INTERFACE DIGITAL FILTER 5LEVE DAC LOWPASS FILTER CMOS AMP 5LEVEL DAC LOWPASS FILTER CMOS AM...

Page 38: ...OUT NC SCL SDA IF AM LPOUT VDD2 GND AM AM IN FM IN NC GND D VDD1 ADDR HFREF AMOSC DOUT INLOCK SSTOP IF FM IC601 TDA7427AD1TR 11 12 13 10 9 8 7 6 5 4 3 1 2 20 18 17 16 15 14 19 PAUSE DETECTOR INTERFACE REGISTER RDS RDBS DECODER OSCILLATOR AND CLOCK TEST CONTROL MULTI PATH DETECTOR RDS RDBS DEMODULATOR CLOCKED COMPARATOR POWER SUPPLY AND RESET 57kHz 8th ORDER BAND PASS SIGNAL QUALITY DETECTOR IIC BU...

Page 39: ...rials and hardware mark list are given in the last of this parts list The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Ref No Part No Description Remark 5 1 CHASSIS SECTION R Ref No Part No Description Remark R 1 X 3376 728 1 PANEL 1 ASSY SUB 2 X 3377 993 1 LOCK ASSY 3 X 3376 729 1 COVER ASSY 4 3 030 876 01 CHASSIS MAIN ...

Page 40: ...410 01 BUTTON MODE SOUND 55 3 030 872 01 BUTTON 1 10 56 3 030 873 21 BUTTON CD EJECT 57 3 025 315 12 BUTTON SOURCE 58 3 019 547 21 KNOB VOL 59 3 019 548 01 RING 60 3 019 543 21 KNOB D BASS 61 X 3376 730 1 HOLDER LCD ASSY 62 3 030 879 01 BRACKET LCD 63 3 032 198 01 SHEET E 64 3 032 199 01 SHEET ESD 65 3 032 289 01 SHEET DIFFUSION 5 66 3 030 863 01 PANEL FRONT BACK 67 3 030 997 01 SHEET BACK 68 X 33...

Page 41: ...Y 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 110 3 931 902 04 ARM ROLLER 111 3 936 756 01 ROLLER D 112 3 321 393 01 WASHER STOPPER 113 3 939 139 01 SPACER 114 3 931 916 01 SPRING RA TENSION 115 A 3309 227 A SERVO BOARD COMPLETE 11...

Page 42: ...ER 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 160 3 931 883 01 SPRING TR 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...

Page 43: ... 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 209 3 909 607 01 SCREW 0210 8 820 010 06 PICK UP OPTICAL KSS 521A K1RP 211 3 931 834 01 SPRING FEED PLATE 212 1 659 881 11 PICK UP FLEXIBLE...

Page 44: ...S TE17 6 2B D507 8 719 069 56 DIODE UDZS TE17 6 2B D508 8 719 069 56 DIODE UDZS TE17 6 2B IC IC501 8 759 366 34 IC LC75824E JUMPER RESISTOR JR512 1 216 295 00 SHORT 0 JR550 1 216 295 00 SHORT 0 JR551 1 216 295 00 SHORT 0 GREEN JR552 1 216 295 00 SHORT 0 GREEN LIQUID CRYSTAL DISPLAY LCD501 1 803 440 11 DISPLAY PANEL LIQUID CRYSTAL DIODE LED501 8 719 987 45 LED CL 155Y PG CD TL LED502 8 719 987 45 L...

Page 45: ... 5K 5 1 10W R517 1 216 057 00 METAL CHIP 2 2K 5 1 10W R518 1 216 061 00 METAL CHIP 3 3K 5 1 10W R519 1 216 065 11 RES CHIP 4 7K 5 1 10W R520 1 216 069 00 METAL CHIP 6 8K 5 1 10W R521 1 216 043 11 RES CHIP 560 5 1 10W R522 1 216 045 00 METAL CHIP 680 5 1 10W R523 1 216 045 00 METAL CHIP 680 5 1 10W R524 1 216 049 11 RES CHIP 1K 5 1 10W R525 1 216 053 00 METAL CHIP 1 5K 5 1 10W R526 1 216 053 00 MET...

Page 46: ... 20 16V C606 1 124 584 00 ELECT 100uF 20 10V C607 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C608 1 126 295 11 ELECT 10uF 20 35V C609 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C610 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C611 1 163 019 00 CERAMIC CHIP 0 0068uF 10 50V C612 1 164 344 11 CERAMIC CHIP 0 068uF 10 25V C613 1 163 019 00 CERAMIC CHIP 0 0068uF 10 50V C614 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V...

Page 47: ...1 CERAMIC CHIP 0 01uF 10 50V JACK CNJ600 1 764 808 21 JACK ANTENNA CNP802 1 566 822 41 JACK REMOTE IN CONNECTOR CNP501 1 774 701 11 PIN CONNECTOR 16P CNP700 1 764 617 12 PIN CONNECTOR PC BOARD 30P CNP800 1 764 422 11 PLUG CONNECTOR 12P DIODE D402 8 719 109 71 DIODE MTZJ T 77 3 9A D403 8 719 914 43 DIODE DAN202K T 146 D404 8 719 200 82 DIODE 11ES2 TA1B D405 8 719 200 82 DIODE 11ES2 TA1B D406 8 719 ...

Page 48: ...8 729 901 00 TRANSISTOR DTC124EKA T146 Q618 8 729 120 28 TRANSISTOR 2SC2412K T 146 R Q804 8 729 901 00 TRANSISTOR DTC124EKA T146 Q901 8 729 027 31 TRANSISTOR DTA124EKA T146 Q902 8 729 901 00 TRANSISTOR DTC124EKA T146 Q903 8 729 019 00 TRANSISTOR 2SD2394 G Q904 8 729 019 00 TRANSISTOR 2SD2394 G Q905 8 729 900 53 TRANSISTOR DTC114EKA T146 Q906 8 729 901 00 TRANSISTOR DTC124EKA T146 Q907 8 729 027 31...

Page 49: ... 4 7K 5 1 10W R644 1 216 057 00 METAL CHIP 2 2K 5 1 10W R645 1 216 057 00 METAL CHIP 2 2K 5 1 10W R646 1 216 073 00 METAL CHIP 10K 5 1 10W R647 1 216 057 00 METAL CHIP 2 2K 5 1 10W R648 1 216 295 00 SHORT 0 R649 1 216 097 11 RES CHIP 100K 5 1 10W R651 1 216 025 11 RES CHIP 100 5 1 10W R694 1 216 017 11 RES CHIP 47 5 1 10W R695 1 216 097 11 RES CHIP 100K 5 1 10W R699 1 216 075 00 METAL CHIP 12K 5 1...

Page 50: ... VIBRATOR CERAMIC 3 68MHz X801 1 567 098 41 VIBRATOR CRYSTAL 32kHz A 3309 227 A SERVO BOARD COMPLETE CAPACITOR C1 1 107 823 11 CERAMIC CHIP 0 47uF 10 16V C2 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C3 1 135 145 11 TANTALUM CHIP 0 47uF 10 35V C4 1 163 251 11 CERAMIC CHIP 100PF 5 50V C5 1 164 182 11 CERAMIC CHIP 0 0033uF 10 50V C6 1 163 011 11 CERAMIC CHIP 0 0015uF 10 50V C7 1 163 809 11 CERAMIC CHIP...

Page 51: ... RES CHIP 100K 5 1 10W R3 1 216 121 11 RES CHIP 1M 5 1 10W R4 1 216 061 00 METAL CHIP 3 3K 5 1 10W R5 1 216 061 00 METAL CHIP 3 3K 5 1 10W R6 1 216 073 00 METAL CHIP 10K 5 1 10W R7 1 216 009 11 RES CHIP 22 5 1 10W R8 1 216 119 00 METAL CHIP 820K 5 1 10W R9 1 216 119 00 METAL CHIP 820K 5 1 10W R10 1 216 073 00 METAL CHIP 10K 5 1 10W R11 1 216 073 00 METAL CHIP 10K 5 1 10W R14 1 216 085 00 METAL CHI...

Page 52: ... 3 043 127 21 MANUAL INSTRUCTION FRENCH GERMAN DUTCH ITALIAN GREEK AEP 3 043 127 31 MANUAL INSTRUCTION GERMAN G 3 043 127 41 MANUAL INSTRUCTION ENGLISH CZECH POLISH TURKISH RUSSIAN SE 3 043 128 11 MANUAL INSTRUCTION INSTALL ENGLISH SPANISH SWEDISH PORTUGUESE AEP UK 3 043 128 21 MANUAL INSTRUCTION INSTALL FRENCH GERMAN DUTCH ITALIAN GREEK AEP G 3 043 128 31 MANUAL INSTRUCTION INSTALL ENGLISH CZECH ...