Sony CDX-GT490U Service Manual Download

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CDX-GT49UM/GT490U/GT490US/GT494U

IC502 TC7WH123FU(TE12R) (MAIN Board (2/3))

VCC

RX/CX

CLR

GND

IC503 NJM2387ADL3 (TE2) (MAIN Board (2/3))

CURRENT

LIMIT

THERMAL

PROTECTION

OVERVOLTAGE

PROTECTION

BAND GAP

REFERENCE

VIN

CONT

VOUT

VADJ

GND

IC001 TEF6617T/V1/S470,518 (MAIN Board (3/3))

AMRFIN 1

AMRFDEC 2

FMIN2 3

FMIN1 4

LOUT 8

ROUT 9

MPXOUT 13

RSSI 14

XTAL2 15

XTAL1 16

GNDAUD 10

GNDRF 5

VCC2 6

AMRFAGC 7

AMIFAGC2 11

MPXIN 12

AMSELOUT2

AMSELOUT1

AMIFAGC1

AMSELIN2

PLL

VCODEC

VREF

SDA

SCL

GNDD

GND

AMSELIN1

DAV N

PLLREF

VCC1

VREGSUP

TUNER

OUTPUT

PLL

TUNING

SYSTEM

I2C BUS

POWER

SUPPLY

STEREO DECODER

HIGH CUT

SOFT MUTE

NOISE BLANKER

SIGNAL

IMPROVEMENT

CONTROL

BANDWIDTH

CONTROL

RDS

DEMODULATOR

AND

DECODER

Summary of Contents for CDX-GT490U

Page 1: ... 26 PV CD player section Signal to noise ratio 120 dB Frequency response 10 20 000 Hz Wow and flutter Below measurable limit USB Player section Interface USB Full speed Maximum current 500 mA Power amplifier section Outputs Speaker outputs sure seal connectors Speaker impedance 4 8 ohms Maximum power output 52 W u 4 at 4 ohms General Outputs Audio outputs terminal front sub rear switchable Power a...

Page 2: ...cause of the potential difference generated by the charged electrostatic load etc on clothing and the human body During repair pay attention to electrostatic break down 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 concent...

Page 3: ...aution not to let solder bridges occur such as on IC pins etc Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder This label is located on the bottom of the chassis 1 SERVICE NOTE 4 2 GENERAL Connections 5 3 DISASSEMBLY 3 1 Sub Panel Assy 9 3 2 CD Mechanism Block 9 3 3 Main Board 10 3 4 Servo Board 10 3 5 Chassis T Sub Assy 11...

Page 4: ...annot be repaired NOTE FOR REPLACEMENT OF THE USB CONNECTOR CN902 To replace the USB connector requires alignment 1 Insert the USB connector into the front panel 2 Place the KEY board on the front panel and align the terminals of the USB connector with the holes in the KEY board 3 Solder the four terminals of the connector NOTE FOR THE 20 PIN CONNECTOR CN901 Do not use alcohol to clean the 20 pin ...

Page 5: ...ar la unidad 4 Al terminal de alimentación de 12 V que recibe energía en la posición de accesorio del interruptor de encendido Notas t Si no hay posición de accesorio conéctelo al terminal de alimentación batería de 12 V que recibe energía sin interrupción Asegúrese de conectar primero el cable de conexión a masa t Si el automóvil incorpora una antena de FM AM en el cristal trasero o lateral consu...

Page 6: ...os terminales de altavoz al chasis del automóvil ni conecte los terminales del altavoz derecho con los del izquierdo t No conecte el cable de conexión a masa de esta unidad al terminal negativo del altavoz t No intente conectar los altavoces en paralelo t Conecte solamente altavoces pasivos Si conecta altavoces activos puede dañar la unidad t Para evitar fallas de funcionamiento no utilice los cab...

Page 7: ... antenna aerial control lead blue supplies 12 V DC when you turn on the tuner t When your car has built in FM AM antenna aerial in the rear side glass connect the power antenna aerial control lead blue or the accessory power supply lead red to the power terminal of the existing antenna aerial booster For details consult your dealer t A power antenna aerial without a relay box cannot be used with t...

Page 8: ...SUB PANEL ASSY Page 9 3 2 CD MECHANISM BLOCK Page 9 SET 3 3 MAIN BOARD Page 10 3 5 CHASSIS T SUB ASSY Page 11 3 6 ROLLER ARM ASSY Page 11 3 7 CHASSIS OP ASSY Page 12 3 8 CHUCKING ARM SUB ASSY Page 12 3 9 SLED MOTOR ASSY Page 13 3 10 OPTICAL PICK UP SECTION Page 14 3 11 OPTICAL PICK UP Page 14 3 4 SERVO BOARD Page 10 ...

Page 9: ...edure in the numerical order shown below 3 1 SUB PANEL ASSY 3 2 CD MECHANISM BLOCK 2 two claws 3 two claws 4 sub panel assy 1 two screws PTT 2 6 u 6 4 CN701 3 1 screw PTT 2 6 u 6 2 screw PTT 2 6 u 6 6 two screws PTT 2 6 u 4 7 bracket CD 8 CD mechanism block 5 CN501 3P ...

Page 10: ...s BTT 2 6 u 5 7 screw PTT 2 6 u 10 8 heat sink 4 two screws P 2 6 u 8 6 screw P 2 6 u 8 5 two screws PTT 2 6 u 10 7 SERVO board SERVO board 3 toothed lock screw M 1 7 u 2 5 2 toothed lock screw M 1 7 u 2 5 1 Remove the eleven solders 6 optical pick up 16 core CN101 4 claw 5 claw gray yellow blue orange red black red white black red white ...

Page 11: ... GT490U GT490US GT494U 11 3 5 CHASSIS T SUB ASSY 3 6 ROLLER ARM ASSY 4 chassis T sub assy 3 claw 1 two screws M 1 7 u 2 5 2 two screws M 1 7 u 2 5 3 washer 4 gear RA1 6 roller arm assy 5 1 spring RAL 2 spring RAR ...

Page 12: ...oil springs damper natural 8 coil spring damper green 6 chassis OP assy 5 1 tension spring KF 2 gear LE1 3 lever D 4 slider R 3 chucking arm sub assy 2 1 spring Note Have this portion receive the chassis Note Have this portion receive the chassis Note Be careful not to touch the turn table ...

Page 13: ...urn table 2 three serration screws M 2 u 3 three serration screws M 2 u 3 Note Place the stand with care not to touch the turn table Note Never remove these parts since they were adjusted bearing R bearing F Note for Assembly Note Take care to prevent the chassis from being bent when tightening the three machine screws ...

Page 14: ... PICK UP SECTION 3 11 OPTICAL PICK UP 1 2 optical pick up section Note Be careful not to touch the lens and hologram terminal when removing the optical pick up section 1 tapping screw P 1 4 2 leaf spring OPS 3 rack 5 optical pick up 4 lead screw assy ...

Page 15: ...401 RESET 5 3 OUT FL OUT FL 9 7 OUT RL OUT RL 27 R CH ANT REM 35 VP BATT 20 VP1 6 VP2 30 AUDIO B 31 33 SERVO 3 3V MECHA 6V 34 PANEL B 34 32 OUT_FRCH 27 SA_CLK 28 SA_DA 29 SA_OUT OUT_RRCH R CH 31 R S_OUT_LCH 13 ZAPPIN1 16 ZAPPIN2 4 SCL AUDIO 8 5V SERVO 3 3V MECHA 6V PANEL B 2 SDA 16 BEEP 22 STB 25 DIAG 7 10 12 11 16 1 9 2 4 3 6 37 38 SCL SDA I2C_SCK I2C_SIO I2C_SCK I2C_SIO I2C_SCK I2C_SIO I2C_SCK I...

Page 16: ...RCS REMOTE CONTROL SIGNAL RECEIVER IC902 Q907 LED DRIVER Q901 LCD BACK LIGHT DIMMER CONTROL LED903 905 907 909 910 912 914 916 919 921 932 934 LSW905 913 LED924 925 928 928 RING ILLUMINATION LED901 LCD BACK LIGHT 3 USB POWER CONTROL SWITCH IC503 99 SYNC_OUT 24 USB_OVER 21 USB_ON BATT 100 DD_ON VIN VBUS 1 3 VOUT D505 L502 DC DC CONVERTER CONTROL IC502 CD MECHANISM UNIT MG 101Y 2 2 USB D USB D 3 CLR...

Page 17: ...noted due to normal production tolerances Circled numbers refer to waveforms Signal path J CD F FM f AM L AUX c USB Abbreviation AR Argentina model EA Saudi Arabia model MX Mexican model For Printed Wiring Boards Note X Parts extracted from the component side Y parts extracted from the conductor side a Through hole Pattern from the side which enables seeing The other layers patterns are not indica...

Page 18: ...217 JW218 JW219 D401 D403 D404 Q501 Q502 Q503 JW220 Q504 B C E JW221 Q505 JW222 JW224 JW225 L301 JW226 JW227 JW228 D410 JW229 D411 Q701 B C E JW230 JW231 L501 JW232 L502 JW233 L503 JW234 JW235 JW236 D806 JW237 D807 JW238 JW239 D809 JW240 D810 JW241 D811 JW242 D812 JW243 JW244 JW245 JW246 JW247 JW248 JW249 JW250 JW251 JW252 JW253 JW254 JW255 FB101 JW256 JW257 JW258 JW259 JW260 JW261 FB301 JW262 JW2...

Page 19: ...C402 3 3V REG CONT GND NOISE VOUT VIN 10k R832 C815 1000p 0 22 C404 0 1 C402 4 3 2 1 PST8228UL IC403 RESET 0 01 C401 J801 0 01 C406 22 R313 1A4 A2 D104 1A4 A2 D105 1A4 A2 D204 1A4 A2 D205 1A4 A2 D302 1A4 A2 D303 1A4 A2 D304 1A4 A2 D305 2SC3052EF T1 LEF Q808 RT1N141C TP 1 Q802 RT1N141C TP 1 Q807 R826 0 R827 220k R801 0 D806 MAZ8075GMLS0 R815 1k R802 0 IC301 TDA8588AJ N2 R1 1 TAB 2 SDA 3 OUT FL 4 SC...

Page 20: ...1 2 2uH FB701 0 01 C421 0 01 C424 0 01 C423 0 01 C704 0 01 C416 0 01 C429 LRB751V 40T1G D401 LBAT54ALT1G D701 10V 330 C514 1 2 3 4 5 NJM2387ADL3 TE2 IC503 USB POWER CONTROL SWITCH RT1N141C TP 1 Q504 RT1N141C TP 1 Q505 MAZ8039GLLS0 D510 1 C519 0 1 C516 0 1 C513 MAZ8056GMLS0 D505 10V C523 100 10V 220 C518 12k R503 0 5 56k R518 0 5 10k R520 0 5 3 3k R521 FB705 0 R512 100 R462 100 R460 100 R464 100 R4...

Page 21: ...220 C317 C524 0 1 D411 0 1 10 R526 10 R527 LTC614TKFP8T146 Q102 LTC614TKFP8T146 Q202 LTC614TKFP8T146 Q104 LTC614TKFP8T146 Q204 220 R106 220 R116 220 R206 220 R216 24 23 22 21 20 19 18 17 28 27 26 31 32 34 30 29 25 16 15 14 13 12 11 10 9 33 8 7 35 37 6 36 5 39 40 38 3 4 1 2 20 19 18 23 24 26 22 21 17 16 15 14 13 12 11 10 9 25 8 7 27 29 6 28 5 31 32 30 3 4 1 2 BD3447AFV E2 IC302 ELECTRONIC VOLUME BU...

Page 22: ...33 48 64 1 19 2 20 FB902 FB903 FB901 W001 W002 W003 BRN RED ORG BRN RED ORG IC901 1 52 LSW905 LSW906 LSW907 LSW908 LSW909 LSW910 LSW911 LSW912 LSW913 LED901 LED903 LED905 LED910 LED912 LED914 LED916 LED919 LED921 LE D9 24 L E D 9 2 5 L E D 9 2 8 L E D 9 2 9 L E D 9 3 2 L E D 9 0 7 L E D 9 0 9 L E D 9 3 4 CN902 R922 R923 R924 R929 R930 R935 R948 S901 R962 S902 S903 S904 S905 S906 R967 S907 R974 R97...

Page 23: ...22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 52 2 4 49 51 3 50 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 20P CN901 GND USB_VBUS GND USB_GND KEY_GND USB_D AUX_LCH USB_D KEY1 AUX_RCH RE1 AUX_GND RE0 KEY0 LCD_CE SIRCS LCD_CLK LCD_DATA ILL_ B PANEL NOSE_SW R935 3 3k R962 150 C910 100p C911 100p C909 100p C912 0 1 R942 R943 R949 R948 LED912 LED910 LED914 R95...

Page 24: ... 25 27 29 31 33 35 37 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 TAB OUT FL OUT FL OUT RL OUT RL IN RL S GND IN RR OUT RR OUT RR OUT FR OUT FR DIAG ANT REM AMP REM SERVO 3 3V MECH 6V VP BU B I2C_SIO I2C_SCK VP2 P GND1 SVR IN FL IN FR BEEP P GND3 VP1 STB P GND4 RST CRES AUDIO B 8 5V GND PANEL B CBU FL RL RR VP FR I 2 C BUS 1 2 3 5 4 CONT GND NOISE VIN VOUT OVERHEAT OVERCURRENT PROTECTION BAN...

Page 25: ... MAIN Board 3 3 AMRFIN 1 AMRFDEC 2 FMIN2 3 FMIN1 4 LOUT 8 ROUT 9 MPXOUT 13 RSSI 14 XTAL2 15 XTAL1 16 GNDAUD 10 GNDRF 5 VCC2 6 AMRFAGC 7 AMIFAGC2 11 MPXIN 12 AMSELOUT2 32 AMSELOUT1 31 AMIFAGC1 30 AMSELIN2 29 PLL 25 VCODEC 24 VREF 20 SDA 19 SCL 18 GNDD 17 GND 23 AMSELIN1 28 DAVN 27 PLLREF 26 VCC1 22 VREGSUP 21 AM TUNER FM TUNER OUTPUT PLL TUNING SYSTEM I2CBUS POWER SUPPLY STEREODECODER HIGHCUT SOFTM...

Page 26: ...33 34 35 20 19 12 11 18 17 1 BUS_LCH BUS_RCH TU_LCH TU_RCH CD_RCH AUX_LCH AUX_GND AUX_RCH PD_R PD_G PD_L FP1 FN2 FP2 EBIAS DS2_L DS1_L DS3_L FN1 2 3 4 CD_LCH 5 14 13 16 15 10 9 8 7 6 I2CBUS LOGIC VCO FADER FADER FADER HPF LPF GND ISOAMP GND ISOAMP 180 0 3BANDP EQ TONECONTROL 7BAND SPECTRUMANALYZER LEVELMETER EFFECT VOLUME MUTE INPUTGAIN INPUTSELECTOR 3SIGLE ENDAND3STEREOISO FADER FADER SPEANA LVLM...

Page 27: ...cessory power supply detect signal input 30 TEL_ATT I Telephone attenuator detect signal input Fixed at L in this set 31 ATT O Audio mute control signal output 32 AVCC A D converter power supply pin 3 3 V 33 AVRH A D converter external reference power supply pin 3 3 V 34 RC_IN1 I Rotary commander shift key signal input 1 35 AVSS Ground for A D converter 36 QUALITY I Not used Open 37 VSM I S meter ...

Page 28: ...O Not used Open 77 FLASH_EN0 I Flash writer programming wake up signal input Fixed at L 78 FLASH_EN1 I Flash writer programming wake up signal input 79 to 81 NCO O Not used Open 82 TU_ATTIN O Not used Open 83 BU_CHECK I Back up power supply detect signal input 84 EQ TYPE_SEL I Equalizer type setting signal input L general model 85 to 89 NCO O Not used Open 90 VCC Power supply pin 3 3 V 91 VSS Grou...

Page 29: ...7 685 794 09 SCREW PTT 2 6X10 S Ref No Part No Description Remark Ref No Part No Description Remark Note XX and X mean standardized parts so they may have some difference from the original one Items marked are not stocked since they are seldom required for routine ser vice Some delay should be anticipated when ordering these items The mechanical parts with no reference number in the exploded views...

Page 30: ...T49UM 54 3 251 320 01 EMBLEM NO 2 5 SONY 55 X 2514 264 1 KNOB VOL SV ASSY 56 2 639 881 01 SPRING RELEASE 57 1 780 789 12 CONDUCTIVE BOARD CONNECTION 58 4 144 557 01 ILLUMINATOR LCD 59 4 141 754 01 PANEL BACK 60 3 250 543 21 SCREW B P TITE M2 61 X 2187 544 2 CASE ASSY for FRONT PANEL CN902 1 822 798 11 CONNECTOR USB 6P USB LCD901 1 802 952 11 DISPLAY PANEL LIQUID CRYSTAL RE901 1 479 902 32 ENCODER ...

Page 31: ...ING 106 3 352 758 31 SCREW M1 7X2 5 TOOTHED LOCK 107 A 1555 002 A SERVO BOARD COMPLETE 108 2 134 636 71 SCREW M1 7X2 5 5 3 CD MECHANISM SECTION MG 101Y 188 Q Ref No Part No Description Remark Ref No Part No Description Remark not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied 101 108 108 102 103 105 104 107...

Page 32: ... 310DTT86 ILLUMINATOR GT49UM LED909 6 502 877 01 LED SML 310VTT86TJ ILLUMINATOR GT490U GT490US GT494U LED909 8 719 053 08 LED SML 310DTT86 ILLUMINATOR GT49UM LED910 6 502 877 01 LED SML 310VTT86TJ M SEEK GT490U GT490US GT494U LED910 8 719 053 08 LED SML 310DTT86 M SEEK GT49UM LED912 6 502 877 01 LED SML 310VTT86TJ SEEK m GT490U GT490US GT494U LED912 8 719 053 08 LED SML 310DTT86 SEEK m GT49UM LED9...

Page 33: ...TAL CHIP 220 5 1 10W GT49UM R899 1 216 814 11 METAL CHIP 270 5 1 10W GT490U GT490US GT494U R900 1 216 809 11 METAL CHIP 100 5 1 10W GT490U GT490US GT494U R900 1 216 812 11 METAL CHIP 180 5 1 10W GT49UM R904 1 216 857 11 METAL CHIP 1M 5 1 10W R905 1 216 809 11 METAL CHIP 100 5 1 10W R906 1 216 811 11 METAL CHIP 150 5 1 10W R907 1 216 811 11 METAL CHIP 150 5 1 10W R908 1 216 813 11 METAL CHIP 220 5 ...

Page 34: ... CHIP 0 1uF 10 16V C26 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C27 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C28 1 126 947 11 ELECT 47uF 20 35V C101 1 164 739 11 CERAMIC CHIP 560PF 5 50V C103 1 126 961 11 ELECT 2 2uF 20 50V C104 1 163 251 11 CERAMIC CHIP 100PF 5 50V C105 1 126 960 11 ELECT 1uF 20 50V C106 1 126 964 11 ELECT 10uF 20 50V C107 1 163 251 11 CERAMIC CHIP 100PF 5 50V C108 1 126 964 11 ELECT...

Page 35: ...07 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C803 1 100 385 91 CERAMIC CHIP 0 47uF 25V C804 1 100 385 91 CERAMIC CHIP 0 47uF 25V C805 1 163 009 91 CERAMIC CHIP 0 001uF 10 50V C806 1 163 009 91 CERAMIC CHIP 0 001uF 10 50V C807 1 112 302 11 ELECT 3300uF 20 16V C808 1 115 340 11 CERAMIC CHIP 0 22uF 10 25V C810 1 115 340 11 CERAMIC CHIP 0 22uF 10 25V C811 1 115 340 11 CERAMIC CHIP 0 22uF 10 25V C812 1 1...

Page 36: ...1 TRANSISTOR LTC614TKFP8T146 Q202 6 551 856 01 TRANSISTOR LTC614TKFP8T146 Q203 8 729 027 44 TRANSISTOR DTC114TKA T146 Q204 6 551 856 01 TRANSISTOR LTC614TKFP8T146 Q303 8 729 027 43 TRANSISTOR DTC114EKA T146 Q304 8 729 027 23 TRANSISTOR DTA114EKA T146 Q305 8 729 027 23 TRANSISTOR DTA114EKA T146 Q401 8 729 027 43 TRANSISTOR DTC114EKA T146 Q402 8 729 027 23 TRANSISTOR DTA114EKA T146 Q501 8 729 027 43...

Page 37: ... METAL CHIP 100 5 1 10W R460 1 216 809 11 METAL CHIP 100 5 1 10W R461 1 216 809 11 METAL CHIP 100 5 1 10W R462 1 216 809 11 METAL CHIP 100 5 1 10W R463 1 216 809 11 METAL CHIP 100 5 1 10W R464 1 216 809 11 METAL CHIP 100 5 1 10W R465 1 216 864 11 SHORT CHIP 0 R466 1 216 864 11 SHORT CHIP 0 R467 1 216 864 11 SHORT CHIP 0 R468 1 216 845 11 METAL CHIP 100K 5 1 10W R501 1 216 842 11 METAL CHIP 56K 5 1...

Page 38: ...RUCTION ENGLISH SPANISH EXCEPT EA 4 152 752 51 MANUAL INSTRUCTION ENGLISH ARABIC PERSIAN EA 4 152 753 41 MANUAL INSTRUCTION INSTALL ENGLISH SPANISH E IND MX 4 152 753 51 MANUAL INSTRUCTION INSTALL ENGLISH SPANISH AR 4 152 753 61 MANUAL INSTRUCTION INSTALL ENGLISH ARABIC PERSIAN EA X 2187 544 2 CASE ASSY for FRONT PANEL PARTS FOR INSTALLATION AND CONNECTIONS 151 X 2179 431 2 FRAME ASSY FITTING 152 ...

Page 39: ...MEMO CDX GT49UM GT490U GT490US GT494U 39 ...

Page 40: ...ing the version allows you to jump to the revised page Also clicking the version at the top of the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2009 09 New 1 1 2009 11 Addition of Mexican model of CDX GT490US ...

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