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CDX-GT50W/GT500/
GT500EE/GT550
SERVICE MANUAL
US Model
CDX-GT50W/GT500
Ver. 1.0 2005. 12
Canadian Model
AEP Model
UK Model
CDX-GT500
E Model
CDX-GT550
East European Model
CDX-GT500EE
Chinese Model
Photo: CDX-GT500
CDX-GT550
• The tuner and CD sections have no adjustments.
Model Name Using Similar Mechanism CDX-A250/A250EE
CD Drive Mechanism Type MG-611WA-186//Q
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
Optical Pick-up Name KSS1000E
23.2 watts per channel m
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CDX-GT50W/GT500/GT500EE/GT550 Power amplifier section NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK Outputs: Speaker outputs (sure seal connectors) OR BASE UNIT Speaker impedance: 4 – 8 ohms The laser diode in the optical pick-up block may suffer electrostatic Maximum power output: 52 W × 4 (at 4 ohms) breakdown because of the potential difference generated by the General charged electrostatic load, etc. on clothing and the human body. Outputs: Audio outputs terminal (front/rear) During repair, pa
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CDX-GT50W/GT500/GT500EE/GT550 • CD playback z UNLEADED SOLDER You can play CD-DA (also containing CD TEXT*), CD-R/CD- Boards requiring use of unleaded solder are printed with the lead RW (MP3/WMA files also containing Multi Session and ATRAC free mark (LF) indicating the solder contains no lead. CD (ATRAC3 and ATRAC3plus format). (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) Type of discs Label on the disc CD-DA : LEAD FREE MARK
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CDX-GT50W/GT500/GT500EE/GT550 TABLE OF CONTENTS 1. GENERAL Location of controls and basic operations ............................... 5 Connections ............................................................................. 7 2. DISASSEMBLY 2-1. Sub (FL) Panel Assy ......................................................... 12 2-2. CD Mechanism Block ....................................................... 12 2-3. Main Board ....................................................................... 1
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CDX-GT50W/GT500/GT500EE/GT550 SECTION 1 This section is extracted GENERAL from instruction manual. • CDX-GT50W/GT500: US, Canadian Model Location of controls and basic operations 2 3 4 Main unit H GP* /ALBM* +/– buttons* S Z (eject) button 5 To skip groups/albums (press); skip groups/ To eject the disc. albums continuously (press and hold). T Disc slot 5 I SEEK –/+ buttons To insert the disc. CD: The following buttons on the card remote To skip tracks (press); skip tracks commander have also
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CDX-GT50W/GT500/GT500EE/GT550 • CDX-GT500EE Location of controls and basic operations 1 2 3 Main unit H GP* /ALBM* +/– buttons* R RESET button 4 To skip groups/albums (press); skip groups/ S Z (eject) button 5 albums continuously (press and hold). To eject the disc. I SEEK –/+ buttons T Disc slot 5 CD: To insert the disc. To skip tracks (press); skip tracks continuously (press, then press again within The following buttons on the card remote about 1 second and hold); reverse/fast- commande
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CDX-GT50W/GT500/GT500EE/GT550 • CONNECTIONS • CDX-GT50W/GT500: US, Canadian Model 1 * 4 * Source selector (not supplied) Sélecteur de source Supplied with the CD/MD changer 3 * (non fourni) Fourni avec le changeur de CD/MD XA-C30 5 * BUS AUDIO IN 2 /AUX IN* AUDIO OUT REMOTE FRONT IN 6 L * 1 1 * R * RCA pin cord (not supplied) 2 * Be sure to match the color- BUS AUDIO AUDIO SUB OUT (MONO) AUDIO OUT OUT coded cord for audio to the IN REAR FRONT appropriate jacks from the from car antenna unit
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CDX-GT50W/GT500/GT500EE/GT550 • CDX-GT500: AEP, UK Model 1 1 1 1 1 Auxiliary equipment such as portable * Note for the aerial connecting * Hinweis zum Anschließen der Antenne * Remarque sur le raccordement de * Nota per il collegamento dell’antenna * Opmerking bij de antenne-aansluiting DVD player (not supplied) If your car aerial is an ISO (International Wenn Ihre Fahrzeugantenne der l’antenne Se l’antenna dell’auto è di tipo Indien uw auto is uitgerust met een Organisation for Standardisation
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CDX-GT50W/GT500/GT500EE/GT550 • CDX-GT500EE Connection diagram A To AMP REMOTE IN of an optional power amplifi er This connection is only for amplifi ers. Connecting any other system may damage the unit. B To the interface cable of a car telephone Warning If you have a power aerial without a relay box, connecting this unit with the supplied power connecting lead 3 may damage the aerial. Notes on the control and power supply leads • The power aerial control lead (blue) supplies +12 V DC when
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CDX-GT50W/GT500/GT500EE/GT550 • CDX-GT550 Connection diagram Diagrama de conexión 1 To a metal surface of the car 1 A una superfi cie metálica del automóvil First connect the black earth lead, then connect the orange/ Conecte primero el cable de conexión a masa negro, y después white stripped, yellow, and red power input leads. los cables con rayas naranjas y blancas, amarillo, y rojo de entrada de alimentación. 2 To the power aerial control lead or power 2 Al cable de control de la antena mo
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CDX-GT50W/GT500/GT500EE/GT550 SECTION 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. SET 2-1. SUB (FL) PANEL ASSY (Page 12) 2-2. CD MECHANISM BLOCK (Page 12) 2-10. SERVO BOARD 2-3. MAIN BOARD 2-4. CHASSIS (T) SUB ASSY (Page 16) (Page 13) (Page 13) 2-5. ROLLER ARM ASSY (Page 14) 2-6. CHASSIS (OP) ASSY (Page 14) 2-8. SL MOTOR ASSY (M902) (Page 15) 2-7. OPTICAL PICK-UP 2-9. LE MOTOR ASSY (M903) (Page 15) (Page 16) 11
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CDX-GT50W/GT500/GT500EE/GT550 Note : Follow the disassembly procedure in the numerical order given. 2-1. SUB (FL) PANEL ASSY 3 two claws 2 two claws 4 flexible flat cable (22 core) 1 two screws (CN601) (+PTT 2.6 × 6) 5 sub (FL) panel assy 2-2. CD MECHANISM BLOCK 7 bracket (CD) 6 CD mechanism block 5 two screws (+PTT 2.6 × 4) 2 screw 3 (+PTT 2.6 × 6) 1 screw (+PTT 2.6 × 6) 4 CN400 12
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CDX-GT50W/GT500/GT500EE/GT550 2-3. MAIN BOARD 2 two screws (+PTT 2.6 × 8) 5 screw 1 three ground point screws (+PTT 2.6 × 8) (+PTT 2.6 × 6) 7 cord (MONO) 3 MAIN board 6 CN200 (3P) 4 insulating sheet 2-4. CHASSIS (T) SUB ASSY 4 claw 2 two screws (+P 1.7 × 2.2) 1 two screws (+P 1.7 × 2.2) 6 chassis (T) sub assy 5 SENSOR board 3 claw 13
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CDX-GT50W/GT500/GT500EE/GT550 2-5. ROLLER ARM ASSY 3 washer 5 roller arm assy 4 gear (RA1) 2 spring (RAR-B) 1 spring (RAL-B) 2-6. CHASSIS (OP) ASSY 8 qa chassis (OP) assy 0 coil spring (damper) lever (D) 4 washer 1 optical pick-up (16 core) 6 (CN1) 9 two coil springs (damper) 5 gear (LE1) 7 slider (R) 3 tension spring (KF60) 2 Remove the six solderings. 14
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CDX-GT50W/GT500/GT500EE/GT550 2-7. OPTICAL PICK-UP 2 chucking arm sub assy 5 claw 1 tension coil spring (CHKG) 7 optical pick-up 6 main shaft 4 rack (SL) 3 screw (+B 1.4 × 5) 2-8. SL MOTOR ASSY (M902) 1 screw (+P 1.4 × 1.8) 2 SL motor assy (M902) 15
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CDX-GT50W/GT500/GT500EE/GT550 2-9. LE MOTOR ASSY (M903) 8 screw 0 gear (LE) assy (+M 1.7 × 2.5) 9 bearing (LEB-N) 2 washer qa screw (+M 1.7 × 2.5) qf two toothed lock screws 3 gear (LE1) (+M 1.4 ) lever (D) 4 bracket (LEM-N) qs screw qg LE motor assy 5 (+M 1.7 × 2.5) (M903) qd 6 screw (+P 1.7 × 2.2) slider (R) 7 leaf spring (LE) 1 Remove the two solderings. 2-10. SERVO BOARD 6 SERVO board 1 Remove the eight solderings. 2 Remove the three solderings. 4 screw 5 claw 3
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CDX-GT50W/GT500/GT500EE/GT550 SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM — CD SECTION — • R-ch is omitted due to same as L-ch. • Signal Path : CD PLAY DETECTOR PD1 PD2 MAIN RFEQO RFI RFO AGCI CD-L 96 FPI2 83 81 89 88 LO 30 A SECTION 82 RFRPI PD2 PD1 RO 27 (Page 18) R-CH 94 FNI2 97 FPI1 UNISI 56 UNI SI 95 FNI1 RF AMP,DIGITAL SERVO, RXD 25 DIGITAL SIGNAL PROCESSOR IC2 UNISO 57 UNI SO E TXD 26 MAIN E B 100 TNI RFRP 3 2 RFZI LINK OFF 59 LINK OFF SECTION F UNICKI 58 UNI CLK (Page 18) F TEI 98 TPI 6 7 T
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CDX-GT50W/GT500/GT500EE/GT550 3-2. BLOCK DIAGRAM — MAIN SECTION — ELECTRONIC VOLUME IC401 SUB OUTLR2 16 (L) AUDIO OUT MUTE (R) Q201 CD OUTLR1 19 L CD-L A 9 SE1L SECTION REAR J200 OUTRR1 18 R-CH (2/2) R-CH 10 SE1R R-CH R (Page 17) AUDIO OUT OUTLF 20 L FRONT OUTRF 17 R-CH R-CH R J200 (1/2) MUTE MUTE L 11 DIFFL BUS Q204 Q205 R-CH 13 DIFFR AUDIO IN 12 DIFFG IC2-BUS CONTROLLED POWER AMP R R-CH /MULTIPLE VOLTAGE REGULATOR AUX IC150 SELECT TU300 SWITCH CN100 (TUNER UNIT) Q200 1 11 IN RL OUT FL+ 5 FL+
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CDX-GT50W/GT500/GT500EE/GT550 3-3. BLOCK DIAGRAM — DISPLAY SECTION — SYSTEM CONTROL IC711 (3/3) FL900 VACUUM FLUORESCENT DISPLAYS KEY MATRIX 41 KEYIN0 T620 ENC902,LSW901–905, RECT DC–DC CONVERTER 907–909,S801,908,911–921 D624 40 KEYIN1 TRANSFOMER BATT 37 F+ D712 38 F+ DC/DC 39 F+ KEY ACKNOWLEDGE CONVERTER SWITCH 52 KEY ACK IC620 RECT Q710 ENC902 1 F– D622 1 IN ROTARY 2 F– ENCODER 2 FB 76 XKEY ON 3 F– BATT 31 RE IN0 32 RE IN1 34 VDD2 OSCILLATOR J530 BATTERY 71 RCIN1 FREQUENCY MAIN CHECK (REMOTE I
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CDX-GT50W/GT500/GT500EE/GT550 • NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • WAVEFORMS — SERVO BOARD — (CD PLAY) THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed 4 IC2 ia (RFI) 1 IC2 5 (FEI) 7 IC3 ia (X1) in each block.) For schematic diagrams. For printed wiring boards. Approx. Note: 1Vp-p Note: 0 V 1.1 Vp-p • All capacitors are in µF unless otherwise noted. (p: pF) • X : parts extracted from the component si
