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Sony CDX-C480 Service Manual
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Sony CDX-C480 Service Manual

Sony CDX-C480 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
17 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than
1% total harmonic distortion.
TE
L 13942296513
Other Specifications
CD player section
System
Compact disc digital audio
system
Signal-to-noise ratio
90 dB
Frequency response
10 - 20,000 Hz
Wow and flutter
Below measurable limit
Laser Diode Properties
Material
GaAlAs
Wavelength
780 nm
Emission Duration
Continuous
Less than 44.6 µW*
Laser output power
* This output is the value measured at a distance
of 200 mm from the objective lens surface on
the Optical Pick- up Block.
Tuner section
FM
Tuning range
US, Canadian model:
87.5 - 107.9 MHz
E model:
FM tuning interval:
50 kHz/200 kHz switchable
87.5 - 108.0 MHz
(at 50 kHz step)
87.5 - 107.9 MHz
(at 200 kHz step)
Antenna terminal
External antenna connector
Intermediate frequency
10.7 MHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo),
0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 - 15,000 Hz
Capture ratio
2 dB
www
.
MICROFILM
http://www.xiaoyu163.com
CDX-C480/C580
SPECIFICATIONS
x
ao
y
i
http://www.xiaoyu163.com
8
Photo: CDX-C480
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
Q Q
3
6 7
1 3
AM
Tuning range
Antenna terminal
Intermediate frequency
Sensitivity
Power amplifier section
Outputs
Speaker impedance
Maximum power output
FM/AM COMPACT DISC PLAYER
u163
.
– 1 –
2 9
9 4
2 8
Canadian Model
1 5
0 5
8
2 9
9 4
US, Canadian model:
530 - 1,710 kHz
E model:
AM tuning interval:
9 kHz/10 kHz switchable
531 - 1,602 kHz
(at 9 kHz step)
530 - 1,710 kHz
(at 10 kHz step)
External antenna connector
10.71 MHz/450 kHz
30 µV
Speaker outputs
(sure seal connectors)
4 - 8 ohms
40 W × 4 (at 4 ohms)
– Continued on next page –
m
co
9 9
US Model
CDX-C480/C580
E Model
CDX-C480
CDX-4180
MG-363X-121
KSS-521A
2 8
9 9

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  • Page 1 CDX-C480/C580 3 7 63 1515 0 SERVICE MANUAL US Model CDX-C480/C580 Canadian Model E Model CDX-C480 Photo: CDX-C480 SPECIFICATIONS Model Name Using Similar Mechanism CDX-4180 CD Drive Mechanism Type MG-363X-121 AUDIO POWER SPECIFICATIONS (US Model) Optical Pick-up Name KSS-521A...

  • Page 2: Service Note

    LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 3 http://www.xiaoyu163.com SECTION 1 GENERAL 3 7 63 1515 0 This section extracted from US, Canadian model’s instruction manual. L 13942296513 u163 – 4 – http://www.xiaoyu163.com...
  • Page 4 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 5 – http://www.xiaoyu163.com...
  • Page 5 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 6 – http://www.xiaoyu163.com...
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 7 – http://www.xiaoyu163.com...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 8 – http://www.xiaoyu163.com...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 9 – http://www.xiaoyu163.com...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 10 – http://www.xiaoyu163.com...
  • Page 10 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 11 – http://www.xiaoyu163.com...
  • Page 11 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 12 – http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 13 – http://www.xiaoyu163.com...
  • Page 13 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 14 – http://www.xiaoyu163.com...

  • Page 14: Section 2 Disassembly

    http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note : Follow the disassembly procedure in the numerical order given. 2-1. COVER ASSY 1 claw 4 cover assy 3 claws 2 claw L 13942296513 2-2. FRONT PANEL ASSY 2 front panel assy u163 1 button (release) –...

  • Page 15: Sub Panel (1) Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-3. SUB PANEL (1) ASSY 4 claw 5 sub panel (1) assy 1 PTT 2.6x6 3 claw 2 PTT 2.6x6 L 13942296513 2-4. CD MECHANISM BLOCK 7 PTT 2.6x6 2 PTT 2.6x6 8 bracket (M/D) 3 PTT 2.6x6 5 CD mechanism block 6 PTT 2.6x6...

  • Page 16: Main Board

    http://www.xiaoyu163.com 3 7 63 1515 0 2-5. MAIN BOARD 3 ground point screws (PTT 2.6 X 6) 2 ground point screw (PTT 2.6 X 6) 4 MAIN board 1 PTT 2.6x8 L 13942296513 2-6. HEAT SINK 4 heat sink 3 PTT 2.6x8 u163 2 PTT 2.6x10 1 PTT 2.6x8...

  • Page 17: Chassis (T) Sub Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-7. CHASSIS (T) SUB ASSY 3 P 2x3 2 P 2x3 4 chassis (T) sub assy 1 Unsolder the lead wires. white black L 13942296513 2-8. LEVER ASSY 5 guide (disc) 6 lever (R) assy 3 tension spring (LR) 7 lever (L) assy 1 PS 2x4...

  • Page 18: Servo Board

    http://www.xiaoyu163.com 3 7 63 1515 0 2-9. SERVO BOARD 6 PS 2x4 5 PS 2x4 2 CN2 1 CN3 3 P 2x3 7 SERVO board 4 loading motor assy L 13942296513 2-10. ROLLER ASSY • When installing, take note of the positions arm (roller) and washers.

  • Page 19: Chassis (Op) (O/S) Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-11. CHASSIS (OP) (O/S) ASSY 7 chassis (OP) (O/S) assy 8 compression spring (FL) 1 tension spring (angle) 9 compression spring (FL) 2 tension spring (KR1) 5 Fit lever (D) in the direction of the arrow. 6 Turn loading ring in the direction of the arrow.

  • Page 20: Tuner Section

    http://www.xiaoyu163.com SECTION 3 ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 0 dB = 1 µV TUNER SECTION FM SENS/IF Adjustment Setting: SOURCE button : FMI Cautions during repair D-BASS switch : OFF When the tuner unit is defective, replace it by a new one because Frequency Select switch (E model) : FM 200K its internal block is difficult to repair.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 AM Auto Scan/Stop Level Adjustment Setting: digital SOURCE n MODE button voltmeter : AM D-BASS switch : OFF Frequency Select switch (E model) : AM 10K S-METER OUT – AM RF signal level dummy antenna generator meter...
  • Page 22 http://www.xiaoyu163.com 3 7 63 1515 0 Focus Gain Adjustment (Coarse adjustment) CD SECTION This adjustment is not required unless the following parts are replaced: • Optical pick-up Note: • 1. CD Block basically constructed to operate without adjustment. Therefore, check each item in order given. Procedure: 2.

  • Page 23: Ic Pin Description

    http://www.xiaoyu163.com SECTION 4 DIAGRAMS 3 7 63 1515 0 4-1. IC PIN DESCRIPTION • IC801 MB90574FPV-G-111 (SYSTEM CONTROL) Pin No. Pin Name Pin Description LD ON Laser power ON/OFF control pin Focus signal detection input XLAT25 CD signal process latch output DATA25 CD signal process serial data output XRSRO...
  • Page 24 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Pin Description S-METER S-meter voltage detection input — Power supply AMP MUTE Power amplifier mute control output AMP ON Power amplifier power control output XMODE Reset signal output for CD-TEXT decoder. VOL SO Electric volume serial data output VOL CKO...
  • Page 25 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Pin Description Rotary encoder input LAMP ON Illumination power control output PW ON System power control output REGMOD1 FM power control output REGMOD2 System power control output CTL1 Laser power ON/OFF control output (Not used.) CTL2 Laser power ON/OFF control output Loading motor control output (Loading direction)
  • Page 26 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 28: Circuit Boards Location

    http://www.xiaoyu163.com 3 7 63 1515 0 4-4. CIRCUIT BOARDS LOCATION DISC IN SW board SUB board tuner assy LIMIT SW board DISPLAY board MAIN board LOAD SW board SERVO board L 13942296513 u163 – 31 – http://www.xiaoyu163.com...
  • Page 29 http://www.xiaoyu163.com 3 7 63 1515 0 • Waveforms (MODE:PLAY) Approx. 620mVp-p (FEO) 1.2Vp-p #¡ (RFO) Approx. 200mVp-p $™ (TEO) 2.6Vp-p 7.6µsec (MDP) 5.8Vp-p L 13942296513 22.7µsec @º (LRCK) 5.7Vp-p 474nsec @™ (BCK) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 • IC Block Diagrams IC1 CXD2507AQ SERVO AUTO SEQUENCER DATA XRST SENS SUB CODE MUTE PROCESSOR INTERFACE SQCK DIGITAL SQSO LOCK TEST EXCK SBSO FILO SCOR DIGITAL FILI DEMODULATOR WFCK EMPH AVSS CLTV ASYMMETRY AVDD CORRECTOR DIGITAL...
  • Page 31 http://www.xiaoyu163.com 3 7 63 1515 0 IC2 CXA1782BQ 27 26 25 LEVEL S MIRR SENS RF IV AMP1 DFCT C.OUT XRST RF IV AMP2 FE BIAS IIL DATA REGISTER INPUT SHIFT REGISTER DATA ADDRESS DECODER OUTPUT DECODER L 13942296513 TOG1-3 FS1-4 TG1-2 TM1-7...
  • Page 32 http://www.xiaoyu163.com 3 7 63 1515 0 IC401 LC75374E LFIN – LFOUT – – – – LSELO LROUT – – VREF CONTROL – SHIFT – DECODER LATCH REGISTER RROUT RSELO – – – – RFOUT – RFIN 6 7 8 9 10 IC402, 403 TDA8574 IC601 BU2624FV L 13942296513...
  • Page 33 http://www.xiaoyu163.com 3 7 63 1515 0 IC701 SM5852FS IC702 SM5878AM LRCI DB/DS ATCK INPUT BCKI MOD2 ATTENUATION COUNTER MUTE MODE INTERFACE DIGITAL MOD1 SIGNAL PROCESSOR SYSTEM CLOCK FILTER & ATTENUATION DEEN OPERATION BLOCK LRCO SEQUENTIAL RSTN OUTPUT BCKO CONTROL INTERFACE RSTN TIMING NOISE SHAPER...

  • Page 34: Section 5 Exploded Views

    http://www.xiaoyu163.com SECTION 5 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by mark ! or dotted line with mark. number in the exploded views are not supplied. Example : ! are critical for safety.

  • Page 35: Front Panel Section

    http://www.xiaoyu163.com 3 7 63 1515 0 5-2. FRONT PANEL SECTION not supplied (DISPLAY board) LCD801 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-019-549-01 BUTTON (RELEASE) 3-019-543-01 KNOB (D-BASS) (C480) 3-019-544-01 KNOB (SEEK/AMS) * 61 X-3374-890-1 HOLDER (LCD) ASSY 3-375-373-01 SPRING (RELEASE) * 62...
  • Page 36 http://www.xiaoyu163.com 3 7 63 1515 0 5-3. CD MECHANISM SECTION (1) (MG-363X-121) L 13942296513 M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 1-659-836-11 DISC IN SW BOARD 3-931-902-03 ARM (ROLLER) * 102 A-3291-816-B CHASSIS (T) SUB ASSY 3-936-756-01 ROLLER (D) 3-931-909-01 SPRING (LR), TENSION 3-321-393-01 WASHER, STOPPER...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 5-4. CD MECHANISM SECTION (2) (MG-363X-121) L 13942296513 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-931-893-01 ARM, CHUCKING 3-019-805-01 SPRING (KF1), TENSION 3-931-897-01 DAMPER (T) * 159 A-3291-677-G CHASSIS (M) ASSY 3-931-879-02 LEVER (D) 3-931-883-01 SPRING (TR), TENSION...
  • Page 38 http://www.xiaoyu163.com 3 7 63 1515 0 5-5. CD MECHANISM SECTION (3) (MG-363X-121) M901 M902 L 13942296513 The components identified by Les composants identifiés par une mark ! or dotted line with mark. marque ! sont critiques pour la ! are critical for safety. sécurité.

  • Page 39: Electrical Parts List

    http://www.xiaoyu163.com SECTION 6 DISC IN SW DISPLAY ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark ! or dotted line with mark. the parts list may be different from the they are seldom required for routine service.
  • Page 40 http://www.xiaoyu163.com DISPLAY LIMIT SW LOAD SW MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R802 1-216-647-11 METAL CHIP 0.5% 1/10W R803 1-216-647-11 METAL CHIP 0.5% 1/10W < ROTARY ENCODER > R804 1-208-437-41 RES,CHIP 1/10W...
  • Page 41 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C117 1-104-664-11 ELECT 47uF C407 1-164-346-11 CERAMIC CHIP (C580) C408 1-164-346-11 CERAMIC CHIP C118 1-124-455-00 ELECT 100uF C409 1-126-936-11 ELECT 3300uF (C580) C410 1-126-157-11 ELECT...
  • Page 42 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C718 1-163-239-11 CERAMIC CHIP 33PF < DIODE > C801 1-164-004-11 CERAMIC CHIP 0.1uF C802 1-164-346-11 CERAMIC CHIP D402 8-719-109-71 DIODE RD3.9ES-B1 C809 1-163-001-11 CERAMIC CHIP 220PF...
  • Page 43 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC701 8-759-473-70 IC SM5852FS-E2 Q602 8-729-620-06 TRANSISTOR 2SC3052-EF IC702 8-759-498-36 IC SM5878AM-E2 Q609 8-729-027-44 TRANSISTOR DTC114TK IC801 8-759-535-60 IC MB90574PFV-G-111 Q611 8-729-021-94 TRANSISTOR 2SK1657-T1B IC803 8-759-449-89 IC BA8270F-E2...
  • Page 44 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R122 1-216-086-00 RES,CHIP 1/10W R228 1-216-082-00 METAL CHIP 1/10W (C580) R229 1-216-082-00 METAL CHIP 1/10W R123 1-216-077-00 METAL CHIP 1/10W R230 1-216-082-00 METAL CHIP 1/10W (C480)
  • Page 45 http://www.xiaoyu163.com MAIN SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R809 1-216-025-00 RES,CHIP 1/10W R905 1-216-073-00 METAL CHIP 1/10W R810 1-216-025-00 RES,CHIP 1/10W R906 1-216-085-00 METAL CHIP 1/10W R824 1-216-089-00 RES,CHIP 1/10W R907 1-216-057-00 METAL CHIP...
  • Page 46 http://www.xiaoyu163.com SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-164-232-11 CERAMIC CHIP 0.01uF JR16 1-216-296-00 SHORT 1-163-989-11 CERAMIC CHIP 0.033uF JR17 1-216-296-00 SHORT 1-164-004-11 CERAMIC CHIP 0.1uF JR18 1-216-296-00 SHORT 1-164-004-11 CERAMIC CHIP 0.1uF JR19...
  • Page 47 http://www.xiaoyu163.com SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-073-00 METAL CHIP 1/10W MISCELLANEOUS 1-216-085-00 METAL CHIP 1/10W *************** 1-216-085-00 METAL CHIP 1/10W 1-216-077-00 METAL CHIP 1/10W 1-776-207-82 CORD (WITH CONNECTOR) (POWER) 1-216-081-00 METAL CHIP 1/10W 1-659-880-11 MOTOR FLEXIBLE BOARD...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0 Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS *************************************** 3-014-370-31 FRAME, FITTING 3-916-012-01 BRACKET (ND), FITTING ASSIST (US,Canadian) X-3368-725-1 SCREW ASSY, FITTING (US,Canadian) 3-934-325-01 SCREW (+K 5X8 TP) X-3374-806-1 COLLAR ASSY 3-388-078-01 KEY 1-776-207-82 CORD (WITH CONNECTOR) (POWER) X-3366-405-1 SCREW ASSY (EXP), FITTING (E)
  • Page 49 CDX-C480/C580 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 98A0435-1 9-925-778-11 Personal & Mobile Communication Company Printed in Japan C1998. 1 – 68 – Published by Quality Assurance Dept. http://www.xiaoyu163.com...

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