Sony CDX-L480N Service Manual
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Sony CDX-L480N Service Manual

Sony CDX-L480N Service Manual

Fm/am compact disc player
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SERVICE MANUAL
Ver 1.0 2003. 07
• The tuner and CD sections have no adjustments.
Sony Corporation
9-961-055-01
2003G04-1
e Vehicle Company
© 2003. 07
Published by Sony Engineering Corporation
CDX-L480N
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
FM/AM COMPACT DISC PLAYER
Thai Model
CDX-L480X
MG-393XC-121//Q
KSS-721A
1

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Summary of Contents for Sony CDX-L480N

  • Page 1 • The tuner and CD sections have no adjustments. Model Name Using Similar Mechanism CDX-L480X CD Drive Mechanism Type MG-393XC-121//Q Optical Pick-up Name KSS-721A FM/AM COMPACT DISC PLAYER Sony Corporation 9-961-055-01 2003G04-1 e Vehicle Company © 2003. 07 Published by Sony Engineering Corporation...
  • Page 2 COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 3 CDX-L480N UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics.

  • Page 4: Table Of Contents

    CDX-L480N TABLE OF CONTENTS 1. DISASSEMBLY 1-1. Sub Panel Assy ..............5 1-2. CD Mechanism Block ............6 1-3. Main Board ................. 6 1-4. Heat Sink ................7 1-5. Chassis (T.U) Assy .............. 7 1-6. Disc in Board ..............8 1-7.

  • Page 5: Disassembly

    CDX-L480N SECTION 1 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 1-5. CHASSIS (T.U) ASSY 1-1. SUB PANEL ASSY (Page 7) (Page 5) 1-6. DISC IN BOARD 1-7. SERVO BOARD 1-2. CD MECHANISM BLOCK (Page 8)

  • Page 6: Cd Mechanism Block

    CDX-L480N 1-2. CD MECHANISM BLOCK 7 bracket (CD) 5 CD mechanism block 6 two screws (PTT 2.6x4) 2 screw (PTT 2.6x6) 1 screw (PTT 2.6x6) 4 CNP301 1-3. MAIN BOARD 3 screw (PTT 2.6x6) (ground point) 5 MAIN board 4 two screws (PTT 2.6x6)

  • Page 7: Heat Sink

    CDX-L480N 1-4. HEAT SINK 5 heat sink 3 screw (PTT 2.6x8) 2 two screws (PTT 2.6x12) 1 screw (PTT 2.6x8) 1-5. CHASSIS (T.U) ASSY 2 two screws (P 2x3) 3 two screws (P 2x3) 1 Unsolder the 4 chassis (T.U) assy lead wires.

  • Page 8: Disc In Board

    CDX-L480N 1-6. DISC IN BOARD 4 guide (disc) 1 screw (PS 2x3) 2 DISC IN board 3 claws 1-7. SERVO BOARD 8 SERVO board 7 screw (PTT 2x4) 6 two screws (PTT 2x4) 2 Removal the solders. 9 PICK-UP FLEXIBLE board...

  • Page 9: Shaft Roller Assy

    CDX-L480N 1-8. SHAFT ROLLER ASSY • When installing, take note of the positions arm (roller) and washers. (Fig. 1) 3 retaining ring (roller) bearing (roller) bearing (roller) 4 bearing (roller) washer (RA) retaining ring (roller) washer (RA) Fig. 1 6 screw...

  • Page 10: Optical Pick-Up Block

    CDX-L480N 1-10. OPTICAL PICK-UP BLOCK 1 two screws 4 screw (P 2x3) (P 2x3) 5 leaf spring (feed) 2 sled motor assy 3 optical pick-up block 6 shaft (feed) assy...

  • Page 11: Diagrams

    CDX-L480N SECTION 2 DIAGRAMS 2-1. IC PIN DESCRIPTION • IC501 MN101C49KSG (SYSTEM CONTROL) Pin No. Pin Name Pin Description VREF– — A/D converter power supply (–) pin S-meter voltage detection input QUALITY Noise detection input 4, 5 KEYIN1, 0 Key input 1, 0...
  • Page 12 CDX-L480N Pin No. Pin Name Pin Description X_EN Not used. (Open) LIMIT CD mechanism deck Limit switch detection input Not used. (Open) D_SW CD mechanism deck Down switch detection input INSW CD mechanism deck Disc in switch detection input Not used. (Open)

  • Page 13: Block Diagram -Cd Section

    CDX-L480N 2-2. BLOCK DIAGRAM — CD SECTION — RF AMP,DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR OPTICAL PICK-UP (KSS-721A) (Page 14) TUNER SECTION LOUT SYSTEM CONTROL ROUT IC501 (1/3) CONV DEMOD PACK CD PACK DSUB CODE TSTB PROCESS TSTB CONV. CD_TSO CD_TSI...

  • Page 14: Block Diagram -Display Section

    CDX-L480N 2-3. BLOCK DIAGRAM — TUNER SECTION — SOUND CONTROL ELECTRONIC VOLUME IC401 J330 AUDIO OUT REAR AUDIO 8.3V R-CH BUS-LCH POWER AMP IC750 (1/2) CN601 EFFECT CD-LCH MUTE Q441 TUNER UNIT R-CH (Page 13) SECTION TONE TV-LCH 1 ANT...

  • Page 15: Circuit Boards Location

    CDX-L480N 2-5. CIRCUIT BOARDS LOCATION 2-4. BLOCK DIAGRAM — DISPLAY SECTION — SERVO board SYSTEM CONTROL LCD DRIVER IC501 (3/3) IC901 KEY MATRIX SUB (CD) board LSW904,905, KEYIN0 DISC IN board LCDSO DATA LSW907-911, LSW913-921 LCDCKO LIMIT board SEG1 S900-903,906,912...

  • Page 16: Printed Wiring Boards -Cd Mechanism Section

    CDX-L480N 2-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 15 for Circuit Boards Location. : Uses unleaded solder. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
  • Page 17 CDX-L480N : Uses unleaded solder. TP77 TP78 TP62 TP82 TP48 TP66 TP80 TP84 TP83 TP60 TP12 TP11 TP50 (Page 19) TP47 C9 C10 TP64 TP10 TP51 TP89 TP59 TP52 TP71 TP56 TP22 TP58 TP72 TP24 TP23 TP25 TP61 TP76 TP88...

  • Page 18: Schematic Diagram -Cd Mechanism Section

    CDX-L480N 2-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 15 for Waveforms and page 16 for Common Note on Schematic Diagram. • Refer to page 24 for IC Block Diagrams. TP77 TP78 TP89 TP79 TP80 TP81...

  • Page 19: Printed Wiring Board -Main Section

    CDX-L480N 2-8. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 15 for Circuit Boards Location and page 16 for Common Note on Printed Wiring Boards. : Uses unleaded solder. J330 J561 CN601 R462 R452 C764 C765 C751...

  • Page 20: Schematic Diagram -Main Section (1/2)

    CDX-L480N 2-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 15 for Waveforms and page 16 for Common Note on Schematic Diagram. • Refer to page 24 for IC Block Diagrams. J330 C332 C333 JC29 C765 C764...

  • Page 21: Schematic Diagram -Main Section (2/2)

    CDX-L480N 2-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 16 for Common Note on Schematic Diagram. (Page 20) JC401 L502 R521 R536 R520 R539 C303 (Page 18) R522 R535 C301 R531 JC303 R518 R534 C623 L306...

  • Page 22: Printed Wiring Board -Key Section

    CDX-L480N 2-11. PRINTED WIRING BOARD — KEY SECTION — • Refer to page 15 for Circuit Boards Location and page 16 for Common Note on Printed Wiring Boards. : Uses unleaded solder. LED903 LED900 LED952 S900 S903 R965 R964 R904...

  • Page 23: Schematic Diagram -Key Section

    CDX-L480N 2-12. SCHEMATIC DIAGRAM — KEY SECTION — • Refer to page 16 for Common Note on Schematic Diagram. R941 R951 R954 R956 R964 R987 R972 CN901 R942 R944 R952 R955 R957 R961 R965 R988 LED900 LED912 LED902 LED903 R989...

  • Page 24: Ic Block Diagrams

    CDX-L480N 2-13. IC BLOCK DIAGRAMS IC1 µPD63711GC-8EU IC2 BA5810FP-E2 BIAS 71 70 LOADING PRE OPIN4+ FWD REV – OPIN4– MICROCOMPUTER INTERFACE AGCI 50 C2D3 LDCONT COMPARATOR 49 C2D2 POWER CD-TEXT DECODER OPOUT4 SAVE 48 C2D1 SUB-CODE PROCESSOR OPIN3+ MEMORY 47 C1D2 –...
  • Page 25 CDX-L480N IC401 BD3803AF-FE2 OUT- OUT- OUT- OUT- D-GND MUTE FADER FADER FADER FADER (0~-58, (0~-58, (0~-58, (0~-58, C BUS -∞dB) -∞dB) -∞dB) -∞dB) LOGIC TONE TONE PASS PASS BASS,TREBLE, MIDDLE BASS,TREBLE, MIDDLE (-15dB~+15dB,1dB STEP) (-15dB~+15dB,1dB STEP) VOLUME VOLUME (+23~-79dB,-∞dB (+23~-79dB,-∞dB...
  • Page 26 CDX-L480N IC750 TDA8589J/N1 OUT-FL- C BUS OUT-FL+ OUT-RL- PGND3 OUT-RL+ IN-RL IN-FL S-GND PROTECTION/ DIAGNOSTIC IN-FR IN-RR BEEP OUT-RR+ PGND2 OUT-RR- OUT-FR+ STANDBY/ MUTE OUT-FR- CHIP DETECT/ PGND1 DIAGNOSTIC BATTERY TEMPERATURE DIAG DETECTION ENABLE PROTECTION LOGIC SWITCH ANT-REM CRES AMP-REM SWITCH AUDIO8.3V...

  • Page 27: Exploded Views

    CDX-L480N SECTION 3 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by mark 0 or dotted line with mark number in the exploded views are not supplied. Example : 0 are critical for safety.

  • Page 28: Front Panel Section

    X-3384-031-1 PANEL SUB ASSY, FRONT A-3337-982-A PANEL OVERALL ASSY, FRONT X-3383-104-3 BUTTON ASSY (S) 1-694-977-11 CONDUCTIVE BOARD, CONNECTION 3-246-463-01 FILTER (IR) 3-042-504-01 EMBLEM (NO.2.5), SONY 3-246-466-01 PLATE (CD), LIGHT GUIDE 3-246-455-11 BUTTON (PRESET) 3-246-479-01 SPRING (RELEASE) LCD901 1-805-078-11 DISPLAY PANEL, LIQUID CRYSTAL...

  • Page 29: Cd Mechanism Section (1)

    CDX-L480N 3-3. CD MECHANISM SECTION (1) (MG-393XC-121//Q) not supplied (DISC IN board) not supplied (LOAD board) not supplied supplied not supplied not supplied not supplied M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3315-247-D CHASSIS (T.U) ASSY...

  • Page 30: Cd Mechanism Section (2)

    CDX-L480N 3-4. CD MECHANISM SECTION (2) (MG-393XC-121//Q) not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-040-164-06 ARM, CHUCKING A-3315-243-E CHASSIS (M) ASSY 3-931-897-71 DAMPER (T) 3-220-180-01 SPRING (TR2), TENSION 3-039-627-01 LEVER (D) 3-931-881-11 LEVER (LOCK)

  • Page 31: Cd Mechanism Section (3)

    CDX-L480N 3-5. CD MECHANISM SECTION (3) (MG-393XC-121//Q) M901 not supplied (LIMIT board) M902 not supplied (SUB (CD) board) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

  • Page 32: Electrical Parts List

    CDX-L480N SECTION 4 DISC IN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service.
  • Page 33 CDX-L480N LIMIT LOAD MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R931 1-216-025-11 RES-CHIP 1/10W LOAD BOARD R932 1-216-021-00 METAL CHIP 1/10W *********** R933 1-216-017-11 RES-CHIP 1/10W R941 1-216-025-11 RES-CHIP 1/10W < SWITCH > R942...
  • Page 34 CDX-L480N MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C461 1-128-428-11 ELECT 10uF D751 8-719-970-02 DIODE 1SR139-400 C462 1-125-891-11 CERAMIC CHIP 0.47uF D752 8-719-053-18 DIODE 1SR154-400TE-25 C479 1-124-589-11 ELECT 47uF D753 8-719-970-02 DIODE 1SR139-400 C480 1-107-826-11 CERAMIC CHIP 0.1uF...
  • Page 35 CDX-L480N MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L302 1-469-876-11 INDUCTOR, FERRITE BEAD R503 1-216-809-11 METAL CHIP 1/10W L303 1-469-876-11 INDUCTOR, FERRITE BEAD R504 1-218-871-11 METAL CHIP 0.5% 1/10W L304 1-216-295-11 SHORT CHIP R505 1-218-871-11 METAL CHIP 0.5%...
  • Page 36 CDX-L480N MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TUNER > < IC > A-3220-945-A TUNER UNIT (TUX-031//Q3) 8-759-699-98 IC uPD63711GC-8EU 8-759-658-87 IC BA5810FP-E2 < VIBRATOR > < TRANSISTOR > 1-579-242-41 VIBRATOR, CRYSTAL (4.332MHz) X501 1-781-294-21 VIBRATOR, CRYSTAL (18.432MHz)
  • Page 37 CDX-L480N MEMO...
  • Page 38 CDX-L480N REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2003. 07...

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