Sony WX-4500X Service Manual
Sony WX-4500X Service Manual

Sony WX-4500X Service Manual

Changer control audio master
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SERVICE MANUAL
Ver 1.1 2002. 10
Dolby noise reduction manufactured under license from Dolby Labo-
ratories Licensing Corporation.
"DOLBY" and the double-D symbol ; are trademarks of Dolby
Laboratories Licensing Corporation.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio
92 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Laser Diode Properties
Material
GaAlAs
Wavelength
780 nm
Emission Duration
Continuous
Laser output power
Less than 44.6 µW*
* This output is the value measured at a distance
of 200 mm from the objective lens surface on
the Optical Pick-up Block.
Cassette player section
Tape track
4-track 2-channel stereo
Wow and flutter
0.08 % (WRMS)
Frequency response
30 – 18,000 Hz
Signal-to-noise ratio
Cassette type
Dolby B NR
TYPE II, IV
67 dB
TYPE I
64 dB
Sony Corporation
9-873-326-02
2002J0400-1
e Vehicle Company
© 2002. 10
Published by Sony Engineering Corporation
SPECIFICATIONS
Dolby NR off
58 dB
55 dB
CHANGER CONTROL AUDIO MASTER
WX-4500X
Model Name Using Similar Mechanism
CD
CD Drive Mechanism Type
Section
Optical Pick-up Name
Model Name Using Similar Mechanism
TC
Section
Tape Transport Mechanism Type
Tuner section
FM
Tuning range
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/450 kHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
70 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.4% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
US Model
NEW
MG-318RW/
A-153
RAF0143A
WX-C55
MG-25E-136
– Continued on next page –
1

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Summary of Contents for Sony WX-4500X

  • Page 1 Cassette type Dolby B NR Dolby NR off TYPE II, IV 67 dB 58 dB TYPE I 64 dB 55 dB CHANGER CONTROL AUDIO MASTER Sony Corporation 9-873-326-02 2002J0400-1 e Vehicle Company © 2002. 10 Published by Sony Engineering Corporation...
  • Page 2: Service Note

    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: Table Of Contents

    WX-4500X TABLE OF CONTENTS 1. GENERAL 5. ELECTRICAL ADJUSTMENTS Location of Controls ............... 4 Tape Section ................. 20 Getting Started ................ 5 CD Player ................5 6. DIAGRAMS Cassette Player ............... 6 6-1. IC Pin Descriptions ............22 Radio ..................6 6-2.
  • Page 4: General

    WX-4500X SECTION 1 GENERAL This section extracted from instruction manual.
  • Page 5: Getting Started

    WX-4500X...
  • Page 6: Cassette Player

    WX-4500X...
  • Page 7: Other Functions

    WX-4500X...
  • Page 8 WX-4500X...
  • Page 9: Connections

    WX-4500X Connections...
  • Page 10 WX-4500X...
  • Page 11: Disassembly

    WX-4500X SECTION 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. Front Panel Assy CD Mechanism Block CD Main Board Tension Spring (FL) Floating Block Assy Roller Arm Assy Optical Pick-up Assy Main Board Heat Sink...
  • Page 12: Cd Mechanism Block

    WX-4500X 2-2. CD MECHANISM BLOCK 6 PTT 2.6x6 4 CD mechanism block 7 bracket (MD) 3 PTT 2.6x6 2 PTT 2.6x6 1 PTT 2.6x6 5 CNJ101 2-3. CD MAIN BOARD 3 CNJ103 4 M 2x3.0 2 CNJ102 5 M 2x3.0...
  • Page 13: Tension Spring (Fl)

    WX-4500X 2-4. TENSION SPRING (FL) 1 spring (FL), tension 2 spring (FL), tension 2-5. FLOATING BLOCK ASSY 8 shaft 7 shaft 4 spring (SPM), tension 0 floating block assy 5 spring (angle), tension 9 shaft 6 Fit lever in the direction of the arrow.
  • Page 14: Roller Arm Assy

    WX-4500X 2-6. ROLLER ARM ASSY 5 shaft 2 spring (roller) 6 arm assy, roller 1 spring (roller) 3 Fit lever in the 4 shaft direction of the arrow. 2-7. OPTICAL PICK-UP ASSY 4 PTP 1.7x4 5 rack (feed) 1 gear (woam wheel)
  • Page 15: Chassis (Top) Assy

    WX-4500X 2-8. CHASSIS (TOP) ASSY 5 chassis (TOP) assy projection 2 PTT 2.6x6 projection 4 connector 3 CN400 1 PTT 2.6x6 2-9. MAIN BOARD 4 CN450 1 PTT 2.6x10 3 MAIN board 2 PTT 2.6x6, ground point...
  • Page 16: Heat Sink

    WX-4500X 2-10. HEAT SINK 6 heat sink 5 PTT 2.6x10 4 BTP 2.6x8 3 PTT 2.6x10 2 PTT 2.6x10 1 PTT 2.6x10 2-11. TAPE MECHANISM BLOCK 2 PTT 2.6x5 3 tape mechaniam block 1 PTT 2.6x5...
  • Page 17: Assembly Of Mechanism Deck

    WX-4500X SECTION 3 ASSEMBLY OF MECHANISM DECK Note : This set can be assemble according to the following sequence. Head, Housing Arm (Suction) Lever (LDG-A) / (LDG-B) Gear (Loading FT) Guide (U) Main Motor Assy Note : Follow the assembly procedure in the numerical order given.
  • Page 18: Lever (Ldg-A)/(Ldg-B)

    WX-4500X 3-3. LEVER (LDG-A) / (LDG-B) shaft A shaft A shaft B shaft C shaft B 1 Fit the lever (LDG-A) on shafts A to C and install it. 3 type-E stop ring 2.0 2 Fit the lever (LDG-B) on shafts A and B and install it.
  • Page 19: Guide (U)

    WX-4500X 3-5. GUIDE (U) 2 guide (C) 1 claws 3-6. MAIN MOTOR ASSY 3 belt (25) 2 precision screws P 2x2 1 main motor assy (CAPSTAN/REEL) (M904) 30 °...
  • Page 20: Mechanical Adjustments

    WX-4500X SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS • Adjustments of the tuner and CD sections have auto adjustments PRECAUTION in this set. 1. Wipe the following components with an absorbent cotton cloth moistened with alcohol before adjustment : TAPE SECTION 0 dB = 0.775 V...
  • Page 21 WX-4500X DOLBY Level Adjustment Setting : Light down mark ; (DOLBY OFF) test tape P-4-D400 level meter (400 Hz, 0 dB) main board TP-L TP-R Procedure : 1. Set the FWD play mode. 2. Push the MENU button and rotate the jog roller to display “NR”.
  • Page 22: Diagrams

    Serial clock signal input/output for bus interface to the master controller (IC700) and BUS CLK the display controller (IC900), or serial clock signal output to the SONY bus interface (IC750) Through pin of serial clock signal for the bus interface —...
  • Page 23 CD disc detection switch input “L” signal is input when a disc is present at the CD disc inlet Down voltage detection input from the SONY bus interface (IC750) and the battery B/U CHECK detection circuit “L” signal is input when the voltage is reduced...
  • Page 24 DPBOOT Display microcomputer write control signal output 17 – 19 N. C. O Not used in this set (open) UNI SI SONY bus data input UNI SO SONY bus data output UNI CLK SONY bus clock output N. C. O...
  • Page 25 WX-4500X Pin No. Pin Name Pin Description FL ON FL ON control signal input — Ground pin RE IN1 Rotary encoder signal input FSW IN Frequency signal input for D/D converter oscillation RE IN0 Rotary encoder signal input 67 – 69 N.
  • Page 26: Block Diagram -Cd Section

    WX-4500X 6-2. BLOCK DIAGRAM — CD SECTION — DIGITAL SIGNAL PROCESSOR, DIGITAL SIGNAL SERVO, CLV SERVO, D/A CONVERTER,CD-TEXT IC101 RF AMP, FOCUS/TRACKING ERROR AMP TIMING X101 IC102 GENERATOR 16.93MHz TUNER OUTL DIGITAL EFM/SUBCODE CD L CIRC ERROR SOFT 1BIT D/A...
  • Page 27: Block Diagram -Tuner Section

    WX-4500X 6-3. BLOCK DIAGRAM — TUNER SECTION — CN300 TAPE TAPE L SECTION (Page 28) BUS AUDIO IN IC451 R-CH ELECTRONIC VOLUME CD L SA OUT SA AUDIO TAPE SECTION IC300 CDC L SA CLK SA CLK (Page 26) SECTION...
  • Page 28: Block Diagram -Tape Section

    WX-4500X 6-4. BLOCK DIAGRAM — TAPE SECTION — (Page 26) CD SECTION MAIN SYSTEM CONTROL TAPE EQ/DOLBY/METAL/AMS IC700(2/2) IC400 BUS CONTROL HP901 IC750 FWD/REV PLAYBACK HEAD MTL/NORMAL UNI SI DATA CN750 NR ON DOL ON (BUS CONTROL IN) UNI SO...
  • Page 29: Circuit Boards Location

    WX-4500X 6-5. CIRCUIT BOARDS LOCATION • Waveforms THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS — CD MECHANISM SECTION — AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is (MODE : CD PLAY) printed in each block.) Note on Printed Wiring Boards: •...
  • Page 30: Printed Wiring Boards -Cd Mechanism Section

    WX-4500X • Semiconductor 6-6. PRINTED WIRING BOARD — CD MECHANISM SECTION — • Refer to page 29 for Circuit Boards Location. Location Ref. No. Location (Page 33) IC101 IC102 IC103 IC201 Q101 R130 R120 C138 C133 JC126 C113 C137 C121...
  • Page 31: Schematic Diagram -Cd Mechanism Section

    WX-4500X 6-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 29 for Waveforms. Refer to page 41 for IC Block Diagrams. JC102 C138 JC138 JC139 R133 C115 JC101 C133 C137 Q101 R126 R119 R121 C118 R116 C113...
  • Page 32: Printed Wiring Board -Main Section

    WX-4500X 6-8. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 29 for Circuit Boards Location. R921 C750 D751 D903 D901 R750 R318 C902 D753 R313 TH900 D900 C322 Q900 Q751 R118 R218 R312 R341 R900 R340 C900...
  • Page 33 WX-4500X CN300 CN900 J900 CN750 IC170 TH750 D907 • Semiconductor Location Ref. No. Location Ref. No. Location IC400 K-13 D300 IC451 J-10 D302 IC650 D304 IC700 D305 IC701 D306 IC702 IC750 B-14 D452 G-12 D453 G-14 IC800 H-10 D630 IC801...
  • Page 34: Schematic Diagram -Main Section (1/3)

    WX-4500X 6-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 43 for IC Block Diagrams. Note: R107 R106 R130 R207 R206 R230 • Voltage is dc with respect to ground under no-signal condition. CN300 no mark : FM...
  • Page 35: Schematic Diagram -Main Section (2/3)

    WX-4500X 6-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 29 for Waveforms. Refer to page 44 for IC Block Diagrams. (Page 34) C713 S700 C417 C428 RV401 C418 R418 R408 C412 C413 R735 C419 R411 R410...
  • Page 36: Schematic Diagram -Main Section (3/3)

    WX-4500X 6-11. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 44 for IC Block Diagrams. IC B/D IC B/D IC702 L300 TP701 R910 C302 R734 C721 R911 Q905 IC701 C718 C719 C301 IC301 R909 C720 D909 L806...
  • Page 37: Printed Wiring Board -Jog Section

    WX-4500X 6-12. PRINTED WIRING BOARD — JOG SECTION — • Refer to page 29 for Circuit Boards Location. (Page 38)
  • Page 38: Printed Wiring Board -Display Section

    WX-4500X 6-13. PRINTED WIRING BOARD — DISPLAY SECTION — • Refer to page 29 for Circuit Boards Location. D907 LSW964 D909 R940 R930 R932 D908 D905 D903 D911 SW973 SW971 R943 R964 R965 R954 LSW974 LSW972 LSW966 LSW963 LSW975 SW960...
  • Page 39 WX-4500X R963 TP901 R939 R929 R962 C904 R912 R967 R921 C909 D900 IC900 IC901 C903 R948 C919 R905 R936 R913 CN902 FL700 D960 FB900 X901 C913 R918 R917 R942 (Page 33) • Semiconductor Location Ref. No. Location D900 D901 D960...
  • Page 40: Schematic Diagram -Display, Jog Section

    WX-4500X 6-14. SCHEMATIC DIAGRAM — DISPLAY, JOG SECTION — • Refer to page 45 for IC Block Diagrams. RB901 R930 R932 R931 FL700 LSW966(2/2) LSW974(2/2) D908 D911 LSW965(2/2) C910 R920 D901 LSW975(2/2) LSW972(2/2) D905 D903 C909 LSW970(2/2) Q901 R921 R938...
  • Page 41: Ic Block Diagrams

    WX-4500X • IC Block Diagrams IC101 MN6627481RPMFA 69 68 67 66 65 64 63 62 61 + – + – TIMING GENERATOR, PITCH CONTROL 8 TIMES OVER SAMPLING, DIGITAL FILTER 1BIT D/A CONVERTER, PWM LOGIC DIGITAL SBCK DEEMPHASIS SUBC VCOF2...
  • Page 42 WX-4500X IC102 AN22000A-EA VREF NRFDET VDET VDET TEBPF OFTR OFTR COFTR CBDO 3TENV SUBT CAGC SUBT NRFDET LDON FBAL RF EQ TBAL IC201 BA5984FP-E2 MUTE – – – – – – LEVEL SHIFT – – LEVEL LOADING DRIVER SHIFT OUT B...
  • Page 43 WX-4500X IC300 TDA7406T 32 31 30 29 28 27 26 25 MIXER SOFT STEP SOFT STEP SOFT STEP MONO FADER FADER FADER FADER CREF SUPPLY SACLK WOOFER FILTER OUTPUT SELECTOR SWIN ACINR 17 ATT ACOUTR SWACOUT C-BUS QUAL QUAL. AC OUTL...
  • Page 44 WX-4500X IC400 CXA2510AQ-T4 120µ/ 70µ + – AMS/PLY – NR BIAS FWD/REV NF1(MTL) MODE REVR TAPE/AUX MTL/NORMAL VREF MUTE/TAPE TAPE EQ FWDR NRON MODE FWD/RVS MS ON/ DETECT – AMS OUT FWDL VREFL AMS GND REVL NF2(MTL) AMSTC G2FB OFF/B 120µ/...
  • Page 45 WX-4500X IC650 LB1930M-TLM IC750 BA8270F-E2 BUS ON BUFFER BUS ON SWITCH OUT1 MOTOR CONTROL DRIVE CIRCUIT RESET CIRCUIT OUT2 SWITCH BUS ON BUFFER CLK IN S-GND P-GND BATTERY BATT B/U–C SWITCH VREF DATA DATA IN DATA OUT IC301 BA08SFP-E2 IC702, 901 RN5VD33AA-TL...
  • Page 46: Exploded Views

    WX-4500X SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so • Accessories and hardware (# mark) list number in the exploded views are not supplied. they may have some difference from the are given in the last of this parts list.
  • Page 47: Front Panel Section

    WX-4500X 7-2. FRONT PANEL SECTION FL700 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3381-282-1 PANEL ASSY, FRONT 3-228-981-01 BUTTON (SEEK –) 3-228-995-01 BUTTON (SOURCE) 3-228-994-01 BUTTON (SOUND) 3-228-980-11 BUTTON (SEEK +) 3-228-977-01 BUTTON (DSO) 3-228-991-11 BUTTON (DSPL)
  • Page 48: Main Board Section

    WX-4500X 7-3. MAIN BOARD SECTION MG-318RW/A-153 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3283-220-A MAIN BOARD, COMPLETE * 106 3-048-642-01 SHEET (FLEXIBLE) 3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT * 107 3-038-536-11 BRACKET (MD) 1-792-838-12 CABLE, FLEXIBLE FLAT (21 CORE)
  • Page 49: Cd Mechanism Section (1)

    WX-4500X 7-4. CD MECHANISM SECTION (1) (MG-318RW/A-153) M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3378-794-1 ARM ASSY, ROLLER 3-032-352-01 SPRING (ANGLE), TENSION * 152 3-032-327-02 LEVER (LE.L) X-3378-762-2 CHASSIS (M) COMPLETE ASSY 3-037-492-01 DAMPER (P)
  • Page 50: Cd Mechanism Section (2)

    WX-4500X Ver 1.1 7-5. CD MECHANISM SECTION (2) (MG-318RW/A-153) M901 M902 not supplied not supplied 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.
  • Page 51: Tape Mechanism Section

    WX-4500X 7-6. TAPE MECHANISM SECTION (MG-25E-136) HP901 M904 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3291-667-A CLUTCH (FR) ASSY 3-933-344-22 GUIDE (C) * 252 3-019-130-01 LEVER (LDG-A) 3-927-100-21 SCREW (+PS 2X10), SPECIAL 3-019-131-05 LEVER (LDG-B)
  • Page 52: Electrical Parts List

    WX-4500X SECTION 8 CD MAIN 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 53 WX-4500X CD MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark JC129 1-216-296-11 SHORT R115 1-216-821-11 METAL CHIP 1/16W JC130 1-216-296-11 SHORT R116 1-216-847-11 METAL CHIP 150K 1/16W JC131 1-216-296-11 SHORT R117 1-216-839-11 METAL CHIP 1/16W...
  • Page 54 WX-4500X DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3283-221-A DISPLAY BOARD, COMPLETE LSW966 1-771-476-11 SWITCH, KEYBOARD (WITH LED) (OFF) LSW967 1-771-476-11 SWITCH, KEYBOARD (WITH LED) (MENU) ************************ LSW968 1-771-476-11 SWITCH, KEYBOARD (WITH LED) (SEEK/AMS...
  • Page 55 WX-4500X DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R959 1-216-829-11 METAL CHIP 4.7K 1/16W 1-107-826-11 CERAMIC CHIP 0.1uF R960 1-216-831-11 METAL CHIP 6.8K 1/16W 1-162-964-11 CERAMIC CHIP 0.001uF R961 1-216-833-11 METAL CHIP 1/16W 1-107-826-11 CERAMIC CHIP 0.1uF...
  • Page 56 WX-4500X MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C327 1-107-823-11 CERAMIC CHIP 0.47uF C707 1-107-826-11 CERAMIC CHIP 0.1uF C328 1-127-573-11 CERAMIC CHIP C708 1-164-230-11 CERAMIC CHIP 220PF C400 1-164-943-11 CERAMIC CHIP 0.01uF C709 1-164-935-11 CERAMIC CHIP...
  • Page 57 WX-4500X MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > D909 8-719-820-05 DIODE 1SS181 CN300 1-794-497-11 JACK, PIN 4P (BUS AUDIO IN, < IC > SUBWOOFER OUT (MONO)) 8-759-643-48 IC BA00ASFP-E2 < CONNECTOR >...
  • Page 58 WX-4500X MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q751 8-729-421-22 TRANSISTOR UN2211 R200 1-216-864-11 METAL CHIP 1/16W Q800 8-729-421-22 TRANSISTOR UN2211 R204 1-216-809-11 METAL CHIP 1/16W Q801 8-729-020-67 TRANSISTOR XN1A312-TX R205 1-216-809-11 METAL CHIP...
  • Page 59 WX-4500X MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R414 1-216-845-11 METAL CHIP 100K 1/16W R751 1-216-077-11 RES-CHIP 1/10W R415 1-216-845-11 METAL CHIP 100K 1/16W R752 1-216-809-11 METAL CHIP 1/16W R416 1-216-845-11 METAL CHIP 100K...
  • Page 60 WX-4500X Ver 1.1 MAIN MOTOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R861 1-216-017-11 RES-CHIP 1/10W < VIBRATOR > R862 1-216-089-11 RES-CHIP 1/10W R863 1-216-089-11 RES-CHIP 1/10W X451 1-781-660-11 VIBRATOR, CERAMIC (3.58MHz) R864 1-216-049-11 RES-CHIP...
  • Page 61 WX-4500X Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS ************************************** X-3375-549-1 SCREW ASSY (6) 3-023-953-11 SCREW, +T (5X8) TAPPING 3-038-767-02 FRAME (N), ORNAMENT 1-790-926-21 CORD (WITH CONNECTOR) (POWER) 1-543-653-21 CORE ASSY, BEAD (DIVISION TYPE) (for POWER CORD)
  • Page 62 WX-4500X REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.

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