Sony HTC-WX5 Service Manual
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Sony HTC-WX5 Service Manual

Sony HTC-WX5 Service Manual

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SERVICE MANUAL
HTC-WX5 is the deck and CD
section in MHC-WX5/WX7.
CD player section
System
Laser
Laser output
Frequency response
Wavelength
Signal-to-noise ratio
Dynamic range
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength
Output Level
MICROFILM
CD
SECTION
TAPE DECK
SECTION
SPECIFICATIONS
Compact disc and digital audio system
Semiconductor laser ( =780nm)
Emission duration : continuous
Max. 44.6 µW*
*This output is the value measured at a
distance of 200mm from the objective
lens surface on the Optical Pick-up Block
with 7mm aperture.
20Hz – 20kHz (±1dB)
780 – 790 nm
More than 90dB
More than 90dB
600nm
-18dBm
HTC-WX5
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Type
Optical Pick-up Type
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000Hz (±3dB), using Sony TYPE I
(DOLBY NR OFF)
cassette 40 – 14,000Hz (±3dB), using Sony
TYPE II cassette
General
Approx. 288 × 205 × 360mm
Dimensions (w/h/d)
Mass
Approx. 4.4kg
Design and specifications are subject to change without notice.
COMPACT DISC DECK
E Model
Australian Model
Tourist Model
HTC-W555
CDM38-5BD29A
BU-5BD29AL
KSS-213B/S-N
HCD-VR90AV
TCM-230AWR2

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  • Page 1 Compact disc and digital audio system Recording system 4-track 2-channel stereo Laser Semiconductor laser ( =780nm) Frequency response 40 – 13,000Hz (±3dB), using Sony TYPE I Emission duration : continuous (DOLBY NR OFF) cassette 40 – 14,000Hz (±3dB), using Sony Laser output Max. 44.6 µW*...
  • Page 2 COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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

    TABLE OF CONTENTS 1. SERVICING NOTE ............4 2. GENERAL ................7 3. DISASSEMBLY 3-1. Loading Panel ..............8 3-2. Back Panel and CD Mechanism Deck ......8 3-3. Front Panel ..............9 3-4. TC Mechanism Deck and Cassette Holder ..... 9 3-5.

  • Page 4: Servicing Note

    SECTION 1 SERVICING NOTE HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF 1 Remove the Case. 3 Pull-out the disc tray. Turn the cam to the direction of arrow. Note for Installation (ROTARY ENCODER) Note:When attaching the Base unit, Insert the BU cam section A into the groove of BU cam.
  • Page 5 Connection and Operations of the Unit by Itself This unit cannot be operated by itself as it does not come with a power supply. Connect STR-WX5/WX7 as shown in “Connection 1” before beginning servicing. Connection 1: If there is STR-WX5/WX7. STR-WX5/WX7 SYSTEM CABLE 17P AC IN...
  • Page 6 Cold Reset NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-WX5/ WX7. This method is described in the manuals of the STR-WX5 and STR-WX7. Refer to these manuals for details. This mode is used for initializing the RAM contents.

  • Page 7: General

    SECTION 2 GENERAL Front Panel qa qs qd qf Location of Parts and Controls 1 DISC SKIP/EX-CHANGE button qj s (Deck B stop) button 2 DISC 1 button qk A (Deck B eject) button 3 DISC 2 button ql Cassette lid (Deck B) 4 DISC 3 button s;...

  • Page 8: Disassembly

    SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-1. LOADING PANEL 3 Loading panel (Remove two claws) Two claws 2 Pull-out the disc tray. 1 Turn the cam to the direction of arrow. 3-2. BACK PANEL AND CD MECHANISM DECK !¢...

  • Page 9: Front Panel

    3-3. FRONT PANEL 2 Flat type wire 1 Flat type wire (17core, CNS104) (13core, CNS102) 3 Flat type wire (15core, CNS101) 4 Connector (CN113) 6 Lead (with connector) 8 Front panel (Remove the catcer) Catcher 7 Connector (CNP105) 5 Two screws (BVTP3x10) 3-4.

  • Page 10: Disc Tray

    3-5. DISC TRAY 3 Flat type wire (8 core) Note for installation When installing the Disc tray, pull around the flat type wire to pass through the claw A and claw B, as shown in the figure. 4 Two claws 2 Pull-out the disc tray.

  • Page 11: Mechanical Adjustments

    SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution Read before adjustments Clean the following parts with a denatured alcohol-moistened To adjust the unit, operate the unit by itself using the conduction jig swab: (PFJ-1). record/playback heads pinch rollers erase head rubber belts For details on switching functions and fast forwarding the unit, etc.
  • Page 12 Turn the adjustment screw and check output peaks. If the peaks Tape Speed Adjustment (Deck B) do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1 dB of peak. Note: Set the test mode using the following method and begin tape speed adjustment.
  • Page 13 HTC-WX5 Record Bias Adjustment (Deck B) Record Level Adjustment (Deck B) CD SECTION E-F Balance (1 Track Jump) check oscilloscope Procedure: Procedure: Note: BD board CD Block is basically constructed to operate without Press the p (CD) button while pressing the DIRECTION Press the p (CD) button while pressing the DIRECTION adjustment.

  • Page 14: Diagrams

    HTC-WX5 SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION • Waveform THIS NOTE IS COMMON FOR PRINTED WIRING CD SECTION BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) 1.3Vp-p For schematic diagrams. Note:...

  • Page 15: Block Diagrams

    HTC-WX5 6-2. BLOCK DIAGRAM CD SECTIOAN IC107 CD DIGITAL D.OUT X101 16.9344MHz OPTICAL OPTICAL PICK-UP BLOCK FOCUS/TRACKING SERVO. RF AMP 89 • 90 IC101 (1/2) DETECTOR RF O L-CH LOUT1 DIGITAL SIGNAL PROCESSOR LOCK 29 LOCK LOUT2 R-CH IC103 C.OUT...

  • Page 16: Deck Section

    HTC-WX5 DECK SECTION PB A/B S1004 S1008 MS OUT B CrO A CrO RV311 28 27 PLAYBACK IC611 PB-A/B A 120/70 B 120/70 LEVEL DECK A A IN PB OUT B IN PB L HP101 PB HEAD R CH LM ON/...
  • Page 17 HTC-WX5 MAIN SECTION M12V +7.5V REG +12V REG A+7.5V Q852 IC851 D+5V +5V SW +5V REG Q102-104 IC852 A+5V +7V REG M+7V RECT IC853 D901-904 -7.5V REG (CD R) A-7.5V Q855 R CH CNB108 (PB R) R CH SYSTEM CONTROL...

  • Page 18: Printed Wiring Board Cd Section

    HTC-WX5 6-3. PRINTED WIRING BOARD CD SECTION • Refer to page 14 for Circuit Boards Location. • Semiconductor Location Ref. No. Location IC101 IC102 IC103 Q101 (Page 22)

  • Page 19: Schematic Diagram Cd Section

    HTC-WX5 6-4. SCHEMATIC DIAGRAM CD SECTION • Refer to page 14 for Waveforms. • Refer to page 30 for IC Block Diagrams. • Refer to page 31 for IC Pin Function. (Page Can not be measured.

  • Page 20: Schematic Diagram Deck Section

    HTC-WX5 6-5. SCHEMATIC DIAGRAM DECK SECTION • Refer to page 31 for IC Block Diagrams. (Page 23) The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

  • Page 21: Printed Wiring Board Deck Section

    HTC-WX5 6-6. PRINTED WIRING BOARD DECK SECTION • Refer to page 14 for Circuit Boards Location. (Page 22)

  • Page 22: Printed Wiring Board Main Section

    HTC-WX5 6-7. PRINTED WIRING BOARD MAIN SECTION • Refer to page 14 for Circuit Boards Location. (Page 26) (Page 25) (Page 18) (Page 26) (Page 29) (Page 29) (Page • Semiconductor Location (Page 21) Ref. No. Location D110 D855 D858...

  • Page 23: Schematic Diagram Main (1/2) Section

    HTC-WX5 6-8. SCHEMATIC DIAGRAM MAIN (1/2) SECTION (Page 25) (Page 28) (Page 28) (Page 19) (Page 20) (Page 24) (Page 24) (Page 24) (Page 24)

  • Page 24: Schematic Diagram Main (2/2) Section

    HTC-WX5 • Refer to page 22 for Printed Wiring Board. • Refer to page 9 for Circuit Boards Location. 6-9. SCHEMATIC DIAGRAM MAIN (2/2) SECTION (Page 23) (Page 23) (Page 23) (Page 23) (Page 27) STR-WX5/WX7 (Page 27) (Page 27)

  • Page 25: Printed Wiring Board Leaf Sw Section

    HTC-WX5 • Refer to page 14 for Circuit Boards Location. 6-10. PRINTED WIRING BOARD LEAF SW SECTION (Page 22) 6-11. SCHEMATIC DIAGRAM LEAF SW SECTION (Page 23)

  • Page 26: Printed Wiring Board Panel Section

    HTC-WX5 6-12. PRINTED WIRING BOARD PANEL SECTION • Refer to page 14 for Circuit Boards Location. (Page 22) (Page 22) (Page 22)

  • Page 27: Schematic Diagram Panel Section

    HTC-WX5 6-13. SCHEMATIC DIAGRAM PANEL SECTION (Page 24) (Page 24) (Page 24)

  • Page 28: Schematic Diagram Cd Motor Section

    HTC-WX5 6-14. SCHEMATIC DIAGRAM CD MOTOR SECTION • Refer to page 31 for IC Block Diagrams. (Page 23) (Page 23)

  • Page 29: Printed Wiring Board Cd Motor Section

    HTC-WX5 6-15. PRINTED WIRING BOARD CD MOTOR SECTION • Refer to page 14 for Circuit Boards Location. (Page 22) (Page 22)

  • Page 30: Ic Block Diagrams

    HTC-WX5 6-16. IC BLOCK DIAGRAMS • CD SECTION IC102 BA5941FP IC101 CXA1992AR – – + – + – RF SUMMING PD2 IV PD1 IV FE_BIAS SENS2 LEVEL SHIFT ↓ – SENS1 LEVEL SHIFT LASER POWER CONTROL F IV AMP FE AMP –...
  • Page 31 • DECK SECTION IC602 uPC1330HA INVERTER COMPARATER SW R1 GND SW P1 CONT GND SW P2 GND SW R2 • CD motor section IC701 M54641L REFERENCE POWER OUT2 INPUT AMP. AMP. CONTROL POWER OUT1 INPUT AMP. AMP. IC801 BA6286N PO WER SAVE VREF OUT2...

  • Page 32: Ic Pin Functions

    6-17. IC PIN FUNCTIONS • IC101 FOCUS/TRACKING/SLED SERVO RF AMP (CXA1992AR) (BD BOARD) Pin No. Pin Name Function Focus error amplifier output Connected internally to the window comparator input for bias adjustment Focus error input FDFCT Capacitor connection pin for defect time constant Ground this pin through a capacitor for cutting the focus servo high-frequency gain External time constant setting pin for boosting the focus servo low-frequency FE O...
  • Page 33 Pin No. Pin Name Function RF summing amplifier inverted input RF M The RF amplifier gain is determined by the resistance connected between this pin and RFO pin RFTC External time constant setting pin during RF level control APC amplifier output APC amplifier input RF I-V amplifier inverted input Connect these pins to the photo diode A+C and B+D pins...
  • Page 34 • IC103 DIGITAL SIGNAL PROCESSOR (CXD2529Q) (BD BOARD) Pin No. Pin Name Function – +5V power supply – Ground LMUT Lch “L” detection flog (Not used) RMUT Rch “L” detection flog (Not used) ACDT Test output (Not used) CKOUT Master clock divider output (Not used) SQCK Clock input for SQSO read out SQSO...
  • Page 35 Pin No. Pin Name Function AVSS – Analog ground CLTV Control voltage input for VCO AVDD – Analog power supply EFM signal input BIAS Asymmetry circuit constant current input ASYI Asymmetry comparate voltage input ASYO EFM full swing output (“L” =V , “H”...
  • Page 36 Pin No. Pin Name Function — – Not used AVSS – Analog ground AVDD – Analog power supply AOUT1 Lch analog output AIN1 Lch opamp input LOUT1 Lch line output AVSS – Analog ground XVDD – Master clock power supply XTAI X’tal oscillator circuit input XTAO...
  • Page 37 • IC101 MASTER CONTROL (uPD780016AYGF-022-3BA) (MAIN BOARD) Pin No. Pin Name Function CAPM-EMG (+) Capstan motor control 1 (+) signal output 2 to 7 LED1 to LED6 Not used – Ground X’tal (5MHz) – Power supply (+5V) Not used – Power supply (+5V) RESET Reset signal input...
  • Page 38 Pin Name Function Pin No. TBL-L Table motor control output TBL-R Not used LOAD-OUT Loading motor control signal output LOAD-IN CD-PAUSE LED IN/OFF control output DECO2 LED IN/OFF control output CD-PLAY LED IN/OFF control output EXIST3 LED IN/OFF control output EXIST1 LED IN/OFF control output DISC3...

  • Page 39: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Abbreviation The components identified by mark ! or have some differences from the original one. EA3 : Saudi Arabia model dotted line with mark ! are critical for safety. •...

  • Page 40: Front Panel Section

    X-4951-672-1 FRONT PANEL ASSY 4-210-062-01 DAMPER X-4951-674-1 ESCUTCHEON (TC) ASSY 1-690-589-31 WIRE (FLAT TYPE) (13 CORE) X-4951-673-1 ESCUTCHEON (CD) ASSY 3-019-456-11 SCREW STEP 4-962-708-11 EMBLEM (4-A), SONY 4-900-888-01 EJECT (LEVER-L) 4-900-881-11 BUTTON (EJECT A) 4-900-889-01 EJECT (LEVER-R) 4-900-882-11 BUTTON (EJECT B) * 71 1-669-420-11 CD (P) BOARD 4-951-620-01 SCREW (2.6 ×...

  • Page 41: Cd Mechanism Section 1 (Cdm38-5Bd29A)

    7-3. CD MECHANISM SECTION 1 (CDM38-5BD29A) M701 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-981-789-01 BRACKET (2), YOKE 4-977-941-01 BEARING (WORM) 4-977-945-63 TRAY (TURN) * 209 1-658-576-11 SENSOR BOARD X-4946-665-1 SHAFT ASSY, WORM 4-934-376-01 SHAFT (ROLLER) 4-977-943-01 BELT (TURN) (1.2) 4-981-187-01 COLLAR (WORM) 4-977-956-01 WHEEL, WORM...

  • Page 42: Cd Mechanism Section 2 (Cdm38-5Bd29A)

    7-4. CD MECHANISM SECTION 2 (CDM38-5BD29A) supplied not supplied M801 BU-5BD29A S811 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-981-789-11 BRACKET (2), YOKE * 260 X-4947-846-1 CHASSIS (CDM) ASSY 4-985-672-01 SCREW (+PTPWH M2.6 × 6), FLOATING 4-977-954-01 PULLEY (SL) 4-977-953-01 GEAR (SL-A) * 262...

  • Page 43: Base Unit Section (Bu-5Bd29A)

    7-5. BASE UNIT SECTION (BU-5BD29A) M101 M102 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks ! 301 8-848-379-31 OPTICAL PICK-UP BLOCK KSS-213BA/F-NP 4-917-564-01 GEAR (P), FLATNESS 1-769-069-11 WIRE (FLAT TYPE) (16 CORE) * 307 A-4699-522-A BD BOARD, COMPLETE 4-951-620-01 SCREW (2.6 ×...

  • Page 44: Tc Mechanism Section 1 (Tcm230Awr2)

    7-6. TC MECHANISM SECTION 1 (TCM230AWR2) *NOTE: Two types of parts which are not interchangeable are available for the Head deck (A) ASSY and Head deck (B) ASSY. When replacing the parts, refer to the following figure, and use the appropriate part.

  • Page 45: Tc Mechanism Section 2 (Tcm230Awr2)

    7-7. TC MECHANISM SECTION 2 (TCM230AWR2) *NOTE: Two types of parts which are not interchangeable are available for the mechanical block assembly. When replacing the parts, refer to the following figure, and use the appropriate part. Parts with “P” mark: 230PWR2 Parts without “P”...

  • Page 46: Electrical Parts List

    SECTION 8 AUDIO ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS: • SEMICONDUCTORS parts list may be different from the parts uF: µF In each case, u: µ, for example: specified in the diagrams or the components •...
  • Page 47 AUDIO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R625 1-249-429-11 CARBON 1/4W C169 1-163-121-00 CERAMIC CHIP 150PF C170 1-163-099-00 CERAMIC CHIP 18PF < VARIABLE RESISTOR > C171 1-163-237-11 CERAMIC CHIP 27PF C173 1-163-038-91 CERAMIC CHIP 0.1uF RV301 1-238-598-11 RES, ADJ, CARBON 2.2K...
  • Page 48 CD (P) CONNECTOR Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R122 1-216-097-91 RES, CHIP 100K 1/10W < LED > R123 1-216-099-00 METAL CHIP 120K 1/10W R124 1-216-091-00 METAL CHIP 1/10W D224 8-719-071-42 LED SEL5723C-TP15 (®) R125 1-216-069-00 METAL CHIP 6.8K...
  • Page 49 CONNECTOR LEAF SW MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > A-4414-231-A MAIN BOARD, COMPLETE (JE,EA4,TH) ********************* R703 1-249-435-11 CARBON 1/4W A-4419-960-A MAIN BOARD, COMPLETE (EXCEPT JE,EA4,TH) R704 1-249-429-11 CARBON 1/4W ********************* R705 1-249-417-11 CARBON 1/4W F...
  • Page 50 3300uF Q343 8-729-029-66 TRANSISTOR DTC114ESA C854 1-128-549-51 ELECT 3300uF Q852 8-729-018-60 TRANSISTOR 2SD2012-LC C861 1-126-768-11 ELECT 2200uF Q855 8-729-018-59 TRANSISTOR 2SB1375(LB SONY) C862 1-104-665-11 ELECT 100uF C863 1-126-929-11 ELECT 4700uF < RESISTOR > C867 1-104-664-11 ELECT 47uF R122 1-247-807-31 CARBON...
  • Page 51 MAIN MOTOR (SLIDE) MOTOR (TURN) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R324 1-247-876-11 CARBON 1/4W 1-658-578-11 MOTOR (SLIDE) BOARD R325 1-247-876-11 CARBON 1/4W ******************* R326 1-249-417-11 CARBON 1/4W F R327 1-249-437-11 CARBON 1/4W < CAPACITOR > R328 1-249-425-11 CARBON 4.7K...
  • Page 52 SENSOR TC(A) TC(B) TC(P) TC LED REGULATOR Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-669-418-11 REGULATOR BOARD 1-669-421-11 TC (P) BOARD *************** ************ < CAPACITOR > < RESISTOR > C850 1-164-159-11 CERAMIC 0.1uF R203 1-247-807-31 CARBON 1/4W C851 1-164-159-11 CERAMIC...
  • Page 53 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks MISCELLANEOUS ************* 1-782-152-11 CORD (WITH CONNECTOR) 1-773-012-11 WIRE (FLAT TYPE) (15 CORE) 1-775-173-11 WIRE (FLAT TYPE) (17 CORE) 1-773-114-11 WIRE (FLAT TYPE) (19 CORE) 1-690-589-31 WIRE (FLAT TYPE) (13 CORE) 1-452-879-11 MAGNET 1-776-042-11 WIRE (FLAT TYPE) (8 CORE) HP101...
  • Page 54 HTC-WX5 Sony Corporation 9-928-993-11 99G1627-1D Home Audio Company Printed in Japan ©1999.7 Published by Quality Assurance Dept.

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