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Sony HCD-BX50BTi Service Manual
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Sony HCD-BX50BTi Service Manual

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HCD-BX20i/BX50BTi
SERVICE MANUAL
Ver. 1.1 2008.03
• HCD-BX20i is the amplifi er, CD player, tuner and
iPod section in CMT-BX20i.
• HCD-BX50BTi is the amplifi er, bluetooth, CD player,
tuner and iPod section in CMT-BX50BTi.
• The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc.
and any use of such marks by Sony Corporation is under license. Other
trademarks and trade names are those of their respective owners.
• MPEG Layer-3 audio coding technology and patents licensed from
Fraunhofer IIS and Thomson.
• iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
Mainunit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(The United States model only)
With 6 ohm loads, both channels driven, from 120 – 10,000Hz; rated 25 watts
per channel minimum RMS power, with no more than 10% total harmonic
distortion from 250 milliwatts to rated output.
Amplifier section (BX20i)
DIN power output (rated):
18 + 18 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 25 + 25 W (6 ohms at 1 kHz,
10% THD)
Inputs
AUDIO IN (stereo mini jack): voltage 250 mV, impedance 47 kilohms
Outputs
PHONES (stereo mini jack): accepts headphones of 8 ohms or more
SPEAKER: accepts impedance of 6 to 16 ohms
Amplifier section (BX50BTi)
Continuous RMS power output (reference): 25 + 25 watts (6 ohms at
1 kHz, 10% THD)
Inputs
AUDIO IN (stereo mini jack): voltage250mV, impedance 47 kilohms
Outputs
PHONES (stereo mini jack): accepts headphones of 8 ohms or more
SPEAKER: accepts impedance of 6 ohms
Sony Corporation
9-889-020-02
2008C05-1
Audio Business Group
©
2008.03
Published by Sony Techno Create Corporation
Photo: HCD-BX20i
Model Name Using Similar Mechanism
Base Unit Name
Optical Pick-up Block Name

SPECIFICATIONS

Bluetooth section (BX50BTi)
Communication system: Bluetooth Standard version 2.0
Output: Bluetooth Standard Power Class 2
Maximum communication range: Line of sight approx. 10 m
Frequency band: 2.4 GHz band (2.4000 GHz – 2.4835GHz)
Modulation method: FHSS
Compatible Bluetooth profiles
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
Supported codecs:
Receive: SBC (Sub Band Codec), MP3
Transmit: SBC (Sub Band Codec)
The actual range will vary depending on factors such as obstacles
1)
between devices, magnetic filds around a microwave oven, static
electricity, reception sensitivity, antenna's performance, operating
system, software application, etc.
2)
Bluetooth standard profiles indicate the purpose of Bluetooth
communication between devices.
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* This output is the value measurement at a distance of 200mm from the
objective lens surface on the Optical Pick-up Block with 7mm aperture.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
COMPACT DISC RECEIVER
US Model
Canadian Model
HCD-BX20i/BX50BTi
Australian Model
Singapore Model
HCD-BX20i
HCD-BX5BT/EC68
BU-K6BD90-WOD
KSM-213DCP
1)
2)
:
– Continued on next page –

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  • Page 1: Specifications

    • The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. Model Name Using Similar Mechanism HCD-BX5BT/EC68 and any use of such marks by Sony Corporation is under license. Other Base Unit Name BU-K6BD90-WOD trademarks and trade names are those of their respective owners.
  • Page 2 THESE COMPONENTS WITH SONY PARTS PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    HCD-BX20i/BX50BTi SAFETY CHECK-OUT TABLE OF CONTENTS After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: SERVICING NOTES ..........Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. GENERAL ..............

  • Page 4: Servicing Notes

    IC pins, etc. HCD-BX20i: Canadian model 3-293-463-0[] • Usable with ordinary solder HCD-BX50BTi: US model 3-293-464-0[] It is best to use only unleaded solder but unleaded solder may HCD-BX50BTi: Canadian model 3-293-465-0[] also be added to ordinary solder.
  • Page 5 HCD-BX20i/BX50BTi HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF Note: Please insert a screwdriver after removing the panel (side L). About disassembly of the panel (side L), please refer to “3-2. Panel (Side L/R)” (page 13). Open the tray. Insert the driver.

  • Page 6: General

    To use an iPod, refer to the user’s guide of your iPod. to adjust the level. Sony cannot accept responsibility in the event that data recorded to iPod is lost or damaged when using an iPod with this unit. Playing a CD/MP3 disc...

  • Page 7: Other Operations

    HCD-BX20i/BX50BTi Other Operations Creating your own program Using the Timers (Program Play) The system offers two timer functions. If you use the Play Timer with the Sleep Timer, the Sleep Timer has priority.  Press FUNCTION +/ (or FUNCTION on the unit) Use buttons on the remote to use the timer functions.

  • Page 8: Guide To Parts And Controls

    Guide to parts and controls This manual mainly explains operations using the remote, but the same operations can also be performed using the buttons on the unit having the same or similar names. Unit (HCD-BX50BTi/Compact Disc Receiver) Top panel Front panel...

  • Page 9: Setting The Clock

    HCD-BX20i/BX50BTi Unit: CD (play/pause) Setting the clock button Unit: VOL +/– button Press to select the CD function. Remote: VOLUME +/– button Press to start or pause playback of a disc. Use buttons on the remote to set the Press to adjust the volume. clock.

  • Page 10: Disassembly

    HCD-BX20i/BX50BTi SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. PANEL (SIDE L/R) (Page 11) 3-3. TOP PANEL BLOCK (Page 11) 3-5. FRONT PANEL BLOCK 3-4. TOP KEY BOARD, 3-6. REAR PANEL BLOCK (Page 12) IP BOARD, PANEL TOP (IP) (Page 13)

  • Page 11: Panel (Side L/R)

    HCD-BX20i/BX50BTi Ver. 1.1 Note: Follow the disassembly procedure in the numerical order given. 3-2. PANEL (SIDE L/R) screw (BVTP3 × 10) panel (side L) screw (BVTP3 × 10) panel (side R) two screws (BVST3 × 6 (BX20i: US, Canadian/BX50BTi) /BVTT3 × 6 (BX20i: Australian, Singapore)) two screws (BVST3 ×...

  • Page 12: Top Key Board, Ip Board, Panel Top (Ip)

    HCD-BX20i/BX50BTi Ver. 1.1 3-4. TOP KEY BOARD, IP BOARD, PANEL TOP (IP) panel top (IP) button (function) button (function B) base (IP) assy button (tune) four screws button (enter) (BVTP2.6 ) connector TOP KEY board (CN101) escutcheon button IP board (VOL) four screws four screws...

  • Page 13: Rear Panel Block

    HCD-BX20i/BX50BTi Ver. 1.1 3-6. REAR PANEL BLOCK rear panel block flexible flat cable (9 core) (BX20i: Singapore model) (CN310) connector (CN905) connector (CN902) two screws (B3) three screws (BVST3 × 6: Australian, Singapore /BVTT3 × 6: US, Canadian) connector (CN313) 3-7.

  • Page 14: Amp Board Block

    HCD-BX20i/BX50BTi 3-8. AMP BOARD BLOCK two screws (BV3) flexible flat cable (7 core) (AMP board: CN308/MAIN board: CN309) AMP board block connector (CN312) connector (CN320) 3-9. POWER BOARD BLOCK four screws screw POWER board block (BV3) coating clip connector (CN904) connector (CN901)

  • Page 15: Main Board

    HCD-BX20i/BX50BTi 3-10. MAIN BOARD connector connector (CN316) (CN303) two screws (BVTT3 × 6) MAIN board 3-11. LOADING MECHANISM BLOCK (BX20i) (BX50BTi) two screws two screws BT board block (BVTP3 × 8) (BVTP3 × 8) holder (CD) three screws (BV3) loading mechanism block door CD flexible flat cable (5 core) (CN001)

  • Page 16: Base Unit

    HCD-BX20i/BX50BTi 3-12. BASE UNIT floating screw insulator two floating screws two springs (insulator) two floating screws insulator two springs (insulator) base unit insulator insulator loading (BK) assy – Bottom view – 3-13. BELT position of belt belt belt claw claw tray (AU)

  • Page 17: Op Base Assy (Ksm-213D)

    HCD-BX20i/BX50BTi 3-14. OP BASE ASSY (KSM-213D) op base assy (KSM-213D) flexible flat cable (16 core) (CN301) CD board Remove four solders.

  • Page 18: Test Mode

    HCD-BX20i/BX50BTi SECTION 4 TEST MODE COLD RESET TUNER STEP CHANGE The cold reset clears all data including preset data stored in the A step of AM tuning interval can be changed over between 9 kHz RAM to initial conditions. Execute this mode when returning the or 10 kHz.
  • Page 19 HCD-BX20i/BX50BTi CD SERVICE MODE This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the optical pick-up. Procedure: 1. Press the [ ] button to turn the power on. 2. Press the [FUNCTION] button to select “CD”. 3.

  • Page 20: Electrical Checks

    HCD-BX20i/BX50BTi SECTION 5 ELECTRICAL CHECKS TUNER SECTION CD SECTION FM TUNE LEVEL CHECK Note: 1. CD Block is basically constructed to operate without adjust- ment. signal generator 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicat- 3. Use an oscilloscope with more than 10 MΩ impedance. 4.

  • Page 21: Diagrams

    HCD-BX20i/BX50BTi SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM - CD SERVO Section - AVDD +3.3V DETECTOR FNi1 (A) 97 FPi1 (B) CD-L (Page 23) AGCi RFEQo 81 RFi 94 FNi2 (C) 82 RFRPi R-CH 96 FPi2 (D) RFRP RFZI 100 TNi (E) TEZi 98 TPi (F) LASER DIODE...

  • Page 22: Block Diagram - Ipod, Tuner, Bluetooth Section

    HCD-BX20i/BX50BTi 6-2. BLOCK DIAGRAM - iPod, TUNER, BLUETOOTH Section - CN102 (iPod) iPod-L L-CH LINE AMP (Page 23) LINE-OUT-L IC303 R-CH LINE-OUT-R MUTING Q103, 105 MUTING iPod INTERFACE CONTROL IC101 SWITCH Q106 37 AUDIO_MUTE 24 TXD_iPod D102 SYSTEM CONTROLLER 23 RXD_iPod IC301 (2/4) VBUS +5V TXD_DMPORT...

  • Page 23: Block Diagram - Main Section

    HCD-BX20i/BX50BTi 6-3. BLOCK DIAGRAM - MAIN Section - R-CH J301 AUDIO IN (Page 21) CD-L INPUT SELECTOR IC312 BT-L (Page 22) BT OUT-L (Page 22) (BX50BTi) (BX50BTi) TUNER-L INPUT SELECTOR, (Page 22) Q320 Q319 ELECTRICAL VOLUME, SURROUND/TONE CONTROL IC304 (BX50BTi) (BX20i) OUTPUT SELECTOR IC309...

  • Page 24: Block Diagram - Panel, Power Supply Section

    HCD-BX20i/BX50BTi Ver. 1.1 6-4. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section - T801 DC/DC CONVERTER FL901 FLUORESCENT INDICATOR TUBE RECT D904, 905 PROTECT (Page 23) Q903 GRID DRIVE MAIN POWER Q905 TRANSFORMER T901 59, 60 1 – 31, 61 – 64 33 –...
  • Page 25 HCD-BX20i/BX50BTi Ver. 1.1 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Circuit Boards Location (In addition to this, the necessary note is printed in each block.) VOL SELECT board (BX20i: Singapore model) For Printed Wiring Boards. For Schematic Diagrams.

  • Page 26: Printed Wiring Boards - Cd Section

    HCD-BX20i/BX50BTi 6-5. PRINTED WIRING BOARDS - CD Section - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. CD BOARD (CONDUCTOR SIDE) CD BOARD (COMPONENT SIDE) M401 (SPINDLE) S201 (LIMIT) C404 C403 R402 IC401 TP124 M402 (VC) (SLED) C122...

  • Page 27: Schematic Diagram - Cd Board

    HCD-BX20i/BX50BTi 6-6. SCHEMATIC DIAGRAM - CD Board - • See page 42 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Function Description. R127 C107 R126 C136 R125 R142 R139 R129 Q301 R143 C112 C153...

  • Page 28: Printed Wiring Boards - Bluetooth Section

    HCD-BX20i/BX50BTi 6-7. PRINTED WIRING BOARDS - BLUETOOTH Section - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. (Page 32) MAIN BOARD ANT BOARD BT BOARD CN323 (SIDE A) FB905 BLUETOOTH MODULE CN904 ANT901 PATTERN IC903 ANTENNA (FOR BLUETOOTH) C903...

  • Page 29: Schematic Diagram - Bluetooth Section

    HCD-BX20i/BX50BTi 6-8. SCHEMATIC DIAGRAM - BLUETOOTH Section - • See page 42 for IC Block Diagrams. CN902 R900 SPI_MOSI R913 R935 SPI_CLK +3.3V REGULATOR R936 SPI_MISO (NC) IC903 XC6213B332MR R937 SPI_CSB VOUT FB906 FB907 C905 C958 C957 C901 C904 C902 C903 C906 CN901...

  • Page 30: Printed Wiring Board - Ip Board

    HCD-BX20i/BX50BTi 6-9. PRINTED WIRING BOARD - IP Board - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. IP BOARD IP BOARD (SIDE A) (SIDE B) R105 C102 IC103 C105 R135 IC102 C109 R122 C101 X101 MAIN BOARD IC101 CN325...

  • Page 31: Schematic Diagram - Ip Board

    HCD-BX20i/BX50BTi 6-10. SCHEMATIC DIAGRAM - IP Board - • See page 42 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Function Description. IP BOARD IC B/D CN102 (iPod) IC102 CL109 R110 100k TK11133CSCL-G DGND...

  • Page 32: Printed Wiring Boards - Main Section

    HCD-BX20i/BX50BTi Ver. 1.1 6-11. PRINTED WIRING BOARDS - MAIN Section - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. ANTENNA FM 75 COAXIAL (Page 28) M901 (Page 30) (Page 26) TUNER (FM/AM) (FAN) SUPPLIED WITH THE IP BOARD BT BOARD ASSEMBLED BLOCK...

  • Page 33: Schematic Diagram - Main Section (1/3)

    HCD-BX20i/BX50BTi 6-12. SCHEMATIC DIAGRAM - MAIN Section (1/3) - • See page 42 for IC Block Diagrams. (BX20i) (1/3) JR201 R-IN R101,201 2.2K (BX20i) AGND R201 4.7K (BX50BTi) R101 JR101 L-IN C116 C216 STBY BT FUNC OUT_R C368 R117 R217 ±PRE C369 C367...

  • Page 34: Schematic Diagram - Main Section (2/3)

    HCD-BX20i/BX50BTi Ver. 1.1 6-13. SCHEMATIC DIAGRAM - MAIN Section (2/3) - • See page 42 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Function Description. (Page 33) (2/3) C362 C498 R487 R473 R485 100k...

  • Page 35: Schematic Diagram - Main Section (3/3)

    HCD-BX20i/BX50BTi 6-14. SCHEMATIC DIAGRAM - MAIN Section (3/3) - • See page 42 for IC Block Diagrams. (Page 33) (Page 31) (Page 33) (3/3) CLP311 EP301 CN325 IC307 KIA7809API R431 R419 C365 C359 (CHASSIS) D329 MA2J1110GLS0 CN316 REGULATOR SP-L HP-L HPGND SP-R HP-R...

  • Page 36: Printed Wiring Boards - Headphone/Amp Section

    HCD-BX20i/BX50BTi Ver. 1.1 6-15. PRINTED WIRING BOARDS - HEADPHONE/AMP Section - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. (Page 32) (Page 32) MAIN BOARD MAIN BOARD CN309 CN321 AMP BOARD 11, 12 1-876-053- (11, 12) PHONES HP BOARD J301...

  • Page 37: Schematic Diagram - Headphone/Amp Section

    HCD-BX20i/BX50BTi 6-16. SCHEMATIC DIAGRAM - HEADPHONE/AMP Section - • See page 42 for IC Block Diagrams. IC601 STK433-730-E POWER AMP R502 C502 R505 C504 470p 470p CN308 C511 R501 R521 C501 C505 R-IN 100p 100p C512 R506 R522 10 50V L-IN STBY CN320...

  • Page 38: Printed Wiring Boards - Panel Section

    HCD-BX20i/BX50BTi Ver. 1.1 6-17. PRINTED WIRING BOARDS - PANEL Section - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location Ref. No. Location D807 C-12 PANEL BOARD D902 D-12 D903 D904 C-12 C812 D905 C-12 R933...

  • Page 39: Schematic Diagram - Panel Section

    HCD-BX20i/BX50BTi 6-18. SCHEMATIC DIAGRAM - PANEL Section - • See page 42 for IC Block Diagrams. (Page (BX20i) (BX20i) TUNER/ BAND AUDIO IN CN802 iPod BLUETOOTH TUNER/ BAND (BX50BTi) (BX50BTi) R856 R855 R854 R853 4.7k 2.2k FL901 S804 S807 S806 S805 FLUORESCENT INDICATOR TUBE R868...

  • Page 40: Printed Wiring Board - Power Board

    HCD-BX20i/BX50BTi Ver. 1.1 6-19. PRINTED WIRING BOARD - POWER Board - • See page 25 for Circuit Boards Location. • : Uses unleaded solder. (BX20i: SP) POWER BOARD SUB POWER D906 TRANSFORMER (BX20i: SP) (AC IN) LINE FILTER VOL SELECT BOARD (EXCEPT BX20i: SP) (BX20i: SP) (EXCEPT BX20i: SP)

  • Page 41: Schematic Diagram - Power Board

    HCD-BX20i/BX50BTi Ver. 1.1 6-20. SCHEMATIC DIAGRAM - POWER Board - D923 MC2838 D922 MA2J1110GLS0 C914 R905 R904 R906 (BX20i:SP) 4.7k 4.7k C921 R909 R908 R910 R911 1000 T902 TRANSFORMER D908 MC2838 CN905 CN906 JW935 S.115V S.115V CN904 D907 S.220-240V S.220-240V (BX20i:SP) USB UNREG GND MC2836...
  • Page 42 HCD-BX20i/BX50BTi • Waveforms • IC Block Diagrams - CD Board - - IP Board - - PANEL Board - – CD Board – IC201 TK63115SCL-G@GT IC401 BA5826SFP-E2 IC101 (RFi) IC101 (XOUT) IC902 (OSCI) (CD play mode) VIN 1 VO1(–) D.BUFF THERMAL &...
  • Page 43 HCD-BX20i/BX50BTi – MAIN Board – IC201 R5523N001B-TR-F 5 OUT GATE CURRENT CONTROL LIMIT 4 IN UVLO FLAG DELAY THERMAL SHUTDOWN IC304 BD3499FV-E2 IC309, 312 MC14052BDTR2 28 FIL INPUT INPUT 27 GND 2-COM SELECTOR GAIN 1-COM 26 SDA PC BUS LOGIC 25 SCL SEL2 INVERTER...
  • Page 44 HCD-BX20i/BX50BTi – AMP Board – IC601 STK433-730-E PRE DRIVE FINAL DRIVE PRE DRIVE FINAL DRIVE STANDBY CIRCUIT – PANEL Board – IC902 PT6302LQ-010 VSS 49 OSCI 50 OSCILLATOR OSCO 51 TIMING TIMING RSTB 52 GENERATOR 1 GENERATOR 2 SG35 SG34 DUTY CONTROL GRID SG33...
  • Page 45 HCD-BX20i/BX50BTi • IC Pin Function Description CD BOARD IC101 (CD-MP3 PROCESSOR) TC94A70FG-006 (D, HZ Pin No. Pin Name Description AVSS3 Ground terminal RFZi RF ripple zero crossing signal input terminal RFRP RF ripple signal output terminal SBAD/RFDC Sub beam addition signal or RF peak detection signal output terminal Not used Focus error signal output terminal Not used...
  • Page 46 HCD-BX20i/BX50BTi Pin No. Pin Name Description SFSY/LOCK Not used ZDET Zero detection signal output terminal Not used GPIN Not used Microcomputer interface mode selection signal input terminal Fixed at "H" in this set DOUT (PO6) Digital audio data output terminal Not used AOUT (PO7) Audio data output terminal...
  • Page 47 HCD-BX20i/BX50BTi IP BOARD IC101 R5F21246SN060FP (iPod INTERFACE) Pin No. Pin Name Description Not used Not used Not used Not used MODE Mode selection signal input terminal "L": single chip mode, "H": serial I/O mode, 6, 7 P34, P44 Not used RESET Reset signal input from the reset signal generator "L": reset...
  • Page 48 HCD-BX20i/BX50BTi MAIN BOARD IC301 R5F3640DDFA (SYSTEM CONTROLLER) Pin No. Pin Name Description 1 to 3 CD BUS2 to CD BUS0 Serial data output to the CD-MP3 processor SIRCS SIRCS signal input from the remote control receiver STBY-RELAY Power on/off control signal output terminal "H": power on TUNER TUNED Tuning detection signal input from the tuner (FM/AM)
  • Page 49 HCD-BX20i/BX50BTi Pin No. Pin Name Description CD DRIVER MUTE Muting signal output to the coil/motor driver MODEL IN Setting terminal for the model Not used Power supply terminal (+3.3V) Not used Ground terminal Not used I-POWER MONITOR Power monitor input terminal DEC BUS SEL Bus selection signal output terminal Not used...

  • Page 50: Exploded Views

    HCD-BX20i/BX50BTi Ver. 1.1 SECTION 7 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • Color Indication of Appearance Parts Ex- The components identifi ed by mark 0 they may have some difference from the ample: or dotted line with mark 0 are critical for original one.

  • Page 51: Top Panel Section

    HCD-BX20i/BX50BTi Ver. 1.1 7-2. TOP PANEL SECTION not supplied not supplied (TOP KEY board) not supplied (HOLD board) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-087-053-01 +BVTP2.6 (3CR) 3-282-732-41 BUTTON (FUNCTION) (TUNER/BAND, AUDIO IN, 3-282-748-01 BUTTON (VOL) (VOL +, VOL –) FUNCTION, REPEAT/FM MODE, PLAY MODE/ (BX20i: US, CND/BX50BTi)

  • Page 52: Front Panel Section

    HCD-BX20i/BX50BTi Ver. 1.1 7-3. FRONT PANEL SECTION not supplied (PANEL board) (BX50BTi) not supplied (ANT board) not supplied FL901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1444-400-A PANEL ASSY, FRONT (BX20i: US) 1-834-114-11 CABLE, COAXIAL (WITH U.F.L CON) (BX50BTi) A-1466-449-A PANEL ASSY, FRONT (BX20i: CND) 3-087-053-01...

  • Page 53: Main Board Section

    HCD-BX20i/BX50BTi Ver. 1.1 7-4. MAIN BOARD SECTION (BX20i: SP) not supplied (VOL SELECT board) not supplied (GUARD board) not supplied not supplied (AMP board) M901 supplied not supplied (5VREG board) not supplied (9VREG board) supplied POWER board section Ref. No. Part No.

  • Page 54: Power Board Section

    HCD-BX20i/BX50BTi Ver. 1.1 7-5. POWER BOARD SECTION F902 not supplied not supplied (BX50BTi) F901 (POWER board) not supplied not supplied T901 not supplied not supplied not supplied (HP board) loading mechanism section not supplied Note: When exchanging or removing Ref. No. 208, Please be sure to refer to “3-5.

  • Page 55: Loading Mechanism Section

    HCD-BX20i/BX50BTi 7-6. LOADING MECHANISM SECTION not supplied not supplied (MOTOR board) not supplied base unit section Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1242-967-A LOADING (BK) ASSY 4-227-045-41 SPRING (INSULATOR) 3-080-478-01 BELT 4-229-005-41 INSULATOR 4-985-672-01 SCREW (+PTPWH M2.6), FLOATING...

  • Page 56: Base Unit Section (Bu-K6Bd90-Wod)

    HCD-BX20i/BX50BTi 7-7. BASE UNIT SECTION (BU-K6BD90-WOD) (including sled motor (M402), spindle motor (M401)) spindle motor (M401) sled motor (M402) S201 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1217-914-A CD BOARD, COMPLETE 0 301 A-4735-357-A BASE ASSY, OP (KSM-213D) S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

  • Page 57: Electrical Parts List

    HCD-BX20i/BX50BTi Ver. 1.1 SECTION 8 5VREG 9VREG ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in • RESISTORS When indicating parts by reference num- the parts list may be different from the All resistors are in ohms. ber, please include the board name. parts specifi...
  • Page 58 HCD-BX20i/BX50BTi Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R524 1-216-825-11 METAL CHIP 2.2K 1/10W < DIODE > R542 1-260-087-11 CARBON 1/2W R543 1-216-853-11 METAL CHIP 470K 1/10W D901 6-500-335-01 DIODE MC2838-T112-1 R544 1-216-853-11 METAL CHIP 470K 1/10W D902...
  • Page 59 HCD-BX20i/BX50BTi Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C113 1-164-360-11 CERAMIC CHIP 0.1uF R933 1-216-829-11 METAL CHIP 4.7K 1/10W C115 1-124-778-00 ELECT CHIP 22uF 6.3V R934 1-216-829-11 METAL CHIP 4.7K 1/10W C116 1-164-360-11 CERAMIC CHIP 0.1uF R935 1-216-809-11 METAL CHIP...
  • Page 60 HCD-BX20i/BX50BTi Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > R222 1-216-845-11 METAL CHIP 100K 1/10W R223 1-216-845-11 METAL CHIP 100K 1/10W Q301 6-551-120-01 TRANSISTOR 2SA2119K R301 1-216-845-11 METAL CHIP 100K 1/10W R302 1-216-864-11 SHORT CHIP <...
  • Page 61 HCD-BX20i/BX50BTi Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1466-251-A IP BOARD, COMPLETE R137 1-216-809-11 METAL CHIP 1/10W ****************** R138 1-216-809-11 METAL CHIP 1/10W R139 1-216-845-11 METAL CHIP 100K 1/10W < CAPACITOR > R140 1-216-845-11 METAL CHIP...
  • Page 62 HCD-BX20i/BX50BTi MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C213 1-162-962-11 CERAMIC CHIP 470PF C371 1-130-495-00 MYLAR 0.1uF C214 1-126-160-11 ELECT C375 1-130-495-00 MYLAR 0.1uF (BX50BTi) C377 1-130-495-00 MYLAR 0.1uF C215 1-126-960-11 ELECT C379 1-130-495-00 MYLAR 0.1uF (BX50BTi)
  • Page 63 HCD-BX20i/BX50BTi MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC304 6-712-055-01 IC BD3499FV-E2 JR343 1-216-296-11 SHORT CHIP IC307 6-700-830-56 IC KIA7809API JR344 1-216-296-11 SHORT CHIP IC309 8-759-430-37 IC MC14052BDTR2 (BX50BTi) JR345 1-216-296-11 SHORT CHIP IC310 6-702-038-11 IC PST3628NR JR498...
  • Page 64 HCD-BX20i/BX50BTi MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R112 1-216-845-11 METAL CHIP 100K 1/10W (BX50BTi) R224 1-216-837-11 METAL CHIP 1/10W R113 1-216-845-11 METAL CHIP 100K 1/10W R225 1-216-837-11 METAL CHIP 1/10W (BX50BTi) R226 1-216-837-11 METAL CHIP 1/10W R114...
  • Page 65 HCD-BX20i/BX50BTi Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R427 1-216-837-11 METAL CHIP 1/10W R428 1-216-821-11 METAL CHIP 1/10W R500 1-216-837-11 METAL CHIP 1/10W R429 1-216-829-11 METAL CHIP 4.7K 1/10W R511 1-216-829-11 METAL CHIP 4.7K 1/10W R430...
  • Page 66 HCD-BX20i/BX50BTi Ver. 1.1 MAIN MOTOR PANEL POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R791 1-216-809-11 METAL CHIP 1/10W R792 1-216-809-11 METAL CHIP 1/10W < COIL > R793 1-216-809-11 METAL CHIP 1/10W L901 1-410-645-31 INDUCTOR 100uH <...
  • Page 67 HCD-BX20i/BX50BTi Ver. 1.1 POWER TOP KEY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C914 1-126-964-11 ELECT 10uF < TRANSFORMER > 0 C921 1-126-767-51 ELECT 1000uF 0 T902 1-443-846-11 TRANSFORMER, POWER 0 C922 1-126-953-61 ELECT 2200uF (BX20i: US, CND/BX50BTi) 0 C923 1-126-953-61...
  • Page 68 HCD-BX20i/BX50BTi Ver. 1.1 TOP KEY VOL SELECT Ref. No. Part No. Description Remark S815 1-771-410-21 SWITCH, TACTILE (VOL +) (BX20i: AUS, SP) S816 1-762-875-21 SWITCH, KEYBOARD (VOL –) (BX20i: US, CND/BX50BTi) S816 1-771-410-21 SWITCH, TACTILE (VOL –) (BX20i: AUS, SP) S817 1-762-875-21 SWITCH, KEYBOARD (M L, TUNE +)
  • Page 69 HCD-BX20i/BX50BTi MEMO...
  • Page 70 Also, clicking the version at the top of the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2008.02 2008.03 Addition of Singapore model (HCD-BX20i) Addition of Canadian model (HCD-BX50BTi) Change of 5VREG, 9VREG, AMP, HP, MAIN, PANEL, POWER and TOP KEY boards (Suffi x-12) (SMR-08031)

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