Sony DR-BT22 Service Manual
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Sony DR-BT22 Service Manual

Wireless stereo headset
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SERVICE MANUAL
Ver. 1.0 2007. 07
General
Communication System
Bluetooth Specification version 2.0
Output
Bluetooth Specification Power Class 2
Maximum communication range
*1
Line of sight approx. 10 m (30 ft)
Frequency band
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Modulation method
FHSS
Compatible Bluetooth Profiles
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HSP (Headset Profile)
HFP (Hands-free Profile)
Supported Codecs
*3
*4
SBC
, MP3
Supported content protection method
SCMS-T
Transmission range (A2DP)
20 - 20,000 Hz (Sampling frequency 44.1 kHz)
Supplied accessory
AC power adaptor (1)
Operating instruction (1)
*1
The actual range will vary depending on factors such as obstacles
between devices, magnetic fields around a microwave oven, static
electricity, reception sensitivity, aerial's performance, operating system,
software application, etc.
*2
Bluetooth standard profiles indicate the purpose of Bluetooth
communication between devices.
*3
Codec: Audio signal compression and conversion format
*4
Subband Codec
Sony Corporation
9-887-791-01
Personal Audio Division
2007G04-1
Published by Sony Techno Create Corporation
© 2007. 07
SPECIFICATIONS
*2
DR-BT22
Australian Model
Headset
Power source
DC 3.7 V: Built-in lithium-ion
rechargeable battery
Mass
Approx. 78 g (2.8 oz)
Rated power consumption
1.5 W
Receiver
Type
Open air, dynamic
Driver unit
30 mm dome type
Reproduction frequency range
14 – 24,000 Hz
Microphone
Type
Omni directional, electret condenser
Effective frequency range
100 – 4,000 Hz
Design and specifications are subject to change without notice.
WIRELESS STEREO HEADSET
US Model
Canadian Model
AEP Model
UK Model
E Model
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Summary of Contents for Sony DR-BT22

  • Page 1 Bluetooth standard profiles indicate the purpose of Bluetooth communication between devices. Codec: Audio signal compression and conversion format Subband Codec WIRELESS STEREO HEADSET Sony Corporation 9-887-791-01 Personal Audio Division 2007G04-1 Published by Sony Techno Create Corporation © 2007. 07...

  • Page 2: Table Of Contents

    DR-BT22 • TABLE OF CONTENTS UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- GENERAL free mark (LF) indicating the solder contains no lead..............2 (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

  • Page 3: Disassembly

    DR-BT22 SECTION 2 DISASSEMBLY Note: This set can be disassemble according to the following sequence. 2-1. DRIVER (SP301) 2-4. DRIVER (SP302) (Page 3) (Page 5) 2-2. HOUSING (R) 2-5. HOUSING (L) (Page 4) (Page 5) 2-3. MAIN BOARD 2-6. CHARGER BOARD...

  • Page 4: Housing (R)

    DR-BT22 2-2. HOUSING (R) 1 screw (1.7) 2 housing (R) 2-3. MAIN BOARD 4 Remove the six solders. white black green blue 2 claw yellow 5 cushion (MIC) 1 light guide 7 MAIN board 6 jog knob...

  • Page 5: Driver (Sp302)

    DR-BT22 2-4. DRIVER (SP302) 3 Remove the two solders. Marking (+ side) black (-) red (+) Note: Plus terminal is marking with felt tip pen. (The position uncertainty) 1 ear pad 4 driver (SP302) 2-5. HOUSING (L) 2 housing (L) 1 screw (1.7)

  • Page 6: Charger Board

    DR-BT22 2-6. CHARGER BOARD 4 Remove the six solders. black white yellow green blue 3 CN201 (2P) 5 CHARGER board 1 two claws...

  • Page 7: Diagrams

    DR-BT22 SECTION 3 DIAGRAMS • IC Block Diagrams THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) — CHARGER Board — for schematic diagram: for printed wiring boards:...

  • Page 8: Block Diagram

    DR-BT22 3-1. BLOCK DIAGRAM ANT101 HELICAL ANTENNA SP302 A_OUT_L_P DRIVER A_OUT_L_N (L-CH) RF_IN/OUT SP301 A_OUT_R_P DRIVER MIC301 A_OUT_R_N 47 A_IN_L_P/MIC_P (R-CH) +2.5V 48 A_IN_L_N/MIC_N D103 (MIC) BLUE LED (BLUE) LED DRIVER Q102 D102 RED LED (RED) IC261 LI-ION BATTERY CHARGER L251 +4.5V...

  • Page 9: Printed Wiring Boards

    DR-BT22 3-2. PRINTED WIRING BOARDS : Uses unleaded solder. J251 DC IN 3V TP252 C258 C260 C261 TP253 C253 TP265 C255 TP264 TP251 TP260 C252 Q251 SP302 TP261 DRIVER TP209 (L-CH) TP208 FB202 FB203 CN201 R127 B301 C206 LITHIUM ION...

  • Page 10: Schematic Diagram

    DR-BT22 3-3. SCHEMATIC DIAGRAM • Refer to page 7 for IC Block Diagrams. TP203 R208 TP207 Q201 L202 L201 L203 TP206 TP216 C101 TP307 TP305 FB101 R207 SP301 C104 R102 R101 C103 R201 R205 TP308 TP306 C102 FB102 C137 S101...

  • Page 11: Exploded Views

    DR-BT22 SECTION 4 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so number in the exploded views are not supplied. they may have some difference from the • Items marked “*” are not stocked since original one.

  • Page 12: Housing (L) Section

    DR-BT22 4-2. HOUSING (L) SECTION B301 SP302 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2187-558-1 HEAD BAND ASSY 3-209-791-01 HOUSING (L) 4-994-324-01 PAD, EAR B301 X-2184-559-1 LITHIUM ION BATTERY SUB ASSY 3-252-825-01 SCREW (1.7) (BP-HP300A) (DC 3.7V/320mAh)

  • Page 13: Electrical Parts List

    DR-BT22 SECTION 5 CHARGER MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • SEMICONDUCTORS The components identified by mark 0 or dotted line with mark the parts list may be different from the In each case, u : µ, for example: 0 are critical for safety.
  • Page 14 DR-BT22 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C206 1-125-777-11 CERAMIC CHIP 0.1uF R108 1-218-973-11 RES-CHIP 1/16W C207 1-100-539-11 TANTAL. CHIP 47uF 6.3V R109 1-218-981-11 RES-CHIP 220K 1/16W C208 1-125-777-11 CERAMIC CHIP 0.1uF R110...
  • Page 15 DR-BT22 Ref. No. Part No. Description Remark MISCELLANEOUS *************** B301 X-2184-559-1 LITHIUM ION BATTERY SUB ASSY (BP-HP300A) (DC 3.7V/320mAh) MIC301 1-542-707-11 MICROPHONE, ELECTRET CONDENSER (MIC) SP301 1-542-653-21 DRIVER (030F041Q) (R-CH) SP302 1-542-653-21 DRIVER (030F041Q) (L-CH) ************************************************************* ACCESSORIES ************ 1-478-846-12 ADAPTOR, AC (AC-ES3010K2) (US,CND)
  • Page 16 DR-BT22 REVISION HISTORY Clicking the version allows you to jump to the revised page. 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 2007. 07...

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