Sony DR-BT21iK User manual

Published by Sony Techno Create Corporation
SERVICE MANUAL
Sony Corporation
DR-BT21iK/BT22iK
WIRELESS STEREO HEADSET
9-887-865-01
2007I04-1
© 2007.09
US Model
AEP Model
UK Model
Ver. 1.0 2007.09
Personal Audio Division
• DR-BT21iK/BT22iK are composed of the following models.
As service manuals are issued for each component model, please refer to them.
COMPONENT MODEL NAME
DR-BT21iK DR-BT22iK
BLUETOOTH HEADSET DR-BT21G DR-BT22
BLUETOOTH TRANSMITTER TMR-BT8iP TMR-BT8iP
SPECIFICATIONS PARTS LIST
Ref. No. Part No. Description Remark
01-478-846-12 ADAPTOR,AC (AC-ES3010K2) (US)
01-478-848-13 ADAPTOR,AC (AC-ES3010K2) (AEP)
01-478-849-12 ADAPTOR,AC (AC-ES3010K2) (UK)
3-280-122-11 MANUAL, INSTRUCTION (ENGLISH)
(BT22iK:AEP,UK)
3-280-122-21 MANUAL, INSTRUCTION (FRENCH,SPANISH)
(BT22iK:AEP)
3-280-122-31 MANUAL, INSTRUCTION (GERMAN,DUTCH)
(BT22iK:AEP)
3-280-122-41 MANUAL, INSTRUCTION (ITALIAN,
PORTUGUESE) (BT22iK:AEP)
3-280-122-51 MANUAL, INSTRUCTION (ENGLISH,SPANISH)
(BT22iK:US)
3-280-325-11 MANUAL, INSTRUCTION (ENGLISH)
(BT21iK:AEP,UK)
3-280-325-21 MANUAL, INSTRUCTION (FRENCH,SPANISH)
(BT21iK:AEP)
3-280-325-31 MANUAL, INSTRUCTION (GERMAN,DUTCH)
(BT21iK:AEP)
3-280-325-41 MANUAL, INSTRUCTION (ITALIAN,
PORTUGUESE) (BT21iK:AEP)
3-280-325-51 MANUAL, INSTRUCTION (ENGLISH,SPANISH)
(BT21iK:US)
The components identified by mark 0
or dotted line with mark 0are critical for
safety.
Replace only with part number specified.
General
Output
cation Power Class 2
Maximum communication range
Frequency band
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Modulation method
FHSS
Transmission range (A2DP)
20 - 20,000 Hz (Sampling frequency
44.1 kHz)
Supplied accessories
AC power adaptor (1)
Operaing Instructions (1)
Warranty Card (1)
*
factors such as obstacles between devices,
static electricity, reception sensitivity,
aerial’s performance, operating system,
*e actual range will vary depending on
magnetic elds around a microwave oven,
soware application, etc.
Design and specications are subject
to change without notice.

DR-BT21iK/BT22iK
REVISION HISTORY
Checking 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
1.0 2007.09 New

DR-BT21G
US Model
Canadian Model
UK Model
E Model
Australian Model
Chinese Model
SERVICE MANUAL
WIRELESS STEREO HEADSET
SPECIFICATIONS
Ver. 1.2 2007.07
General
Communication System
Bluetooth Specification version 2.0
Output
Bluetooth Specification Power Class 2
Maximum communication range
Line of sight approx. 10 m (30 ft) *1
Frequency band
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Modulation method
FHSS
Compatible Bluetooth Profiles*2
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HSP (Headset Profile)
HFP (Hands-free Profile)
Supported Codecs*3
SBC*4, MP3
Transmission range (A2DP)
20 - 20,000 Hz (Sampling frequency 44.1KHz)
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
Headset
Power source
DC 3.7 V: Built-in lithium-ion
rechargeable battery
Mass
Approx. 63 g (2.3 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.
Sony Corporation
Personal Audio Division
Published by SonyTechno Create Corporation
9-887-599-03
2007G02-1
© 2007.07

DR-BT21G
2
TABLE OF CONTENTS
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
1. GENERAL........................................................................... 2
2. DISASSEMBLY
2-1. Disassembly Flow ························································ 3
2-2. Driver (R-CH) ······························································ 3
2-3. Housing Upper (R) Sub Assy······································· 4
2-4. Main Board ·································································· 4
2-5. Driver (L-CH) ······························································ 5
2-6. Housing Upper (L) Sub Assy ······································· 5
2-7. Charger Board ······························································ 6
3. DIAGRAMS
3-1. Block Diagram ····························································· 8
3-2. Printed Wiring Boards·················································· 9
3-3. Schematic Diagram ···················································· 10
4. EXPLODEDVIEWS
4-1. Housing (R) Section ···················································· 11
4-2. Housing (L) Section ···················································· 12
5. ELECTRICAL PARTS LIST........................................ 13
•IC101 (CXN1450-2ABL) on MAIN board cannot be
replaced individually.
Replace it with “MAIN BOARD, COMPLETE”.
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.
•Unleaded solder melts at a temperature about 40°C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to
be applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set
to about 350°C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder
may also be added to ordinary solder.
SECTION 1
GENERAL This section is extracted
from instruction manual.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Indicator (blue)
Indicates the communication
status of the unit.
Indicator (red)
Indicates the power status of
the unit.
Multi function button
Controls various call functions.
Press the button on the tactile
dots.
Jog switch
Controls various functions
when listening to music.
RESET button
Push this button when this unit
does not operate properly.
Pairing information is not
deleted by this operation.
VOL (volume) +*⁄–
buttons
Neckband
(right) indication
Left unit
(left) indication
Ear pad
Right unit
POWER button
Microphone
DC IN 3 V jack
* This button has a tactile dot.
1
2
3
4
5
6
7
8
9
q;
qa
qs
qd
qf
qg
Location and Function of Parts

3
DR-BT21G
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
2-2. DRIVER (R-CH)
2-2. DRIVER (R-CH)
(Page 3)
2-3. HOUSING UPPER (R) SUB ASSY
(Page 4)
2-4. MAIN BOARD
(Page 4)
2-5. DRIVER (L-CH)
(Page 5)
2-6. HOUSING UPPER (L) SUB ASSY
(Page 5)
2-7. CHARGER BOARD
(Page 6)
SET
1 ear pad
4 driver sub assy
3 Remove the solder at 2 places.
2
RED
Marking (+ side)
Note : Plus terminal is marking
with felt tip pen.
(The position uncertainty)
BLK
Note: Follow the disassembly procedure in the numerical order given.

4
DR-BT21G
2-3. HOUSING UPPER (R) SUB ASSY
2-4. MAIN BOARD
1 screw
2 housing upper (R) sub ass
y
3 button (VOL)
1 two claws
4 MAIN board
3 Remove the solder at 8 places.
2
RED/NAT
GRN/NAT
WHT
GRN
RED
RED
BLK
BLK

5
DR-BT21G
2-5. DRIVER (L-CH)
2-6. HOUSING UPPER (L) SUB ASSY
1 ear pad
4 driver sub assy
3 Remove the solder at 2 places.
2
RED
BLACK
Marking (+ side)
Note : Plus terminal is marking
with felt tip pen.
(The position uncertainty)
1 scre
w
2 housing upper (L) sub assy

6
DR-BT21G
2-7. CHARGER BOARD
1 cla
w
5 CHARGER board
4 Remove the solder at 6 places.
2
3
connector
(CN201)
BLK
WHT
RED/NAT
GRN RED GRN/NAT

77
DR-BT21G
DR-BT21G
SECTION 3
DIAGRAMS
For schematic diagrams.
Note:
•All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4 W or less unless otherwise
specified.
•%: indicates tolerance.
•C: panel designation.
•A: B+ Line.
•Power voltage are dc 3.7 V and fed with regulated dc
power supply from battery terminal.
•Voltages are dc with respect to ground under tolerances.
no mark : STANDBY
(): AC ADAPTOR IN
•Voltagesaretaken with aVOM(Input impedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path.
F: AUDIO
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
Caution:
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
Pattern face side: Partsonthepattern faceside seenfrom
(Side B) the pattern face are indicated.
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• IC101 (CXN1450-2ABL) on MAIN board cannot be replaced
individually.
Replace it with “MAIN BOARD, COMPLETE”.
•The voltage of IC101 cannot be measured.
•MAIN board is four-layer pritnted board.However, the patterns of
layer 2 and 3 have not been included in this diagrams.
OUT
BAT
VCC
ISET
IN
VCC VCC
VCC
STAT2
VSS
9
10
8
7
6
2
3
5
1
4
I (DETECT)
ENABLE
V
(ISET)
V I(BAT)
V I(BAT)
V I(BAT)
V I(BAT)
V (RCH)
V (PRECHG)
V (TAPER)
V (TERM)
VSET
V I(BAT)
V I(SET)
V I(SET)
V (SLP)
V O(REG)
V O(REG)
V O(REG)
VSET
CHG ENABLE
CHG ENABLE
CHG ENABLE I
(FAULT)
ENABLE
I
(DETECT) ENABLE
I
(FAULT) ENABLE
DEGLITCH
DEGLITCH
DEGLITCH
DEGLITCH
RECHARGE
PRECHARGE
TAPER
TERM
STAT1
REFERENCE
AND BIAS
THERMAL
SHUTDOWN
CHARGE
CONTROL,
TIMER,
AND
DISPLAY
LOGIC
PG
PG
TS
IC261 BQ24010ADRCR
• IC Block Diagram
- CHARGER Board -
IC251 XC9103D093MR
1FB
VDD VDD
VDD
2
CE 3
EXT
5
4 GND
–
+
–
+
VREF WITH
SOFT START,
CE
PWM/PFM
CONTROLER
RAMP WAVE
GENERATOR,
OSC
BAFFER,
DRIVER
PWM
COMPARATOR
ERROR AMP
CURRENT
RIPPLE DETECT
AND FB
PHASE
COMPENSATION

DR-BT21G
88
DR-BT21G
3-1. BLOCK DIAGRAM
D103
(BLUE)
41
39
38
51
5
4
1
+1.8V DC-DC CONVERTER
RF_IN/OUT
MIC301
(MIC)
ANT101
ANTENNA
SPEAKER
(L-CH)
47 A_IN_L_P/MIC_P
PI0_09
RESET-1 4 1
SP302
48 A_IN_L_N/MIC_N
S105
MULTI FUNCTION
30
29
D102
(RED)
37
52
A_OUT_L_P
A_OUT_L_N
3SPEAKER
(R-CH)
SP301
2
A_OUT_R_P
A_OUT_R_N
34
PIO_03
28
PIO_07
19
RESET-2 18
S107 VOL -
S104
VOL +
+1.8V
S102
(JOG SW)
P1O_11
PIO_11
36
PIO_08
+BATT
(+3.7V)
RECHAGEABLE
BATTERY
(LI-ION)
3.7V
RECEIVER/TRANSMITTER
MIC AMP,AF AMP,
BLUETOOTH CONTROL
PI0_06
PI0_05
PI0_04
PI0_01
PI0_02
PI0_00
35
31
33
32
POWER
+B SWITCH
Q201,202
RESET
VDD
2
EXT
DC-DC CONVERTOR
5
J251
DC IN 3V
3
CE
S101
D201
IC151
+1.8V
+1.5V
(MIC)
IC201
IC202
5
3
1
+1.5V REG.
FB
1
Q251
L251
L201
+4.5V
IC251
IC261
IC101
SWICHING
STAT1
BATT
91
2
7
3
OUT
LI-ION BATTERY
CHARGER
10
PG
IN
OUT
LX
CE
VOUT
VIN
VIN
VOUT VIN
VCC
8
TS
RESET
S108
+
-
+1.5V
(MIC)
LED DRIVER
Q102
.
>
Bx
: AUDIO
• Signal Path

99
DR-BT21G
DR-BT21G
3-2. PRINTED WIRING BOARDS : Uses unleaded solder.
Ref. No. Location
D102 E-1
D103 E-2
D201 C-5
D250 A-3
IC101 D-2
IC151 C-2
IC201 C-5
IC202 E-3
IC251 A-3
IC261 A-6
Q102 E-6
Q201 D-5
Q202 C-4
Q251 A-5
• Semiconductor
Location
12
B301
RECHARGEABLE
BATTERY
(LI-ION)
3.7V
1
1
3
5
4
2
13
54
1
5
10
6
1
2
1
5
10
15
16
2025
27
30
35
40
42 45 50 52
4
3
3421
1
3
5
4
1
3
5
4
E
GS
D
MIC
EBB
CC
R133
R132
R135
R113
C132
R129
C138
ANT101
IC202
R128
R136
C139
VOL
-
S107
VOL
+
S105
FB105
R145
C137
FB104
FB103
FB102
FB101
S104
(MULTI FUNCTION)
C121
R137
C120
R126
C118
C119
D103
R130
C101
C106
C104
R125
R114
C116
IC101
R134
IC151
C151
C211
R151
C105
R103
C209
R101
R102
C103
R131
R111
R112
R139
C135
R141
R142
R143
S102
(JOG SW)
D102
C102
R144
L102
C212
C210
R205
R148
R117
R146
R147
C131
C152
FB106
C258
J251
DC IN 3V
L251
C254
IC251
C252
CN201
D250
TP261
TP260
TP264
TP209
TP265
TP253
TP208
TP252
TP251
C260
C253
C264
C263
R263
R261
C200
R262
C262
C261
Q251
R252 R253
C256
C255
C259
IC261
TP266
TP267
TP254
C213
R107
L201
S108
RESET
C201
C207
IC201
C204
R202
R201
Q202
Q201
C205
C202
Q102
C203
L103
C122
R204
R203
D201
R106
C109
R104
R105
C107
C108
R121
R120
R153
JC153
R127
R206
JC118
C123
R108
C113
C112
C111
C110
R109
R110
L203
C125
C208
L202
TP308
TP307
TP211
TP263
TP262
TP116
TP117
TP311
TP312
TP207
TP105
TP106
TP107
TP108
TP206
TP203
TP113
MIC301
TP114
TP103
TP204
TP104
TP102
TP101
TP115
TP255
TP205
TP210
TP257
TP256
11
(11)
1-872-385-
11
(11)
1-872-384- 11
(11)
1-872-384-
11
(11)
1-872-385-
CHARGER BOARD (SIDE A)
MAIN BOARD (SIDE A)MAIN BOARD (SIDE B)
CHARGER BOARD (SIDE B)
SP302
(RED)
(BLK)
L-CH
SP301
(RED)
(BLK)
R-CH
S101
POWER
(BLK)
(WHT)
(GRN)
(RED/NAT)
(RED)
(GRN/NAT)
(BLK)
(WHT)
(GRN)
(RED/NAT)
(RED)
(GRN/NAT)
FF
REW
23 4 5 6 7
A
1
B
C
D
E

DR-BT21G
1010
DR-BT21G
3-3. SCHEMATIC DIAGRAM •See page 7 for IC Block Diagrams.
3.8(0.3)
3.8(0.3)
1.8(0)
1.8(0)
0.6(0)
0(3.9)
3.8 3.8(0.2)
3.9
1.6(0) 1.6
0
0
1.8(0)
1.8(0)
1.5(0)
3.8(0) 0
0
0
(4.5)
(4.5)
0
1.5
(0)
0
0
(2.5)
0(2.3)
3.8(3.9)
3.8(3.9)
0
(3.3) 0
(4.5) 0
(0.9)
0
(1.4)
0(1.4)
0(3.3) 0(4.5)
TP101
TP102
TP103
TP104
TP105
TP107
TP108
R125
R126
SP301
SP302
C101
C106
C107
C108
C109
C110
C111
C112
C113
ANT101
TP116
TP117
TP113
TP114
CN201
R108
TP251
TP252
R202
TP207
TP106
IC101
IC201
C116
C120
L103
TP255
TP256
TP257
TP258
IC261
C138
TP115
R201
C211
C210
C104
C121
C122
R127
C105
R151
TP254
TP205
TP204
R144
R143
R142
R141
D102
IC151
R117 R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R139
R153
R103
JC153
R145
R146
R147
R148
IC251
IC202
S108
S105
S107
JC118
C102
C139
C137
L202
Q202
TP206
Q102
C125
L203
S101
S104
L251
22uH C123
C208
L102
R120
R121
R116
R112
R113
R111
Q201
TP203
R205
C209
C202
0.1
C201
R206
D201
R204
C203
R203
C204 C205
L201
10uH
C207 C213
C212
C151
C152
TP253
B301
J251
Q251
S
C200
C252
C253 C258
D250
R253
R252
C256 C259
22
C254
C255
C264
0.1
C261
R261
R262
R263
C260
0.1
C262 C263
R104
R105
R106
R107
R109
R110
FB101
FB102
FB103
FB104
FB105
FB106
MIC301
C119
C118
C132
C131
C135
C103 R102 R101
D103
R114
S102
SPI_CSB
SPI_MISO
SPI_CLK
SPI_MOSI
URAT_TX
URAT_CTS
URAT_RTS
2.2k
0
0.01
0.1
0.01
0.01
0.01
0.01
0.01
0.01
0.01
MIC
GND
2P
47k
DC 3.0V
GND
47k
GND
URAT_RX
CXN1450
XC9226A186MR
1p
15p
15nH
BQ24010ADRCR
100p
RESET
100k
0.1
1
0.1
1
0.001
2.2k
0.01
10k
GND
POWER_HOLD
CON - (BLK)
0
0
0
0
CL-191S-PP193
XC6109N16ANR
4.7k 1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
0
4.7k
4.7k
4.7k
4.7k
XC9103D093MR
XC6219B202MR
0
100p
100p
100p
15nH
2SC4617TL-Q
1.8V
RN1704-TE85R
100p
10nH
7E04NA 0.01
0.1
6.8nH
150
150
4.7k
4.7k
4.7k
4.7k
RTF015P02TL
CON + (RED)
1k
0.01
10V
10
47k
RB715W
470k
0.01
100k
0.1 4.7
10V
47
6.3V 47
6.3V
1
0.01
0.01
DC 4.5V
QS5U17TR
10V
22u
100
6.3V
0.1 100p
CRS08-TE85R
56k
0.5%
220k
0.5%
68p
10V
47
10V
0.1 0.47
C
10k
10k
5.6k
0.5%
10.001
220k
220k
220k
220k
220k
220k
0mH
0mH
0mH
0mH
0mH
0mH
0.047
0.047
100p
100p
100p
0.1 150k
0.5%
220k
0.5%
CL-191S-PB168
4.7k
BATTERY
CHARGE LED
HP L_N
HP L_P
BATTERY
CHARGE ON/OFF
PIO_10
PIO_08
HP R_N
HP R_P
1.5V
1.8V
MAIN BOARD
POWER
POWER ON/OFF
POWER SWITCH
IC201
I.8V DC-DC
CONVERTOR
IC151
RESET
IC202
1.5V REG
RESET
IC101
RECEIVER/TRANSMITTER,
MIC AMP, AF AMP,
BLUETOOTH CONTROL
BLK
RED
R-CH
MIC
(RED) (BLUE)
LED DRIVER
VOL+
VOL-
MULTI
FUNCTION
REW FF
(JOG SW)
GRN/NAT
RED/NAT
RED
GRN
BLK
RED
L-CH
LI-ION BATTERY CHARGER
IC251
4.5V REG
4.5V DC/DC
CONVERTOR
CHARGER BOARD
IC B/D
IC261
IC B/D
WHT
BLK
RECHARGEABLE
BATTERY
(LI-ION)
(3.7V)
DC IN 3V

11
DR-BT21G
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
SECTION 4
EXPLODEDVIEWS
NOTE:
•-XX, -X mean standardized parts, so they may
have some differences from the original one.
•Color indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ••• (RED)
↑↑
Parts color Cabinet's color
•Items marked “*” are not stocked since they
are seldom required for routine service. Some
delayshould be anticipated whenordering these
items.
•Themechanical parts withnoreference number
in the exploded views are not supplied.
1X-2178-265-1 HOUSING UPPER (R) SUB ASSY (BLACK)
1X-2178-267-1 HOUSING UPPER (R) SUB ASSY (WHITE)
22-898-743-01 BUTTON (RESET) (BLACK)
22-898-743-11 BUTTON (RESET) (WHITE)
32-898-739-01 BUTTON (MF) (BLACK)
32-898-739-11 BUTTON (MF) (WHITE)
42-898-745-01 LIGHT GUIDE
52-898-742-01 RING
62-898-741-01 BUTTON (POWER) (BLACK)
62-898-741-11 BUTTON (POWER) (WHITE)
72-898-746-01 CUSHION (MIC)
8A-1231-959-A MAIN BOARD, COMPLETE (BLACK)
8A-1237-035-A MAIN BOARD, COMPLETE (WHITE)
92-898-738-01 KNOB (JOG) (BLACK)
92-898-738-11 KNOB (JOG) (WHITE)
10 2-898-740-01 BUTTON (VOL) (BLACK)
10 2-898-740-11 BUTTON (VOL) (WHITE)
11 X-2176-453-1 PLATE, FRONT (R) ASSY (BLACK)
11 X-2176-702-1 PLATE, FRONT (R) ASSY (WHITE)
12 3-252-825-01 SCREW (1.7)
13 4-994-324-01 PAD, EAR
SP301 X-2178-262-1 DRIVER (030F041Q) SUB ASSY
4-1. HOUSING (R) SECTION
not supplied
SP301
1
2
3
4
5
6
7
8
9
10
11
12
12
13

12
DR-BT21G
4-2. HOUSING (L) SECTION
51 4-994-324-01 PAD, EAR
52 3-252-825-01 SCREW (1.7)
53 X-2176-454-1 PLATE, FRONT (L) ASSY (BLACK)
53 X-2176-703-1 PLATE, FRONT (L) ASSY (WHITE)
54 X-2178-263-1 BATTERY, LITHIUM (ION) STORAGE SUB ASSY
55 A-1231-898-A CHARGER BOARD, COMPLETE
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
not supplied
not supplied
SP302
51
52
52
53
54
55
56
57
58
58
59
56 X-2178-264-1 HOUSING UPPER (L) SUB ASSY (BLACK)
56 X-2178-266-1 HOUSING UPPER (L) SUB ASSY (WHITE)
57 A-1229-411-A NECKBAND ASSY
58 3-252-824-11 SCREW (1.4)
59 7-626-305-31 SPRING-PIN 1X8
SP302 X-2178-262-1 DRIVER (030F041Q) SUB ASSY

13
DR-BT21G
SECTION 5
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts
specifiedin the diagramsorthe components
used on the set.
•-XX, -X mean standardized parts, so they
may have some difference from the original
one.
•Itemsmarked “*” arenot stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•CAPACITORS:
uF: µF
•RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
•COILS
uH: µH
•SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
•Abbreviation
CND:Canadian model CH :Chinese model
AUS:Australian model TW:Taiwan model
KR: Korean model
A-1231-898-A CHARGER BOARD, COMPLETE
*************************
< CAPACITOR >
C200 1-165-897-11 TANTAL. CHIP 22uF 20% 10V
C252 1-128-964-91 TANTAL. CHIP 100uF 20% 6.3V
C253 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C254 1-137-934-91 TANTAL. CHIP 47uF 20% 10V
C255 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C256 1-164-870-11 CERAMIC CHIP 68PF 5% 50V
C258 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C259 1-165-897-11 TANTAL. CHIP 22uF 20% 10V
C260 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C261 1-112-324-91 CERAMIC CHIP 0.47uF 20% 10V
C262 1-100-506-91 CERAMIC CHIP 1uF 20% 6.3V
C263 1-164-937-11 CERAMIC CHIP 0.001uF 10% 50V
C264 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
< CONNECTOR >
CN201 1-770-619-11 PIN, CONNECTOR 2P
< DIODE >
D250 6-500-453-01 DIODE CRS08-TE85R
< IC >
IC251 6-709-933-01 IC XC9103D093MR
IC261 6-704-354-02 IC BQ24010ADRCR
< JACK >
J251 1-820-573-11 JACK, DC (DC IN 3V)
< COIL >
L251 1-457-422-11 INDUCTOR 22uH
< TRANSISTOR >
Q251 6-551-556-01 TRANSISTOR QS5U17TR
< RESISTOR >
R252 1-208-943-11 METAL CHIP 220K 0.5% 1/16W
R253 1-208-929-81 METAL CHIP 56K 0.5% 1/16W
R261 1-218-965-11 RES-CHIP 10K 5% 1/16W
R262 1-218-965-11 RES-CHIP 10K 5% 1/16W
R263 1-208-905-11 METAL CHIP 5.6K 0.5% 1/16W
************************************************************
A-1231-959-A MAIN BOARD, COMPLETE (BLACK)
A-1237-035-A MAIN BOARD, COMPLETE (WHITE)
*********************
2-898-738-01 KNOB (JOG) (BLACK)
2-898-738-11 KNOB (JOG) (WHITE)
< ANTENNA >
ANT101 1-754-380-11 HELICAL ANTENNA
< CAPACITOR >
C101 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C102 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C103 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C104 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C105 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C106 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C107 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C108 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C109 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C110 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C111 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C112 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C113 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C116 1-164-840-11 CERAMIC CHIP 1PF 0.25PF 50V
C118 1-119-923-11 CERAMIC CHIP 0.047uF 10% 10V
C119 1-119-923-11 CERAMIC CHIP 0.047uF 10% 10V
C120 1-164-854-11 CERAMIC CHIP 15PF 5% 50V
C121 1-100-506-91 CERAMIC CHIP 1uF 20% 6.3V
C122 1-164-937-11 CERAMIC CHIP 0.001uF 10% 50V
C123 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C125 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C131 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C132 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C135 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C137 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C138 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C139 1-164-874-11 CERAMIC CHIP 100PF 5% 50V
C151 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C152 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C201 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
When indicating parts by reference
number, please include the board
name.
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0sont critiques pour la
sécurité.
Ne les remplacer que par une
piéce portant le numéro spécifié.
MAIN
CHARGER Ver. 1.1

14
DR-BT21G
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
R107 1-218-981-11 RES-CHIP 220K 5% 1/16W
R108 1-218-973-11 RES-CHIP 47K 5% 1/16W
R109 1-218-981-11 RES-CHIP 220K 5% 1/16W
R110 1-218-981-11 RES-CHIP 220K 5% 1/16W
R111 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R112 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R113 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R114 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R116 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R117 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R120 1-218-943-11 RES-CHIP 150 5% 1/16W
R121 1-218-943-11 RES-CHIP 150 5% 1/16W
R125 1-218-957-11 RES-CHIP 2.2K 5% 1/16W
R126 1-218-990-11 SHORT CHIP 0
R127 1-218-957-11 RES-CHIP 2.2K 5% 1/16W
R128 1-218-953-11 RES-CHIP 1K 5% 1/16W
R129 1-218-953-11 RES-CHIP 1K 5% 1/16W
R130 1-218-953-11 RES-CHIP 1K 5% 1/16W
R131 1-218-953-11 RES-CHIP 1K 5% 1/16W
R132 1-218-953-11 RES-CHIP 1K 5% 1/16W
R133 1-218-953-11 RES-CHIP 1K 5% 1/16W
R134 1-218-953-11 RES-CHIP 1K 5% 1/16W
R135 1-218-953-11 RES-CHIP 1K 5% 1/16W
R136 1-218-953-11 RES-CHIP 1K 5% 1/16W
R137 1-218-953-11 RES-CHIP 1K 5% 1/16W
R139 1-218-953-11 RES-CHIP 1K 5% 1/16W
R141 1-218-990-11 SHORT CHIP 0
R142 1-218-990-11 SHORT CHIP 0
R143 1-218-990-11 SHORT CHIP 0
R144 1-218-990-11 SHORT CHIP 0
R145 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R146 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R147 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R148 1-218-961-11 RES-CHIP 4.7K 5% 1/16W
R151 1-218-965-11 RES-CHIP 10K 5% 1/16W
R153 1-218-953-11 RES-CHIP 1K 5% 1/16W
R201 1-218-977-11 RES-CHIP 100K 5% 1/16W
R202 1-218-973-11 RES-CHIP 47K 5% 1/16W
R203 1-218-977-11 RES-CHIP 100K 5% 1/16W
R204 1-218-985-11 RES-CHIP 470K 5% 1/16W
R205 1-218-953-11 RES-CHIP 1K 5% 1/16W
R206 1-218-973-11 RES-CHIP 47K 5% 1/16W
< SWITCH >
S101 1-771-844-21 SWITCH, TACTILE (SMD) (POWER)
S102 1-786-923-11 LEVER (SLIDE TYPE) SWITCH (JOG SW)
S104 1-771-844-21 SWITCH, TACTILE (SMD (MULTI FUNCTION))
S105 1-786-722-21 SWITCH, TACTILE (VOL +)
S107 1-786-722-21 SWITCH, TACTILE (VOL -)
S108 1-786-722-21 SWITCH, TACTILE (RESET)
************************************************************
MISCELLANEOUS
**************
54 X-2178-263-1 BATTERY, LITHIUM (ION) STORAGE SUB ASSY
SP301 X-2178-262-1 DRIVER (030F041Q) SUB ASSY
SP302 X-2178-262-1 DRIVER (030F041Q) SUB ASSY
************************************************************
C202 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C203 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C204 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C205 1-135-210-11 TANTAL. CHIP 4.7uF 20% 10V
C207 1-100-539-91 TANTAL. CHIP 47uF 20% 6.3V
C208 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C209 1-164-943-81 CERAMIC CHIP 0.01uF 10% 16V
C210 1-100-506-91 CERAMIC CHIP 1uF 20% 6.3V
C211 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C212 1-100-506-91 CERAMIC CHIP 1uF 20% 6.3V
C213 1-100-539-91 TANTAL. CHIP 47uF 20% 6.3V
< DIODE >
D102 6-501-537-01 DIODE CL-191S-PP193-D-T
D103 6-501-538-01 DIODE CL-191S-PB168-D-T
D201 8-719-082-45 DIODE RB715W-TL
< FERRITE BEAD >
FB101 1-469-084-21 FERRITE 0mH
FB102 1-469-084-21 FERRITE 0mH
FB103 1-469-084-21 FERRITE 0mH
FB104 1-469-084-21 FERRITE 0mH
FB105 1-469-084-21 FERRITE 0mH
FB106 1-469-084-21 FERRITE 0mH
< IC >
IC101 (Not supplied) IC CXN1450-2ABL
IC151 6-709-935-01 IC XC6109N16ANR
IC201 6-709-718-01 IC XC9226A186MR
IC202 6-708-084-01 IC XC6219B202MR
< JUMPER RESISTOR >
JC118 1-218-990-11 SHORT CHIP 0
JC153 1-218-990-11 SHORT CHIP 0
< COIL >
L102 1-481-261-11 INDUCTOR 6.8nH
L103 1-414-842-21 INDUCTOR 15nH
L201 1-481-168-11 INDUCTOR 10uH
L202 1-414-842-21 INDUCTOR 15nH
L203 1-414-840-21 INDUCTOR 10nH
< MICROPHONE >
MIC301 1-542-707-11 ELECTRET CONDENSER MICROPHONE
< TRANSISTOR >
Q102 6-550-974-01 TRANSISTOR RN1704 (TE85R.F)
Q201 6-551-067-01 TRANSISTOR RTF015P02TL
Q202 8-729-927-99 TRANSISTOR 2SC4617R
< RESISTOR >
R101 1-208-943-11 METAL CHIP 220K 0.5% 1/16W
R102 1-208-939-11 METAL CHIP 150K 0.5% 1/16W
R103 1-218-953-11 RES-CHIP 1K 5% 1/16W
R104 1-218-981-11 RES-CHIP 220K 5% 1/16W
R105 1-218-981-11 RES-CHIP 220K 5% 1/16W
R106 1-218-981-11 RES-CHIP 220K 5% 1/16W
MAIN
• IC101 (CXN1450-2ABL) on MAIN board cannot be replaced
individually.
Replace it with “MAIN BOARD, COMPLETE”.

15
DR-BT21G
Ref. No. Part No. Description Remarks
ACCESSORIES
************
01-478-846-12 ADAPTOR, AC (AC-ES3010K2) (US, CND, TW)
01-478-847-11 ADAPTOR, AC (AC-ES3010K2) (KR)
01-478-848-13 ADAPTOR, AC (AC-ES3010K2) (E)
01-478-849-12 ADAPTOR, AC (AC-ES3010K2) (UK)
01-478-850-11 ADAPTOR, AC (AC-ES3010K2) (AUS)
01-478-845-11 ADAPTOR, AC (AC-ES3010K2) (CH)
3-095-524-11 MANUAL, INSTRUCTION (ENGLISH) (UK)
3-095-524-51 MANUAL, INSTRUCTION (ENGLISH) (US)
3-095-524-61 MANUAL, INSTRUCTION (ENGLISH, FRENCH)
(CND)
3-095-524-71 MANUAL, INSTRUCTION (ENGLISH)
(E, AUS, KR, CH, TW)
3-095-524-81 MANUAL, INSTRUCTION (KOREAN) (KR)
3-095-524-91 MANUAL, INSTRUCTION
(TRADITIONAL CHINESE) (TW)
3-106-351-11 MANUAL, INSTRUCTION
(SIMPLIFIED CHINESE) (CH)
Ver. 1.2
3-106-351-21 MANUAL, INSTRUCTION (UKRAINE) (E)

DR-BT21G
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
1.0 2007.02 New
1.1 2007.06 Addition of Chinese and Taiwan model.
1.2 2007.07 Addition of manual instruction (UKRAINE) for E model. (SPM-07070)

Published by Sony Techno Create Corporation
SERVICE MANUAL
Sony Corporation
• The following parts are an available for service parts of this model.
PARTS LIST
Ref. No. Part No. Description Remark
TMR-BT8iP
STEREO TRANSMITTER
9-887-864-01
2007I04-1
© 2007.09
US Model
AEP Model
UK Model
Ver. 1.0 2007.09
Personal Audio Division
3-279-360-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH,
GERMAN,SPANISH) (AEP,UK)
3-279-360-21 MANUAL, INSTRUCTION (DUTCH,ITALIAN,
PORTUGUESE) (AEP,UK)
3-279-360-31 MANUAL, INSTRUCTION (ENGLISH,SPANISH,
FRENCH) (US)

TMR-BT8iP
REVISION HISTORY
Checking 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
1.0 2007.09 New