Block Diagram - Sony DR-BT21G Service Manual

DR-BT21G

3-1. BLOCK DIAGRAM

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