Block Diagrams - Sony DR-BT1 Service Manual

3-1. BLOCK DIAGRAM
HEAD SET
ANT2
ANTENNA
ANT
10
DELAY SWITCH
1 PIO11
Q15
MIC1
6 MIC_N
MIC
SP1 3 SPKR_P
SPEAKER
4 SPKR_N
D10
29 PIO1
(BLUE) LED DRIVER
D11
Q16
30 PIO0
(GREEN)
ANT1
ANTENNA
ANT
10
5 MIC_P
PHONE MIC_P
P1
3 SPKR_P
(PHONE PLUG)
PHONE SPKR_P
28 PIO2
D5
25
PIO10
LED DRIVER
(BLUE)
D6
Q8
1 PIO11
(GREEN)
DR-BT1/BT1K
PIO4 23
S4
PIO5 24 S3
S2
PIO3 26
P1O9 2
MOD2
D9
RECEIVER/TRANSMITTER,
MIC AMP,AF AMP,
VDD_IO 15
BLUETOOTH CONTROL
VREG_IN 14
Q14
INV.
RESETB 22
+B SWITCH
VDD_IO 15
14
VREG_IN
PIO9 2
MOD1
S5
RECEIVER,TRANSMITTER
POWER ON
MIC AMP,AF AMP, VDD_IO
11
S1
BLUETOOTH CONTROL
Pairing/
Power off
D7
BUFFER
PIO1 29
Q17,18
D4
VOL -
VOL +
MULITI FUNCTION
4
CN2
1
B2
+2.8V REG.
6
3
IC7 RECHAGEABLE
BATTERY (LI-ION)
3.7V
CHARGE
4
TERMINAL
3
2
1
CURRENT
CONTROL
Q2
D2
D3
Q4,5
DC/DC CONVERTER
2 SWITCHING
IC5
1
Q6
6
4
Q7(1/2)
BATTERY
1 LEVEL DETECT 2
IC4
+VB
Q7(2/2)
5 5
(BT1 ONLY)
CHARGER
CN3
4
10 OUT
IN
1
3
9 BATT
BUFFER VCC 2
7 SE
2
Q13
3 STAT1
1
LI-ION BATTERY
CHARGE MANAGEMENT
IC6
ADAPTOR (BT1K ONLY)
CN3
4
10 OUT
IN 1
3
9 BATT
BUFFER VCC 2
7 CE
2
Q13
3 STAT1
1
LI-ION BATTERY
CHARGE MANAGEMENT
IC6
4 DC/DC CONVERTER
1
IC9
5
Q1,3
+1.5V REG.
3 2
IC3
1
D8
(CHARGE)
+VB
2
8 1
BATTERY
CHGN
TIME LEDN
CHARGER
3
BATT
INH IC2
7
TEMPERATURE
DETECT
3
IC1
DR-BT1/BT1K
J1
DC IN 4.5V
- +
J1
DC IN 4.5V
- +
CN1
B1
RECHARGEABLE
BATTERY (NI-MH)
1.2V
• Signal path
F
: AUDIO