Philips BT2500B/W-00 Service Manual page 28

BT speaker
Firmware update
UART-RX
RX
UART-TX
TX
P20
P20
ADAP-IN-IC
ADAP
BK-0UT
BK-OUT
BAT_IN
BAT_BT
GND3
R78
5K1
BT/AUX
C
R46 8050
Q11
10K
8050 B
Q2
VDD-IO
C
R61 R45
P16
10K 10K E
B
C
C76
R34
E
NC
NC
E
C31
C
R68
106 LN6206 U7
+5V
2K
2 3
B D3
4148
out in
E C75
8050 R30
104
2K
Q3
FW3717
BT1
C24
334
BT_AUDIO
30
NFC
31
BUZZER
32
C86 EAN
33
AOHPM
22P
C26
34
SPKR
473
35
SPKL
36
MIC_P
37
R28 R29
MIC_N
MIC+
38
1K 1K MIC_BIAS
39
AIR
40
AIL
C22
41
GND4
475
C23
42
RSTN
+
475
C33
MIC
C29
220P
473
-
R27
2K
MIC-
C21
106
Circuit Diagram
PHONE1
DET
EJ325D6U0BB3-69T
6
0R
FB1 1K
R19
5
4
FB2 0R
3
1K
R20
2
1
0R
FB3
R21
22K
R76
USB_VDD
NC
USB1
DC IN:5V/1.2A USB_VDD
FUSE
1 1 2
POWER
2
DM
FB4 FB120 USB_GND
3
DP
C42
4
C13
ID
5
GND 106
104
FB5 FB120
R95
47K
R79
15K
STBY
R2 R16
100K 15K
R81
MUTE
10K
E
C44
Q16
105
Q13 8550
Q14 E
8050
8050
R54
1K
B
R17 10K
B
AUX
C
R57 10R
C
DET
U6 IT7536
2
in out
MONO_ANT
R33
680R
21
V-
20 UART-RX
RXD
19
TXD
UART-TX
18
REV
17
FWD
16 P02
P02
15
PA_EN
P16
14
P24
13
LED2
12
8550
LED1
11
ON/OFF MFB
10
SK1 SYS-POWER
9
BK
BK-0UT
SYS-POWER
R31
Q5
10K
VDD-IO
2302
SYS-POWER
P00
R41
10R
BAT_IN
G
C70 R32
C55
C54 NC
470uF/10V
104
106
4-1
C17 104
1K AUX_IN
R89
AUX_INA
C87
SW2-B
22P
AUX
C18 7
R40
BT_AUDIO
1K
102
BT
5
6
R38
R39 OFF
1K
C27 8
C93
22K
102
22P
C88
22P
R55
ATD6009
U4
1K
6
CHRG2
R44
0R
7 2
CHRG1 PROG
BT+
1
NC.
5
R35 BAT
8
1K
NC
C91
C
C14
Q17
R15
B
8050
2.7K
106
B
R97
0R
1.2K
LED1
R14
E
BT-
10K
R83
3
D2 4148
LED2
BAT_IN
100K
R85
C
B
Q18
8050
E
E
100K
B R43
Q4
C
Q7
R42
1K
Q6
2301
MFB
R37
100K
R47
C34
100K
225
CON1 CON2
OUT
IN''
GND1
NPC3 NPC3
1 1
C85 2 2
C92
22P
AUDIO
22P
3 3
C84
0UT'
22P
Q10
100K 100K
8050
R48
D10 C C
R50
R70 1M
SS24
B B
Q9
8050
E E
C68
106
SS24
D4
ME2149S
U3
Q15
L1
ST2341
7
SS24
LX
D1
4.7UH
8 1
LX. NC
C64
226
5
VDD
6
VDD.
R10
4
FB
180K
3
CE
C25 R11
C28
106
75K
106
C66
104
GND2
2 VR1
VR PCB
IN'
R53
SW2-A
100K
D9
4148
+5V
4
OFF
1 2
C69
BT
106 R64
3
VCC
100K
AUX
+6V8
+5V
VCC
AUX
Q8
Q20
2301
R88
BAT54C
100K
R51
100K
Q12
R12
8050
27K_1%
C67
47K
R36
100uF/16V
R13
6.2k_1%