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1
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
QQ
3 7 63 1515 0
3.1 BLOCK DIAGRAM
A
A
CONTROL UNIT
B
CN321
LSPIN+
3
SPEAKER
2
LSPIN-
2
1
L INPUT
NJM4558MD
CN311
AUX L
LIN+
13
LIN-
15
INPUT
CN171
C
7
IPL+
13
11
IPL-
15
5
IP-BUS
1
8
IP-BUS DRIVER
TE
L 13942296513
BUS-
BUS+
D
Q101
Q102
CN803
E
9V
1
DPDT
3
KYDT
2
www
GND
4
F
10
1
http://www.xiaoyu163.com
2
SYSTEM CONTROLLER
IC 804(1/2)
PE5380A
IC 321
1
SP L
IC 311
1
AUX L
TA2050F
IP L
IC 301
1
BZ 601
BUZZER
TA2050F
18
PEE
27
5
1
TX
IC 171
TX
6
2
RX
26
HA12187FP
RX
8
28
IPPW
IPPW
SYSTEM CONTROLLER
Q170
IC 804(2/2)
PE5380A
BU
29
ASENBO
100
KYDT
1
DPDT
3
SWVDD
BU
Q103
CN1801
5V REGULATOR
OEL9V
3
1
IC 1811
5V
1
HA178L05UA
5V
OPT IN
DPDT
3
KYDT
2
Q1814
Q1813
IC 1809
6
1
GND
NJM2360M
4
x
ao
Q1811
Q1812
.
i
SWDAVCC
2
http://www.xiaoyu163.com
3
VDD REGULATOR
Q814
VDD
1
5
IC 803
34
reset
4
RESET
S-875041BUP-ABC
BACKUP SENSE
90
BSENS
Q813
91
ASENS
ACC SENSE
86
ISENS
Q810
VDD
71
TELIN
TELEPHONE MUTE
IC 341
BA3131FS
SOURCE SELECTOR
SP L
16
AUX L
18
14
IP L
20
9
Q Q
14
3
6 7
SW-2
30
SYSMUTE
MUTE
31
SYSPW
38
X2
X601
39
X1
FONT ROM
3.3V REGULATOR
5
IC 1805
1
23
IC 1802
3V
AVCC
S-818A33AUC-BGN
PD8117A
3
IC 1810
97
14
60
TSOP1840SB3V
1 5
REM
FONT DATA
REMOTE CONTROL
SENSOR
27
DPDT
OEL CONTROLLER/
IC 1812
KEY CONTROLLER
IC 1801
28
4
2
KTDT
PD5877A
OEL DATA
TC7SET08FU
88
1
5V
u163
y
Q1808
AXM-P7050/ES
3
4
2 9
9 4
8
Q815
CN802
BU
1
ACC
4
1K(1/2w)
Q808
ILM SENSE
3
1K(1/2w)
5
2
CN361
AUX L OUTPUT
Q361
MUTE
Q362
BU
SYS8 REGULATOR
Q809
SYS8
BU
Q812
1 3
1 5
0 5
8
2 9
Q364
SYSPW
B
DISPLAY UNIT
OEL UNIT
IC1803
IC1804
4,16
m
2,8
co
Q1807
16V
9V
Q1806
.
4
2 8
9 9
FUSE
BACK UP
2A
ACC
ILM
TEL MUTE
GND
9 4
2 8
9 9
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