LG LT66 Benutzerhandbuch Seite 67

EXT_SPK AMP
+5V_SUB_AMP
EXT_SPK
EXT_SPK EXT_SPK
C1700 C1701
IC1700
22uF
0 . 1 u F
TPA6011A4PWPRG4
16V
PGND_1
1
ROUT-
2
EXT_SPK_R-
EXT_SPK
R1700
PVDD_1
1K
3
RHPIN
4
C1702
1uF
10V
RLINEIN
5
EXT_AMP_R_IN
EXT_SPK
RIN
6
VDD
7
LIN
8
LLINEIN
9
EXT_AMP_L_IN
C1703
1uF
LHPIN
10V 10
EXT_SPK
PVDD_2
11
LOUT-
12
EXT_SPK_L-
EXT_SPK
R1701
1K
EXT_SPK_CONTROL/DEBUG
R1704
100
+3.5V_ST
IC1701
NLASB3157DFT2G
C1705
0 . 1 u F
SELECT
6 1
JK1701
PEJ027-04
ON SEMICONDUCTOR
VCC ANALOG SWITCH
5 2
3 E_SPRING
A
6A T_TERMINAL1
4 3
7A B_TERMINAL1 EAN38256201
4 R_SPRING IC1702
NLASB3157DFT2G
5 T_SPRING
SELECT
6 1
7B B_TERMINAL2
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
6B T_TERMINAL2
5 2
A
4 3
EAN38256201
EXT_SPK OUT
EXT_SPK
JK1700
PEJ029-02
G_SPRING L1700
8
L1701
E_SPRING
3
L1702
R_SPRING
4
T_SPRING L1703
5
C1704 C1706 C1707 C1708
B_TERMINAL
7 39pF 39pF 39pF
39pF
OPT OPT OPT OPT
T_TERMINAL
6
+3.3V_Normal
OPT
R1702
EXT_SPK
51K
R1705
100
EXT_SPK
R1703
4.7K
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+5V_Normal
BLM18PG121SN1D
ROUT+
24
EXT_SPK_R+
EXT_SPK
EXT_SPK
R1711
R1714
SE/BTL 100 1K
23
+5V_SUB_AMP
HP/LINE
EXT_SPK
22
R1708 EXT_SPK
R1712
0
VOLUME
3.3K
+3.5V_ST
21
EXT_SPK
SEDIFF
20
R1718
EXT_SPK 4.7K
R1717
SEMAX
100
19
EXT_SPK
EXT_SPK
C 100
AGND R1715
18
R1719
10K
B
BYPASS Q1700
17 E
MMBT3904(NXP)
EXT_SPK
OPT
C1709
R1716 EXT_SPK
1uF
FADE 100
16
25V
SHUTDOWN
15
LOUT+
14
EXT_SPK_L+
EXT_SPK
R1713
PGND_2
1K
13
DBG_SW CONNECTION
L A - B0 DEBUG_NEC/MSTAR
H A - B1 EXT_SPK CONTROL
DBG_SW
+3.5V_ST
R1709
3.6K
R1706
B1
0
EXT_VOL+
GND
B0
DBG_TX
+3.5V_ST
R1710
3.6K
R1707
B1
0
EXT_VOL-
GND
B0
DBG_RX
EXT_SPK
EXT_SPK_R-
EXT_SPK
EXT_SPK_R+
EXT_SPK
EXT_SPK_L-
EXT_SPK
EXT_SPK_L+
EXT_SPK_DET
UART/I2C SWITCH
400mA
+5V_SUB_AMP
EXT_SPK
UART_SW1 CONNECTION
L1704
L A - B0
H A - B1 MSTAR DEBUG
R1720
100
IC1703
NLASB3157DFT2G
+3.5V_ST
SELECT
6
ON SEMICONDUCTOR
ANALOG SWITCH
C1710 VCC
5
0 . 1 u F
A
4
MST_TX
EAN38256201
SUB_AMP_MUTE
IC1704
NLASB3157DFT2G
SELECT
6
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
5
A
4
MST_RX
EAN38256201
R1722
0
UART_SW CONNECTION
L A - B0
H A - B1
R1721
100
NLASB3157DFT2G
+3.5V_ST
SELECT
6
ON SEMICONDUCTOR
C1711
0 . 1 u F VCC ANALOG SWITCH
5
A
4
DBG_TX
NLASB3157DFT2G
SELECT
6
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
5
A
4
DBG_RX
UART_SW2
MSTAR ADJ L A - B0
H A - B1
UART_SW1
+3.5V_ST
B1
1
MST_DBG_TX
GND
2
C1712
0 . 1 u F
B0
3
R1726
UART_TX
100
NEC_RX
R1723
0
OPT
B1
1
MST_DBG_RX
GND
2
R1727
100
B0 NEC_TX
3
UART_RX
OPT
EEPROM_SW
NEC DEBUG L A - B0
MSTAR DEBUG H A - B1
UART_DBG_SW
+3.5V_ST
+3.5V_ST
IC1705
R1724 C1713
4.7K
0 . 1 u F
B1
1
MST_DBG_TX
R1725
0
GND
EEPROM_SCL
2
B0
3
NEC_DBG_TX
EAN38256201
IC1706
B1
1
MST_DBG_RX
GND
2
B0
3
NEC_DBG_RX EEPROM_SDA
EAN38256201
EMEA INTERACTIVE
CONNECTION
INTERACTIVE
NEC USB_DOWNLOAD
R1728
100
UART_SW2
IC1707
NLASB3157DFT2G
SELECT B1
6 1
MST_NEC_TX
ON SEMICONDUCTOR
ANALOG SWITCH
VCC GND
5 2
A B0
4 3
UART_RX
EAN38256201
IC1708
NLASB3157DFT2G
SELECT B1
6 1
MST_NEC_RX
ON SEMICONDUCTOR
ANALOG SWITCH
VCC GND
5 2
A B0
4 3
UART_TX
EAN38256201
CONNECTION
NEC-EEPROM
MSTAR-EEPROM
R1731
22
EEPROM_SW
C1714
1uF
50V
IC1709
NLASB3157DFT2G
SELECT B1
6 1
I2C_SCL
ON SEMICONDUCTOR
ANALOG SWITCH
VCC GND
5 2
A B0
4 3
NEC_EEPROM_SCL
EAN38256201
R1730
0
OPT
IC1710
NLASB3157DFT2G
SELECT B1
6 1
I2C_SDA
ON SEMICONDUCTOR
ANALOG SWITCH
VCC GND
5 2
A B0
4 3
NEC_EEPROM_SDA
EAN38256201
R1729
0
OPT
GP4_MSTAR
2 0 1 1 . 0 8 . 2 1
1 7
EXT SPK
LGE Internal Use Only
2 0