THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
C3802
0.1uF
C3803
0.1uF
+3.5V_ST
IR_OUT_RS232C
R3814
4.7K
C3801
0.1uF
JK3803
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
IC3800
MAX3232CDR
EAN41348201
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
R3811
4.7K
C3800
0.1uF
R3821
100
R3820
100
+3.5V_ST
EXT_12V
RS232_RX
RS232_TX
D3804
20V
OPT
D3805
20V
OPT
EXT_5V
C3804
0.1uF
JK_DBG_TX
JK_DBG_RX
JP3802
DBG_SW
C3814
0.1uF
IC3805
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
C3818
1000pF
50V
OPT
UART_DBG_SW
EXT_
D3806
5.6V
OPT
IC3808
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
C3815
0.1uF
+3.5V_ST
IC3806
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
C3817
0.1uF
+3.5V_ST
+3.5V_ST
EXT_SPK_VOL-
IC3807
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
C3819
1000pF
50V
OPT
D3807
5.6V
OPT
JP3801
C3816
0.1uF
JK3801
PEJ027-04
EXT_SPK
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
+3.5V_ST
D3803
50V
BAP70-02
R3834
1K
R3849
3.6K
R3851
3.6K
R3844
4.7K
+3.5V_ST
+3.3V_NORMAL
+3.3V_NORMAL
IC3812
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
SOC_DBG_TX
RS232_TX
C3811
0.1uF
+3.5V_ST
UART_SW1
C3822
0.1uF
IC3804
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
IC3802
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
RS232_RX
SOC_DBG_RX
SOC_NEC_TX
C3813
0.1uF
SOC_NEC_RX
UART_SW2
SOC_RX
+3.5V_ST
C3823
0.1uF
IC3811
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
ON SEMICONDUCTOR
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
SOC_TX
SOC_DBG_TX
JK_DBG_TX
JK_DBG_RX
NEC_DBG_TXD
NEC_DBG_RXD
SOC_DBG_RX
R3801
22
R3805
22
R3806
22
R3803
22
R3802
22
R3804
22
R3845
4.7K
OPT
RS232_TX
NEC_TX
R3855
0
R3854
0
NEC_RX
RS232_RX
R3859
0
R3858
0
RS232C
11
RS232/UART/VOL_CTL
1A@5V /1A@12V FOR COMMERCIAL(RS-232C POWER)
EXT_SPK_CONTROL & DBG OUT
CONNECTION
UART DBG SWITCH
B0 - A
EXT.SPK VOL Control
B1 - A
B0 - A
DEBUG_NEC/M14
Debug M14
Debug NEC
CONNECTION
B1 - A
L
UART_DBG_SW
L
DBG_SW
H
H
L
H
B0 - A
UART_SW2
B1 - A
H
CONNECTION
M14 ADJ.
NEC INTERACTIVE
CONNECTION
EXT UART SWITCH
B0 - A
CPU INTERACTIVE
B1 - A
L
DBG_SW
M14 DEBUG
xxLX761H-ZA
29
2014.05.02
Copyright
ⓒ
2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for 49LX761H
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