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RS232C
IR_OUT_RS232C
+3.5V_ST
IC3800
MAX3232CDR
C3800
0.1uF
C1+
VCC
1
16
C3804
C3801
0.1uF
V+
GND
0.1uF
D3804
2
15
20V
OPT
C1-
DOUT1
3
14
C3802
0.1uF
C2+
RIN1
4
13
C2-
ROUT1
5
12
+3.5V_ST
C3803
0.1uF
V-
DIN1
6
11
DOUT2
DIN2
7
10
RIN2
ROUT2
8
9
EAN41348201
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.
Copyright
2014 LG Electronics Inc. All rights reserved.
Only for training and service purposes
2A@5V /1A@12V FOR COMMERCIAL(RS-232C POWER)
EXT_5V
EXT_12V
10
5
9
4
8
R3820
100
3
7
R3821
100
2
6
D3805
20V
1
OPT
+3.5V_ST
SPG09-DB-009
JK3803
R3834
50V
1K
BAP70-02
D3803
R3811
R3814
4.7K
4.7K
RS232_RX
RS232_TX
EXT UART SWITCH
DBG_SW
CONNECTION
L
B0 - A
M14 ADJ.
M14 DEBUG
H
B1 - A
UART_SW1
IC3811
NLASB3157DFT2G
+3.5V_ST
SELECT
B1
R3801
22
6
1
SOC_DBG_TX
ON SEMICONDUCTOR
VCC
ANALOG SWITCH
GND
5
2
C3822
0.1uF
A
B0
R3802
22
4
3
SOC_TX
RS232_TX
EAN38256201
IC3812
NLASB3157DFT2G
SELECT
B1
R3803
22
6
1
SOC_DBG_RX
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
C3823
0.1uF
A
B0
R3804
22
4
3
SOC_RX
RS232_RX
EAN38256201
UART DBG SWITCH
CONNECTION
UART_DBG_SW
L
B0 - A
Debug NEC
H
B1 - A
Debug M14
+3.5V_ST
IC3805
NLASB3157DFT2G
R3844
4.7K
B1
SELECT
1
6
SOC_DBG_TX
ON SEMICONDUCTOR
ANALOG SWITCH
GND
VCC
2
5
C3814
0.1uF
B0
A
3
4
NEC_DBG_TXD
EAN38256201
+3.5V_ST
IC3807
R3845
NLASB3157DFT2G
4.7K
OPT
B1
SELECT
1
6
SOC_DBG_RX
ON SEMICONDUCTOR
ANALOG SWITCH
GND
VCC
2
5
C3815
0.1uF
B0
A
3
4
NEC_DBG_RXD
EAN38256201
UART_SW2
CONNECTION
L
B0 - A
H
B1 - A
R3805
22
SOC_NEC_RX
GND
RS232_TX
R3806
22
SOC_NEC_TX
GND
RS232_RX
EXT_SPK_CONTROL & DBG OUT
+3.3V_NORMAL
IC3806
R3849
NLASB3157DFT2G
+3.5V_ST
3.6K
UART_DBG_SW
B1
SELECT
1
6
EXT_SPK_VOL+
ON SEMICONDUCTOR
+3.5V_ST
ANALOG SWITCH
GND
VCC
2
5
B0
A
3
4
JK_DBG_TX
EAN38256201
JK_DBG_TX
+3.3V_NORMAL
IC3808
R3851
NLASB3157DFT2G
3.6K
B1
SELECT
1
6
EXT_SPK_VOL-
ON SEMICONDUCTOR
ANALOG SWITCH
GND
VCC
2
5
B0
A
3
4
JK_DBG_RX
JK_DBG_RX
EAN38256201
xxLY960H-ZA
RS232/UART/VOL_CTL
INTERACTIVE
NEC USB D/L
UART_SW2
IC3802
NLASB3157DFT2G
+3.5V_ST
B1
SELECT
1
6
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
2
5
C3811
0.1uF
B0
A
3
4
NEC_TX
EAN38256201
IC3804
NLASB3157DFT2G
B1
SELECT
1
6
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
2
5
C3813
0.1uF
B0
A
3
4
NEC_RX
EAN38256201
DBG_SW
CONNECTION
L
B0 - A
DEBUG_NEC/M14
DBG_SW
H
B1 - A
EXT.SPK VOL Control
C3816
0.1uF
JK3801
PEJ027-04
E_SPRING
3
T_TERMINAL1
6A
+3.5V_ST
B_TERMINAL1
7A
OPT
OPT
C3818
D3806
R_SPRING
1000pF
4
C3817
5.6V
50V
0.1uF
T_SPRING
5
B_TERMINAL2
7B
OPT
T_TERMINAL2
C3819
D3807
6B
1000pF
5.6V
50V
OPT
EXT_SPK
2014.06.23
38
LGE Internal Use Only
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