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Auto Set Id - LG 32SE3B-BE Service Manual

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RS-232C
+3.5V_ST
R803
10K
RS232C
R808
IR
0
C
R802
B
Q801
2SC3875S(ALY)
IR
47K
E
R801
0
+3.5V_ST
IC801
MAX3232CDR
C1+
VCC
1
16
C803
C8011
0.1uF
1uF
V+
GND
50V
10V
2
15
T1OUT
C1-
DOUT1
3
14
C2+
RIN1
4
13
50V
R1IN
C804
0.1uF
C2-
ROUT1
5
12
V-
DIN1
6
11
DOUT2
DIN2
T2OUT
7
10
RIN2
ROUT2
R2IN
8
9
C802
C801
0.1uF
0.1uF
50V
50V
IC802
SN74LV4052APWR
2Y0
R804
22
1
16
BUF_TX
2Y2
2
15
2-COM
R805
22
3
14
RS232_TX
2Y3
R806
0
4
13
READY
2Y1
R807
22
5
12
BUF_RX
INH
R809
0
6
11
GND_1
7
10
GND_2
8
9
RS-232C MUX
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 ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
RS-232C
R812
10K
R817
IR_CON
C
R295
R830
0
M6
0
100
R811
B
Q802
R2IN
2SC3875S(ALY)
M1
47K
E
R829
M3_DETECT
100
T2OUT
M4
M5_GND
* [141125] Color Changed from Black to Green.
RS-232C
M6
100
R832
T1OUT
M1
M3_DETECT
100
R831
R1IN
M4
M5_GND
L801
BLM18SG121TN1D
OPTION
C805
22uF
10V
+3.5V_ST
R815
R819
R813
4.7K
4.7K
1K
MAX_CON
BUF_RX
R833
R826
0
0
MAX_CON
R834
D802
0
BAT54_SUZHO
MAX_CON
30V
R835
0
MAX_CON
BUF_TX
R836
D803
R828 0
0
D801
BAT54_SUZHO
BAT54_SUZHO
30V
30V
R810
20K
+3.5V_ST
0
VCC
R818
C8012
1Y2
1uF
10V
1Y1
R820
22
BUF_TX
1-COM
R821
22
RS232_RX
1Y0
R822
22
BUF_RX
INPUT
ON channel
1Y3
R823
0
INH
B
A
0
0
0
1Y0, 2YO
READY
0
0
1
1Y1, 2Y1
A
R824
22
RS232_CTL0
0
1
0
1Y2, 2Y2
0
1
1
1Y3, 2Y3
B
1
X
X
NONE
R814
R816
4.7K
4.7K
RS232C/I2C SWITCH
UART_SW2
L
H
OUT
+3.5V_ST
6
C92
0.1uF
1
3
NEC_RX
4
5
PEJ038-4G6
JK801
IN
NEC_TX
6
1
3
4
5
+3.5V_ST
PEJ038-4B6
JK802
N_MAX
C96
0.1uF
N_MAX
R211
ROUT1
0
SELECT
N_MAX
R213
DIN1
0

AUTO SET ID

+3.5V_ST
MODE
SET_ID
C99
0.1uF
S7 NORMAL
RS-232C-CLONE
SET_ID
R293
RESERVED
IROUT
RESERVED
0
CONNECTION
EEPROM_SW
A - B0
INTERACTIVE
L
A - B1
NEC USB_DOWNLOAD
H
R166
100
UART_SW2
IC12
+3.5V_ST
NLASB3157DFT2G
SELECT
B1
6
1
MST_NEC_TX
ON SEMICONDUCTOR
C93
ANALOG SWITCH
VCC
GND
0.1uF
5
2
A
B0
4
3
RS232_RX
EEPROM_SCL
EAN38256201
IC13
NLASB3157DFT2G
SELECT
B1
6
1
MST_NEC_RX
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
RS232_TX
EEPROM_SDA
EAN38256201
N_MAX
R210
100
UART_ROUT1
N_MAX
IC17
+3.5V_ST
NLASB3157DFT2G
SELECT
B1
6
1
ANALOG_1
ON SEMICONDUCTOR
N_MAX
VCC
ANALOG SWITCH
GND
C97
5
2
0.1uF
N_MAX
A
B0
R215
4
3
DIN2
0
EAN38256201
N_MAX
IC18
NLASB3157DFT2G
B1
6
1
ANALOG_2
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
N_MAX
R217
EAN38256201
ROUT2
0
SET_ID
R294
100
IR_CTL
SET_ID
IC22
NLASB3157DFT2G
SELECT
B1
6
1
ANALOG_5
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
EAN38256201
CONNECTION
A - B0
NEC-EEPROM
A - B1
MSTAR-EEPROM
R171
22
EEPROM_SW
C94
1uF
6.3V
IC15
NLASB3157DFT2G
SELECT
B1
6
1
I2C_SCL
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
NEC_EEPROM_SCL
EAN38256201
IC16
NLASB3157DFT2G
SELECT
B1
6
1
I2C_SDA
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
NEC_EEPROM_SDA
EAN38256201
N_MAX
R214
100
UART_ROUT2
N_MAX
IC19
NLASB3157DFT2G
SELECT
B1
6
1
ANALOG_3
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
EAN38256201
N_MAX
IC20
NLASB3157DFT2G
SELECT
B1
6
1
ANALOG_4
ON SEMICONDUCTOR
ANALOG SWITCH
VCC
GND
5
2
A
B0
4
3
EAN38256201
LS33B
14/10/09
RS-232C
LGE Internal Use Only

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32se3b