Auto Set Id - LG 32SE3B-BE Service Manual

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