LG L1718S-BN - - 17" LCD Monitor

32
SCHEMATIC DIAGRAM
1. DC to DC
C166 0.1/ 50V
+
C108 220uF/16V
VCC5V
LED_GREEN_2
C103 0.1/ 50V
CN106
4500-05
5
4
3
2
1
5
4
3
2
1
Q107
2N7002K
R108 4K7
VCC3.3
Q103
PMBT3904
Q101 AP2305GN
G
DS
Brightness
C158
100P J
VCC5V
ON/OFF
C161
100P J
R105 20K
LED_AMBER_2
C104 0.1/ 50V
R109 4.7K
C164
100P J
C109 0.1/50V
Q106
PMBT3904
C163
100P J
C165/NC
1u/16V
R102 100K
R107 220
LED_AMBER_2
VCC3.3 3,4
VLCD
VCC3.3
C162
100P J
VCC1.8
Q104
PMBT3904/NC
+
C111 10uF/25V
R110 4K7
VCC1.8 4
Key _DOWN
Q105
PMBT3906
3
1
2
CN105
2x4PIN
2
4
5
6
7
8
3
1
VCC3.3
LED_AMBER
C107 0.1/50V
LED_GREEN
PANEL_ENABLE
VCC5V
R189
4K7/NC
From Keypad
C160
100P J
C106
0.1/50V
VLCD 4
Key _MENU
Key _AUTO
Dimmer
4
U101
LD1117AL-3.3V
3
1
2
VIN
ADJ
VOUT
R103 0
ON/OFF
CN101
4500-06
6
5
4
3
2
1
6
5
4
3
2
1
Q102
PMBT3906
3
1
2
R190
0
+
C105
22uF/16V
+
C102 100uF /16V
U102
LD1117AL-1.8V
3
1
2
VIN
ADJ
VOUT
VCC3.3
Key _POWER
From Power & Inverter
R106 10K
LED_GREEN_2
R101
100
VCC5V
+
C101 100uF /16V
CCFL_ENABLE
Key _UP
R188
4K7/NC
Brightness
C159
100P J
2. Input
B
C115 47n/25V
VCC3.3
DDCA_SCL
R
R126/NC 100
VCC3.3
DDCA_SDA
C125 33p/ 50V
DETECT
VCC3.3
C116 47n/25V
ZD106 5V6
C118 47n/25V
R124 100
R149 4K7
C121 NC
C117 47n/25V
R117 100
U103
AT24C02N-10SI
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R114 100
R130 100
TVS103
BAV99
R129 100
FB108 BEAD60OHM
ZD108 5V6
DDCA_SDA_I
DDCA_SCL_I
BIN
R135 75 1%
TVS101
BAV99
C122 NC
G
R132 100
TVS104
BAV99
R137 2. 2K
R
HSYNC
R120 100
PC5V_VGA
GNDR
C124 NC
RIN
VSY N C
TVS102
BAV99
R150 4K7
G
PC5V_VGA
C120 NC
C114 47n/25V
R131 100
FB101
SBK121Y
C129 0.1/50V
R136 2. 2K
R122 4K7
C112 47n/25V
R133 75 1%
SOG
B
DDCA_SCL
DDCA_SDA
D103 BAV70
3
2
1
C123 NC
R127 100
ZD101 5V6
C113 47n/25V
GNDB
R116 56 1%
DET_VGA
GNDG
R125 100
ZD107 5V6
R104/NC 0
R119 56 1%
R111/NC 0
R121 470
CN103
DZ11AA1-HW6
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
1617
DETECT
ZD105 5V6
FB107 BEAD60OHM
C119 NC R134 75 1%
FB109 BEAD60OHM
R113 56 1%
C126 220p/50V
GIN