Read LG 22LU50FD (CHASSIS:LC91M) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
POWER
R862
47
+1.8V_DDR
+3.3V
+3.3V_AVDD
+12V
+3.3V
+1.8V_AMP
C847
4.7uF
4.7uF
16V
IC803
AP1117E18G-13
2
OUT
3
IN
1
ADJ/GND
IC801
AP1117E33G-13
2
OUT
3
IN
1
ADJ/GND
R843
1.8K
+3.3V_ST
+3.3V_AVDD_MPLL
L807
CB3216UA121
26inch
0.1uF
C856
L826
2.2uH
C837
22uF
22uF
L810
BLM18PG121SN1D
26inch
C849
22uF
16V
OPT
R854
0
26inch
+3.3V_ST
PANEL_CTL
001:AJ10
+3.3V_ST
+5V_ST
R824
22K 1%
Q804
2SC3052
2SC3052
E
B
C
R809
10.5K
1%
OPC_OUT1
008:K9
+1.8V_DDR
Q800
2SC3052
26inch
E
B
C
R826
10
1%
C808
0.1uF
16V
0.1uF
16V
R827
75K
75K
1/8W
1%
+12V/+15V
R831
10K
1/10W
+3.3V
+5V_ST
L806
CB3216UA121
C843
22uF
22uF
16V
R801
0
0
OPT
L805
BLM18PG121SN1D
C836
10nF
50V
R871
8.2K
1%
C879
10uF
R807
33K
33K
OPT
C887
1uF
10V
1uF
10V
+5V_GENERAL
+5V_ST
POWER_ON/OFF1
001:AJ11;007:P8;007:AD12
L804
CB3216UA121
C803
0.1uF
16V
0.1uF
16V
R872
10K
C832
68uF
35V
L817
BLM18PG121SN1D
+5V_ST
L813
3.6uH
NR8040T3R6N
C813
0.1uF
50V
C821
68uF
35V
35V
OPT
L803
BLM18PG121SN1D
+3.3V
R830
10K
1/10W
OPT
C878
10uF
R825
22K
1%
+3.3V_ST
C838
22uF
OPT
22uF
OPT
PANEL_POWER
Q805
2SC3052
2SC3052
E
B
C
+3.3V_ST
C845
10uF
16V
16V
OPT
L827
2.2uH
C889
10uF
10V
10uF
10V
Q801
RT1P141C-T112
26inch
E
B
C
+5V_ST
Q802
2SC3052
E
B
C
+1.26V_VDDC
PWM_DIM
001:S17;008:K8
+24V/+15V
ERROR_OUT
001:AA21
INV_CTL
001:AJ10
C826
100uF
16V
26inch
16V
26inch
C824
220uF
220uF
16V
A_DIM 001:S16
Q806
RSR025P03
S
D
G
POWER_ON/OFF1
001:AJ11;007:M13;007:AD12
R874
75K
5%
75K
5%
C882
330pF
330pF
R873
56000
5%
56000
5%
C883
330pF
330pF
C876
22uF
22uF
C880
22uF
22uF
L812
CIC21J501NE
C840
1uF
10V
C800
100uF
16V
16V
C802
0.1uF
16V
C806
100uF
100uF
16V
C807
0.1uF
16V
OPT
C814
0.1uF
16V
0.1uF
16V
C811
0.1uF
16V
0.1uF
16V
C815
0.1uF
16V
0.1uF
16V
C820
0.1uF
0.1uF
16V
26inch
C865
0.1uF
0.1uF
16V
26inch
C822
100uF
16V
16V
C825
0.1uF
16V
0.1uF
16V
C827
0.1uF
16V
0.1uF
16V
C841
0.01uF
25V
C842
0.1uF
16V
0.1uF
16V
C859
0.1uF
16V
0.1uF
16V
C877
0.1uF
16V
0.1uF
16V
C885
0.1uF
16V
R800
10K
R802
10K
10K
26inch
R804
10K
10K
OPT
R814
100
100
R818
3.3K
3.3K
26inch
R821
10K
10K
R822
10K
10K
R823
10K
OPT
R832
10K
10K
OPT
R833
10K
10K
R837
22K
R839
22K
0
R841
R842
10K
R856
4.7K
4.7K
22
R859
OPC_DISABLE
R860
22
OPC_ENABLE
D801
100V
1N4148W_DIODES
OPT
C853
1uF
25V
IC806
BD9150MUV
1
PGND2_1
3
PVCC_2
7
SW1_1
9
EN1
10
FB1
11
ITH1
12
AGND
13
NC
14
AVCC
15
ITH2
16
FB2
17
EN2
18
SW2_1
19
SW2_2
20
PGND2_2
5
PGND1_1
8
SW1_2
6
PGND1_2
4
PVCC_3
2
PVCC_1
C891
0.47uF
25V
C809
10uF
16V
16V
+12V/+15V
R885
12.4K
12.4K
1%
C817
1000pF
OPT
C818
0.1uF
0.1uF
50V
L831
CIC21J501NE
C816
5600pF
50V
IC808
MP2305DS
3
SW
2
IN
4
GND
1
BS
5
FB
6
COMP
7
EN
8
SS
C830
0.1uF
16V
0.1uF
16V
+5V_GENERAL
R883
9.1K
R882
100K
R884
56K
1%
56K
1%
C810
0.47uF
25V
L832
22uH
22uH
+5V_USB_REAR
L833
MLB-201209-0120P-N2
C833
0.1uF
16V
0.1uF
16V
C834
10uF
10V
10uF
10V
C828
22uF
16V
22uF
16V
3225
C829
22uF
16V
22uF
16V
3225
C804
1uF
10V
10V
R803
4.7K
IC805
MP2212DN
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
P806
SMAW200-11
22inch
1
15V
2
15V
3
GND
4
GND
5
5.2V
6
5.2V
7
GND
8
OLP
9
ON
10
BRT_ADJ
11
M/S
L801
BLM18PG121SN1D
22inch
L802
BLM18PG121SN1D
22inch
A_DIM_22
A_DIM_22
PWM_DIM_22
007:H23
INV_CTL_22
INV_CTL_22
0
R808
22inch
L809
BLM18PG121SN1D
22inch
+5V_ST
R842-*1
22K
R843-*1
2.7K
Q807
22inch
22inch
E
B
C
L818
BLM18PG121SN1D
26inch
BLM18PG121SN1D
26inch
R877
22K
22inch
22K
22inch
C892
0.1uF
50V
22inch
0.1uF
50V
22inch
POWER_ON/OFF1
AMP_VCC
L820
BLM18PG121SN1D
26inch
Q808
22inch
22inch
S
D
G
+12V/+15V
R875
10K
22inch
C895
0.1uF
50V
0.1uF
50V
C893
2.2uF
22inch
2.2uF
22inch
+24V/+15V
R876
2.2K
22inch
2.2K
22inch
C894
0.01uF
50V
0.01uF
50V
+12V
L819
BLM18PG121SN1D
22inch
0
R806
22inch
C812
0.1uF
50V
0.1uF
50V
PWM_DIM_22
P805
FW20020-24S
26inch
19
NC
14
12V
9
5.2V
4
GND
18
24V
13
12V
8
5.2V
3
GND
17
24V
12
GND
7
5.2V
2
PWR_ON
16
GND
11
GND
6
GND
1
NC
20
INV_ON
15
GND
10
5.2V
5
GND
21
A_DIM
22
ERROR_OUT
23
PWM_DIM2
24
PWM_DIM1
C831
100pF 50V
OPT
R805
4.7K
4.7K
26inch
PULL_UP_INV_ON
R817
3.3K
3.3K
22inch
R815
15K
15K
6V_PULL_UP
+5V_ST
R816
3.3K
3.3K
OPT
Stand-by +3.3V
EAX61023402
7 9
2009.04.28
+3.3V /
50 mA
450 mA
FROM LIPS & POWER B/D
+5V_GENERAL/
S6 core 1.26 volt
R1
R2
PI_080719
PANEL Power
Vout=0.8*(1+R1/R2)
R1
Close to IC
$0.07
C IN
465 mA @85% efficiency
C OUT
Close to IC
Placed on SMD-TOP
Placed on SMD-TOP
1600 mA
MAX 3A
4.9A 0.0150OHM 34MHZ
R2
Vout=0.8*(1+R1/R2)
+1.8V_DDR
+5V_USB
Amp Power & +12V/+15V
R2
Vout=0.923*(1+R1/R2)
Placed on SMD-TOP
R1
LC91M(22/26LU50FD-CA)
(5V_PANEL)
(12V_PANEL)
5V_PANEL
12V_PANEL
22inch
26inch
Click on the first or last page to see other 22LU50FD (CHASSIS:LC91M) service manuals if exist.