Lenovo L172 Service Manual page 21

17” lcd color monitor
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17" LCD Color Monitor
VDD
R804
10K
1/10W
 
R803
2
1
10K/NC
R801
Q801
10K
2
1
1
2N7002
BRIGHTNESS
R802
C830
10K/NC
1000pF/NC
R806
C826
100K/NC
0.01uF/NC
C831
0.33uF
R861
PANEL_ID
2
PANEL_ID
100K_1%
R871
2
1
1
BL_CTL
10K
1/2W
 
C871
R872
0.1uF_NC
10K/NC
VDD
C811
1uF
R815
R811
30K
3M3
U811
1
16
DRV1
PGND
2
15
VDDA
DRV2
3
14
TIMER
GNDA
4
13
DIM
CT
5
12
ISEN
SSTCMP
6
11
VSEN
LCT
C847
7
10
OVPT
ENA
0.022uF/25V
8
9
C812
NC1
NC2
R812
R816
0.1uF
20K
OZ9938GN
620K
 
1/10W
C846
C832
1uF
0.1uF
VDD
R807
2
1
10K
1/10W
 
R819
C819
1M 
0.01uF/25V
1
Isen
+12V
Isen
2
Q873
Q880
PDTA144EU
2N7002
Q871
2N7002
R874
R873
330
 
1/10W
2K
 
1/10W
1
Q874
2N3904
ZD874
VDD
RLZ5.6B
C874
1uF
PT801
1
2
7
+12V
3
4
C820
C821
R822
R823
5
8
1uF
470uF/25V
10R
10R
6
24:24:2400
C822
C823
0.001uF
0.001uF
R813
33K_1%
Q821
1
8
S1
D1
2
7
G1
D1
3
6
C824
S2
D2
4
5
5PF/NC
G2 D2
AM9945N
C825
5PF/NC
PT802
1
C813
2
7
560pF
3
+12V
4
C841
C840
5
8
470uF/25V
1uF
6
R842
R843
24:24:2400
10R
10R
C842
C843
0.001uF
0.001uF
Q841
1
8
S1
D1
2
7
G1
D1
3
6
C844
S2
D2
4
5
5PF/NC
G2 D2
AM9945N
C845
5PF/NC
R863
2
1
33K
 
1/4W
VDD
R880
10K
 
1/10W
1
C880
0.1uF/25V
Q881
2N7002
1
2
1K
R881
C881
0.01uF
100K
 
1/10W
Q883
2N7002
1
2
1K
R883
C883
0.01uF
100K
 
1/10W
Q885
2N7002
1
2
1K
R885
C885
100K
 
1/10W
0.01uF
Q886
2N7002
1
2
1K
R887
C887
100K
 
1/10W
0.01uF
21
C802
5pF/3KV
R834
6.2M
 
1/2W_NC
C803
C801
5pF/3KV
R835
10pF/6KV
1
2
10K_1%
R824
C838
7.5K_1%_NC
1000pF
R836
10K_1%
BAV70/SOT23B
2
R837
C860
7.5K_1%
220pF
R829
1
0
 
1/10W
R830
C805
R839
10K_1%_NC
5pF/3KV_NC
6.2M
 
1/2W
C804
5pF/3KV_NC
R854
C807
5pF/3KV
6.2M_NC
C806
D853
10pF/6KV
C808
BAV70/SOT23B
5pF/3KV
R855
1
10K_1%
R857
R856
C861
2
7.5K_NC
10K_1%
1000pF
R825
C858
7.5K_1%
390pF
R849
1
2
0
1/10W
 
C810
R850
10K_1%_NC
5pF/3KV_NC
R859
6.2M
 
1/2W
C809
5pF/3KV_NC
D881
R882
1
OP1
 
1/10W
IN4148
D883
R884
1
OP2
 
1/10W
IN4148
D885
R886
1
OP3
 
1/10W
IN4148
D887
R888
1
OP4
 
1/10W
IN4148
Lenovo L172
1
CN831
OP1
2
CONN
R831
1K 
D833
D831
BAV99
3
R833
1.2K 
OP2
2
CN833
1
CONN
1
CN851
OP3
2
CONN
R851
3
1K 
D851
BAV99
R853
1.2K 
OP4
2
CN853
1
CONN
R865
R866
C865
100K/NC
232 
33nF

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