Lenovo L2021 WA, Service Manual

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Lenovo Service Manual L2021W
24
6.3 Inverter part
穝糤
IC801
TL494IDR
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
1IN+
1IN-
FEEDBACK
DTC
CT
RT
GND
C1
E1
E2
C2
VCC
OUTPUT CTRL
REF
2IN-
2IN+
Q801
PMBS3904
Q806
PMBS3904
Q805
PDTC144WK
R817
10K 1/10W 1%
D807
LL4148
D801
BAV99
3
1
2
L2021
R829
22R 1/8W
R854
NC
R855
15R 1/4W
R837
47K 1/8W
R821
1K 1/8W
D817
LL4148
R808
10K 1/10W 1%
F801
0 OHM 1/4W
R802
7.
5K +
-1%
1/
10
W
C803
JUMPER
1
2
R818
1K 1/10W 1%
R823
0R05 1/10W 5%
R803
680K 1/10W
R853
68K 1/10W
T801
POWER X'FMR
6
3
7
4
8 1
R825
22R 1/8W
CN801
CONN
1
2
Q802
AM9945N-T1-PF
1
2
3
4
8
7
6
5
S
G
S
G
D
D
D
D
C822
1uF/25V
+
C802
470UF/25V
C845
2.2uF/16V
D802
BAV99
3
1
2
R863
10K 1/10W 1%
R831
1K 1/8W
R810
51K OHM 1% 1/8W
新增
Q811
PMBS3904
Q809
RK7002
R851
5.
6K
OH
M
+
-1
%
1
/10
W
D812
LL4148
R826
1K 1/8W
R850
22R 1/8W
R827
1K 1/10W 1%
D806
LL4148
Wednesday Nov 12,2008
R822
1K 1/8W
R801
1K5 1/10W 1% D810
NC
Q808
PDTA144WK
DIM
R832
10K 1/10W 1%
R861
NC R864
NC
C839
1500PF/50V
D805
LL4148
R804
100R 1/8W
D811
NC
C834
0.1uF/25V
R820
10K 1/10W 1%
C821
0.1uF/25V
C801
18pF/6KV
C819
0.0022uF
R865
NC
C838
1500PF/50V
R841
68K OHM 1% 1/10W
C842
0.1uF 50V
R862
1M 1/10W 5%
R830
NC
+12V
Q812
PMBS3906
1
2
3
C835
NC
R814
1K5 1/10W 1%
C823
0.0022uF
R828
10K 1/10W 1%
R839
22R 1/8W
R824
1K 1/10W 1%
C824
0.1uF
Q804
PMBS3906
1
2
3
PWPCA21L2J
1
Custom
3 3
715G4174-P01-000-0010
ODM MODEL
3.INVERTER
G4174-P01-000-0010-2-100311(L)
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
ON/OFF
R856
15R 1/4W
R835
1M 1/10W 5%
D814
LL4148
C825
0.1uF/25V
CN802
CONN
1
2
C817
NC
C807
0.1uF/25V
R807
10K 1/10W 1%
C846
NC
Q807
N.C
C820
220pF50V