Lenovo Service Manual L2021W
23
6.2 Power Board
715G4174-2
---adapter 5V/14.5V
+12V
IC902
PC123X2YFZOF
1
2
4
3
+12V
C926
0.1uF/16V
!
Audio_on/of f
FB903
BEAD
1
2
R935
100 OHM 1/4W
C906
1500pF2KV
!
R912
220 OHM 1/4W
!
R927
3.6K OHM 1% 1/10W
12Vout for audio
C925
NC
!
F901
FUSE
!
+
C922
470UF M 25V
D916
LL4148
R942
1K 1/10W 1%
R939
1K 1/8W
+
C915
470uF 16V
T901
POWER X'FMR
7
8
9
10
11
12
4
5
6
1
2
!
G4174-P01-000-0010-2-100311(L)
R933
300K OHM 1/4W
!
HS4
D908
1
2
L2021
D905 31DQ06FC3
N.C
D908
NC
1
2
3
!
D906
FCH10U10
1
2
3
D915
LL4148
C924
0.1uF
R961
100 OHM 1/4W
R943
470R 1/8W
PWPCA21L2J
1
Custom
2
3
715G4174-P01-000-0010
ODM MODEL
2.POWER
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
D901
FR103
R925
1K 1/8W
C904
0.1uF/275V
C901
1000pF
ZD922
RLZ5.1B
1
2
R900
680K OHM 1/4W
!
R924
150R 1/8W
R915
100K OHM 1% 1/8W
GND1
GND
1
2
D924
SB240
C909
470pF/25V
t
NR901
NTCR
IC903
AZ431AZ-AE1
C936
0.47UF/25V
R918
100 OHM 1/4W
Q903
PMBS3904
C912
1000PF500V
+
C918
680UF25V
R901
680K OHM 1/4W
IC901
LD7552BPS
1
2
3
4
5
6
7
8
GND
COMP
VCC
RT
NC
CS
VCC
OUT
C928
0.01uF
+
C917
680UF25V
R904
300K OHM 1/4W
-
+
BD901
KBP208G
2
1
3
4
R906
NC
CN902
Wire Harness
1
2
3
4
5
6
7
8
9
10
11
12
13
ZD905
RLZ18B
1
2
R902
680K OHM 1/4W
D903
LL4148
!
ZD902
RLZ13B
1
2
C900
0.0022UF
Q901
2SK2645-54MR
R946
150 OHM 2W
+
C903
22uF/50V
CN903
JACK
3
2
1
C930
0.1uF
Wednesday FEB 02,2010
R914
0.47 OHM +-5% 2WS
C938
NC
FB901
BEAD
1
2
R932
300K OHM 1/4W
VAR901
Varistor
DIM
!
ON/OFF
C908
0.22uF/275V
CN901
87G 501 32 S
SOCKET
1
2
3
!
R910
10R 1/4W
R962
100 OHM 1/4W
R930
2.43K OHM 1% 1/10W
R905
NC
F903
NC
L901
30mH
1
4
2
3
R920
100 OHM 1/4W
C935
0.47UF/25V
D923
SB240
!
R926
1K 1/10W 1%
+
C923
470UF M 25V
!
R907
NC
R919
100 OHM 1/4W
C911
0.1uF
F905
0 OHM 1/4W
+
C940
1000UF M 25V
HS3
HEAT SINK(Q901_Q90G6263-3)
1
2
L904
1.0uH
C902
1000pF
L903
1.0uH
!
+12V
+
C907
100uF450V
C932
0.001uF
R909
5.1 OHM 1/4W
+5V
R940
33K 1/10W
!
+5V
C929
1000PF500V
D900
FR107
R908
1-5% 2WS
!
ZD921
RLZ13B
1
2
R938
10K 1/8W
Содержание L2021 WA
Страница 1: ...Lenovo Service Manual L2021W 1 联想显示器维修手册 Brand Lenovo Model L2021 Wide L2021WA ...
Страница 8: ...Lenovo Service Manual L2021W 8 ...
Страница 9: ...Lenovo Service Manual L2021W 9 ...
Страница 10: ...Lenovo Service Manual L2021W 10 ...
Страница 13: ...Lenovo Service Manual L2021W 13 4 3 Electrical Characteristics a TFT LCD module b Backlight unit ...
Страница 14: ...Lenovo Service Manual L2021W 14 4 4 Panel Block Diagroam 4 5 LVDS Connector pin Assignment ...
Страница 26: ...Lenovo Service Manual L2021W 26 7 Explore Views ...
Страница 27: ...Lenovo Service Manual L2021W 27 8 PCB Layout 8 1 MainBoard 715G3327 1 ...
Страница 28: ...Lenovo Service Manual L2021W 28 ...
Страница 29: ...Lenovo Service Manual L2021W 29 8 2 PowerBoard 715G4174 ...
Страница 30: ...Lenovo Service Manual L2021W 30 ...
Страница 31: ...Lenovo Service Manual L2021W 31 8 3 KeyBoard 715G4138 K01 715G4139 K01 ...
Страница 35: ...Lenovo Service Manual L2021W 35 Remove the Lamp connector Remove screws 4 3 Remove the boards ...
Страница 36: ...Lenovo Service Manual L2021W 36 ...
Страница 44: ...Lenovo Service Manual L2021W 44 1 selected ISP RTD2122 as shown in Press the icon to select Note save HDCP key ...
Страница 47: ...Lenovo Service Manual L2021W 47 4 Click Programming started After Programming Appear PASS ...
Страница 49: ...Lenovo Service Manual L2021W 49 ...
Страница 50: ...Lenovo Service Manual L2021W 50 ...
Страница 52: ...Lenovo Service Manual L2021W 52 In normal user mode open the menu to restore factory default values ...