Power Board - Dell W2306C Service Manual

12.2 Power Board

VCC2
This IC uses a CMOS device with high dielectric
strength (30V) to implement low power consumption.
FA5500A: 11.5V ON / 9V OFF
FA5501A:13V ON / 9V OFF
D901
1N5406
L904
PFC CHOKE ERL28
D902
YG972S6R
C911
1uF/450V
R903
R907
620K 1/8W 68K 1/10W
L903
120UH
R904
620K 1/8W
C910
+
1uF/450V R905 C913
N.C C905 0 1/8W C914 22uF/50V
0.1uF FA5500AN
100PF/1KV
2 3
BD901
D10XB60
R906 C915
10K 1/10W 1% 0.01uF R914
100PF/1KV 10K
N.C C906
C916
220pF
D925
VCC2
2 3
L902 R111 R112
BA159G 4.7M 1/8W 4.7M 1/8W
1 4
C111
0.01F/630V
C903 C904
1000PF/250V 1000PF/250V
C912
1uF/450V
VCC1
2 3
L901
1 4
C908
0.47uF/250V IC903
STR-A6252
R900 R902
390K 1/8W 390K 1/8W
R901 R969
390K 1/8W 0.82 2W C953 C954
0.22uF/25V
4700PF/25V
RV901
Varistor
NR901
F901
5A/3
5A/250V
R973
82K 1/10W
CN901
3P/3.96mm
R974
18K 1/10W
AC INLET 1
AC INLET 2 AC INLET 3 AC INLET 4
AC INLET
WIRE GREEN WIRE L/N TUBE
Q910
R920
2 3
VCC3
PMBS3906
100 1/8W
NCP1377 VCC
10K 1/8W
13.8 ON
N.C R921
20V籹祘
+
C920 ZD901
22uF/50V RLZ15B
R922
B+
1K 1/10W Demag The auxiliary FLYBACK signal
ensures discontinuous operation and
offers a fixed
overvoltage detection level of 7.2 V.
POWER CTRL
+
N.C C921
C907
0.01UF/1KV
PX 150uF/450V 22*41
R915
330K 1/8W
R908 D903
0 1/10W LL4148WP
C923 shift vally翴
R909
22 1/10W Q901
Demg筿瑈禬筁3mA穦玂臔
STP20NM50FP C923
R910 82PF
IC902
20K 1/10W R916 VCC3
330K 1/8W 1 8
Demag HV
2 7
FB N.C
R911 3 6
CS Vcc
470 1/10W
C926 4 5
GND Drv
IC901 R912 R917 470PF
0.15 3W 330K 1/8W
NCP1377 C924
C925
C918 0.1uF
1000PF/50V
R918
18K 1/10W 1%
1/10W R919
10K 1/10W 1%
C927
470PF
VCC Increasing Level at which the
C917
IC111 Current Source Turns.Off 6 VCCON
0.47uF/25V
1 4
11.6 12.5
OUT GND
2 3
VIN N.C
R113
4.7M 1/8W NCP305
C112
0.1uF
R114 D909
220K 1/10W LL4148WP
R999
100 1/8W
R997 C928
+
B+ 100 1/8W
22uF/50V
T902 R998
EFD25/ Lp=?UH 100 1/8W L907
D920 C965 3.5UH
1 6
1000PF/1KV
R965 7
C950
100K 2W
1000PF/1KV
D916
FMW-2156
+ +
9 C957
BA159G D917 10 1000uF/16V C958
1000uF/16V
BA159G
3
D918 R970
UF4003 5R1 1/8W
4
C952 C951 5
+
47uF/50V
0.1uF
R976
470 1/6W
VFB
R979
10K 1/6W
C963
IC911 R977 0.1uF
PC123FY2 4P
2K 1/10W
0 1/10W
R978
C962
0.1uF
R980 1K
R971 1/10W
IC922
1K 1/10W
KIA431
D919
C955 R982
+
LL4148WP
10uF/50V
200K 1/10W
R972
HS3
HS1
1K 1/10W
1
Q912 1 2
PMBS3906 2
HS7
1 H/S D920
H/S Q901 1
2
HS4
HS2
1 H/S BD901
1 2
1 Q913 2
PMBS3904
HS5 HS6
H/S D910
C956 C972 H/S Q902
+
10uF/50V 0.1uF 1 1
2 2
H/S D931 H/S IC903
N.C C901
1000PF/250V
N.C C902
1000PF/250V
C900
1000PF/250V
FME-210B10A/150V
D931
T901
ER4224 Lp=?UH
8 16
15
7 14 FME-210B10A/150V
R925 D932
47K 3W 6
C922
D906 D907
0.0022uF/1KV BA159G BA159G 5 9
R926
3
C930
10
20K 1/10W 13
12
R927 1 11 1000PF/1KV
10K 1/10W
D908
LL4148WP D910
R928
22 1/10W Q902
STP10NK70ZFP
FMB29L
C938 R939
+ C973 ZD910 R929
RLZ20B
0.1uF 20K 1/10W 1000PF/1KV 47 /1W
47uF/50V
R930
100 1/10W
R931
0.27 3W
13.7 V
R941
VCC4 470 1/6W
4.94~5.20V
R932 ZD902
RLZ5.1B
4.7K 1/10W
R942
5VS
2K 1/10W
IC910
PC123FY2 4P
0 1/10W
C943
R943
0.1uF
+ C960
C959 0.1uF
470uF/16V ZD906 IC921
KIA431
RLZ5.6B
D921
LL4148WP
VCC1
R981
VCC2
10K 1/10W 1% R987
Q914
33K 1/10W
2 3 POWER CTRL
PMBS3906
N.C R996
R984 10K 1/10W D922
1K 1/10W LL4148WP
R985
R986
ZD909
R983 10K 1/10W 1K 1/10W
10K 1/10W 1% 2 1
RLZ15B
IC912
PC123FY2 4P
DTC144WKA
Q916 Q915
1 PMBS3904
1
C966 C964
0.1uF 0.1uF
Q923
PMBS3904
GND4 GND2
GND1 GND3
1 1
1 1
GND GND
GND GND
99
24VS
24VIN
L905
RJ901
1
C931 C933 3.5UH C935
+ + +
C932 470uF/35V
+
1000uF/35V 1000uF/35V
1000uF/35V
R950 R951
1K 1/16W 1K 1/16W
R940
IC931
5
Vcc out
47 /1W
FP130
24V
51K==>5.7A
SMD
56K==>5.0A
12VIN
TVS901
L906
P6KE12A
RJ902
1
3.5UH
C939 C941
+ +
470uF/25V
1000uF/25V
R989
JUMPER
24VIN 12V
22V
R990
R944
10K 1/10W 43K 1/10W 1%
C944
0.1uF
ZD903
MTZJ27B(24.97~26.26V) ZD904 ZD905
R946 MTZJ15B(13.89~14.62V)
15K 1/10W 1% MTZJ24B(22.61~23.77V)
R945
D913 D914 D915
LL4148WP LL4148WP LL4148WP
0 1/10W
R947
1.5K 1/10W 1%
S_PROTECTION
5V
Q907
AO4411
R104 10K
1/10W
24VS
1 8
audio power
S1 D1
2 7 IC101
S1 D1
3 6 1
S1 D1 VIN SWout
4 5 C961
G1 D1
SI-8120
0.1uF
VOS
Q101
PMBS3904
C101
S_PROTECTION
1
0.1uF
R991
470 1/8W
R994
1K 1/10W Q102
R105 1K
PMBS3904 1/10W
1
AUDIO
SCR901
2N5060 2
R988
PS
CN924
1K 1/10W
PS 1
2
R993
3
1 C967 R995 4
0.1uF 1K 1/10W 5
5V
1K 1/10W 6
7
8
C968 R992 9
5VS
0.1uF 470 1/8W
9P/2.0mm
Dell W2306C
FOR BACKLIGHT 24V/4A
24V
CN921
1
2 2
3
8m 4
C936 5
0.1uF 6
7
8
9
10
11
12
R952 13
1K 1/16W 14
14P/2.0mm
R953
CN922
1 1K 1/16W Q921
PMBS3904
1
R954 2
51K 1/16W C970 3
0.1uF 4
5
51K==>6.0A 6
7
DIP
D923 8
56K==>5.4A 1N4148 9
10
S_PROTECTION
2 10P/2.0mm
12V
8m
CN923
1
2
3
AUDIO
4
5
6
7
8
9
CN925
10
11
F902 1 12
C969
2
R30-250(30V/2.5A)
3
4 12P/2.0mm
絋粄竲禯
0.1uF
4P/2.0mm 12V
12V
12VIN
R956
R955 1K 1/16W R957
1K 1/16W 1K 1/16W
IC932 R958
5 1 1K 1/16W Q922
Vcc out
PMBS3904
R959
120K 1/16W C971
FP130
0.1uF
120K==>2.7A
D924
1N4148
150K==>2.2A
S_PROTECTION
22V
L101 FB101
45UH BEAD
2
R101
4 1.5K 1/10W
R102
1.5K 1/10W C102 C103
+
D101
1000uF/35V 0.1uF
R103 SR54
1K 1/8W
23" R101,R102
150 C907
120UF/450V C102
1000UF/25V ZD904
MTJZ15B
Title
715L1624-G
Size Document Number Rev
Custom DELL 26" TV A
Date: Saturday, July 02, 2005 Sheet 1 of 2