Service manual
Dell W2306C
99
12.2 Power Board
DELL 26" TV A
715L1624-G
Custom
12Saturday, July 02, 2005
Title
Size Document Number Rev
Date: Sheet
of
+
C955
10uF/50V
D914
LL4148WP
5VS
R998
100 1/8W
Q923
PMBS3904
32
1
R907
68K 1/10W
R112
4.7M 1/8W
R915
330K 1/8W
AUDIO
HS7
H/S BD901
1
2
C953
0.22uF/25V
R929
20K 1/10W
D915
LL4148WP
AC INLET 3
WIRE L/N
1
2
3
B+
D913
LL4148WP
12VIN
絋粄竲禯
D916
BA159G
C936
0.1uF
R904
620K 1/8W
PS
51K==>6.0A
DIP
56K==>5.4A
+
C933
1000uF/35V
C971
0.1uF
R905
0 1/8W
24VS
R919
10K 1/10W 1%
VCC2
S_PROTECTION
C914
0.1uF
R965
100K 2W
L903
120UH
R931
0.27 3W
VCC3
VCC2
VCC4
R105
1K 1/10W
F901
5A/250V
R946
15K 1/10W 1%
IC912
PC123FY2 4P
12
43
F902
R30-250(30V/2.5A)
CN901
3P/3.96mm
1
2
3
AC INLET 4
TUBE
1
2
3
N.C C905
100PF/1KV
R959
120K 1/16W
POWER CTRL
S_PROTECTION
D101
SR54
+
C920
22uF/50V
12V
12V
C960
0.1uF
C923
82PF
R943
0 1/10W
R910
20K 1/10W
R993
1K 1/10W
+
C102
1000uF/35V
N.C C901
1000PF/250V
R914
10K 1/10W
t
NR901
5A/3
1 2
R903
620K 1/8W
N.C C902
1000PF/250V
D919
LL4148WP
R939
47 /1W
HS3
H/S D920
1
2
-+
BD901
D10XB60
1 4
32
D923
1N4148
R988
1K 1/10W
D921
LL4148WP
22V
R944
10K 1/10W
C111
0.01F/630V
R979
10K 1/6W
Q922
PMBS3904
+
C935
470uF/35V
R976
470 1/6W
C923
shift vally
翴
Q907
AO4411
1
2
3
4
8
7
6
5
S1
S1
S1
G1
D1
D1
D1
D1
C916
220pF
C922
0.0022uF/1KV
HS1
H/S Q901
1
2
R912
0.15 3W
D903
LL4148WP
51K==>5.7A
SMD
56K==>5.0A
R954
51K 1/16W
R984
1K 1/10W
N.C C921
0.01UF/1KV
+
C932
1000uF/35V
C950
1000PF/1KV
R909
22 1/10W
R973
82K 1/10W
R952
1K 1/16W
HS4
H/S D910
1
2
R956
1K 1/16W
Demg
筿瑈禬筁
3mA
穦玂臔
SCR901
2N5060
31
2
IC922
KIA431
+
C924
47uF/50V
Q910
PMBS3906
32
1
+
C951
47uF/50V
GND4
GND
1
GND2
GND
1
CN925
4P/2.0mm
1
2
3
4
5VS
R906
10K 1/10W 1%
5V
N.C R996
10K 1/10W
R955
1K 1/16W
B+
+
C957
1000uF/16V
C966
0.1uF
C973
0.1uF
AC INLET 1
AC INLET
1
2
3
D925
BA159G
+
C956
10uF/50V
audio power
R911
470 1/10W
VCC1
Demag The auxiliary FLYBACK signal
ensures discontinuous operation and
offers a fixed
overvoltage detection level of 7.2 V.
D909
LL4148WP
R930
100 1/10W
N.C R921
10K 1/8W
CN922
10P/2.0mm
1
2
3
4
5
6
7
8
9
10
RV901
Varistor
D902
YG972S6R
R950
1K 1/16W
R990
43K 1/10W 1%
R978
0 1/10W
22V
C915
0.01uF
+
C958
1000uF/16V
R900
390K 1/8W
L905
3.5UH
C944
0.1uF
R947
1.5K 1/10W 1%
IC902
NCP1377
1
2
3
4
8
7
6
5
Demag
FB
CS
GND
HV
N.C
Vcc
Drv
R927
10K 1/10W
VFB
R953
1K 1/16W
D924
1N4148
IC910
PC123FY2 4P
12
43
ZD909
RLZ15B
12
R918
18K 1/10W 1%
L101
45UH
+
C931
1000uF/35V
Q915
PMBS3904
32
1
C962
0.1uF
C943
0.1uF
R902
390K 1/8W
Q101
PMBS3904
32
1
IC111
NCP305
1
2 3
4
OUT
VIN N.C
GND
ZD905
MTZJ15B(13.89~14.62V)
1 2
ZD903
MTZJ27B(24.97~26.26V)
1 2
RJ901
8m
1 2
IC921
KIA431
FP130
IC931
2
3
4
15
Vss
Vip
Vin
outVcc
R901
390K 1/8W
This IC uses a CMOS device with high dielectric
strength (30V) to implement low power consumption.
L901
1 4
2 3
CN923
12P/2.0mm
1
2
3
4
5
6
7
8
9
10
11
12
C918
1000PF/50V
R922
1K 1/10W
R969
0.82 2W
R971
1K 1/10W
12V
D907
BA159G
R102
1.5K 1/10W
C927
470PF
4.94~5.20V
R970
5R1 1/8W
C969
0.1uF
+
C913
22uF/50V
C911
1uF/450V
R991
470 1/8W
D918
UF4003
R977
2K 1/10W
R995
1K 1/10W
C963
0.1uF
D920
FMW-2156
+
C941
470uF/25V
C930
1000PF/1KV
ZD906
RLZ5.6B
1 2
C904
1000PF/250V
R981
10K 1/10W 1%
Q912
PMBS3906
3 2
1
R999
100 1/8W
R908
0 1/10W
R916
330K 1/8W
T901
ER4224 Lp=?UH
9
8
6
5
1 11
12
10
15
16
14
13
7
3
R920
100 1/8W
C964
0.1uF
R980
1K 1/10W
D908
LL4148WP
R942
2K 1/10W
AC INLET 2
WIRE GREEN
1
2
3
R985
10K 1/10W
PS
C970
0.1uF
ZD910
RLZ20B
1 2
R932
4.7K 1/10W
120K==>2.7A
150K==>2.2A
C967
0.1uF
Q913
PMBS3904
32
1
S_PROTECTION
R958
1K 1/16W
R972
1K 1/10W
Q914
PMBS3906
32
1
L904
PFC CHOKE ERL28
10
2
8 3
5
6
FOR BACKLIGHT 24V/4A
R983
10K 1/10W 1%
R925
47K 3W
R994
1K 1/10W
IC903
STR-A6252
8
7
54
2
1
3
D2
D1
VCCFB
FM
OCP
GND
C101
0.1uF
TVS901
P6KE12A
1 2
C103
0.1uF
Q916
DTC144WKA
32
1
C938
1000PF/1KV
R103
1K 1/8W
+
C959
470uF/16V
L902
1 4
2 3
D910
FMB29L
HS5
H/S D931
1
2
R974
18K 1/10W
R987
33K 1/10W
R945
0 1/10W
C925
0.1uF
L907
3.5UH
C961
0.1uF
5V
24V
R997
100 1/8W
+
C939
1000uF/25V
C917
0.47uF/25V
SI-8120
IC101
5
3
4
1 2
S.S
GND
VOS
VIN SWout
C908
0.47uF/250V
12V
Q902
STP10NK70ZFP
IC901
FA5500AN
1
2
3
4
8
7
6
5
FB
COMP
MUL
IS
VCC
OUT
GND
ZCD
CN924
9P/2.0mm
1
2
3
4
5
6
7
8
9
FB101
BEAD
FP130
IC932
2
3
4
15
Vss
Vip
Vin
outVcc
C926
470PF
R989
JUMPER
D901
1N5406
R957
1K 1/16W
VCC2
D906
BA159G
C112
0.1uF
ZD904
MTZJ24B(22.61~23.77V)
1 2
D917
BA159G
C952
0.1uF
R113
4.7M 1/8W
AUDIO
NCP1377 VCC
13.8 ON
20V
籹祘
R986
1K 1/10W
T902
EFD25/ Lp=?UH
9
5
4
3
1 6
7
10
R928
22 1/10W
VCC1
C954
4700PF/25V
+
C928
22uF/50V
D932
FME-210B10A/150V
Q921
PMBS3904
ZD902
RLZ5.1B
1 2
IC911
PC123FY2 4P
12
43
Q901
STP20NM50FP
L906
3.5UH
C910
1uF/450V
23" R101,R102
150 C907
120UF/450V C102
1000UF/25V ZD904
MTJZ15B
R114
220K 1/10W
R917
330K 1/8W
R101
1.5K 1/10W
HS2
H/S Q902
1
2
R104
10K 1/10W
24VIN
N.C C906
100PF/1KV
R992
470 1/8W
C900
1000PF/250V
RJ902
8m
1 2
S_PROTECTION
POWER CTRL
24V
D922
LL4148WP
R111
4.7M 1/8W
R982
200K 1/10W
C968
0.1uF
R951
1K 1/16W
VCC3
FA5500A: 11.5V ON / 9V OFF
FA5501A:13V ON / 9V OFF
VCC Increasing Level at which the
Current Source Turns.Off 6 VCCON
11.6 12.5 13.7 V
CN921
14P/2.0mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R941
470 1/6W
GND3
GND
1
24VIN
HS6
H/S IC903
1
2
ZD901
RLZ15B
1 2
R926
20K 1/10W
GND1
GND
1
C965
1000PF/1KV
R940
47 /1W
D931
FME-210B10A/150V
C972
0.1uF
Q102
PMBS3904
32
1
C912
1uF/450V
+
C907
PX 150uF/450V 22*41
12VIN
C903
1000PF/250V
24VS