Power Supply - Nokia 446PRO Service Manual

NOTE!
Safety components marked with
must be replaced with original
or approved components only.
All printed boards and the back
cover are also safety components.
C101 C102
M101 C104
470n 2n2
n.c.
FJ0801
275V
400VAC
Q101
C103
C105
2n2
n.c.
400VAC
F101
T6.3A
UC6879
1
C119
2n2
500V
D104
R107
LL4148
464k
C117 R106
100n 46k4
T102
C160 D124
R111
BC857B
10n LL4148
15R
R113
C161
R164 2k2
R165
10n
10k 2k7
C123
1u0
50V
5V
R120
1k0
IC101
C124
UC3843A
4n7
1 8
COMP VREF
12V
R110 R105 R116 2 7
VFB VCC
3k65
10k 10k
3 6 C115
ISENSE OUTPUT
10n
4 5
RT/CT GND
C127
3n3 D123
DZ105
63V
1N4148 18V
R114
C126 1k0 D111
R126
220p
1N5818
220R
SMD SMD 2W
ELECTROLYTIC SMD 1W 3W etc.
POLYCARBONATE
0.25W 0.25W NF
POLYESTHER
POLYPROPYLENE 0.5W 0.5W NF
CERAMIC 1W
DEMA
Q102
R102 R103
4M7 4M7
C107
2n2
400VAC
C108
PTC101 PTC102 C110
D101
3n3
3n3
18R 18R GBU4K
1kV
M102 1kV
FJ1836
-T
C109 C111
C106
R101
NTC101 3n3 3n3
n.c.
1M0 5R 1kV 1kV
C163
R171
56R2 470p
MAIN
POWER
500V
C140
D112
BYV98-200 2200u
R117 R112 25V
0R22 0R22
F102
T3.15A
M103
R172
FM3909
56R2
14
C118
R108 22n 15 D115
464k 630V
7 R142
0R22
16 BYV27-200
D121
n.c. C165
R173
56R2 470p
D106
15
n.c.
500V
D113
R138
6
BYV98-200
0R22
13
T103
STU13NB60
12
D122
RHRD460S
11
5
R121 R122
0R47 0R47
8 10
C128
R125
10u 100R C131
50V 47p
9
1kV
D107
R129
LL4148
470R
D126
RHRD460S
R166
C129
5k6
100n
IC103
PS2501-1L
4 1
3 2
R132
R141 560R
2k7
5V
2-5
R144
1k0
T104
BCR191
T106
SUSPEND
BCR141W 2,5
PRIMARY_Vcc
NOTE: IF VERTICAL FLYBACK IS MISSING FROM MAIN PROCESSOR (PIN 14) AFTER START,
THEN THE MAIN POWER IS SWITCHED OFF.
12V
2-5
D102
4 5 6
RE101 LL4148
QH0074 3 2 1
T101
BCR112W
C113
C112 2n2
C114
330u 400VAC
1u0
385V
50V
15V
3,5
L106
12V
2-5
15u T114
IC104
L103
7812 BCR141W
15u
IN OUT
C141 C142
REF C166
100u 100u
100n
25V 25V
T105
BC807
C164
470p
5,5V
500V L104
15u
R160
-15V
3-5
10R
C148
C159
2200u
100u C157
25V
25V 47u
16V
R109
3R32
9V
R168
3R9
5 HEATER_5V
R134
C120
3R32
R169
2200u
274R
16V
2,5 LED
D125
1N4002
L102
15u
80V
5
C134 C135
100u n.c.
100V
D109
L101
RHRD460S 185V
15u
3-5
C132 C133
R135 47u 47u
154k 250V 250V
R127
11k0
C149
R148
100n 22k
C146
1n0
IC110
R140
TL431
2k26
446F
D103
LL4148
DEMA
2,5
Q104
TO VIDEO
R151 R152
330k 330k
UC7147
1
R153 R154
330k 330k
C150
C162
D127
100n D116
10u
IC108
P6KE200A BYV27-200
400V
TOP223P
1 8
S S(HVRTN)
D117
80SQ045
BYV26C M104
2 7
S S(HVRTN)
FM2586
D119
3 6
1 7
S S(HVRTN)
4 5 2 6
CONTROL DRAIN
R175
D118
10k0
3 8
BAV103 R155
C153 C167
4R7 4 5
R170
10u 680p
1k00
50V
+5V POWER
IC106
PS2501-1L
4 1
C138
3 2
100n
T112 R162
R161 R159
BC857B
1k00
470R 100R
R104
1k0
R156
C116
R163 10k0
22n
22k
R157
10k0
IC107
USB_5V
TL431
R147
1k0
R146
1k0
T111
PREHEAT
2,5
BC369
R145
15V
3,5
10k
DZ101
UNDER 9V1
VOLTAGE
SENSING
NOTE: POWER IS SWITCHED R167
1k0
OFF AFTER 3 SECONDS T113
BCR141W

POWER SUPPLY

ECN
446F006
4
3
Q105
2
1
USB_5V
2,4,5
L105
15u
2-5 5V
C137
C154
100u
2200u
25V
16V
M1
FM2586
N109 GND
2 6
N104 N49
1 7
PGND GND
4 5
N99 N53
3 8
2,5 RESET
T108
UVLO
BC847B
2,4,5
T107
BCR141W
SMA241H 2
SB5218 02.00 Page 7