Philips 22PFL2908H/12 Service Manual page 34

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Circuit Diagrams and PWB Layouts
10-2-3
B03, Power - Stepdown
Power - Stepdown
B03
BTB
20
19
3V3_VCC
18
17
3V3_VCC
3V3_STBY_1
16
15
24V_VCC_AU
12V_STBY
14
13
12V_STBY
power_pin11
12
11
12V_STBY
10
9
5V_STBY
DIMMING
8
7
6
5
BACKLIGHT_ON/OFF
power_pin3
4
3
power_pin1
2
1
S115
CN5
S34
power_pin11
5V_VCC
S33
12V_STBY
S35
5V_VCC
S36
12V_STBY
CN30
power cable
2
1
3V3_VCC
4
3
3V3_VCC
3V3_STBY_1
6
5
24V_VCC_AU
12V_STBY
8
7
12V_STBY
power_pin11
10
9
12V_STBY
12
11
5V_STBY
14
13
DIMMING
16
15
BACKLIGHT_ON/OFF
power_pin3
18
17
power_pin1
20
19
PW03_PW04_PW07
PW05_IPS60_IPS70_Adaptor
5V_STBY
C1111
47u
16V
R2124
NC
12V_STBY
2
33k
1
R296
12V_VCC
2
1
1
33k
SW2
R119
Q46
STBY_ON/OFF_NOT
2
10k
1
BC848B
W_ADAPTER
5
4
3
JK7
TP73
2
TP74
1
VEM1.1E LA
10.
R35
1
10k
2
STP1
R34
1
10k
2
U17
C197
TPS54329E
2
10n
1 VBST
8
F1
16V
1
SS
2
7
12V_VCC
1
2
VIN
EN
60R
3
6
C1144
C353
SW
VREG5
C1178
C215
4
5
10u
220n
220n
10u
GND
VFB
16V
25V
25V
16V
COMMON
C1146
R2126
3R3
S211
3n3
L18
STBY_ON/OFF
50V
nc
10u
S212
STBY_ON/OFF_NOT
C1148
24V_VCC_AU
10u
10V
S261
12V_VCC
12V_STBY
12V_CTRL
S262
100n
C1152
C810
S299
16V
10u
C809
100n
C1205
100nC1206
16V
10u
STP2
16V
16V
16V
R2064
2
1
1
2
10k
10k
R2065
1 EN
8
4u7 6x6 olacak ÜA
TPS_CNTRL
VIN
U46
C803
L27
10u
2
7
VFB
VBST
16V
VFB
TPS54528
100n
C808
3
6
VREG5
SSW
10u
10V
4
5
VSS
GND
SK24
C807
1u
16V
D168
C1147
R2127
3R3
PW03_PW04_PW07
3n3
5V_STBY
PW06_IPS19
50V
PW05_IPS60_IPS70_Adaptor
CCFL INVERTER SOCKET
PW06_IPS19
TP5
1
TP6
1
5V_VCC
TP8
1
12V_INV
C342
C1172
220u
10u
TP7
1
6V3
10V
5V_VCC
R109
2
47R
100nC1153
16V
NC
S27
R122
1
10k
2
R340
Q12
1
1k
2
BC848B
C805
220n
Q11
10V
BC848B
EN 34
C136
C1203
C1199
100nC1204
1
2
10u
10u
100n
16V
10V
F194
10V
C355
8
5V_VCC
1
2
PVIN
PGND
NC
60R
U49
100nC1200
1
2
7
AVIN
5n6
16V
C357
TLV62065
50V
6
R165
MODE
AGND
22k
470n
5
EN
6V3
COMMON
1V2_MT5820
1V2_MT5820
C216
C689
C1110
C1179
100n
C1150
10u
10u
10u
2u2
16V
10V
10V
10V
6V3
33p
nc
VFB
12V_STBY
C1190
R2074
R2066
R2073
120k
4k7
22k
S273
5V_CTRL
VDD_AUDIO
S3
S216
5V_VCC
S138
5V_STBY
S2
C1170
100nC1151
10u
SW1
16V
10V
R118
MOSFET_CONTROL
2
10k
1
S64
3V3_VCC
3V3_AVCC
3V3_AVCC
GND1
COMMON
12V_VCC
R42
2
1
10k
S29
R23
Q6
5V_VCC
2
10k
1
S28
BC848B
R24
2
10k
1
R60
3V3_STBY_1
1
10k
2
!
STBY_ON/OFF
R61
2
1
10k
2
FS4
12V_STBY
7A/32VDC
!
FS3
12V_INV
7A/32VDC
STBY_ON/OFF
12V_STBY
STBY_ON/OFF_NOT
back to
2013-Oct-18
div. table
3V3_VCC
C1202
C1201
100n
1
10u
16V
L28 1u
6V3
1
TP222
2
SW
Q3
3V3_VCC
C1198
R2142
C224
C279
3
220k
10u
10u
10V
10V
R2143
22p
4
FB
470k
Q1
R2141
5V_STBY
150k
R99
2
4k7
1
S215
S214
FS2
12V_VCC
7A/32VDC
4A
R108
1
47R
2
PW06_IPS19
PW05_IPS60_IPS70_Adaptor
Q24
S66
BC848B
3V3_VCC
C1094
10u
10V
S70
8
1
5V_VCC
PVIN
PGND
U13
7
2
AVIN
SW
TLV62065
6
3
VDRAMSUP
MODE
AGND
VDRAMSUP
5
4
EN
FB
COMMON
R75
TPS_CNTRL
47R
VDRAMSUP
nc
R63
1 POK
8
2
4k7
1
GND
nc
U6
R69
2
7
C3
2
4k7
1
EN
FB
10u
VDRAMSUP
APL5910
VDRAMSUP
3
6
10V
VIN
VOUT
4
5
VCNTL
NC
1V5_AVCC
STBY_ON/OFF_NOT
TP3
1
TP4
1
3
TP12
1
TP24
Q2
1
BC848B
TP13
1
1
TP15
1
TP10
1
TP18
1
TP21
1
S5
MOSFET_CONTROL
BOARD VOLTAGES
S1
NC
Power - Stepdown
B03
S63
3V3_STBY_1
BC848B
C1149
10u
COMMON
BC848B
F190
10V
3V3_STBY
1k
R321
2k7
C362
47u
16V
C1098
10u
L15
1u
6V3
1V5_VCC
1V5_VCC
C1101
R796
75K
R318
22p
200k
R660
180k
1V5_VCC
R77
R36
22k
1k
R96
12k
1V5_VCC
C2
C4
10u
10u
10V
10V
5V_STBY
3V3_STBY
12V_VCC
VDD_Lineout
5V_VCC
3V3_AVCC
1V1_MT5135
1V5_VCC
1V2_AVCC
R1
2012-12-17
17mb82s-R1
19560_506 _130912.eps
130912

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