Sharp LC-24LE240E Service Manual page 70

LC-24LE240
POWER_1 & LNBP Diagram
1
F277
I
1V2_VCC VDDC_1V2
60R
C1081 C997 C1005 C1070
10uF 100nF 100nF 100nF
6V3 16V 16V 16V
F271
A
3V3_STBY AVDD_3V3
60R
C1030 C1024 C1025 C1022
10uF 100nF 100nF 100nF
6V3 16V 16V 16V
2V5_VCC
F272
H
1V8_VCC AVDD_DDR
60R
C990
100nF 100nF
22uF
16V 16V
6V3
C1004 C1001
F270
3V3_VCC VDD_3V3
60R
C1029 C1014
10uF 100nF
6V3 16V
B
G
POWER SOCKET
20 19
3V3_VCC 18 17 3V3_VCC
F
3V3_STBY 16 15
VDD_AUDIO_PWR
12V_VCC/STBY 14 13 12V_VCC/STBY
C
5V_VCC 12 11 5V_VCC
10 9 5V_STBY
12V_VCC/STBY
DIMMING
8 7
6 5 BACKLIGHT_ON/OFF
4 3 STBY_ON/OFF
E
S7
2 1
CN706
S8
VDD_AUDIO_PWR
D
D
S10
12V_VCC/STBY
12V_VCC
S19
12V_STBY
C
S21
12V_VCC/STBY
12V_VCC
E
S22
12V_STBY
B
F
A
1
1 2 3
2 3
F274
2V5_VCC AVDD_2V5_PGA
60R
C1007
100nF
16V
AVSS_PGA
60R 402 ferrite secilecek
F305
AVDD2V5_ADC
1k
C1028 C1009 C1223
10uF 100nF 100nF
6V3 16V 16V
F306
AVDD2V5_REF
1k
C1008 C1224
100nF 100nF
16V 16V
F307
AVDD2V5_AUD
1k
C1221
100nF
F308 16V
AVDD2V5_MOD
1k
C1222 C1225
100nF 100nF
16V 16V
PW04 LOW POWER Option
5V_STBY
MEGA_DCR_OUT
NC
3
R1165
S16
Q189
BACKLIGHT_DIM
1 4k7 2 2
BC848B
C838
1
S18
MEGA_DCR_IN
1 2
220pF
NC
50V
F302
3V3_VCC
1 2
60R
F289
1 2
60R
F288
5V_VCC
1 2
60R
F290
12V_VCC 1 2
60R
NC
R1693
S82
1 2 2 10k 1
C1042
3
R1685 100nF
Q194
2 10V
PANEL_VCC_ON/OFF 2 10k 1
BC848B
1
2 3
4 5 6 7
4 5
U1 AP211H
LM1117
3 2
IN OUT 3V3_STBY
ADJ VOUT
1 4
DIMMING CIRCUIT
1
R1158
Q193
4k7
1 2
2 BC858B
R1761
C839
100R
3
8 1
R1
1 2
220pF
7 2
R2 R1679
50V
100R DIMMING
6 3
R3
5 4
R4
3
R1166 C774
Q188
2 10uF
1 4k7 2
BC848B
10V
C840
1
1 2
220pF
50V
PANEL SUPPLY SWITCH
PANEL_VCC
3V3_STBY
R1725
47R
1 2
1
3
R1748
3 Q191
STBY_ON/OFF_NOT 1 4k7 2 2
BC848B
Q190
2
BC848B
1
2
1
1
4 5
8 9 10
70
6 7
1uF
6V3
C974
R1649
33k
2 1
10k
1 2
R1631
SHORT CCT PROTECTION
3
R1727
2 33k 1
R1750
22k
3V3_STBY
3V3_VCC
R1635
10k
2 1
3
5V_VCC
3V3_TUNER
1
R1636
Q180
1 10k 2
BC858B 2 3
Q178 3
C971
3
2
100nF R1638 R20
10V 1 2 3V3_STBY
1 10k 2 10k 1 2
BC848B
Q211
1
LM809
3
2 R1973
100R
BC848B
1
LNB CIRCUIT
1N4001
C70 10V C69 D7
470nF 220uF 1uF
C65
25V 50V
L2 27
V_UP VO_TX
4
12V_VCC LX EXTM
10uH 19
VCC VO_RX
18
12V_VCC VCC_L PDC
6
SDA_SYS SDA DSQIN
9
SCL_SYS SCL
14
C13 TTX NC_1
29
220nF RSV_1 NC_2
30
25V RSV_2 NC_3
U6 NC_4
NC_5
LNBH23L
NC_6
NC_7
NC_8
NC_9
NC_10
NC_11
NC_12
NC_13
R1677 3V3_VCC
STBY_ON/OFF
4k7 2
C14
220nF
25V
VESTEL
PROJECT NAME :
POWER_1&LNBP
SCH NAME :
DRAWN BY : <YOUR NAME HERE>
6 7
11 12 13
8
A
B
VDD_AUDIO_PWR
12V_VCC
C
ADAPTOR OVER VOLTAGE PROTECTI
R40
20k 12V_STBY
R21
10k
3
U7 VCC
RST GND
2 1
D
22
13
21
LNB_OUT
11
C12
12
220nF
25V
1
2
E
3
7
8
16
17
23
24
25
26
31
32
F
17mb62-2v3 A3
8
T. SHT:
27-10-2011_09:04
8
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