DOWNLOAD Sharp LC-22LE240K Service Manual ↓ Size: 19.72 MB | Pages: 88 in PDF or view online for FREE

Model
LC-22LE240K
Pages
88
Size
19.72 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-22le240k.pdf
Date

Sharp LC-22LE240K Service Manual ▷ View online

25
LC-22LE240
3.3.2.
Operating Specifications
3.4. Pinning
26
LC-22LE240
4. POWER STAGE
The DC voltages required at various parts of the chassis and panel are provided by a 
main power supply unit. MB62 chassis can operate with IPS60, IPS16, IPS17, PW26, 
PW27 as main power supply and also with 12V adaptor. 
CN706 is used for IPS60, IPS16 and IPS17 and CN1 is used for PW26 and PW27.
JK9 is used for the adapter option and also CN705 inverter socket or DB32 chassis with 
CN706 is used to supply backlight.
The power supplies generate 18V, 12V, 5V, 3,3V and 12V, 5V, stand by mode DC 
voltages. Power stage which is on-chassis generates 5V, 3V3 stand by voltage and 12V, 
8V, 5V, 3V3, 2.5V, 1,8V and 1,2V supplies for other different parts of the chassis. Chassis 
block diagram is indicated below.
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¾´±½µ ¼·¿¹®¿³ ·­ ·²¼·½¿¬»¼ ¾»´±©ò
AVDD2V5_REF
AVDD2V5_AUD
AVDD2V5_MOD
F305
1k
F307
1k
1k
F308
100nF
16V
C1221
12V_VCC
12V_VCC/STBY
12V_STBY
12V_VCC
16V
100nF
C1222
C69
1uF
50V
220uF
C65
10V
3V3_VCC
3V3_STBY
S8
S7
VDD_AUDIO_PWR
VDD_AUDIO_PWR
12V_STBY
12V_VCC/STBY
S10
S19
S21
S22
1uF
C1128
25V
CN706
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
10k
R1685
1
2
3V3_VCC
4k7
R1678
1
2
R1679
100R
100R
R1973
3V3_VCC
DIMMING
BACKLIGHT_ON/OFF
5V_STBY
5V_VCC
STBY_ON/OFF
16V
100nF
C1022
1k
F306
6V3
10uF
C1081
F272
60R
BC848B
Q194
1
2
3
Q193
BC858B
1
2
3
Q211
BC848B
1
2
3
60R
F302
1
2
3V3_VCC
4k7
R1748
1
2
BC848B
Q188
1
2
3
MSD9WB9PT-2
U5
H15
H16
H17
J14
J15
J16
J17
H14
K14
N7
N8
P7
P8
T8
R7
R8
U8
V8
E8
F8
G8
G9
E9
F9
J8
H8
G16
G17
G15
E15
E16
E17
F16
F17
K9
L9
M9
N9
P9
R9
D10
E10
F10
G10
H10
J10
K10
L10
M10
N10
P10
R10
D11
E11
F11
G11
H11
J11
K11
L11
M11
N11
P11
R11
D12
E12
F12
G12
H12
J12
K12
L12
M12
N12
P12
R12
D13
E13
F13
G13
H13
J13
K13
L13
M13
N13
P13
R13
D14
E14
L14
M14
N14
P14
R14
D15
K15
L15
M15
N15
P15
R15
D16
K16
L16
M16
D17
K17
L17
M17
K18
L18
M18
W2
W3
V4
V5
V6
D9
D18
GND87
GND86
GND85
GND84
GND83
GND82
GND81
GND80
GND79
GND78
GND77
GND76
GND75
GND74
GND73
GND72
GND71
GND70
GND69
GND68
GND67
GND66
GND65
GND64
GND63
GND62
GND61
GND60
GND59
GND58
GND57
GND56
GND55
GND54
GND53
GND52
GND51
GND50
GND49
GND48
GND47
GND46
GND45
GND44
GND43
GND42
GND41
GND40
GND39
GND38
GND37
GND36
GND35
GND34
GND33
GND32
GND31
GND30
GND29
GND28
GND27
GND26
GND25
GND24
GND23
GND22
GND21
GND20
GND19
GND18
GND17
GND16
GND15
GND14
GND13
GND12
GND11
GND10
GND9
GND8
GND7
GND6
GND5
GND4
GND3
BYPASS
AVDD_DDR_4
AVDD_DDR_3
AVDD_DDR_2
AVDD_DDR_1
AVDD_DDR_0
AVDD_LPLL
VDDP1
VDDP0
AVDD_EAR33
AVDD_AU33
AVDD_CVBS33_1
AVDD_CVBS33_0
AVDD_DMPLL
AVDD_ALIVE_2
AVDD_ALIVE_1
AVDD_ALIVE_0
PGA_VCOM
AVDD_PGA25
AVDD_MOD25_1
AVDD_MOD25_0
AVDD_AU25
AVDD_REF25_1
AVDD_REF25_0
AVDD_ADC25_1
AVDD_ADC25_0
AVDD_126
DVDD_DDR
VDDC6
VDDC5
VDDC4
VDDC3
VDDC2
VDDC1
VDDC0
6
12V_VCC
L2
10uH
R18
10k
4k7
R41
2k2
R42
27-10-2011_09:04
POWER_1&LNBP 
<YOUR NAME HERE>
17mb62-2v3
8
7
6
5
4
3
2
1
A
B
C
D
E
F
A X M
1
2
3
4
5
6
7
8
A
B
C
D
E
F
A3
PROJECT NAME :
VESTEL
SCH NAME :
DRAWN BY :
T. SHT:
VDDC_1V2
C68
50V
15nF
15k
R43
C12
220nF
25V
D7
1N4001
LNB_OUT
C70
470nF
25V
3V3_VCC
R19
10k
F295
1k
SK24
D8
C13
220nF
25V
16V
C997
100nF
SDA_SYS
SCL_SYS
3V3_VCC
100nF
16V
C1005
C14
25V
220nF
C1070
16V
100nF
C1004
16V
100nF
LNBH23L
U6
27
4
19
18
6
9
14
29
30
22
13
21
11
12
1
2
3
7
8
16
17
23
24
25
26
31
32
10
15
28
5
20
A_GND
P_GND
I_SEL
BYP
ADDR
NC_13
NC_12
NC_11
NC_10
NC_9
NC_8
NC_7
NC_6
NC_5
NC_4
NC_3
NC_2
NC_1
DSQIN
PDC
VO_RX
EXTM
VO_TX
RSV_2
RSV_1
TTX
SCL
SDA
VCC_L
VCC
LX
V_UP
12V_VCC
S82
1
2
R1636
10k
1
2
10k
R1635
1
2
3V3_TUNER
12V_VCC
3V3_VCC
VDD_3V3
1N5819
D6
5V_VCC
DISEQC_OUT
R1750
22k
VDD_AUDIO_PWR
10k
R1631
1
2
16V
100nF
C1009
10uF
10V
C774
C974
1uF
6V3
AVDD_DDR
AVDD_3V3
AVSS_PGA
AVDD_2V5_PGA
AVDD2V5_ADC
BAW56
D184
1
2
3
10k
R1639
1
2
BC848B
Q191
1
2
3
STBY_ON/OFF
3V3_STBY
STBY_ON/OFF_NOT
10k
R1638
1
2
Q178
BC848B
1
2
3
Q180
BC858B
1
2
3
3V3_STBY
R1649
33k
1
2
D185
BAW56
1
2
3
D186
BAW56
1
2
3
100nF
C971
10V
1
2
PROTECT
TP202
1
U7
LM809
1
3
2
RST
VCC
GND
3V3_STBY
R1761
100R
1
2
3
4
5
6
7
8
R4
R1
R3
R2
R1166
4k7
1
2
50V
C840
220pF
1
2
3V3_VCC
4k7
R1158
1
2
BACKLIGHT_DIM
DIMMING
C839
50V
220pF
1
2
50V
220pF
C838
1
2
4k7
R1165
1
2
R1221
1k
1
2
S18
MEGA_DCR_IN
S16
MEGA_DCR_OUT
12V_STBY
S17
Q189
BC848B
1
2
3
F277
60R
R20
10k
1
2
R40
20k
10k
R21
R1727
33k
1
2
100nF
C1025
16V
C1024
100nF
16V
3V3_STBY
VDDC_1V2
16V
C1001
100nF
C1029
10uF
6V3
AVDD_2V5_PGA
10uF
C1030
6V3
C1028
6V3
10uF
AVDD_DDR
F270
60R
AVSS_PGA
100nF
16V
C1008
2V5_VCC
F271
60R
3V3_VCC
60R
F274
100nF
C1007
16V
1V8_VCC
1V2_VCC
C1014
16V
100nF
2V5_VCC
VDD_3V3
AVDD_3V3
PANEL_VCC_ON/OFF
PANEL_VCC
F290
60R
1
2
47R
R1725
1
2
33k
R1734
1
2
22k
R1749
FDC642P
Q199
1
3
4
5
6
2
TP213
1
F288
60R
1
2
F289
60R
1
2
10k
R1693
1
2
C1042
100nF
10V
1
2
5V_VCC
12V_VCC
Q190
BC848B
1
2
3
5V_VCC
C7
16V
22uF
12V_VCC/STBY
12V_VCC/STBY
5V_STBY
LM1117
U1
1
2
3
4
VOUT
IN
OUT
ADJ
3V3_STBY
12V_VCC/STBY
22uF
6V3
C990
R1677
4k7
1
2
R1676
4k7
1
2
C6
16V
22uF
16V
100nF
C1223
100nF
16V
C1224
C1225
100nF
16V
AVDD2V5_ADC
AVDD2V5_REF
AVDD2V5_AUD
AVDD2V5_MOD
DIMMING CIRCUIT
AP211H
SHORT CCT PROTECTION
LNB CIRCUIT
PANEL SUPPLY SWITCH
60R 402 ferrite secilecek
POWER SOCKET 
PW04 LOW POWER Option
NC
NC
ADAPTOR OVER VOLTAGE PROTECTION
NC
28
LC-22LE240
  
Short CCT Protection Circuit
Short circuit protection is necessary for protecting chassis and main IC against damages 
when any Vcc supply shorts to ground. Protect pin should be logic high while normal 
operation. When there is a short circuit protect pin shold be logic low. After any short 
detection, SW forces LEDs on LED card to blink.
AVDD2V5_REF
AVDD2V5_AUD
AVDD2V5_MOD
F305
1k
F307
1k
1k
F308
100nF
16V
C1221
12V_VCC
12V_VCC/STBY
12V_STBY
12V_VCC
16V
100nF
C1222
C69
1uF
50V
220uF
C65
10V
3V3_VCC
3V3_STBY
S8
S7
VDD_AUDIO_PWR
VDD_AUDIO_PWR
12V_STBY
12V_VCC/STBY
S10
S19
S21
S22
1uF
C1128
25V
CN706
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
10k
R1685
1
2
3V3_VCC
4k7
R1678
1
2
R1679
100R
100R
R1973
3V3_VCC
DIMMING
BACKLIGHT_ON/OFF
5V_STBY
5V_VCC
STBY_ON/OFF
16V
100nF
C1022
1k
F306
6V3
10uF
C1081
F272
60R
BC848B
Q194
1
2
3
Q193
BC858B
1
2
3
Q211
BC848B
1
2
3
60R
F302
1
2
3V3_VCC
4k7
R1748
1
2
BC848B
Q188
1
2
3
MSD9WB9PT-2
U5
H15
H16
H17
J14
J15
J16
J17
H14
K14
N7
N8
P7
P8
T8
R7
R8
U8
V8
E8
F8
G8
G9
E9
F9
J8
H8
G16
G17
G15
E15
E16
E17
F16
F17
K9
L9
M9
N9
P9
R9
D10
E10
F10
G10
H10
J10
K10
L10
M10
N10
P10
R10
D11
E11
F11
G11
H11
J11
K11
L11
M11
N11
P11
R11
D12
E12
F12
G12
H12
J12
K12
L12
M12
N12
P12
R12
D13
E13
F13
G13
H13
J13
K13
L13
M13
N13
P13
R13
D14
E14
L14
M14
N14
P14
R14
D15
K15
L15
M15
N15
P15
R15
D16
K16
L16
M16
D17
K17
L17
M17
K18
L18
M18
W2
W3
V4
V5
V6
D9
D18
GND87
GND86
GND85
GND84
GND83
GND82
GND81
GND80
GND79
GND78
GND77
GND76
GND75
GND74
GND73
GND72
GND71
GND70
GND69
GND68
GND67
GND66
GND65
GND64
GND63
GND62
GND61
GND60
GND59
GND58
GND57
GND56
GND55
GND54
GND53
GND52
GND51
GND50
GND49
GND48
GND47
GND46
GND45
GND44
GND43
GND42
GND41
GND40
GND39
GND38
GND37
GND36
GND35
GND34
GND33
GND32
GND31
GND30
GND29
GND28
GND27
GND26
GND25
GND24
GND23
GND22
GND21
GND20
GND19
GND18
GND17
GND16
GND15
GND14
GND13
GND12
GND11
GND10
GND9
GND8
GND7
GND6
GND5
GND4
GND3
BYPASS
AVDD_DDR_4
AVDD_DDR_3
AVDD_DDR_2
AVDD_DDR_1
AVDD_DDR_0
AVDD_LPLL
VDDP1
VDDP0
AVDD_EAR33
AVDD_AU33
AVDD_CVBS33_1
AVDD_CVBS33_0
AVDD_DMPLL
AVDD_ALIVE_2
AVDD_ALIVE_1
AVDD_ALIVE_0
PGA_VCOM
AVDD_PGA25
AVDD_MOD25_1
AVDD_MOD25_0
AVDD_AU25
AVDD_REF25_1
AVDD_REF25_0
AVDD_ADC25_1
AVDD_ADC25_0
AVDD_126
DVDD_DDR
VDDC6
VDDC5
VDDC4
VDDC3
VDDC2
VDDC1
VDDC0
6
12V_VCC
L2
10uH
R18
10k
4k7
R41
2k2
R42
27-10-2011_09:04
POWER_1&LNBP
8
<YOUR NAME HERE>
17mb62-2v3
8
7
6
5
4
3
2
1
A
B
C
D
E
F
A X M
1
2
3
4
5
6
7
8
A
B
C
D
E
F
A3
PROJECT NAME :
VESTEL
SCH NAME :
DRAWN BY :
T. SHT:
VDDC_1V2
C68
50V
15nF
15k
R43
C12
220nF
25V
D7
1N4001
LNB_OUT
C70
470nF
25V
3V3_VCC
R19
10k
F295
1k
SK24
D8
C13
220nF
25V
16V
C997
100nF
SDA_SYS
SCL_SYS
3V3_VCC
100nF
16V
C1005
C14
25V
220nF
C1070
16V
100nF
C1004
16V
100nF
LNBH23L
U6
27
4
19
18
6
9
14
29
30
22
13
21
11
12
1
2
3
7
8
16
17
23
24
25
26
31
32
10
15
28
5
20
A_GND
P_GND
I_SEL
BYP
ADDR
NC_13
NC_12
NC_11
NC_10
NC_9
NC_8
NC_7
NC_6
NC_5
NC_4
NC_3
NC_2
NC_1
DSQIN
PDC
VO_RX
EXTM
VO_TX
RSV_2
RSV_1
TTX
SCL
SDA
VCC_L
VCC
LX
V_UP
12V_VCC
S82
1
2
R1636
10k
1
2
10k
R1635
1
2
3V3_TUNER
12V_VCC
3V3_VCC
VDD_3V3
1N5819
D6
5V_VCC
DISEQC_OUT
R1750
22k
VDD_AUDIO_PWR
10k
R1631
1
2
16V
100nF
C1009
10uF
10V
C774
C974
1uF
6V3
AVDD_DDR
AVDD_3V3
AVSS_PGA
AVDD_2V5_PGA
AVDD2V5_ADC
BAW56
D184
1
2
3
10k
R1639
1
2
BC848B
Q191
1
2
3
STBY_ON/OFF
3V3_STBY
STBY_ON/OFF_NOT
10k
R1638
1
2
Q178
BC848B
1
2
3
Q180
BC858B
1
2
3
3V3_STBY
R1649
33k
1
2
D185
BAW56
1
2
3
D186
BAW56
1
2
3
100nF
C971
10V
1
2
PROTECT
TP202
1
U7
LM809
1
3
2
RST
VCC
GND
3V3_STBY
R1761
100R
1
2
3
4
5
6
7
8
R4
R1
R3
R2
R1166
4k7
1
2
50V
C840
220pF
1
2
3V3_VCC
4k7
R1158
1
2
BACKLIGHT_DIM
DIMMING
C839
50V
220pF
1
2
50V
220pF
C838
1
2
4k7
R1165
1
2
R1221
1k
1
2
S18
MEGA_DCR_IN
S16
MEGA_DCR_OUT
12V_STBY
S17
Q189
BC848B
1
2
3
F277
60R
R20
10k
1
2
R40
20k
10k
R21
R1727
33k
1
2
100nF
C1025
16V
C1024
100nF
16V
3V3_STBY
VDDC_1V2
16V
C1001
100nF
C1029
10uF
6V3
AVDD_2V5_PGA
10uF
C1030
6V3
C1028
6V3
10uF
AVDD_DDR
F270
60R
AVSS_PGA
100nF
16V
C1008
2V5_VCC
F271
60R
3V3_VCC
60R
F274
100nF
C1007
16V
1V8_VCC
1V2_VCC
C1014
16V
100nF
2V5_VCC
VDD_3V3
AVDD_3V3
PANEL_VCC_ON/OFF
PANEL_VCC
F290
60R
1
2
47R
R1725
1
2
33k
R1734
1
2
22k
R1749
FDC642P
Q199
1
3
4
5
6
2
TP213
1
F288
60R
1
2
F289
60R
1
2
10k
R1693
1
2
C1042
100nF
10V
1
2
5V_VCC
12V_VCC
Q190
BC848B
1
2
3
5V_VCC
C7
16V
22uF
12V_VCC/STBY
12V_VCC/STBY
5V_STBY
LM1117
U1
1
2
3
4
VOUT
IN
OUT
ADJ
3V3_STBY
12V_VCC/STBY
22uF
6V3
C990
R1677
4k7
1
2
R1676
4k7
1
2
C6
16V
22uF
16V
100nF
C1223
100nF
16V
C1224
C1225
100nF
16V
AVDD2V5_ADC
AVDD2V5_REF
AVDD2V5_AUD
AVDD2V5_MOD
DIMMING CIRCUIT
AP211H
SHORT CCT PROTECTION
LNB CIRCUIT
PANEL SUPPLY SWITCH
60R 402 ferrite secilecek
POWER SOCKET 
PW04 LOW POWER Option
NC
NC
ADAPTOR OVER VOLTAGE PROTECTION
NC
CN705
1
2
3
4
5
6
S6
60R
F6
1
2
F7
60R
1
2
5V_VCC
60R
F9
1
2
12V_VCC
60R
F10
1
2
12V_VCC
60R
F11
1
2
F12
60R
1
2
3V3_VCC
R24
100R
1
2
3V3_TUNER
LM1117
U2
1
2
3
4
VOUT
IN
OUT
ADJ
12V_STBY
R1972
10k
1
2
100k
R1769
F303
60R
1
2
5V_VCC
15uH
L123
1
2
S89
L116
10uH
12V_STBY
12V_INV
BACKLIGHT_ON/OFF
JK9
1
2
3
4
5
7A/32VDC
FS3
1
2
DIMMING
12V_INV
FS4
7A/32VDC
1
2
Q197
FDC604P
1
3
4
5
6
2
TP36
1
TP37
1
TP39
1
TP45
1
TP239
1
6V3
22uF
C1086
TP46
1
TP243
1
TP231
1
S83
TP241
1
7A/32VDC
FS2
1
2
5V_VCC
TP244
1
TP238
1
Q2
FDC642P
1
3
4
5
6
2
FDC604P
Q1
1
3
4
5
6
2
C1212
22uF
6V3
C1087
22uF
6V3
C1217
10nF
50V
100R
R1979
1
2
3
45
6
7
8
R4
R1
R3
R2
22k
R1736
C1094
22uF
6V3
22uF
C1079
6V3
R1770
150k
16V
C1085
22uF
22uF
C1101
6V3
STBY_ON/OFF
STBY_ON/OFF_NOT
MOSFET_CONTROL
L117
10uH
16V
C1089
22uF
16V
22uF
C1090
22uF
C1092
16V
22uF
6V3
C1097
6V3
22uF
C1033
C1102
16V
22uF
100R
R25
1
2
C1093
6V3
22uF
6V3
22uF
C1096
R1708
5k6
330R
F300
1
2
10V
C1034
100nF
1
2
20k
R1738
6V3
C1107
1uF
Q198
FDC604P
1
3
4
5
6
2
C1037
16V
100nF
27-10-2011_09:04
POWER_2
<YOUR NAME HERE>
17mb62-2v3
8
7
6
5
4
3
2
1
A
B
C
D
E
F
A X M
1
2
3
4
5
6
7
8
A
B
C
D
E
F
A3
PROJECT NAME :
VESTEL
SCH NAME :
DRAWN BY :
T. SHT:8
F291
60R
1
2
10V
C1036
100nF
1
2
22uF
16V
C1091
10k
R1697
1
2
22uF
6V3
C1098
12V_VCC
12V_VCC
R1691
10k
1
2
U173
MP1484
1
2
3
4
5
6
7
8
SS
EN
COMP
FB
GND
SW
IN
BS
39k
R1686
1V2_VCC
10nF
C1113
16V
1
2
5n6F
C1131
50V
1
2
60R
F273
1
2
R1710
3k9
1
2
R1720
100R
1
2
33k
R1731
1
2
C1048
220nF
25V
12
47R
R1723
1
2
12V_STBY
Q183
BC848B
1
2
3
3V3_STBY
22k
R1735
R1730
10k
5V_STBY
MOSFET_CONTROL
3V3_VCC
L118
15uH
1
2
1k
R1768
C1084
16V
22uF
R1737
33k
C1035
100nF
10V
1
2
C1080
6V3
100uF
1
2
R1709
3k9
1
2
5n6F
50V
C1130
1
2
16V
10nF
C1112
1
2
D197
SS33
1
2
MP1583
U174
5
6
7
8
4
3
2
1 BS
IN
SW
GND
SS
EN
COMP
FB
10k
R1690
1
2
2V5_VCC
U175
LM1117
1
2
3
4
VOUT
IN
OUT
GND
R1692
10k
1
2
100R
R1721
1
2
12V_VCC
MOSFET_CONTROL
FDC642P
Q200
1
3
4
5
6
2
33k
R1733
1
2
12V_STBY
Q182
BC848B
1
2
3
47R
R1724
1
2
220nF
25V
C1049
12
33k
R1732
1
2
60R
F287
1
2
100nF
16V
C1038
MP2012
U176
1
2
3
4
5
6 EN
VIN
PVIN
SW
GND
FB
7A/32VDC
FS5
1
2
3V3_STBY
16V
C1103
22uF
1V8_VCC
3V3_VCC
MOSFET_CONTROL
R1698
10k
1
2
5V_VCC
1k
R1728
5V_STBY
Q184
BC848B
1
2
3
R1722
47R
1
2
C1047
220nF
25V
12
33k
R1729
1
2
6k8
R3
L16
10uH
60R
F286
1
2
C1129
50V
5n6F
1
2
10nF
C1114
16V
1
2
10k
R1689
1
2
3V3_STBY
12V_STBY
12V_STBY
U23
MP1484
1
2
3
4
5
6
7
8
SS
EN
COMP
FB
GND
SW
IN
BS
S1
DC
DC
DC
DC
ADAPTER SOCKET
W_ADAPTER
!
NC
INVERTER SOCKET W/ADAPTER 
DC
DC
DC
DC
LDO
12V_STBY
12V_VCC
1V2_VCC
5V_STBY
5V_VCC
3V3_STBY
3V3_VCC
0R
DC/DC2
DC/DC4
LDO1
2V5_VCC
1V8_VCC
SW1
AP211H
LDO
DC-DC4
SW2
SW3
DC-DC2
COMMON
W/ADAPTOR & W/IPS16&17&60&PW25&PW06
DC-DC1
W/ADAPTOR
DC-DC3
POWER BLOCK DIAGRAM
LDO1
LDO2
3V3_TUN
SW1
DC/DC1
DC/DC3
SW2
SW3
NC
2A
30068939
4A
NC
3N3
150K
10UH
30068939
for 3v3 Panel Sup.
LDO2
CCFL INVERTER SOCKET
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