DOWNLOAD LG 42SL80YR-MA (CHASSIS:LJ91T) Service Manual ↓ Size: 5.22 MB | Pages: 74 in PDF or view online for FREE

Model
42SL80YR-MA (CHASSIS:LJ91T)
Pages
74
Size
5.22 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42sl80yr-ma-chassis-lj91t.pdf
Date
PREV: LG 42SL80YR-LA / 42SL80YR-TA / 42SL80YR-TB (CHASSIS:LP91T) Service Manual

LG 42SL80YR-MA (CHASSIS:LJ91T) Service Manual ▷ View online

THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
2009.03.23
HDMI
BCM (BRAZIL VENUS)
5V_HDMI_2
+1.8V_HDMI
R674
OPT
4.7K
+1.8V_AMP
D2-_HDMI2
5V_HDMI_2
HPD1
R676
12K
CK+_HDMI1
D2+_HDMI2
CK+_HDMI1
Y12
C624
0.1uF
R657
47K
+3.3V_HDMI
HDMI0_RX1+_BCM
11:W16
D2+_HDMI4
AE19
HPD4
AH19
C625
0.1uF
5V_HDMI_1
R670
0
HDMI0_RX2+_BCM
11:W16
GND
R641
0
CK+_HDMI2
CEC_REMOTE
C605
0.1uF
C612
0.1uF
DDC_SDA_2
HPD2
C611
0.1uF
5V_HDMI_2
P19;AJ15
C604
0.1uF
HDMI0_RXC-_BCM
11:W17
DDC_SCL_4
R13;AG19
R672
OPT
4.7K
CK-_HDMI1
Y12
R666
68K
HDMI0_RX2-_BCM
11:W16
R607
0
C621
0.1uF
DDC_SCL_4
D0+_HDMI1
DDC_SCL_2
R17;AL12
DDC_SDA_2
R18;AL12
C610
0.1uF
+1.8V_HDMI
DDC_SCL_1
C606
0.1uF
R627
0
CK-_HDMI4
D1-_HDMI2
AL13
C616
0.1uF
D1-_HDMI2
D2+_HDMI4
D0-_HDMI2
C628
0.1uF
5V_HDMI_1
L19;Z14
C623
0.1uF
+3.3V_HDMI
C626
0.1uF
D1+_HDMI4
AF19
R661
1.8K
R653
47K
D0+_HDMI4
AF19
R618
0
L601
BLM18PG121SN1D
HPD1
Y13
VR607
AVRL161A1R1NT
DDC_SCL_2
R616
0
GND
D2-_HDMI4
+1.8V_HDMI
CK-_HDMI1
D0-_HDMI4
CK+_HDMI2
AL12
DDC_SDA_1
C615
0.1uF
CK+_HDMI4
AG19
IC601
TDA9996HL
1
VSS_1
2
OUT_C+
3
OUT_C-
4
VDDO[3V3]
5
OUT_DDC_CLK
6
OUT_DDC_DAT
7
VSS_2
8
VDDC[1V8]_1
9
RXA_HPD
10
RXA_5V
11
RXA_DDC_DAT
12
RXA_DDC_CLK
13
RXA_C-
14
RXA_C+
15
VDDH[3V3]_1
16
RXA_D0-
17
RXA_D0+
18
VSS_3
19
RXA_D1-
20
RXA_D1+
21
VDDH[3V3]_2
22
RXA_D2-
23
RXA_D2+
24
VDDH[1V8]_1
25
NC
26
VSS_4
27
TEST
28
RXB_HPD
29
RXB_5V
30
RXB_DDC_DAT
31
RXB_DDC_CLK
32
RXB_C-
33
RXB_C+
34
VDDH[3V3]_3
35
RXB_D0-
36
RXB_D0+
37
VSS_5
38
RXB_D1-
39
RXB_D1+
40
VDDH[3V3]_4
41
RXB_D2-
42
RXB_D2+
43
VSS_6
44
CDEC_DDC
45
VDDC[1V8]_2
46
VDDC[3V3]
47
MODE
48
PD
49
SDA/SEL1
50
SCL/SEL0
51
XTAL_IN
52
XTAL_OUT
53
INT/HP_CTRL
54
CDEC_STBY
55
VDDS[3V3]
56
VSS_7
57
CEC
58
RXC_HPD
59
RXC_5V
60
RXC_DDCC_DAT
61
RXC_DDC_CLK
62
RXC_C-
63
RXC_C+
64
VDDH[3V3]_5
65
RXC_D0-
66
RXC_D0+
67
VSS_8
68
RXC_D1-
69
RXC_D1+
70
VDDH[3V3]_6
71
RXC_D2-
72
RXC_D2+
73
VSS_9
74
R12K
75
VDDH[1V8]_2
76
RXD_HPD
77
RXD_5V
78
RXD_DDC_DAT
79
RXD_DDC_CLK
80
RXD_DC-
81
RXD_DC+
82
VDDH[3V3]_7
83
RXD_D0-
84
RXD_D0+
85
VSS_10
86
RXD_D1-
87
RXD_D1+
88
VDDH[3V3]_8
89
RXD_D2-
90
RXD_D2+
91
VDDC[1V8]_3
92
VSS_11
93
OUT_D2+
94
OUT_D2-
95
VDDO[1V8]
96
OUT_D1+
97
OUT_D1-
98
VSS_12
99
OUT_D0+
100
OUT_D0-
SCL1_3.3V
5:G5;16:G14
R655
47K
D1-_HDMI4
C614
0.1uF
5V_HDMI_4
DDC_SDA_4
DDC_SDA_1
M18;X13
R662
1.8K
HDMI0_RXC+_BCM
11:W17
C607
0.1uF
R639
0
GND
D2-_HDMI2
AL14
R673
OPT
4.7K
D0+_HDMI2
CK-_HDMI4
AG19
D1+_HDMI1
Y11
D0+_HDMI2
AL13
D1+_HDMI2
AL13
D1+_HDMI1
D1-_HDMI1
5V_HDMI_4
5V_HDMI_1
DDC_SDA_1
D0+_HDMI1
Y11
R663
0
C619
0.1uF
C622
0.1uF
DDC_SCL_2
D0-_HDMI4
AF19
D2+_HDMI1
+3.3V_ST
R617
0
+5.0V
R642
0
R678
0
OPT
D2+_HDMI1
Y10
HDMI0_RX0+_BCM
11:W17
C613
0.1uF
R665
0
R669
0
C617
0.1uF
D3.3V
HDMI_SCL
R628
0
R606
0
DDC_SDA_2
D1+_HDMI4
D1-_HDMI1
Y11
D0+_HDMI4
5V_HDMI_4
Q16;AH18
DDC_SDA_4
R14;AG19
R667
9.1K
R605
0
L602
BLM18PG121SN1D
CEC_REMOTE
H8;H17;R26;AL11
R656
47K
D2-_HDMI1
Y10
CEC_REMOTE
H17;R26;W27;AL11
CK-_HDMI2
AL12
SDA1_3.3V
5:G5;16:G14
C629
0.1uF
R677
0
HDMI_CEC
12:F6
+5.0V
CEC_REMOTE
H8;R26;W27;AL11
D601
MMBD301LT1G
DDC_SCL_4
DDC_SDA_4
C609
0.1uF
R634
47K
R658
0
R643
0
D2-_HDMI1
GND
C620
0.1uF
C608
0.1uF
C627
0.1uF
HDMI0_RX0-_BCM
11:W17
HDMI0_RX1-_BCM
11:W16
D0-_HDMI2
AL13
R668
0
D0-_HDMI1
D1-_HDMI4
AF19
DDC_SCL_1
M17;X12
D2+_HDMI2
AL14
R675
OPT
0
CK-_HDMI2
CEC_REMOTE
H8;H17;W27;AL11
GND
HDMI_SDA
HPD2
AL11
D1+_HDMI2
R635
47K
+3.3V_HDMI
R664
0
OPT
HPD4
R671
0
Q601
SSM6N15FU
3
DRAIN2
2
GATE1
1
SOURCE1
4
SOURCE2
5
GATE2
6
DRAIN1
CK+_HDMI4
DDC_SCL_1
D0-_HDMI1
Y12
D2-_HDMI4
AE19
JK501
YKF45-7058V
14
13
5
20
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
JK503
KJA-ET-0-0032 
14
NC
13
CEC
5
DATA1_SHIELD
20
JACK_GND
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
C618
5.6nF
JK500
YKF45-7058V
14
13
5
20
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
2
15
LEE GI YOUNG
Net Labels changed for HDMI2
SIDE_HDMI_PORT4
UI_HW_PORT1
in case HDMI Switch doesn’t support ’ESD protection’
UI_HW_PORT2
HDMI S/W For MSTAR Platform
* HDMI CEC
VARISTORS(VR500/501/502/503/504/505/506/507) on lines-HPD1/2/3/4 are all options
EDID Pull-up
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
AA
AB
AC
AD
AE
AF
AG
AH
AI
AJ
AK
AL
AM
AN
AO
AP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
2009.03.23
AUDIO
BCM (BRAZIL VENUS)
C533
1000pF
50V
R505
100
R513
100
L507
120-ohm
L501
MLB-201209-0120P-N2
R525
4.7K
R529
3.3
R523
4.7K
C509
33pF
50V
0.1uF
C513
16V
SPK_R-
H4
C534
1000pF
50V
0.1uF
C542
50V
AMP_RST
9:G7;9:I3;12:I4
0.01uF
C545
50V
C519
22000pF
50V
R519
5.6
0.1uF
C505
16V
L509
120-ohm
R524
4.7K
C532
1000pF
50V
0.1uF
C528
50V
C517
33pF
50V
OPT
C521
1uF
16V
C501
10uF
10V
SPK_R+
H4
C530
0.1uF
50V
C531
1000pF
50V
+1.8V_AMP
R518
5.6
SPK_L+
H3
AUDIO_M_CLK
9:G6
C503
10uF
6.3V
R526
4.7K
0.1uF
C508
R501
0
AMP_MUTE
12:F3
+1.8V_AMP
SCL1_3.3V
9:I4;2:AH5
SDA1_3.3V
9:I4;2:AH5
R511
3.3
SPK_L-
H3
R507
100
L510
120-ohm
0.1uF
C541
50V
R508
100
C511
1uF
10V
L508
120-ohm
BCM_I2S_DATA_OUT
11:F7
C507
1000pF
50V
R522
3.3
SPK_R-
H3
C523
1uF
16V
BCM_I2S_BIT_CLK
11:F7
R530
3.3
R521
5.6
L502
MLB-201209-0120P-N2
0.01uF
C546
50V
C524
22000pF
50V
C506
1000pF
50V
R503
3.3K
C512
33pF
50V
0.01uF
C547
50V
SPK_L+
H5
R520
5.6
+1.8V_AMP
+24V_AMP
D3.3V
R502
100
BCM_I2S_WORD_CLK
11:F6
C518
1uF
10V
C504
100pF
50V
C525
22000pF
50V
C502
0.1uF
16V
R527
3.3
C514
22000pF
50V
R506
100
0.1uF
C543
50V
C535
0.01uF
50V
R509
100
L503
MLB-201209-0120P-N2
SPK_L-
H5
R504
0
+24V_AMP
0.1uF
C522
50V
0.01uF
C526
50V
0.1uF
C540
50V
SPK_R+
H3
R528
3.3
0.1uF
C520
50V
C510
10uF
10V
0.01uF
C544
50V
0.01uF
C515
50V
+24V
L511
MLB-201209-0120P-N2
+24V_AMP
+1.8V_AMP
GND
D3.3V
C551
0.1uF
16V
C549
0.1uF
16V
IC503
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
0.01uF
C527
50V
IC501
NTP-3100L
EAN60664001
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
15
DVSS_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
P501
WAFER-ANGLE
1
2
3
4
5
C553
330uF
35V
C529
330uF
C552
10uF
10V
C548
10uF
10V
D501
100V
1N4148W
OPT
D502
100V
1N4148W
OPT
D503
100V
1N4148W
OPT
D504
100V
1N4148W
OPT
L504
DA-8580
EAP38319001
22uH
2S
1S
1F
2F
L505
DA-8580
EAP38319001
22uH
2S
1S
1F
2F
C538
0.47uF
50V
C539
0.47uF
50V
3
15
SPEAKER_R
SPEAKER_L
Change 22uH(L504,L505) TO 15uH/6.3mm After DV1
2A => 5A
T_330uF_Capacitor
T_330uF_Capacitor
MCLK SDATA WCK BCK TP is necessory
Monitor0_1_2 TP is necessory
KIM JONG HYUN
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
POWER
BCM (BRAZIL VENUS)
2009.03.23
R823
1K
OPT
IC805
AOZ1073AIL
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
L815
3.6uH
RL_ON
12:I5;14:E5
+3.3V_ST
C846
330pF
50V
INV_ON/OFF
12:I5
D803
1N4148W
100V
3.3K
R832
C815
2200pF
IC802
AZ1085S-ADJTR/E1
1
ADJ/GND
2
OUTPUT
3
INPUT
R843
10K
C801
10uF
16V
R810
22K
R813
47K
L807
CB4532UK121E
+5.0V
12:A3;2:Y20;2:Z10;B3;C6;H5;7:A3;14:I7;14:J1
R853
300
C838
1uF
25V
3.3K
R873
A_DIM
9:G6;9:I3
C895
0.1uF
50V
TruMotion_240Hz
C868
10uF
10V
C
8
8
2
1
0
u
F
6
.
3
V
D1.8V
R864
620
R854
10K
C821
0.068uF
R812
47K
R824
10K
22uF
C819
16V
C876
100uF
16V
0.1uF
C808
16V
OPT
C1810
10uF
6.3V
R870
10K
OPT
L817
2.2uH
C896
22uF
16V
C840
1000pF
50V
L826
BG2012B080TF
Q812
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
C1807
0.1uF
R855
12.4K
1%
C870
0.1uF
16V
PWM_DIM
9:G7;9:I3;7:I5
Q806
2SC3052
E
B
C
R840
39K
C824
0.1uF
50V
OPT
C851
470pF
IC803
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
22uF
C842
16V
+12V
R835
0
+1.8V_MEMC
R872
1.2K
C883
100uF
16V
+3.3V_MEMC
D1.2V
R811
22K
R805
10K
R849
10K
R875
0
C803
0.1uF
16V
C817
4.7uF
25V
OPT
R833
390K
1/8W
C885
33uF
C1802
10uF
25V
D805
SAM2333
A
2
[
G
N
]
C
A
1
[
R
D
]
C826
47uF
25V
C845
0.1uF
50V
R827
10K
OPT
C878
0.1uF
+12V
12:A3;A6;B5;F7;G7;I2;14:B2
IC807
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
R869
0
OPT
R828
10K
OPT
C820
15pF
50V
C836
0.1uF
C832
1uF
25V
+5.0V
C829
1uF
25V
OPT
R845
15K
C856
6800pF
L804
BG2012B080TF
R841
18K
A2.5V
+5.0V
C811
0.1uF
C830
2200pF
Q813
2SC3875S(ALY)
OPT
E
B
C
Q802
2SC3052
E
B
C
C844
0.1uF
R816
6.8K
OPT
C1804
470pF
R807
0
OPT
Q807
2SC3875S(ALY)
OPT
E
B
C
C
8
8
1
1
0
u
F
6
.
3
V
R826
10K
OPT
R844
11K
R821
1.8K
C859
0.1uF
D2.5V
L812
MLB-201209-0120P-N2
L801
CB3216PA501E
C1805
1uF
25V
L828
2.2uH
R829
0
+3.3V_ST
C899
100uF
16V
C814
0.1uF
16V
C1806
1uF
25V
R842
2K
P801
FM20020-24
19
N.C
14
12V
9
5.2V
4
GND
18
24V
13
12V
8
5.2V
3
GND
17
24V
12
GND
7
5.2V
2
POWER_ON
16
GND
11
GND
6
GND
1
N.C
20
Inverter_On
15
GND
10
5.2V
5
GND
21
A.Dim
22
Error_Out
23
N.C
24
PWM_Dim
25
GND
+3.3V_ST
IC801
AZ1117D-3.3TRE1 
1
ADJ/GND
2
OUTPUT
3
INPUT
+5V_ST
C1809
10uF
25V
C807
68uF
35V
C
8
5
2
1
0
u
F
6
.
3
V
R806
10K
OPT
D3.3V
R825
66.5
1%
C1800
1uF
25V
C806
0.1uF
16V
OPT
C877
0.1uF
16V
C812
0.1uF
50V
D3.3V
C887
0.1uF
C886
0.1uF
D3.3V
R874
1.1K
C835
1uF
25V
C
8
6
1
0
.
0
1
u
F
C1812
10uF
6.3V
Q804
SI4925BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
Q809
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
C
8
8
4
0
.
0
1
u
F
D802
1N4148W
100V
L819
2.2uH
+12V
C860
10uF
16V
+5V_ST
C1801
0.01uF
Q803
2SC3052
E
B
C
D801
1N4148W
100V
C872
1uF
25V
C804
1uF
50V
IC806
SC2621ASTRT
3
COMP
2
OCS
4
FB
1
BST
6
LDFB
5
LDOG
7
GND_1
8
VCC
9
NC
10
DRV
11
DL
12
GND_2
13
PN
14
DH
PANEL_CTL
12:I5
C1813
10uF
6.3V
R
8
4
6
1
K
+5V_ST
ERROR_OUT
12:F6
R852
10K
R857
56
1%
OPC_OUT1
7:I5
C805
1uF
25V
C822
0.1uF
C1803
33uF
10V
A3.3V
C880
470pF
C875
10uF
6.3V
C825
220pF
C828
0.1uF
50V
R830
0
A1.2V
+12V
C1811
1uF
25V
IC809
SC2621ASTRT
3
COMP
2
OCS
4
FB
1
BST
6
LDFB
5
LDOG
7
GND_1
8
VCC
9
NC
10
DRV
11
DL
12
GND_2
13
PN
14
DH
R822
0
OPT
C839
22uF
16V
+1.8V_MEMC
+12V
12:A3;A6;C4;F7;G7;I2;14:B2
C818
330uF
4V
R871
20K
C862
470pF
C888
33uF
10V
C873
1uF
25V
C833
22uF
25V
+12V
6.8K
R831
C841
10uF
+24V
+1.26V_MEMC
+5.0V
C827
100uF
R848
1.5K
R818
3.3K
R801
4.7K
C810
22uF
16V
+5V_ST
C853
10uF
16V
R819
56
1%
C837
1uF
25V
R862
5.6K
C863
10uF
16V
R856
22K
L808
MLB-201209-0120P-N2
IC804
SC2621ASTRT
3
COMP
2
OCS
4
FB
1
BST
6
LDFB
5
LDOG
7
GND_1
8
VCC
9
NC
10
DRV
11
DL
12
GND_2
13
PN
14
DH
Q810
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
R815
100
12V_TCON
7:I5;7:I7
C898
1uF
25V
R859
330K
1/10W
R814
15K
1%
C802
68uF
35V
R847
200
R863
1K
C1814
10uF
6.3V
C858
33uF
10V
C1815
10uF
6.3V
R876
1K
LD1
SAM2333
A2[GN]
C
A1[RD]
0
R802
R877
0
R878
0
R834
150K
1/10W
Q805
RT1P141C-T112
E
B
C
R817
33K
OPT
R820
33K
C1816
10uF
6.3V
C1808
100uF
16V
C865
10uF
6.3V
C854
330uF
4V
JP810
C1817
10uF
C855
10uF
6.3V
C1818
0.1uF
50V
OPT
C1819
0.1uF
50V
OPT
L805
CB4532UK121E
R861
3.3
R837
3.3
R836
3.3
C879
470pF
C848
470pF
C847
470pF
L
8
2
4
M
L
B
-
2
0
1
2
0
9
-
0
1
2
0
P
-
N
2
L829
MLB-201209-0120P-N2
L822
MLB-201209-0120P-N2
L830
MLB-201209-0120P-N2
L827
MLB-201209-0120P-N2
L813
MLB-201209-0120P-N2
L806
MLB-201209-0120P-N2
L821
MLB-201209-0120P-N2
L811
MLB-201209-0120P-N2
15
4
AN SO YOUNG
* FROM LIPS & POWER B/D -->Apply changed Pin Map 
220uF ==> 100uF*2 + 22uF for Depth
600 mA
must be placed with pin#8,#10 as close as possible. 
VOUT : 2.533V
400 mA + 600 mA
FLASH, A1.2, +1.8_DDR_BCM3556, VTT
R1
750 mA
* +5v_ST to +3.3V_ST
We’ll change SI4804 to KEC’s Product
415 mA @85% efficiency
R2
* +1.26V Core for FRC
* +1.8V_MEMC for FRC DDR
1.8V_BCM3556
 * +5.0V to 1.2V
must be placed with pin#8,#10 as close as possible. 
* +12v -> PANEL_POWER
* +12V to +5.0V
* D1.8V
Vout = (1+R2/R1)*1.25
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
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