DOWNLOAD LG 37LV355H-ZA (CHASSIS:LD0AZ) Service Manual ↓ Size: 10.08 MB | Pages: 62 in PDF or view online for FREE

Model
37LV355H-ZA (CHASSIS:LD0AZ)
Pages
62
Size
10.08 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lv355h-za-chassis-ld0az.pdf
Date

LG 37LV355H-ZA (CHASSIS:LD0AZ) Service Manual ▷ View online

- 14 -
BLOCK DIAGRAM
RGB
COMP
ON
ENT
F-SC
A
R
T
IF_N
/P
_MST
A
R
DDR3 (2
GB)
IC
1201
NAND Flas
h
HY
NI
X(2G
)
IC
102
USB
Digital am
p
(N
T
P
7100
)
IC
501
COMP_Y
/Pb/p
R
S
C
1_
C
V
B
S
/R
/G/B/F
B_I
N
I2
S
DS
UB_
 R
/G
/B
Tuner 
(TDTJ-
S001D)
TU3702
LED P
an
e
l
CI Slot
(P1902)
74LCX244
Buffer
IC1902
PCM_A
[0
:7
]
TU_CVBS
PCM_A
[0
:7
]
DDR3 (1
GB)
IC
1202
B_
T
M
D
Q
[0
:16]
Mstar
S7
LGE101DC-R
(I
C101)
AQ
Z1073ATL
-3
U
S
B Pow
er
 
IC
402
U
S
B Pow
er
S
C
1_L/
R_
IN
, E_A
M
_
A
U
D
IO
,AV_L/
R
_
IN
C
O
M
P
_L/
R
_
IN
, P
C
_L/
R_
IN
 
TV/
D
TV_VOUT
A_
T
M
D
Q
[0
:16]
Head 
Phon
e
R
S
-232
C
M
A
X3232
C
D
R
IC
1100
SP
DI
F
SPDIF_
O
U
T
DS
UB_
H
/VS
YNC
HP_
L
/R
O
UT
L/R
P
I_
T
S_
D
A
T
A
[0
:7]
F
E
_T
S_
D
A
TA
[0:7]
CI_
ADDR[
0:
7
]
NEC_
TX
/RX
HPD1
/2
HDMI_
CEC, 5
V
_HDMI 1
/2
TMDS[
0:
7
] ( D
a
ta
, Clock (+/-))
EE
PRO
M
M24M
0
1-HRMN6
(I
C
104
)
EE
PRO
M
CAT2
4WC0
8W-
T
(HDCP)IC10
3
I2
C
LVDS (8bit or 
10 bit)
S
erial Flash
IC
1401
F
or Boot
HDMI 1
/2
M
P
2305
IC
2201
DC/DC Co
nv.
(1
2V
 t
o
 5V)
M
P
5000
IC
2202
5V
12V
Po
w
er S
W
(1
2V
 On/O
ff
)
NEC Micom
uPD78F1164A
(I
C1102)
L
E
D Driver
I2
C
 SW
I2
C
I2
C
I2
C
MST_
TX
/RX
LED C
lo
c
k
S
p
ea
ke
r O
u
t
A
u
dio amp
(T
P
A
3124
D2
)
L/
R
S
p
ea
ke
r O
u
t
Contr
ol
Up/D
o
w
n
TU_
SI
F
IF_AGC
74LV
C
16244
Bu
ffe
r
IC
1501
LGDT1129
FPGA
IC1503
FE
_T
S
_DAT
A[
0
]
PKT_DATA[
0]
C
I_T
S_
DA
T
A
[0
:7]
R
S
-232
C
M
A
X3232
C
D
R
US
B_D
M
/D
P
(I
C
104
)
12V
IC
5005/5006
I2
C
I2
C
I2
C
IC
1500
- 15 -
A2
A10
* Set + Stand
* Stand Base + Body
300
200
510
810
910
900
511
560
710
120
400
LV
1
700
530
540
521
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
R293
1K
OPT
TP202
R212
1K
PHM_OFF
C292
0.1uF
OPT
MVREF
10uF
C4001
C204
0.047uF
TU_CVBS
D0+_HDMI1
C4044
0.1uF
OPT
C263
10uF
L207
BLM18PG121SN1D
SCART1_Lout
L226
BLM18SG700TN1D
C290
0.1uF
OPT
DSUB_R+
D1+_HDMI1
D2+_HDMI1
VDD33_DVI
AVDD_DMPLL
AU33
AVDD_DDR0
C4056
0.1uF
C4060
2.2uF
10uF
C276
SIDE_USB_DM
DSUB_HSYNC
C4008
0.1uF
OPT
AU33
C4011
0.1uF
OPT
C285
0.1uF
D2-_HDMI2
AUD_LRCK
C253
1uF
AVDD_DMPLL
L223
BLM18SG121TN1D 
C210
1000pF
R4016
33
SC1_FB
L228
BLM18SG700TN1D
C4045
1uF
AU25
+1.26V_VDDC
C4042
0.1uF
OPT
HP_LOUT
C214
0.047uF
R4026
10K
C208
0.047uF
C4022
10uF
OPT
L227
BLM18PG121SN1D
L217
BLM18PG121SN1D
C4032
0.1uF
C245
2.2uF
PC_R_IN
C231
0.047uF
AVDD25_PGA
R249
33
R257
33
AVDD_DDR0
R236
0
OPT
C4026
0.1uF
D2+_HDMI2
C4028
0.1uF
VDD33_DVI
R201
100
OPT
TP209
D0-_HDMI1
C4019
0.1uF
OPT
AVDD_DMPLL
C4014
0.1uF
AUD_SCK
VDD33
HPD2
R288
100
TU_SCL
C242
2.2uF
C251
0.1uF
VDD33
C283
0.1uF
OPT
AVDD_DDR0
+3.3V_Normal
+2.5V_Normal
COMP2_R_IN
VDD33
R231
68
RF_SWITCH_CTL
CEC_REMOTE_S7
C238
2.2uF
MODEL_OPT_1
D1-_HDMI1
R292
22
FULL_NIM
AVDD2P5
R248
33
10uF
C275
COMP2_Pb+
MODEL_OPT_4
C4043
0.1uF
R258
68
AVDD2P5
MODEL_OPT_4
C223
0.047uF
SIDE_USB_DP
DDC_SDA_2
COMP2_DET
R226
1K
OPT
C209
0.047uF
+3.3V_Normal
R4019
1K
R297
1K
50/60Hz LVDS
C225
0.047uF
C221
0.047uF
C213
0.047uF
C4038
0.1uF
CK-_HDMI2
D2-_HDMI1
DSUB_B+
TP210
C222
0.047uF
C4046
0.1uF
SC1_R+/COMP1_Pr+
R242
68
L215
BLM18PG121SN1D
R202
100
BOOSTER_OPT
R210
100
OPT
R227
1K
SC1_G+/COMP1_Y+
R211
1K
PHM_ON
R4014
1K
1/16W
1%
C218
0.047uF
X201
24MHz
C4065
0.022uF
16V
C4062
0.1uF
D0-_HDMI2
C220
0.047uF
R4023
10K
TP201
C247
2.2uF OPT
R255
33
AU25
R250
33
MIU1VDDC
MODEL_OPT_2
L204
BLM18PG121SN1D
AVDD_DDR0
+2.5V_Normal
SC1_SOG_IN
MODEL_OPT_5
C217
1000pF
SC1_B+/COMP1_Pb+
R4003
47
R4025 22
L203
5.6uH
CM2012F5R6KT
C288
0.1uF
R4020
10K
C4007
0.1uF
OPT
R215
1K
OPT
C4017
0.1uF
SCART1_Rout
AVDD2P5
R289
100
DDC_SDA_1
C4031
0.1uF
R207
1K
HD
C239
2.2uF
LED_DRIVER_D/L_SDA
R291
22
FULL_NIM
R256
68
TP203
R245
33
MIU0VDDC
AUD_LRCH
C4024
0.1uF
R237
33
HP_ROUT
R206
1K
FHD
C216
0.047uF
D1+_HDMI2
MODEL_OPT_5
C230
0.047uF
C244
2.2uF
C4003
0.1uF
+1.26V_VDDC
C4057
0.047uF
R239
33
C207
0.047uF
AVDD_DDR0
C289
10uF
C258
0.1uF
C4063
10uF
R296
100
C234
2.2uF
OPT
C232
0.047uF
C295
0.1uF
IF_P_MSTAR
MODEL_OPT_0
IF_AGC_SEL
C227
0.047uF
C287
10uF
C262
27pF
D0+_HDMI2
TP211
C272
4.7uF
C4009
0.1uF
C294
0.1uF
C4020
0.1uF
OPT
D1-_HDMI2
AUD_MASTER_CLK_0
SPDIF_OUT
C211
0.047uF
+1.5V_DDR
C215
0.047uF
MODEL_OPT_6
TP205
SOC_RESET
C246
2.2uF OPT
TU_SIF
SC1/COMP1_R_IN
R287
1M
CK+_HDMI1
L219
BLM18PG121SN1D
C4066
10uF
AVDD_DDR0
AVDD2P5
10uF
C293 OPT
LED_DRIVER_D/L_SCL
R295
1K
OPT
DDC_SCL_2
HPD1
R233
68
C226
0.047uF
PC_L_IN
TP207
R4015
1K
1/16W
1%
R228
33
R246
33
IF_AGC_MAIN
C4012
0.1uF
R253
33
MODEL_OPT_3
AMP_SCL
AV_CVBS_IN2
C241
0.1uF
C4025
0.1uF
R294
1K
100/120Hz LVDS
C4027
0.1uF
R214
1K
OPT
DSUB_G+
C206
0.047uF
R244
33
L212
BLM18PG121SN1D
NEC_SCL
+1.26V_VDDC
AVDD2P5
NEC_SDA
R240
68
DEMOD_SDA
IF_N_MSTAR
R229
68
C233
0.047uF
SC1/COMP1_L_IN
+2.5V_Normal
L202
BLM18SG121TN1D 
C212
0.047uF
R241
33
DTV/MNT_VOUT
C219
0.047uF
C297
0.1uF
OPT
C281
10uF
OPT
TU_SDA
SC1_CVBS_IN
AVDD2P5
DEMOD_SCL
C4002
0.1uF
C4015
0.1uF
OPT
CK-_HDMI1
MIU0VDDC
TP208
C237
2.2uF
C257
0.1uF
10uF
C284
COMP2_L_IN
L205
5.6uH
CM2012F5R6KT
LNA2_CTL
C229
0.047uF
R204
100
OPT
+3.3V_Normal
+1.26V_VDDC
TP204
DDC_SCL_1
C205
0.047uF
R238
68
L209
BLM18PG121SN1D
R251
33
AVDD25_PGA
R4002
47
COMP2_Pr+
R203
100
RF_SW_OPT
COMP2_Y+
C236
2.2uF
10uF
C228
R4006
10K
C4036
0.1uF
OPT
C4064
0.1uF
VDD33
AMP_SDA
C243
2.2uF
R209
1K
NON_DVB_T2
CK+_HDMI2
C264
1000pF
OPT
C261
27pF
DSUB_VSYNC
C4023
0.1uF
R4024 22
AV_CVBS_IN2
R298
100
OPT
R254
68
C250
0.1uF
C224
1000pF
C203
1000pF
OPT
SC1_ID
C4059
2.2uF
+3.3V_Normal
C249
4.7uF
MVREF
R230
33
C268
4.7uF
C4018
10uF
C278
10uF
C256
0.1uF
L211
BLM18PG121SN1D
C235
2.2uF
OPT
C296
0.1uF
TP206
MIU1VDDC
R232
33
R208
1K
DVB_T2
R252
68
C280
0.1uF
LGE107DC-RP [S7M+ DIVX/MS10]
IC101
S7M-PLUS_DivX_MS10
A_RXCP
F1
A_RXCN
F2
A_RX0P
G2
A_RX0N
G3
A_RX1P
H3
A_RX1N
G1
A_RX2P
H1
A_RX2N
H2
DDCDA_DA/GPIO24
F5
DDCDA_CK/GPIO23
F4
HOTPLUGA/GPIO19
E6
B_RXCP
D3
B_RXCN
C1
B_RX0P
D1
B_RX0N
D2
B_RX1P
E2
B_RX1N
E3
B_RX2P
F3
B_RX2N
E1
DDCDB_DA/GPIO26
D4
DDCDB_CK/GPIO25
E4
HOTPLUGB/GPIO20
D5
C_RXCP
AA2
C_RXCN
AA1
C_RX0P
AB1
C_RX0N
AA3
C_RX1P
AB3
C_RX1N
AB2
C_RX2P
AC2
C_RX2N
AC1
DDCDC_DA/GPIO28
AB4
DDCDC_CK/GPIO27
AA4
HOTPLUGC/GPIO21
AC3
D_RXCP
A2
D_RXCN
A3
D_RX0P
B3
D_RX0N
A1
D_RX1P
B1
D_RX1N
B2
D_RX2P
C2
D_RX2N
C3
DDCDD_DA/GPIO30
B4
DDCDD_CK/GPIO29
C4
HOTPLUGD/GPIO22
E5
CEC/GPIO5
D6
HSYNC0
G5
VSYNC0
G6
RIN0P
K1
RIN0M
L3
GIN0P
K3
GIN0M
K2
BIN0P
J3
BIN0M
J2
SOGIN0
J1
HSYNC1
G4
VSYNC1
H6
RIN1P
K5
RIN1M
K4
GIN1P
J4
GIN1M
K6
BIN1P
H4
BIN1M
J6
SOGIN1
J5
HSYNC2
H5
RIN2P
N3
RIN2M
N2
GIN2P
M2
GIN2M
M1
BIN2P
L2
BIN2M
L1
SOGIN2
M3
CVBS0P
N4
CVBS1P
N6
CVBS2P
L4
CVBS3P
L5
CVBS4P
L6
CVBS5P
M4
CVBS6P
M5
CVBS7P
K7
CVBS_OUT1
M6
CVBS_OUT2
M7
VCOM0
N5
VIFP
W2
VIFM
W1
IP
V2
IM
V1
SSIF/SIFP
Y2
SSIF/SIFM
Y1
QP
U3
QM
V3
IFAGC
Y5
RF_TAGC
Y4
TGPIO0/UPGAIN
U1
TGPIO1/DNGAIN
U2
TGPIO2/I2C_CLK
R3
TGPIO3/I2C_SDA
T3
XTALIN
T2
XTALOUT
T1
SPDIF_IN/GPIO177
G14
SPDIF_OUT/GPIO178
G13
DM_P0
B7
DP_P0
A7
DM_P1
AF17
DP_P1
AE17
I2S_IN_BCK/GPIO175
F14
I2S_IN_SD/GPIO176
F13
I2S_IN_WS/GPIO174
F15
I2S_OUT_BCK/GPIO181
D20
I2S_OUT_MCK/GPIO179
E20
I2S_OUT_SD/GPIO182
D19
I2S_OUT_SD1/GPIO183
F18
I2S_OUT_SD2/GPIO184
E18
I2S_OUT_SD3/GPIO185
D18
I2S_OUT_WS/GPIO180
E19
LINE_IN_0L
N1
LINE_IN_0R
P3
LINE_IN_1L
P1
LINE_IN_1R
P2
LINE_IN_2L
P4
LINE_IN_2R
P5
LINE_IN_3L
R6
LINE_IN_3R
T6
LINE_IN_4L
U5
LINE_IN_4R
V5
LINE_IN_5L
U6
LINE_IN_5R
V6
LINE_OUT_0L
U4
LINE_OUT_2L
W3
LINE_OUT_3L
W4
LINE_OUT_0R
V4
LINE_OUT_2R
Y3
LINE_OUT_3R
W5
MIC_DET_IN
R4
MICCM
T5
MICIN
R5
AUCOM
T4
VRM
P7
VAG
R7
VRP
P6
HP_OUT_1L
R1
HP_OUT_1R
R2
ET_RXD0
E21
ET_TXD0
E22
ET_RXD1
D21
ET_TXD1
F21
ET_REFCLK
E23
ET_TX_EN
D22
ET_MDC
F22
ET_MDIO
D23
ET_CRS
F23
AVLINK
F8
IRINT
G8
TESTPIN
K8
RESET
A4
U3_RESET
Y17
LGE107DC-RP [S7M+ DIVX/MS10]
IC101
S7M-PLUS_DivX_MS10
VDDC_1
H11
VDDC_2
H12
VDDC_3
H13
VDDC_4
H14
VDDC_5
H15
VDDC_6
J12
VDDC_7
J13
VDDC_8
J14
VDDC_9
J15
VDDC_10
J16
VDDC_11
L18
A_DVDD
H16
B_DVDD
K19
FRC_VDDC_0
L19
FRC_VDDC_1
M18
FRC_VDDC_2
M19
FRC_VDDC_3
N18
FRC_VDDC_4
N19
FRC_VDDC_5
N20
FRC_VDDC_6
P18
FRC_VDDC_7
P19
FRC_VDDC_8
P20
U3_DVDD_DDR
Y12
AVDD1P2
J11
DVDD_NODIE
L7
AVDD2P5_ADC_1
H7
AVDD2P5_ADC_2
J7
AVDD25_REF
J8
AVDD_AU25
L8
PVDD_1
W15
PVDD_2
Y15
AVDD25_PGA
U8
AVDD_NODIE
M8
AVDD_DVI_1
N9
AVDD_DVI_2
P9
AVDD3P3_CVBS
N8
AVDD_DMPLL
P8
AVDD_AU33
T7
AVDD_EAR33
U7
AVDD33_T
T9
VDDP_1
R8
VDDP_2
R9
VDDP_3
T8
FRC_VD33_2_1
V20
FRC_VD33_2_2
W20
FRC_AVDD_RSDS_1
U19
FRC_AVDD_RSDS_2
U20
FRC_AVDD_RSDS_3
V19
FRC_AVDD
W19
FRC_AVDD_LPLL
U18
FRC_AVDD_MPLL
T20
FRC_VDD33_DDR
Y14
AVDD_MEMPLL
R19
FRC_AVDD_MEMPLL
W14
AVDD_DDR0_D_1
D15
AVDD_DDR0_D_2
D16
AVDD_DDR0_D_3
E15
AVDD_DDR0_D_4
E16
AVDD_DDR0_C
E17
AVDD_DDR1_D_1
F16
AVDD_DDR1_D_2
F17
AVDD_DDR1_D_3
G16
AVDD_DDR1_D_4
G17
AVDD_DDR1_C
H17
FRC_AVDD_DDR_D_1
AB11
FRC_AVDD_DDR_D_2
AB12
FRC_AVDD_DDR_D_3
AC11
FRC_AVDD_DDR_D_4
AC12
FRC_AVDD_DDR_C
AA12
MVREF
G15
NC_1
Y7
NC_2
Y8
GND_1
G18
GND_2
H9
GND_3
H10
GND_4
H18
GND_5
H19
GND_6
J10
GND_7
J17
GND_8
J18
GND_9
J19
GND_10
K9
GND_11
K10
GND_12
K11
GND_13
K12
GND_14
K13
GND_15
K14
GND_16
K15
GND_17
K16
GND_18
K17
GND_19
K18
GND_20
L9
GND_21
L10
GND_22
L11
GND_23
L12
GND_24
L13
GND_25
L14
GND_26
L15
GND_27
L16
GND_28
L17
GND_29
M9
GND_30
M10
GND_31
M11
GND_32
M12
GND_33
M13
GND_34
M14
GND_35
M15
GND_36
M16
GND_37
M17
GND_38
N10
GND_39
N11
GND_40
N12
GND_41
N13
GND_42
N14
GND_43
N15
GND_44
N16
GND_45
N17
GND_46
P10
GND_47
P11
GND_48
P12
GND_49
P13
GND_50
P14
GND_51
P15
GND_52
P16
GND_53
P17
GND_54
R10
GND_55
R11
GND_56
R12
GND_57
R13
GND_58
R14
GND_59
R15
GND_60
R16
GND_61
R17
GND_62
R18
GND_63
T10
GND_64
T11
GND_65
T12
GND_66
T13
GND_67
T14
GND_68
T15
GND_69
T16
GND_70
T17
GND_71
T18
GND_72
T19
GND_73
U10
GND_74
U11
GND_75
U12
GND_76
U13
GND_77
U14
GND_78
U15
GND_79
U16
GND_80
U17
GND_81
V7
GND_82
V8
GND_83
V9
GND_84
V10
GND_85
V11
GND_86
V12
GND_87
V13
GND_88
V14
GND_89
V15
GND_90
V16
GND_91
V17
GND_92
V18
GND_93
W7
GND_94
W8
GND_95
W9
GND_96
W10
GND_97
W11
GND_98
W12
GND_99
W13
GND_100
W16
GND_101
W17
GND_102
W18
GND_103
Y13
GND_104
Y18
GND_105
AA13
GND_106
AB13
GND_107
AC13
GND_FU
J9
PGA_VCOM
U9
GND_108
D17
GND_109
H23
GND_110
AF13
C277
0.1uF
C299
0.1uF
C4006
0.1uF
C4013
0.1uF
C248
0.047uF
R213
0
OPT
R216
0
OPT
EXT_R_AMP
C201
0.01uF
R217
22K
C200
0.01uF
R200
22K
EXT_L_AMP
C4016
0.1uF
C286
0.1uF
OPT
VDD33
L206
BLM18PG121SN1D
FRC_LPLL
FRC_LPLL
PI_SDA
PI_SCL
DDC_SCL_4
D2+_HDMI4
D2-_HDMI4
DDC_SDA_4
CK-_HDMI4
HPD4
D1+_HDMI4
D0-_HDMI4
CK+_HDMI4
D0+_HDMI4
D1-_HDMI4
D18
MODEL_OPT_3
3D
reserved for FRC      : LOW  HIGH
HD
B6
AU33:31mA
TU/DEMOD_I2C
E18
AUDIO OUT
CVBS In/OUT
U5_EXTERNALBOOT        :HIGH HIGH
MODEL_OPT_0
Close to MSTAR
FRC_MPLL:4mA
MODEL_OPT_5
AVDD_DDR1:55mA
AVDD_DMPLL/AVDD_NODIE:7.362mA
VDD33_T/VDDP/U3_VD33_2:47mA
100/120Hz LVDS
MODEL_OPT_6
DTV_IF
F9
Normal Power 3.3V
LCD
MODEL OPTION
OLED
MODEL_OPT_2
Close to MSTAR
HDMI
B/T USB
Normal 2.5V
AVDD2P5/ADC2P5:162mA
RSDS Power OPT
DSUB
50/60Hz LVDS
PIN NAME
MODEL_OPT_1
I2S_I/F
Close to MSTAR
NO FRC
FRC_HW_OPT
PIN NO.
DDR3 1.5V
AUDIO IN
U3_INTERNAL           : HIGH LOW
VDDC 1.26V
LOW
H/P OUT
HIGH
AVDD_DDR0:55mA
Ready
VDDC : 2026mA
AVDD25_PGA:13mA
G19
C5
MODEL_OPT_4
SCART1_RGB/COMP1
SIDE USB
FHD
default
MODEL OPTION
VDD33_DVI:163mA
F7
NO_FRC                : LOW  LOW
2D
AVDD_MEMPLL:24mA
Delete CHB_CVBS_IN
Close to MSTAR
OPT_0
AU25:10mA
-->In case of GP2, This port was used for GIP/NON_GIP
ANALOG SIF
COMP2
PHM_ON
OPT_4
PHM_OFF
--> This option is only applied in EU.
    In case of NON_EU, default value set LOW.
GP2R
MAIN2, HW OPT
2
20101023
--> MODEL_OPT_5, MODEL_OPT_6
   : Only 3D_SG GPIO OUTPUT CONTROL 
FRC_LPLL:13mA
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