Read LG 42LH250C (CHASSIS:LD91Z) Service Manual 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.
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.
SC1_CVBS_IN
0 0 2 : D 2 3 ; 0 0 9 : I 5
FE_VMAIN
0 1 0 : Z 8
SC1_R_IN
0 0 9 : I 1 2
SC1_FB
0 0 9 : I 7
SC1_L_IN
0 0 9 : I 1 1
SCART1_Rout
0 0 9 : E 2 3
SCART1_Lout
0 0 9 : E 2 3
SPDIF_OUT
004:V3
TV/DTV_VOUT
009:O6
SC1_ID
009:M9
SC1_CVBS_IN
0 0 2 : E 1 8 ; 0 0 9 : I 5
100
R228
100
R209
2 . 2 u F
C230
2 . 2 u F
C229
DSUB_HSYNC
004:D21
DSUB_VSYNC
004:D21
390
1%
R229
Check
FE_SIF
010:Q10
47
R241
MS_LRCK
007:K12
MS_LRCH
007:K11
AUDIO_MASTER_CLK
007:K6
MS_SCK
007:K12
22
R231
22
R232
22
R233
22
R234
+3.3V
47
R242
+3.3V_AVDD
+1.8V_DDR
+3.3V_S6
BLM18PG121SN1D
L209
+3.3V
+3.3V_S6
BLM18PG121SN1D
L206
+3.3V_S6
+3.3V_S6
BLM18PG121SN1D
L210
+3.3V_VDDP
+3.3V
+1.8V_DDR
2 . 2 u F
C2006
2 . 2 u F
C2007
+3.3V_AVDD_MPLL
+1.26V_VDDC
+1.26V_VDDC
+3.3V_VDDP
100
R204
47
R210
47
R215
47
R216
47
R211
47
R213
47
R217
47
R212
47
R218
47
R206
OPT
47
R220
47
R224
47
R205
47
R219
47
R226
OPT
47
R223
47
R222
47
R227
22
R246
22
R245
0 . 0 4 7 u F
C222
0 . 0 4 7 u F
C214
0 . 0 4 7 u F
C201
0 . 0 4 7 u F
C217
0 . 0 4 7 u F
C221
0 . 0 4 7 u F
C210
0 . 0 4 7 u F
C207
0 . 0 4 7 u F
C216
0 . 0 4 7 u F
C206
0 . 0 4 7 u F
C204
0 . 0 4 7 u F
C212
0 . 0 4 7 u F
C200
0 . 0 4 7 u F
C218
0 . 0 4 7 u F
C205
0 . 0 4 7 u F
C215
0 . 0 4 7 u F
C213
0 . 0 4 7 u F
C202
0 . 0 4 7 u F
C211
0 . 1 u F
C231
0 . 1 u F
C232
0 . 1 u F
C224
2 . 2 u F
C2008
2 . 2 u F
C2009
2 . 2 u F
C2011
OPT
2 . 2 u F
C2012
OPT
2 . 2 u F
C2013
2 . 2 u F
C2014
2 . 2 u F
C2015
2 . 2 u F
C2016
0 . 0 4 7 u F
C2024
47
R235
0 . 0 4 7 u F
C2019
47
R236
100
R237
100
R238
100
R239
100
R240
100
R250
100
R251
22K
R252
22K
R253
22K
R254
22K
R255
22K
R256
22K
R257
0.01uF
C2018
0.01uF
C2021
0.01uF
C2023
0.01uF
C2017
0.01uF
C2022
0.01uF
C2020
22pF
OPT
C239
22pF
OPT
C236
22pF
OPT
OPT
C238
22pF
OPT
C237
10K
R243
10K
R244
CK-_HDMI1
0 0 6 : J 8
DDC_SDA_1
0 0 6 : J 7 ; 0 0 6 : J 1 7
D2+_HDMI1
0 0 6 : J 1 1
D1+_HDMI1
0 0 6 : J 1 0
D1-_HDMI1
0 0 6 : J 1 0
CK+_HDMI1
0 0 6 : J 9
D0+_HDMI1
0 0 6 : J 1 0
D0-_HDMI1
0 0 6 : J 9
DDC_SCL_1
0 0 6 : J 7 ; 0 0 6 : J 1 7
HPD1
006:K5
D2-_HDMI1
0 0 6 : J 1 1
D0-_HDMI2
006:X9
D2-_HDMI2
006:X11
CK-_HDMI2
006:X8
D0+_HDMI2
006:X9
HPD2
006:X5
D2+_HDMI2
006:X11
DDC_SCL_2
0 0 6 : X 7 ; 0 0 6 : X 1 7
CK+_HDMI2
006:X9
D1+_HDMI2
006:X10
DDC_SDA_2
0 0 6 : X 7 ; 0 0 6 : X 1 7
D1-_HDMI2
006:X10
HDMI_CEC
006:AF11
DSUB_R
004:D25
DSUB_G
004:D23
DSUB_B
004:D22
COMP_Pr
004:H11
COMP_Pb
004:H11
COMP_Y
004:H10
SC1_R
0 0 9 : I 7
SC1_B
0 0 9 : I 1 0
SC1_G
0 0 9 : I 8
PC_L_IN
004:R4
PC_R_IN
004:R3
COMP_L_IN
004:H12
COMP_R_IN
004:H13
LVA_2M
0 1 1 : C 1 5 ; 0 1 1 : O 9 ; 0 1 1 : T 1 1
LVB_3M
0 1 1 : C 1 2 ; 0 1 1 : K 8 ; 0 1 1 : T 9
LVB_2P
0 1 1 : C 1 1 ; 0 1 1 : K 9 ; 0 1 1 : T 7
LVB_0M
0 1 1 : C 9 ; 0 1 1 : K 1 1 ; 0 1 1 : T 6
LVA_4M
011:C18
LVB_1M
0 1 1 : C 1 0 ; 0 1 1 : K 1 0 ; 0 1 1 : T 6
LVA_CKP
0 1 1 : C 1 6 ; 0 1 1 : O 1 0 ; 0 1 1 : T 1 2
LVB_0P
0 1 1 : C 9 ; 0 1 1 : K 1 1 ; 0 1 1 : T 6
LVA_1M
0 1 1 : C 1 5 ; 0 1 1 : O 8 ; 0 1 1 : T 1 0
LVA_0P
0 1 1 : C 1 4 ; 0 1 1 : O 8 ; 0 1 1 : T 9
LVB_3P
0 1 1 : C 1 2 ; 0 1 1 : K 7 ; 0 1 1 : T 9
LVA_4P
011:C18
LVA_3P
0 1 1 : C 1 7 ; 0 1 1 : O 1 1 ; 0 1 1 : T 1 2
LVA_CKM
0 1 1 : C 1 6 ; 0 1 1 : O 1 0 ; 0 1 1 : T 1 2
LVB_4M
011:C13
LVB_1P
0 1 1 : C 1 0 ; 0 1 1 : K 1 0 ; 0 1 1 : T 7
LVB_4P
011:C13
LVA_0M
0 1 1 : C 1 4 ; 0 1 1 : O 7 ; 0 1 1 : T 9
LVB_CKP
0 1 1 : C 1 2 ; 0 1 1 : K 8 ; 0 1 1 : T 8
LVA_2P
0 1 1 : C 1 5 ; 0 1 1 : O 9 ; 0 1 1 : T 1 1
LVA_3M
0 1 1 : C 1 7 ; 0 1 1 : O 1 1 ; 0 1 1 : T 1 2
LVB_CKM
0 1 1 : C 1 1 ; 0 1 1 : K 9 ; 0 1 1 : T 8
LVA_1P
0 1 1 : C 1 5 ; 0 1 1 : O 8 ; 0 1 1 : T 1 0
LVB_2M
0 1 1 : C 1 0 ; 0 1 1 : K 9 ; 0 1 1 : T 7
22
R258
EXCEPT_22LU50
22
R259
EXCEPT_22LU50
22
R261
22
R260
22
R264
22
R262
EXCEPT_22LU50
22
R263
EXCEPT_22LU50
22
R265
22
R267
22
R268
22
R269
22
R270
22
R271
22
R272
22
R273
22
R275
22
R276
22
R277
22
R278
22
R279
22
R280
22
R281
22
R282
22
R283
100
R247
+3.3V_S6
10uF 6.3V
C225
10uF
C2044
10uF
C2043
10uF
6.3V
6.3V
C2025
100
R284
OPT
470
R214
470
R225
470
R221
100
R274
OPT
1000pF
C209
1000pF
C208
1000pF
C203
0
R208
0
R201
0
R202
0
R207
0 . 1 u F
C223
0 . 1 u F
C226
0 . 1 u F
C2031
0 . 1 u F
C246
0 . 1 u F
C2004
0 . 1 u F
C2026
0 . 1 u F
C247
0 . 1 u F
C252
0 . 1 u F
C2034
0 . 1 u F
C2042
0 . 1 u F
C297
0 . 1 u F
C259
0 . 1 u F
C275
0 . 1 u F
C249
0 . 1 u F
C2038
0 . 1 u F
C264
0 . 1 u F
C2035
0 . 1 u F
C245
0 . 1 u F
C248
0 . 1 u F
C257
0 . 1 u F
C258
0 . 1 u F
C241
0 . 1 u F
C281
0 . 1 u F
C2005
0 . 1 u F
C2003
0 . 1 u F
C296
0 . 1 u F
C2041
0 . 1 u F
C265
0 . 1 u F
C2036
0 . 1 u F
C251
0 . 1 u F
C2001
0 . 1 u F
C289
0 . 1 u F
C253
0 . 1 u F
C2039
0 . 1 u F
C283
0 . 1 u F
C243
0 . 1 u F
C2000
0 . 1 u F
C294
0 . 1 u F
C276
0 . 1 u F
C242
0 . 1 u F
C2040
0 . 1 u F
C277
0 . 1 u F
C254
0 . 1 u F
C291
0 . 1 u F
C2032
0 . 1 u F
C2033
0 . 1 u F
C2037
0 . 1 u F
C266
0 . 1 u F
C250
0 . 1 u F
C244
0 . 1 u F
C2030
0 . 1 u F
C262
0 . 1 u F
C293
0 . 1 u F
C2029
0 . 1 u F
C273
0 . 1 u F
C256
0 . 1 u F
C279
0 . 1 u F
C271
0 . 1 u F
C260
0 . 1 u F
C284
0 . 1 u F
C263
0 . 1 u F
C267
0 . 1 u F
C274
0 . 1 u F
C269
0 . 1 u F
C286
0 . 1 u F
C234
0 . 1 u F
C235
0 . 1 u F
C233
100
R203
100
R230
100
R266
1uF
C227
10uF
C2027
4 . 7 u F
C228
EXT_L_AMP
0 0 7 : Z 2 2
EXT_R_AMP
0 0 7 : Z 2 3
HP_ROUT
007:G20
HP_LOUT
007:H17
IC100
LGE3369A (Saturn6 Non RM)
RXACKP
F1
RXACKN
F2
RXA0P
G2
RXA0N
G3
RXA1P
H3
RXA1N
G1
RXA2P
H1
RXA2N
H2
DDCD_A_DA
A1
DDCD_A_CK
B2
HOTPLUG_A
A2
RXBCKP
C3
RXBCKN
B1
RXB0P
C1
RXB0N
C2
RXB1P
D2
RXB1N
D3
RXB2P
E3
RXB2N
D1
DDCD_B_DA
E1
DDCD_B_CK
F3
HOTPLUG_B
E2
RXCCKP
AE8
RXCCKN
AD8
RXC0P
AD9
RXC0N
AF8
RXC1P
AF9
RXC1N
AE9
RXC2P
AE10
RXC2N
AD10
DDCD_C_DA
AE7
DDCD_C_CK
AF7
HOTPLUG_C
AD7
CEC
J 3
HSYNC0/SC1_ID
N2
VSYNC0/SC1_FB
N1
RIN0P/SC1_R
P2
GIN0P/SC1_G
R3
BIN0P/SC1_B
R1
SOGIN0/SC1_CVBS
P3
RINM
P1
BINM
T3
GINM
R2
HSYNC1/DSUB_HSYNC
K3
VSYNC1/DSUB_VSYNC
K2
RIN1P/DSUB_R
L1
GIN1P/DSUB_G
L3
BIN1P/DSUB_B
K1
SOGIN1
L2
RIN2P/COMP_PR+
V1
GIN2P/COMP_Y+
V2
BIN2P/COMP_PB+
U1
SOGIN2
V3
VSYNC2
J 5
CVBS1/SC1_CVBS
U3
CVBS2/SC2_CVBS
U2
CVBS3/SIDE_CVBS
T1
VCOM1
T2
CVBS4/S-VIDEO_Y
M1
CVBS6/S-VIDEO_C
M2
CVBS5
N3
CVBS7
M3
CVBS0/RF_CVBS
W1
VCOM0
Y3
CVBSOUT0/SC2_MNTOUT
Y2
CVBSOUT1
AA2
LVA0P
AE16
LVA0M
AD16
LVA1P
AD15
LVA1M
AF16
LVA2P
AF15
LVA2M
AE15
LVA3P
AD13
LVA3M
AF14
LVA4P
AF13
LVA4M
AE13
LVACKP
AE14
LVACKM
AD14
LVB0P
AE20
LVB0M
AD20
LVB1P
AD19
LVB1M
AF20
LVB2P
AF19
LVB2M
AE19
LVB3P
AD17
LVB3M
AF18
LVB4P
AF17
LVB4M
AE17
LVBCKP
AE18
LVBCKM
AD18
AUR0
AA3
AUL0
Y1
AUR1
AE1
AUL1
AF3
AUR2
AE3
AUL2
AE2
AUR3
AA1
AUL3
AB1
AUR4
AB2
AUL4
AC2
AUR5
AB3
AUL5
AC3
SIF0P
W3
SIF0M
W2
SPDIF_IN
F11
SPDIF_OUT
E9
AUOUTR0/HP_ROUT
AF1
AUOUTL0/HP_LOUT
AF2
AUOUTR1/SC1_ROUT
AD3
AUOUTL1/SC1_LOUT
AD1
AUOUTR2/SC2_ROUT
AC1
AUOUTL2/SC2_LOUT
AD2
I2S_OUT_MCK
A8
I2S_OUT_WS
B7
I2S_OUT_BCK
C7
I2S_OUT_SD
D8
I2S_IN_SD
C8
VCLAMP
K4
REFP
H4
REFM
J 4
REXT
G4
AUCOM
AE5
AUVRM
AE4
AUVRP
AF4
AUVAG
AD4
LGE3369A (Saturn6 Non RM)
IC100
VDDC_1
D16
VDDC_2
D17
VDDC_3
D18
VDDC_4
D19
VDDC_5
D20
VDDC_6
H18
VDDC_7
H19
VDDC_8
H20
VDDC_9
J 2 0
VDDC_10
K20
VDDC_11
L20
VDDC_12
M20
VDDC_13
P7
VDDC_14
R7
VDDC_15
T7
VDDC_16
T22
VDDC_17
U7
VDDC_18
U20
VDDC_19
U22
VDDC_20
V7
VDDC_21
V22
VDDC_22
W11
VDDC_23
W12
VDDC_24
W19
VDDC_25
W20
VDDC_26
W22
VDDC_27
Y22
VDDP_1
H9
VDDP_2
H10
VDDP_3
H11
VDDP_4
H12
VDDP_5
N20
VDDP_6
P20
VDDP_7
W9
VDDP_8
W10
AVDD_AU
W7
AVDD_DDR_1
G12
AVDD_DDR_2
G13
AVDD_DDR_3
H13
AVDD_DDR_4
H14
AVDD_DDR_5
H15
AVDD_DDR_6
H16
AVDD_DDR_7
W14
AVDD_DDR_8
W15
AVDD_DDR_9
W16
AVDD_DDR_10
W17
AVDD_DDR_11
W18
AVDD_MEMPLL_1
H17
AVDD_MEMPLL_2
T20
AVDD_MEMPLL_3
V20
AVDD_LPLL
R20
AVDD_MPLL
H7
AVDD_33_1
J 7
AVDD_33_2
K7
AVDD_33_3
L7
AVDD_33_4
M7
AVDD_33_5
N7
AVDD_DM
W8
AVDD_USB
H8
GND_2
E16
GND_3
E17
GND_4
E18
GND_5
F7
GND_6
L9
GND_7
L10
GND_8
L11
GND_9
L12
GND_10
L13
GND_11
L14
GND_12
L15
GND_13
L16
GND_14
L17
GND_15
L18
GND_16
M9
GND_17
M10
GND_18
M11
GND_19
M12
GND_20
M13
GND_21
M14
GND_22
M15
GND_23
M16
GND_24
M17
GND_25
M18
GND_26
N4
GND_27
N9
GND_28
N10
GND_29
N11
GND_30
N12
GND_31
N13
GND_32
N14
GND_33
N15
GND_34
N16
GND_35
N17
GND_36
N18
GND_37
P4
GND_38
P9
GND_39
P10
GND_40
P11
GND_41
P12
GND_42
P13
GND_43
P14
GND_44
P15
GND_45
P16
GND_46
P17
GND_47
P18
GND_48
R4
GND_49
R9
GND_50
R10
GND_51
R11
GND_52
R12
GND_53
R13
GND_54
R14
GND_55
R15
GND_56
R16
GND_57
R17
GND_58
R18
GND_59
T5
GND_60
T9
GND_61
T10
GND_62
T11
GND_63
T12
GND_64
T13
GND_65
T14
GND_66
T15
GND_67
T16
GND_68
T17
GND_69
T18
GND_70
U5
GND_71
W13
GND_72
Y21
GND_73
AA23
C l o s e t o I C
a s c l o s e a s p o s s i b l e
HDMI
SCART_RGB
DSUB
CVBS
TV/MNT
2 1 1
MAIN_2
COMP
AUDIO IN
LVDS OUT
AUDIO OUT
VDDC : 970mA
VDDP : 102.3mA
AVDD_AU : 36.11mA
AVDD_MEMPLL : 23.77mA
AVDD_LPLL : 4.69mA
AVDD_33 : 281mA
AVDD_DM : 0.03mA
AVDD_OTG : 22.96mA
2 0 0 9 . 0 6 . 0 9
EAX61353501
COMMERCIAL_LITE LH250
AIN_2
Click on the first or last page to see other 42LH250C (CHASSIS:LD91Z) service manuals if exist.