Read LG 26LG40 (CHASSIS:LA89D) Service Manual online
0
R971
0.01uF
C916
MBW3216-501TF
L902
+5V_GENERAL
47uF
16V
C917
22
R992
COMP_SEL
COMP_Pb
001:B14
22
R993
22
R991
COMP_Y
001:B13
22 R990
COMP_Pr
001:B13
MC74HC4066ADR2G
IC901
3
YB
2
YA
4
XB
1
XA
6
CONTROL_C
5
CONTROL_B
7
GND
8
XC
9
YC
10
YD
11
XD
12
CONTROL_D
13
CONTROL_A
14
VCC
680K
R909
680K
R910
+5V_GENERAL
COMP_L_IN
001:C8
+5V_GENERAL
680K
R913
680K
R912
4.7K
R908
COMP_SEL
+5V_GENERAL
0
R911
+5V_GENERAL
4.7K
R934
0
R933
+5V_GENERAL
COMP_SEL
+5V_GENERAL
680K
R941
680K
R940
COMP_R_IN
001:C7
680K
R935
680K
R936
+5V_GENERAL
+3.3V_MULTI
1K
R939
SPDIF_OUT
001:N3
0.1uF
C905
F i b e r O p t i c
JST1223-001
JK902
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
READY
ZD900
GND
TP918
100
R921
TP917
COMP_SEL
TP903
TP914
GND
100
R905
100
R906
TP902
NTP_RESET
10uF
16V
C903
10K
R920
+5V_GENERAL
100
R903
SIDEAV_SW
006:J6
TP919
100
R923
100
R924
HDMI_SW_EQ
008:Y13
100
R922
TP915
TP906
0.1uF
16V
C904
MSCL
22
R902
TP907
TP901
100
R907
TP904
TP905
TP900
MSDA
22
R900
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.
STMAV340
IC903
3
2B
2
1C
4
2C
1
1B
6
3C
5
3B
7
4B
8
4C
9
GND
10
4A
11
3A
12
2A
13
1A
14
S
15
OE_N
16
VCC
8pF
50V
READY
C914
JP912
0.1uF
50V
C911
10K
READY
R986
22
R972
SCL_HDMI3
+5V_GENERAL
DDC_CTL
22
R973
SDA_HDMI3
4.7K
R984
POWER_HDMI3
JP913
8pF
50V
READY
C913
100
R988
4.7K
R974
0
R964
TMDS3_RX0+
TMDS3_RX2-
HPDCTRL3
TMDS3_RX2+
TMDS3_RXC+
TMDS3_RX0-
SCL_HDMI3
0
R963
DDC_SDA3
+3.3V_VDDP_ST
47K
R9
85
SDA_HDMI3
TMDS3_RX1-
0.1uF
50V
C910
1K
R961
POWER_HDMI3
47K
R E
A D
Y
R989
TMDS3_RXC-
TMDS3_RX1+
DDC_SCL3
47K
R E
A D
Y
R987
100
R975
0
READY
R962
0
READY
R949
120K
R953
M M
B D
3 01
L T
1 G
D912
BSS83
Q901
S
B
D
G
+3.3V_VDDP_ST
0
R960
USA
HDMI_CEC
HDMICEC
0
R
955
0
R
982
0
R
979
0
R
977
0
R
976
0
R
981
0
R
978
0
R
980
0
R
983
MNT_OUT_MUTE
5V_MNT
VSB_CTRL
ENKMC2838-T112
D913
A1
C
A2
RT1N141C-T112-1
Q900
E
B
C
2SC3052
Q902
E
B
C
UBW2012-121F
L900
KJA-ET-0-0032
JK903
14
N
C
1
3
CEC
5
DATA1_SHIELD
20
JACK_GND
1
2
CLK-
1
1
CLK_SHIELD
2
DATA2_SHIELD
1
9
HPD
1
8
+5V_POWER
1
0
CLK+
4
DATA1+
1
DATA2+
1
7
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
1
6
SDA
7
DATA0+
6
DATA1-
15
S
C
L
M62320FP
IC900
3
SDA
2
SCL
4
D0
1
SO
6
D2
5
D1
7
D3
8
GND
9
D4
10
D5
11
D6
12
D7
13
VDD
14
CS2
15
CS1
16
CS0
CAT24C02WI-GT3
IC902
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0.
1u
F
50V
C924
0.
1u
F
50V
C925
0.
1u
F
50V
C926
0.
1u
F
50V
C927
+5V_EDID
0
R901
TP1111
TP1114
0
R
914
0
R
915
0
R916
0
R917
0
R918
0
R919
COMP_R_IN_1
010:I14
COMP_L_IN_1
010:H14
DVDP_L_IN
010:T13
DVDP_R_IN
010:T14
COMP_SW1
010:D13
DVDP_Y
010:X8
COMP_Pr1
010:G19
COMP_Pb1
010:F19
COMP_Y1
010:E19
DVDP_Pr
010:X5
DVDP_Pb
010:X6
0
R937
MSTAR_SPDIF
0
READY
R904
SIGN1325
HIGH:COMP2
LOW :COMP1
SPDIF OUT
//NTP RESET : ACTIVE LOW
2007.12.26
SIDE_HDMI
∏
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