DOWNLOAD LG 55LE8500 / 55LE850N / 55LE8800 / 55LE8900 (CHASSIS:LD03E) Service Manual ↓ Size: 5.65 MB | Pages: 40 in PDF or view online for FREE

Model
55LE8500 55LE850N 55LE8800 55LE8900 (CHASSIS:LD03E)
Pages
40
Size
5.65 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55le8500-55le850n-55le8800-55le8900-chassis-ld03e.pdf
Date

LG 55LE8500 / 55LE850N / 55LE8800 / 55LE8900 (CHASSIS:LD03E) 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.
Tuner ( Full Nim )
FE_TS_DATA[5]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[6]
FE_TS_DATA[1]
FE_TS_DATA[7]
FE_TS_DATA[2]
FE_TS_DATA[0]
TU_SIF
C2724
0.1uF
16V
FE_TS_DATA[0-7]
+3.3V_TU
Q2701
ISA1530AC1
E
B
C
+3.3V_TU
R2744
1
C2729
22uF
10V
+1.2V_TU
R2721
100
Q2703
2SC3052
E
B
C
+2.5V_TU
SCL0_3.3V
C2721
0.1uF
16V
R2700
0
OPT
C2728
22uF
10V
+3.3V_NORMAL
TU_CVBS
R2720
0
Q2704
ISA1530AC1
E
B
C
FE_TS_VAL
R2743
4.7K
R2726
33
C2709
10uF
10V
OPT
C2712
18pF
50V
C2701
0.1uF
16V
C2706
0.1uF
16V
C2708
0.1uF
16V
OPT
FE_TS_SYNC
SDA2_3.3V
+3.3V_TU
R2738
0
C2723
10uF
10V
R2723
100K
R2740
2.2K
L2701
BLM18PG121SN1D
C2718
0.01uF
25V
Q2702
ISA1530AC1
E
B
C
R2722
0
CN
FE_TS_SERIAL
C2700
100pF
50V
R2725
0
EU
C2719
0.1uF
16V
SDA0_3.3V
C2704
100pF
50V
C2703
0.1uF
16V
+5V_TU
Q2700
2SC3052
OPT
E
B
C
TUNER_RESET
+5V_TU
C2707
0.1uF
16V
C2710
0.1uF
16V
R2749
82
+3.3V_TU
+2.5V_TU
C2702
0.1uF
16V
C2725
0.1uF
16V
R2701
0
R2727
33
C2705
100pF
50V
L2700
BLM18PG121SN1D
R2724
10K
OPT
+5V_TU
FE_TS_DATA_CLK
R2742
10K
+5V_TU
IF_AGC_SEL
C2726
0.1uF
16V
SCL2_3.3V
C2727
22uF
10V
C2722
0.1uF
16V
C2714
18pF
50V
R2736
0
+5V_TU
RF_SWITCH_CTL
R2755
10K
LNA2_CTL/BOSTER_CTL
R2754
0
CN
+5V_NORMAL
ATV_OUT
+5V_TU
Q2705
ISA1530AC1
E
B
C
C2730
22uF
10V
C2716
100pF
50V
C2715
22uF
10V
L2704
3.6uH
NR8040T3R6N
R2719
0
R2732
10K
R2718
10
1/10W
1%
L2703
CIC21J501NE
IC2701
MP2212DN
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
POWER_ON/OFF2_2
C2717
1uF
10V
0.1uF
C2731
L2702
CIC21J501NE
+3.3V_TU
+1.2V_TU
R2739
200
R2702
200
R2712
200
R2741
200
R2746
470
IC2700
AZ2940D-2.5TRE1
2
GND
3
VOUT
1
VIN
C2733
0.1uF
16V
C2720
0.1uF
16V
R2731
22K
1%
EU
R2713
75K
1/8W
1%
EU
R2729
33
R2728
33
C2711
10pF
50V
C2713
10pF
50V
C2734
0.1uF
16V
TU2701
TDFR-G135D
HORIZONTAL_NIM
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[5V]
4
NC[RF_AGC]
5
AS
6
SCL[A_DEMOD]
7
SDA[A_DEMOD]
8
NC(IF_TP)
9
SIF
10
NC
11
VIDEO
12
GND
13
1.2V
14
3.3V
15
RESET
16
2.5V
17
SCL[D_DEMOD]
18
SDA[D_DEMOD]
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2701-*1
TDFR-G155D
VERTICAL_NIM
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[5V]
4
NC[RF_AGC]
5
AS
6
SCL[A_DEMOD]
7
SDA[A_DEMOD]
8
NC(IF_TP)
9
SIF
10
NC
11
VIDEO
12
GND
13
1.2V
14
3.3V
15
RESET
16
2.5V
17
SCL[D_DEMOD]
18
SDA[D_DEMOD]
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
R2710
0
CN
R2716
0
CN
R2707
0
CN
R2705
0
CN
R2704
0
CN
R2709
0
CN
R2703
0
CN
R2706
0
CN
R2717
0
CN
R2711
0
CN
R2708
0
CN
R2713-*1
56K
1/8W
1%
CN
R2731-*1
0
1/16W
5%
CN
R2756-*1
30K
1/10W
1%
CN
TU2701-*2
TDFR-C155D
CN_VERTICAL_LGS8G85
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2701-*3
TDFR-C135D
CN_HORIZONTAL_LGS8G85
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
R2756
18K
1%
EU
C2735
22uF
10V
R2709-*1
47
EU
R2708-*1
47
EU
R2717-*1
47
EU
R2704-*1
47
EU
R2716-*1
47
EU
R2705-*1
47
EU
R2711-*1
47
EU
R2710-*1
47
EU
R2703-*1
47
EU
R2707-*1
47
EU
R2706-*1
47
EU
IC2702
NL17SZ08DFT2G
3
2
4
1
5
FE_TS_ERR
+3.3V_TU
FE_TS_VAL_ERR
R2758
47
R2757
0
CN
R2757-*1
47
EU
FE_TS_ERR
FE_TS_VAL
C2736
0.1uF
16V
TU2701-*4
TDFR-G055D
EU_VERTICAL_NIM_T2
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[5V]
4
NC[RF_AGC]
5
AS
6
SCL[A_DEMOD]
7
SDA[A_DEMOD]
8
NC(IF_TP)
9
SIF
10
NC
11
VIDEO
12
GND
13
1.2V
14
3.3V
15
RESET
16
2.5V
17
SCL[D_DEMOD]
18
SDA[D_DEMOD]
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2701-*5
TDFR-G035D
EU_HORIZONTAL_NIM_T2
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC(IF_TP)
9
SIF
10
NC_2
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL[D_DEMOD]
18
SDA[D_DEMOD]
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
close to TUNER
60mA
close to TUNER
Close to the tuner
OPTION : RF AGC
$0.11
CAN H-NIM/NIM TUNER for EU
200mA
Close to IC
R2
3A
R1
Vout=0.8*(1+R1/R2)
27
U
S
B
 
D
O
W
N
 
S
T
R
E
A
M
THERMAL
U
S
B
 
D
O
W
N
 
S
T
R
E
A
M
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.
USB
C2205
0.1uF
SCL2_3.3V
USB_DP2
+3.3V_USB
USB_DM2
+3.3V_USB
C2201
1uF
10V
C2211
0.1uF
C2209
1uF
10V
USB_DP1
C2215
0.1uF
OPT
D2204
5.6V
CDS3C05HDMI1
R2212
100K OPT
C2214
4.7uF
R2206
100K
C2203
0.1uF
R2208
0
OPT
R2202
1M
1%
C2207
0.1uF
R2205
100K
+3.3V_USB
R2213
100K OPT
/RST_HUB
C2204
0.1uF
SIDE_USB_DP
C2202
0.1uF
P2202
KJA-UB-4-0004
1
2
3
4
5
USB_DP2
+3.3V_USB
R2209
100K
OPT
R2210
100K
USB_DM1
/USB_OCD2
C2206
1uF
10V
/USB_OCD1
C2212
0.1uF
R2207
0
OPT
R2204
100K
D2202
5.6V
CDS3C05HDMI1
R2214
0
/USB_OCD1
USB_CTL1
USB_DM1
+3.3V_USB
+3.3V_NORMAL
R2203
100K
SDA2_3.3V
SIDE_USB_DM
L2201
BLM18PG121SN1D
D2203
5.6V
CDS3C05HDMI1
C2213
0.1uF
USB_CTL2
D2201
5.6V
CDS3C05HDMI1
R2211
100K OPT
USB_DP1
USB_DM2
USB_CTL1
R2201
12K
1/10W
1%
IC2201
USB2512A_AEZG
1
USBDN1_DM
3
USBDN2_DM
7
NC_2
9
NC_4
10
VDDA33_2
11
TEST
12
PRTPWR1
13
OCS1_N
14
VDD18
15
VDD33CR
16
PRTPWR2
17
OCS2_N
18
NC_5
19
NC_6
20
NC_7
21
NC_8
22
SDA/SMBDATA/NON_REM1
23
VDD33
24
SCL/SMBCLK/CFG_SEL0
25
HS_IND/CFG_SEL1
26
RESET_N
27
VBUS_DET
28
SUSP_IND/LOCAL_PWR/NON_REM0
29
VDDA33_3
30
USBUP_DM
31
USBUP_DP
32
XTAL2
5
VDDA33_1
8
NC_3
6
NC_1
4
USBDN2_DP
2
USBDN1_DP
33
XTAL1/CLKIN
34
VDD18PLL
35
RBIAS
36
VDD33PLL
37
VSS
X2201
24MHz
C2208 15pF C2210 15pF
C2218
100uF
16V
C2222
0.1uF
IC2202
AP2191SG-13
EAN60921001
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
+5V_USB
R2226
2.7K
R2225
0
R2220
4.7K
OPT
+3.3V_NORMAL
C2220
10uF
10V
L2202
MLB-201209-0120P-N2
120-ohm
P2201
KJA-UB-4-0004
1
2
3
4
5
R2227
0
R2223
2.7K
C2223
0.1uF
R2221
4.7K
OPT
L2203
MLB-201209-0120P-N2
120-ohm
IC2203
AP2191SG-13
EAN60921001
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
C2221
10uF
10V
+5V_USB
C2219
100uF
16V
+3.3V_NORMAL
/USB_OCD2
040:J6
USB_CTL2
USB2 OPTION
USB / DVR Ready
USB
40
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.
2009.06.18
EUROBBTV
SC_RE1
2SC3052
Q4107
EU
Q4104
ISA1530AC1
EU
E
B
C
R4127
15K
EU
SCART1_Lout_N
DTV/MNT_R_OUT
R4133
390
EU
D4101
30V
OPT
C4120
0.1uF
16V
EU
+3.3V_NORMAL
R4160
0
EU
R4130
3.9K
EU
R4149
33K
EU
R4132
390
EU
R4152
4.7K
EU
D4112
30V
EU
Q4110
2SC3052
EU
E
B
C
R4154
1K
EU
SCART1_Rout_P
SCART1_MUTE
SC_RE2
C4123
10uF
16V
EU
D4103
30V
OPT
SC1_G
Q4105
2SC3052
EU
E
B
C
D4107
5.6V
OPT
R4137
15K
EU
D4106
30V
OPT
SC1_B
R4143
5.6K
EU
SCART1_Rout_N
DTV/MNT_R_OUT
041:F3;041:G2
R4139
68K
OPT
Q4111
2SC3052
EU
E
B
C
R4159
12K
EU
D4110
30V
OPT
SC1_R_IN
002:C6
C4114
100uF
16V
EU
R4157
0
EU
+12V
R4136
47K
EU
Q4109
RT1P141C-T112
EU
1
2
3
R4148
5.6K
EU
D4109
5.6V
OPT
SC1_CVBS_IN
DTV/MNT_L_OUT
D4100
5.6V
OPT
R4156
10K
EU
SCART1_Lout_P
D4108
5.6V
OPT
R4153
2K
1/16W
EU
C4127
33pF
EU
C4130
0.1uF
EU
SC1_R
R4150
33K
EU
L4105
EU
R4147
5.6K
EU
+12V
C4128
33pF
EU
REC_8
R4144
5.6K
EU
DTV/MNT_L_OUT
041:F4;041:G2
Q4108
2SC3052
EU
E
B
C
REC_8
R4135
470
EU
+12V
D4102
5.6V
OPT
R4151
2K
1/16W
EU
D4111
30V
OPT
DTV/MNT_R_OUT
D4105
5.6V
OPT
R4138
0
EU
DTV/MNT_L_OUT
C4124
10uF
16V
EU
R4128
0
EU
C4117
47uF
16V
EU
SC1_L_IN
2SC3052
Q4106
EU
+12V
JK4100
PSC008-01
EU
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
SC1_ID
SC1_FB
R4155
1K
EU
D4104
30V
OPT
C4107
4700pF
50V
EU
C4108
4700pF
50V
EU
L4100
BLM18PG121SN1D
EU
L4101
BLM18PG121SN1D
EU
C4100
1000pF
50V
EU
C4101
1000pF
50V
EU
C4113
47pF
50V
EU
IC4100
LM324D
3
3
2
2
4
4
1
1
6
6
5
5
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
DTV/MNT_V_OUT
SCART1_DET
JK4101
PPJ-230-01
CN
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
R6166
0
CN
C4125
6800pF
50V
EU
C4126
6800pF
50V
EU
R4126
10K
R4129
1K
0
R4123
EU
R4112
75
EU
R4104
75
1%
R4102
75
1%
R4101
75
1%
R4100
470K
R4103
470K
R4107
0
1/16W
5%
EU
R4105
0
1/16W
5%
EU
R4108
0
R4122
22
EU
R4111
75
1%
EU
C4115
220pF
50V
OPT
C4116
0.1uF
16V
C4119
0.1uF
16V
EU
C4118
0.1uF
16V
EU
R4131
0
OPT
R4145
1K
EU
R4146
1K
EU
ATV_OUT
IC4101
NLASB3157DFT2G
EU
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
DTV_ATV_SELECT
R4163
10K
EU
+5V_NORMAL
R4134
180
EU
12
R4164
EU
R4115
62
EU
C4134
0.1uF
16V
EU
C4105
1uF
25V
R4116
0
C4112
100pF
50V
C4111
100pF
50V
R4113
0
C4104
1uF
25V
R4168
0
EU
C4138
1uF
10V
C4137
1uF
10V
Q4117
2SC3052
E
B
C
SIDE_HP_MUTE
R4171
OPT
R4169
OPT
C4139
1uF
10V
R4174
0
OPT
C4141
2.2uF
10V
C4144
2.2uF
10V
C4140
10uF
10V
+3.3V_NORMAL
R4170
4.7K
R4109
4.7K
L4104
BG2012B080TF
C4136
1uF
10V
R4175
1K
C4142
0.1uF
16V
R4172
OPT
100K
IC4102
TPA6132A2
EAN60724701
3
INR+
2
INL+
4
INR-
1
INL-
5
OUTR
6
G0
7
G1
8
HPVSS
9
CPN
10
PGND
11
CPP
12
HPVDD
13
EN
14
VDD
15
SGND
16
OUTL
R300
4.7K
L4102
10uH
+3.3V_NORMAL
C4135
1uF
10V
C4143
2.2uF
10V
L4103
BG2012B080TF
HP_ROUT
HP_LOUT
HP_LOUT_P
HP_LOUT_N
HP_ROUT_P
HP_ROUT_N
R4176
10K EU
R4177
10K EU
R4178
75
1%
C4121
33pF
OPT
R4173
0
1/16W
R4119
0
1/16W
C4145
0.22uF
16V
C4146
0.22uF
16V
C4122
33pF
OPT
R4140
68K
OPT
R4141
68K
OPT
R4142
68K
OPT
41
ETC SUB BOARD I/F
[SCART2 PIN 8]
Gain=1+Rf/Rg
Rg
Rf
EU_SCART [OPT]
Audio Out Amp
EU_SCART [OPT]
For Frequency Response
Selece = High ==> A = B1
Selece = Low  ==> A = B0
EARPHONE BLOCK
Close to the IC
EARPHONE AMP
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.
Bluetooth
P1895
12507WR-10L
BCM BT MODULE
1
2
3
4
5
6
7
8
9
10
11
+3.3V_NORMAL
R1896
27
BCM BT MODULE
R1897
27
BCM BT MODULE
R1898
0
BCM BT MODULE
VREG_CTRL
BT_RESET
R1899
0
BCM BT MODULE
BT_DP
BT_DM
D1898
5.6V
CDS3C05HDMI1
BCM BT MODULE
D1899
5.6V
CDS3C05HDMI1
BCM BT MODULE
R1889
10
BCM BT MODULE
Q1801
RTR030P02
BCM BT MODULE
S
D
G
Q1800
2SC3052
BCM BT MODULE
E
B
C
BT_ON/OFF
R1887
47K
BCM BT MODULER1886
47K
BCM BT MODULE
R1888
4.7K
BCM BT MODULE
L1899
500
OPT
C1108
1uF
BCM BT MODULE
C1899
22uF
10V
BCM BT MODULE
BLUETOOTH FOR BCM
43
BLUETOOTH
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