DOWNLOAD LG 42LE5500 / 42LE5550 (CHASSIS:LJ03D) Service Manual ↓ Size: 13.1 MB | Pages: 52 in PDF or view online for FREE

Model
42LE5500 42LE5550 (CHASSIS:LJ03D)
Pages
52
Size
13.1 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42le5500-42le5550-chassis-lj03d.pdf
Date
PREV: LG 42LE5500 / 42LE550N / 42LE5510 / 42LE5800 / 42LE5810 / 42LE5900 / 42LE5910 (CHASSIS:LD03E) Service Manual

LG 42LE5500 / 42LE5550 (CHASSIS:LJ03D) Service Manual ▷ View online

THERMAL
THERMAL
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.
T-Con (L.D.)
09/09/10
95
COMMON
GVST_I/GSP
PANEL_VCC
(+12V)
L9100
6.8uH
DEV
MINI_LVDS
R9174
OPT
R9108
100
GIP
SCL3_3.3V
C9122
0.47uF
25V
R9100
33
R9143
3.3K
GIP
C9138
0.1uF
50V
DPM_A
GCLK2
C9102
OPT
OPT
R9102
1K
1%
TCON_42_FHD
GCLK1_I
GMA15
IC9103
MAX17113ETL+
DEV
MINI_LVDS
EAN60924401
3
GND2
2
DRVP
4
SRC
1
THR
6
DRN
5
GON
7
MODE
8
DLP
9
FBP
10
GPGND
11
CTL
12
DRVN
13
AGND
14
FBN
15
REF
16
DEL1
17
FB2
18
BST
19
LX2
20
LX2
21
OUT
22
IN2
23
IN2
24
VIN
25
FSEL
26
EN1
27
DEL2
28
VL
29
EN2
30
PGND
31
PGND
32
LX1
33
LX1
34
SW1
35
SW0
36
FB1
37
COMP
38
PGOOD
39
CRST
40
AGND
GVDD_EVEN/GOE
GVDD_ODD/GSC
D9102
KDS226
A
AC
C
C9142
1uF
50V
VGL_FB
R9152
0
NON_GIP
R9148
510 NON_GIP
R9116
10
GIP
VCC_LCM
(+3.3V)
VGH
(+25V)
GCLK5_I
R9155-*1
0
GIP
R9131
11K
1%
TCON_42_FHD
VCOM
DISCHG
VCOM_FB0
R9167
0
NON_GIP
R9127
150K
1%
TCON_42_FHD
SOE
C9103
0.1uF
50V
C9118
10uF
16V
R9145
150K
1%
TCON_42_FHD
GCLK1_I
R9177
0
GIP
C9131
15pF
50V
NON_GIP
R9196
24K
GMA4
R9114
OPT
OPT
C9145-*1
560pF
50V
NON_GIP
R9156
150K
1%
TCON_42_FHD
R9179
0
GCLK4_I
D9100
100V
MMSD4148T1G
OPT
VDD_LCM
(+16V)
R9170
10
VGL
(-5V)
R9106
0
VGH_FB
C9136
27pF 50V
NON_GIP
R9111
10
GIP
GVDD_ODD_I/GSC
R9180
360
C9145
1000pF
50V
GIP
R9141
0
VGI_P
VCC_LCM
(+3.3V)
EN2
R9118
10K
OPT
VST
EN2
R9169
2.2
C9105
0.1uF
50V
C9117
1uF
50V
R9147
2.7K
NON_GIP
R9166
15K
1%
TCON_42_FHD
POL_A
R9121
0
GIP
C9156
15pF
50V
OPT
VGH_FB
C9135
OPT
R9101
1K
OPT
C9149
22uF
10V
R9153
0
NON_GIP
D9103
100V
MMSD4148T1G
IC9101
MAX17119DS
GIP
EAN60987201
DEV
1
A9
3
A7
7
A3
9
A1
10
GON1
11
GOFF
12
GON2
13
Y1
14
Y2
15
Y3
16
Y4
17
Y5
18
Y6
19
Y7
20
Y8
21
Y9
22
YDCHG
23
GND
24
RE
25
FLK3
26
FLK2
27
FLK1
28
VSENSE
5
A5
8
A2
6
A4
4
A6
2
A8
29
EP[VGOFF]
VCOML
VGH
(+25V)
POL
SDA3_3.3V
R9158
0
GIP
GCLK2_I
C9129
15pF
50V
NON_GIP
C9157
15pF
50V
OPT
C9152
1uF
10V
VGL_FB
DPM
CLK5
R9142
0
OPT
GCLK5_I
R9175
0
GIP
C9154
OPT
C9116
1uF
50V
C9148
22uF
25V
REF
GMA3
PANEL_VCC
GCLK2_I
VDD_ODD
VCOMLFB
R9119
20K
R9112
10
1/8W
VGH
(+25V)
C9112
4.7uF
50V
MINI_LVDS
R9194
360
OPT
VGI_N
R9162
0
GVDD_EVEN_I/GOE
R9110
22
GIP
R9164
0
R9154
0 GIP
VGL
(-5V)
P9100
12505WS-03A00
1
2
3
4
D9105
40V
MBRA340T3G
VCOMR
R9160
0
NON_GIP
R9149
0
VGL
(-5V)
D9106
MBRA340T3G
C9159
15pF
50V
OPT
C9123
1uF
10V
R9161
0
GIP
C9101
0.22uF
50V
GIP
R9150
0 GIP
PANEL_VCC
(+12V)
R9155
510
NON_GIP
L9101
22UH
2.8A
C9120
15pF
50V
C9132
15pF
50V
OPT
C9153
100uF
25V
R9173
1K
R9130
220K
1%
TCON_42_FHD
GMA6
C9111
1uF
50V
R9168-*1
33K
NON_GIP
R9159
0
GIP
R9120
7.5K
R9117
47K
OPT
VDD_LCM
(+16V)
CLK1
GMA7
GCLK6_I
FLK
C9115
10uF
16V
C9107
1uF
50V
GIP
CLK6
GCLK3_I
R9133
10
GIP
C9158
15pF
50V
OPT
R9157
75K
1%
TCON_42_FHD
VCOM_FB0
R9105
22
GIP
R9125
18K
R9133-*1
200
NON_GIP
R9134
10
GIP
C9160
15pF
50V
CLK4
L9103
BLM18PG121SN1D
TH9000
47k-ohm
NCP18WB473F10RB
GIP
L9104
BLM18PG121SN1D
OPT
SDA3_3.3V
GCLK1/GSP_R
D9108
100V
MMSD4148T1G
D9101
KDS226
A
AC
C
VGH_M
(+25V)
GMA16
GCLK3_I
R9144
27K
1%
TCON_42_FHD
C9147
1uF
50V
GCLK6_I
DISCHG
CLK2
C9110
1uF
25V
R9148-*1
0
GIP
IC9100
MAX9668ETP+
MINI_LVDS
DEV
1
SDA
3
DVDD
7
AVDD_AMP
9
NC_1
10
GMA1
11
GMA2
12
GMA3
13
GMA4
14
GMA5
15
GMA6
16
AVDD_2
17
NC_2
18
GMA7
19
GMA8
20
SCL
5
VCOM
8
AVDD_1
6
VCOM_FB
4
AGND_AMP
2
A0
21
EP[GND]
R9107
0
C9108
10uF
25V
MINI_LVDS
GVDD_EVEN_I/GOE
C9155
22uF
25V
C9146
150pF
50V
R9182
9.1K
1/8W
R9146
33K
NON_GIP
C9104
1uF
50V
GIP
R9178
0
GIP
R9104
1K
1%
TCON_42_FHD
C9150
1uF
50V
R9103
33
R9181
5.1K
R9124
18K
R9132
0
VGL
(-5V)
C9127
1uF
50V
VCC_LCM
(+3.3V)
C9139
1uF 50V
FLK
C9109
10uF
25V
MINI_LVDS
R9147-*1
0
GIP
R9176
0
GIP
VCC_LCM
(+3.3V)
GCLK4_I
C9137
0.1uF
50V
GIP
R9137
0
VGL_I
R9109
3K
GIP
D9104
MBRA340T3G
GCLK4/OPT_P
GMA13
VCOMRFB
PANEL_VCC
(+12V)
GCLK6
IC9102
TPS62110RSAR
MINI_LVDS
EAN60985901
DEV
1
PGND_1
3
VIN_2
7
LBI
9
AGND
10
FB
11
GND_1
12
GND_2
13
PG
14
SW_1
15
SW_2
16
PGND_2
5
SYNC
8
VINA
6
LBO
4
EN
2
VIN_1
REF
VDD_LCM
(+16V)
VGH
(+25V)
C9100
0.1uF
50V
C9144
0.1uF
50V
GMA12
GVDD_ODD_I/GSC
R9136
10
NON_GIP
C9151
0.1uF
50V
C9128-*1
470pF
50V
NON_GIP
R9163
0
C9119
15pF
50V
NON_GIP
EN2
FLK_A
SCL3_3.3V
FLK
CLK3
C9126 0.047uF
NON_GIP
R9168
10K
GIP
R9140
0
GIP
R9122
10
C9125
68pF
NON_GIP
VDD_LCM
(+16V)
HVDD
R9171
0
C9134
OPT
C9162
22uF
25V
C9113
22pF
50V
EN2
DPM
R9128
200K
1%
TCON_42_FHD
C9143
0.1uF
50V
GVST_I/GSP
C9121
15pF
50V
C9124
1uF
50V
GVST/GSP
R9115
10
GIP
R9139
0
GIP
R9172
1K
L9102
22UH
2.8A
C9130
15pF
50V
NON_GIP
VDD_EVEN
R9134-*1
200
NON_GIP
R9151
0
OPT
R9113
10K
GIP
C9106
1uF
50V
MINI_LVDS
R9123
1M
NON_GIP
VDD_LCM
(+16V)
C9114
22uF
16V
GCLK3
VCC_LCM
(+3.3V)
VGH
(+25V)
SOE_A
R9126
510K
1%
TCON_42_FHD
VCOM
R9165
18K
1%
OPT
GCLK5
VDD_LCM
(+16V)
C9128
1000pF
50V
GIP
R9135
3.6K
R9138
0
R9129
56K
1%
TCON_42_FHD
EN2
C9140
0.1uF
50V
C9133
15pF
50V
OPT
C9137-*1
1uF
10V
NON_GIP
C9164
0.47uF
25V
OPT
R9195
2.2K
MINI_LVDS
R9193
2.2K
MINI_LVDS
C9141
47uF
25V
Value should
be checked
1uF/50V(2012)
To reduce
Audible noise
Vo = 1.153*(1+R1/R2)
4.7uF/50V(3216)
10uF/25V(3216)
[HVDD Block]
* Voltage Target 
VDD_LCM =  16.25V
VGH     =  28.50V
VGL     =  -5.35V
[P-GAMMA Block]
CHECK Value!!
R2
Slave Address : 0xE8h
 (AO Pin - GND)
[LEVEL Shift Block]
6.8uH/1.8A
(6x6x2mm)
R1
To reduce
Audible noise
For P-Gamma Data Download
To reduce
Audible noise
[POWER Block]
LG5111 SWAP
Signal Name Change
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.
T-Con Power Option
09/12/15
98
Common
R9127-*4
68K
1%
TCON_55_FHD
R9127-*3
150K
1%
TCON_47_FHD
R9102-*1
1K
1%
TCON_32_FHD
R9102-*2
1.5K
5%
TCON_37_FHD
R9144-*3
51K
1%
TCON_47_FHD
R9128-*3
220K
1%
TCON_47_FHD
R9131-*2
12K
1%
TCON_37_FHD
R9129-*3
51K
1%
TCON_47_FHD
R9131-*1
11K
1%
TCON_32_FHD
R9127-*1
150K
1%
TCON_32_FHD
R9126-*4
180K
1%
TCON_55_FHD
R9101-*3
1K
1%
TCON_47_FHD
R9128-*1
200K
1%
TCON_32_FHD
R9145-*3
270K
1%
TCON_47_FHD
R9102-*3
1K
1%
TCON_47_FHD
R9130-*1
220K
1%
TCON_32_FHD
R9145-*4
150K
1%
TCON_55_FHD
R9104-*2
1K
1%
TCON_37_FHD
R9104-*1
1K
1%
TCON_32_FHD
R9157-*3
75K
1%
TCON_47_FHD
R9101-*1
1K
1%
TCON_32_FHD
R9156-*1
150K
1%
TCON_32_FHD
R9165-*2
470K
1%
TCON_37_FHD
R9101-*2
1K
1%
TCON_37_FHD
R9166-*3
20K
1%
TCON_47_FHD
R9156-*2
910K
1%
TCON_37_FHD
R9144-*4
27K
1%
TCON_55_FHD
R9157-*1
27K
1%
TCON_32_FHD
R9130-*4
68K
1%
TCON_55_FHD
R9126-*1
510K
1%
TCON_32_FHD
R9166-*1
24K
1%
TCON_32_FHD
R9126-*3
510K
1%
TCON_47_FHD
R9130-*2
220K
1%
TCON_37_FHD
R9166-*4
15K
1%
TCON_55_FHD
R9130-*3
220K
1%
TCON_47_FHD
R9156-*4
150K
1%
TCON_55_FHD
R9131-*4
27K
1%
TCON_55_FHD
R9129-*1
22K
1%
TCON_32_FHD
R9129-*2
47K
1%
TCON_37_FHD
R9145-*1
270K
1%
TCON_32_FHD
R9157-*4
75K
1%
TCON_55_FHD
R9166-*2
56K
1%
TCON_37_FHD
R9128-*4
56K
1%
TCON_55_FHD
R9156-*3
180K
1%
TCON_47_FHD
R9104-*3
1K
1%
TCON_47_FHD
R9129-*4
510K
1%
TCON_55_FHD
R9131-*3
11K
1%
TCON_47_FHD
R9157-*2
56K
1%
TCON_37_FHD
R9126-*2
470K
1%
TCON_37_FHD
R9102-*4
0
5%
TCON_55_FHD
R9144-*1
51K
1%
TCON_32_FHD
R9127-*2
91K
1%
TCON_37_FHD
R9144-*2
20K
1%
TCON_37_FHD
R9145-*2
150K
1%
TCON_37_FHD
VGL
VGL
VGH
VGL
47_FHD
VGH
VCOM FEED BACK
VGL
VDD
42_FHD
91 or 95
Sheet
HVDD
VCOM FEED BACK
VDD
R9104 OPEN
37_FHD
32_FHD
VCOM FEED BACK
HVDD
VDD
VDD
VGL
R9101 OPEN
HVDD
VGH
55_FHD
R9165 OPEN
VCOM FEED BACK
VDD
VGH
VCOM FEED BACK
HVDD
R9128 OPEN
VGH
R9165 OPEN
HVDD
R9165 OPEN
91 or 95
Sheet
91 or 95
Sheet
91 or 95
Sheet
91 or 95
Sheet
MICOM
UPD78F0513AGA
-GAM-AX
IC8101
SUB_SCL/SDA
MAX3232CDR
IC8200
RX
BCM_TXD1
MICOM  EEPROM
M24C16-WMN6T
16Kbit
IC8100
BCM3556
IC100
RS232
(P8201)
NEC_TXD
TX
BCM_RXD1
NEC_RXD
IR_PASS
NEC_EEPROM
_SCL/SDA
CEC_REMOTE
WIRELESS
JK8700
WIRELESS_SCL/SDA=>AMP_SCL/SDA
MC14053BDR2G
IC8700
Wireless_TX
Wireless_RX
Wireless_DL_RX
Wireless_DL_TX
BCM_TX
BCM_RX
USB
EPHY_RDP/RDN
USB_DM1/2
USB_DP1/2
P2201/2
USB2512
IC2201
ETHERNET
(JK8200)
EPHY_TDP/RDP
BLUETOOTH
P1895
BT_DM, BT_DP
MOTION REMOCON
P1700
M_REMOTE_RX
BT_RESET
VREG_CTRL
M_REMOTE_TX
TUNER
HNIM/FNIM
(TU2701)
TU_CVBS/TU_SIF
SCL1/SDA1
CONTROL
IR & KEY
P8200
NEC_EEPROM
_SCL/SDA
LED_R/BUZZ
KEY1
KEY2
IR
LED_B/LG LOGO
SIDE_USB
_DP/DM
HDMI 1
TDA19997
4x1 
HDMI Switch
IC8300
HDMI 2
HDMI 3
HDMI 4
HDMI0_ SCL/SDA, TMDS[0-2,CLK]
HDMI1_ SCL/SDA, TMDS[0-2,CLK]
HDMI2_ SCL/SDA, TMDS[0-2,CLK]
HDMI3_ SCL/SDA, TMDS[0-2,CLK]
FE_TS_SERIAL/SYNC/VAL_ERR/DATA_CLK
ATV/DTV
TUNER
(HNIM)
TU2600
Cable
IF_N / P
AV1
COMP1
COMP2
CVBS,L,R
YPbPr,L,R
YPbPr,L,R
Brazil(ISDB)
AUS/TW(DVB-T)
DVB-T
ISDB DEMOD
MN884433
IC2800
IF_AGC
Brazil OPT
BCM High Block Diagram (Input/Interface)
RGB-PC
(P8400)
M24C02(EEPROM)
IC8401
PC AUDIO IN
(JK8401)
DSUB_R/G/B, H/V_Sync
RGB_DDC_SCL/SDA
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