DOWNLOAD LG 55LM6700 (CHASSIS:LC22E) Service Manual ↓ Size: 4.7 MB | Pages: 49 in PDF or view online for FREE

Model
55LM6700 (CHASSIS:LC22E)
Pages
49
Size
4.7 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm6700-chassis-lc22e.pdf
Date

LG 55LM6700 (CHASSIS:LC22E) Service Manual ▷ View online

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.
FE_TS_DATA[5]
FE_TS_DATA[4]
FE_TS_DATA[2]
FE_TS_DATA[6]
FE_TS_DATA[7]
FE_TS_DATA[1]
FE_TS_DATA[0]
FE_TS_DATA[3]
C6526
0.1uF
16V
+5V_TU
C6519
10uF
10V
DVB_S&CHB
C6536
22uF
10V
C6522
0.1uF
16V
+3.3V_D_Demod
C6531
0.1uF
C6532
0.1uF
16V
LNB_TX
L6502
BLM18PG121SN1D
T2/C&CN
C6544
0.1uF
16V
L9_T2/C/S
C6512
100pF
DVB_S&CHB
/S2_RESET
CHB_DATA
L6503
BLM18PG121SN1D
CHB_SYNC
C6516
0.1uF
16V
T2/C&CHB&CN
IF_AGC
I2C_SCL4
R6509
33
L6501
BLM18PG121SN1D
DVB_S&CHB
C6506
18pF
50V
OPT
C6514
0.1uF
16V
I2C_SDA4
C6517
18pF
50V
OPT
+5V_TU
C6548
0.1uF
16V
+5V_NORMAL
I2C_SDA6
+3.3V_TU
+1.8V_TU
L6507
BLM18PG121SN1D
CHB
C6501
10uF
10V
CHB
+5V_TU
L6506
BLM18PG121SN1D
NOT_T/C&AT
C6546
10uF
10V
R6510
33
IF_P
+5V_TU
C6530
0.1uF
16V
R6504
22
DVB_S&CHB
C6523
100pF
50V
CHB
CHB_CLK
R6503
22
DVB_S&CHB
C6529
22uF
10V
C6525
0.1uF
16V
OPT
C6524
100pF
OPT
R6518
82
C6507
100pF
50V
T2/C&CHB&CN
R6527
20K
1%
NOT_T/C&AT
C6515
0.1uF
DVB_S&CHB
R6525
0
NOT_L9_T2/C/S
L6508
BLM18PG121SN1D
CHB
+3.3V_D_Demod
RF_SWITCH_CTL
C6528
10uF
6.3V
OPT
R6531
1
C6513
4700pF
50V CN
C6518
18pF
50V
OPT
R6529
10K
1%
NOT_T/C&AT
R6523
10K
TU_TS_ERR
+1.23V_TU
+5V_NORMAL
+3.3V_D_Demod
C6511
100pF
50V
+3.3V_TU
R6506
100
T/C&AT&CHB
+1.23V_TU
C6539
0.1uF
16V
R6528
11K
1%
NOT_T/C&AT
C6508
18pF
50V
OPT
+3.3V_TU
C6509
0.1uF
16V
CHB
TU_CVBS
C6520
0.1uF
16V
MTK/L9_DVB/ATSC/NTSC
+1.23V_TU
TU_TS_VAL
C6538
10uF
10V
NOT_T/C&AT
+3.3V_TU
TU_TS_VAL
CHB_VAL
/TU_RESET
L6500
BLM18PG121SN1D
FE_TS_VAL
FE_TS_DATA[0-7]
+3.3V_TU_IN
R6515
4.7K
FE_TS_CLK
0.1uF
C6540
R6519
1K
OPT
R6508
100
MTK/L9_DVB/ATSC/NTSC
IC6503
AZ1117BH-1.8TRE1
1
ADJ/GND
2
OUT
3
IN
C6542
0.1uF
NOT_T/C&AT
+3.3V_TU
C6510
1000pF
50V CN
+1.8V_TU
R6500
0
RF_SWITCH
TU_TS_ERR
TUNER_SIF
C6549
10uF
16V
NOT_T/C&AT
I2C_SCL6
C6527
0.1uF
OPT
+3.3V_TU
CHB_ERR
IC6501
AP2132MP-2.5TRG1
EAN61387601
NOT_T/C&AT
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
C6503
0.1uF
16V
RF_SWITCH
C6533
10uF
16V
NOT_T/C&AT
LNB_OUT
IF_N
FE_TS_SYNC
CHB_CVBS
R6513
10
DVB_S&CHB
R6512
2.2K
OPT
C6505
0.1uF
16V
+3.3V_D_Demod
R6511
100K
OPT
C6521
0.1uF
OPT
+3.3V_NORMAL
+1.8V_TU
C6500
0.1uF
16V
L9 ATSC
C6534
22uF
10V
LNB_OUT
LNB_TX
CHB_CVBS
CHB_ERR
CHB_SYNC
CHB_VAL
CHB_CLK
CHB_DATA
ATV_OUT
ATV_OUT
C6535
1uF
OPT
IC6500
74LVC1G08GW 
L9_T2/C/S
3
GND
2
A
4
Y
1
B
5
VCC
R6526
100
L9_T2/C/S
1/16W
5%
AR6502
0
NOT_T/C&AT&CHB
AR6500
0
NOT_T/C&AT&CHB
AR6501
0
NOT_T/C&AT&CHB
R6516
470
Q6500
MMBT3906(NXP) 
E
B
C
Q6501
MMBT3906(NXP) 
E
B
C
R6532
0
MTK/L9_DVB/ATSC/NTSC
C6550
0.1uF
16V
C6551
100pF
50V
TU6500-*1
TDSS-H151F
AT_H/NIM_V
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
TU6500
TDSS-G151D
T/C_H/NIM_V
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
TU6503
TDSQ-G051D
T/C/S2_V
1
N.C_1
2
RESET
3
SCL
4
SDA
5
+3.3V_TUNER
6
SIF
7
+1.8V_TUNER
8
CVBS
9
T/C_IF_AGC
10
T/C_DIF[P]
11
T/C_DIF[N]
12
N.C_2
13
N.C_3
14
N.C_4
15
GND_1
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
GND_2
29
GND_3
30
+1.23V_S2_DEMOD
31
S2_RESET
38
SHIELD
32
+3.3V_S2_DEMOD
33
S2_F22_OUTPUT
34
S2_SCL
35
S2_SDA
36
LNB
37
GND_4
TU6502
TDSQ-H051F
CHB_V
1
+5V[SPLITTER]
2
RESET
3
TU_SCL
4
TU_SDA
5
M_+3.3V
6
M_SIF
7
M_+1.8V
8
M_CVBS
9
M_IF_AGC
10
M_DIF[P]
11
M_DIF[N]
12
S_3.3V
13
S_1.8V
14
S_CVBS
15
GND_1
16
SD_ERROR
17
SD_SYNC
18
SD_VALID
19
SD_MCLK
20
SD_SERIAL_D0
21
N.C_1
22
N.C_2
23
N.C_3
24
N.C_4
25
N.C_5
26
N.C_6
27
N.C_7
28
GND_2
29
GND_3
30
SD_1.23V_DEMOD
31
SD_RESET
36
SHIELD
32
SD_3.3V_DEMOD
33
N.C_8
34
SD_SCL
35
SD_SDA
TU6503-*1
TDSQ-G351D
T2/C/S2
1
N.C_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
N.C_2
10
N.C_3
11
N.C_4
12
+B3[3.3V]
13
+B4[1.23V]
14
N.C_5
15
GND_1
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
GND_2
29
GND_3
30
+B5[1.23V]
31
S2_RESET
38
SHIELD
32
+B6[3.3V]
33
S2_F22_OUTPUT
34
S2_SCL
35
S2_SDA
36
LNB
37
GND_4
TU6501-*1
TDSN-B051F
BR_F/NIM_V
1
RF_S/W_CTL
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_1
10
NC_2
11
NC_3
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_4
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
TU6504
TDSH-T151F
TW_H/NIM
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
RF_S/W_CTL
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
TU6501
TDSN-G351D
T2/C_F/NIM_DEV
1
NC_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_2
10
NC_3
11
NC_4
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_5
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
C6508-*1
68pF
50V
BR_TW_CN_TUNER
C6506-*1
68pF
50V
BR_TW_CN_TUNER
R6500-*1
1K
5%
BR_TW_CN_TUNER
R6508-*1
1K
5%
BR_TW_CN_TUNER
R6532-*1
BLM18PG121SN1D
BR_TW_CN_TUNER
120-ohm
R6528-*1
12K
1/16W
1%
CN
R6521
220
R6520
220
TU6501-*3
TDSN-C051D 
CN_LG3921
1
RF_S/W_CTL
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_1
10
NC_2
11
NC_3
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_4
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
TU6501-*2
TDSN-C251D 
CN_ATBM
1
RF_S/W_CTL
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_1
10
NC_2
11
NC_3
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_4
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
65
TUNER
2011.11.21
T2 : Max 1.7A
150mA(MAX)
close to TUNER
Vout=0.6*(1+R1/R2)
2. No via on both of them
Ground Width >= 24mils
1. should be guarded by ground
ERROR & VALID PIN 
close to TUNER
RF_SWITCH_CTL USE: T2/C,T/C,ATSC,DTMB.ISDB-T
3. Signal Width >= 12mils
R2
2A
465mA(MAX)
should be guarded by groumd
T/C/S & H/NIM & T2/C TUNER(EU & CHINA)
R1
Signal to Signal Width = 12mils
else : Max 240mA
2012 perallel 
because of derating
else : Max 0.7A
CHB : Max 480mA
T/C_H/NIM
T/C/S2
T2/C_F/NIM
T2/C/S2
CHB
AT_H/NIM
CN
CHB
CN
DVB_S
DVB_S
T/C&AT&CHB
T/C&AT&CHB
DVB_S&CHB
DVB_S&CHB
DVB_S&CHB
NOT_T/C&AT
NOT_T/C&AT
NOT_T/C&AT
NOT_T/C&AT
NOT_T/C&AT
RF_SWITCH
T2/C
T2/C
T2/C&CN
T2/C&CHB&CN
T2/C&CN
T2/C&CHB&CN
T/C&AT&CHB
Close to the tuner
Close to the tuner
Close to the tuner
close to TUNER
close to Tuner
Seperate GND for CHB
T/C&AT&CHB
T2/C&CHB&CN
NOT_T/C&AT&CHB
NOT_T/C&AT&CHB
NOT_T/C&AT&CHB
NOT_T/C&AT&CHB
H/NIM&CHB
NOT_DVB_S
NOT_DVB_S
NOT_DVB_S
NOT_DVB_S
BR
L9_T2/C/S
Not_L9_T2/C/S
Not_L9_T2/C/S
Not_L9_T2/C/S
Not_L9_T2/C/S
Not_L9_T2/C/S
Not_L9_T2/C/S
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.
A_GND
LNB_OUT
DCDC_GND
DCDC_GND
A_GND
A_GND
R6901
33
LNB
A_GND
+12V
LNB_TX
L6900
33UH
SP-7850_33
LNB
R6900
33
LNB
C6907
0.22uF
LNB
A_GND
C6902
1uF
50V
LNB
+12V_LNB
DCDC_GND
C6906
68uF
35V
LNB
A_GND
I2C_SDA4
C6905
22000pF
LNB
I2C_SCL4
A_GND
R6903
4.7K
LNB
D6901
40V
LNB_SMAB34
C6900
0.22uF
25V
LNB
C6901
0.01uF
50V
LNB
D6903
40V
LNB_SMAB34
L6901
BLM18PG121SN1D
LNB
IC6900
A8290SETTR-T
LNB
1
BOOST
3
TCAP
7
TDI
9
VREG
10
SDA
11
ADD
12
SCL
13
NC_2
14
IRQ
15
NC_3
16
NC_4
17
NC_5
18
NC_6
19
BFC
20
NC_7
21
NC_8
22
BFO
23
NC_9
24
BFI
25
VIN
26
LX
27
GNDLX
28
LNB
5
TDO
8
GND
6
EXTM
4
NC_1
2
VCP
29
[EP]
C6908
27pF
OPT
C6903 0.1uF
LNB
C6909
27pF
OPT
D6902
40V
LNB_SMAB34
A_GND
+3.3V_NORMAL
DCDC_GND
A_GND
+12V_LNB
A_GND
C6911
0.1uF
50V
LNB
C6904
0.1uF
50V
LNB
C6912
68uF
35V
LNB
D6900
30V
MBR230LSFT1G
LNB
R6906
2.2K
1W
LNB
D6904
LNB
C6910
10uF
25V
LNB
R6904
0
R6905
0
C6916
18pF
LNB
C6915
18pF
OPT
C6913
33pF
OPT
C6914
33pF
LNB
D6901-*1
40V
LNB_SX34
D6902-*1
40V
LNB_SX34
D6903-*1
40V
LNB_SX34
C6917
0.1uF
50V
LNB
C6918
0.1uF
50V
LNB
(Option:LNB)
DVB-S2 LNB Part Allegro
DCDC_GND and A_GND are connected in pin#27
3A
Max 1.3A
PCB_GND and A_GND are connected
Input trace widths should be sized to conduct at least 3A
2A
DCDC_GND and A_GND are connected
2.4A
close to Boost pin(#1)
Ouput trace widths should be sized to conduct at least 2A
close to VIN pin(#25)
69
LNB
2011.11.21
Close to Tuner
Surge protectioin
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.
EXT_AMP_MUTE
AUDIO_L_OUT_COMMERCIAL
C7005
0.1uF
50V
+24V
+12V
C7004
0.1uF
50V
R7000
1K
COMMERCIAL_12V_CTL
R7001
100
IC7000
MP5000DQ
3
ENABLE/FAULT
2
DV/DT
4
I-LIMIT
1
GND
5
NC
6
SOURCE_1
7
SOURCE_2
8
SOURCE_3
9
SOURCE_4
10
SOURCE_5
11
VCC
P7000
12507WR-12L
1
2
3
4
5
6
7
8
9
10
11
12
13
AUDIO_R_OUT_COMMERCIAL
EXT_AMP_RESET
12V_COMMERCIAL_OUT
SPK_L_OUT_COMMERCIAL
SPK_R_OUT_COMMERCIAL
L7000
BLM18PG121SN1D
JK7000
KJA-PH-0-0177
EAG61030001
COMMER_EXT_AMP_JACK
3
DETECT
4
L
5
GND
1
R
SPK_R_OUT_COMMERCIAL
SPK_L_OUT_COMMERCIAL
Q7001
MMBT3904(NXP)
E
B
C
12V_EXT_PWR_DET
+3.5V_ST
C7002
22uF
25V
R7005
22K
R7004
100K
R7006
10K
C7003
22uF
25V
C7000
470pF
50V
C7001
1uF
25V
L7001
BLM18PG121SN1D
D7000
5.6V
D7001
5.6V
C7007
10uF
16V
C7006
10uF
16V
70
COMMERCIAL_OPTION
2011.11.21
FOR AMP RESET (MAIN SOC)
FOR 12V CONTROL (FROM MICOM)
FOR COMMERCIAL 12V OUT RS-232C 9 PIN
(OPT:COMMER_EXT_12V)
FOR COMMERCIAL AUDIO OUT
(OPT:COMMER_EXT_AMP)
AUDIO OUT JACK
(OPT:COMMER_EXT_AMP)
PATTERN SHOULD BE CONSIDERED (MAX 3W)
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.
TXC3N
TXACLKN
C7102
0.1uF
50V
OPT
TXA0N
C7100
10uF
16V
OPT
TXC2N
TXCCLKP
TXA1P
TXBCLKN
PANEL_VCC
TXA2P
TXD3N
TXC2P
TXC4N
TXCCLKN
TXD4N
R7100
33
LGD_2D/3D_CTRL
R7103
10K
BIT_SEL_LOW
TXB1P
TXB2P
TXB0N
TXA4N
TXB4P
TXBCLKP
TXC0P
TXC1N
TXD2N
TXA1N
L7100
BLM18SG121TN1D 
LVDS_51PIN
TXB1N
TXA3P
TXD0P
R7104
33
AUO_2D/3D_CTRL
TXD1P
TXA2N
TXA4P
TXD3P
TXB0P
TXB2N
TXB3N
TXA3N
TXC4P
R7102
10K
LVDS_SEL_LOW
TXDCLKN
R7101
3.3K
LVDS_SEL_HIGH
TXC1P
2D/3D_CTL
TXACLKP
2D/3D_CTL
TXB4N
TXA0P
TXB3P
TXC0N
TXD1N
+3.3V_NORMAL
TXD4P
TXDCLKP
TXD0N
TXC3P
C7101
1000pF
50V
OPT
TXD2P
P7100
FI-RE51S-HF-J-R1500 
LVDS_51PIN
1
NC
2
NC
3
NC
4
NC
5
NC
6
AUO_65_MIRROR
7
LVDS_SEL
8
NC
9
NC
10
L/DIM_ENABLE
11
GND
12
RA0N
13
RA0P
14
RA1N
15
RA1P
16
RA2N
17
RA2P
18
GND
19
RACLKN
20
RACLKP
21
GND
22
RA3N
23
RA3P
24
RA4N
25
RA4P
26
GND
27
BIT_SEL
28
RB0N
29
RB0P
30
RB1N
31
RB1P
32
RB2N
33
RB2P
34
GND
35
RBCLKN
36
RBCLKP
37
GND
38
RB3N
39
RB3P
40
RB4N
41
RB4P
42
GND
43
GND
44
GND
45
GND
46
GND
47
NC
48
VLCD
49
VLCD
50
VLCD
51
VLCD
52
GND
P7101
FI-RE41S-HF-J-R1500 
LVDS_41PIN
1
NC
2
NC
3
NC
4
NC
5
NC
6
NC
7
NC
8
NC
9
GND
10
RC0N
11
RC0P
12
RC1N
13
RC1P
14
RC2N
15
RC2P
16
GND
17
RCCLKN
18
RCCLKP
19
GND
20
RC3N
21
RC3P
22
RC4N
23
RC4P
24
GND
25
GND
26
RD0N
27
RD0P
28
RD1N
29
RD1P
30
RD2N
31
RD2P
32
GND
33
RDCLKN
34
RDCLKP
35
GND
36
RD3N
37
RD3P
38
RD4N
39
RD4P
40
GND
41
GND
42
GND
I2C_SDA1
I2C_SCL1
R7105
33
CP_BOX
R7106
33
CP_BOX
PWM_DIM1
OPC_EN
R7108
33
LGD_32/37_LVDS_OPC
R7107
33
LGD_32/37_LVDS_PWM
BIT_SEL
[51Pin LVDS OUTPUT Connector] 
[41Pin LVDS OUTPUT Connector] 
LVDS
LVDS_SEL
71
LVDS_HIGH_MID
2011.08.11
Page of 49
Display

Click on the first or last page to see other 55LM6700 (CHASSIS:LC22E) service manuals if exist.