Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essentia l t hat these special safety parts sho uld be replaced with the same comp onents as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
MID_MAIN_3
2011.12.09
10
Page 26
PLACE AT JACK SIDE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
R610
C601
10pF
51K
1/16W
1%
EU
L611
120-ohm
EU
OPT
C607
100pF
EU
SC_ID
READY FOR FILTER (EMI)
SC_CVBS_IN
R613
10K
SC_ID_SOC
EU
R604
75
1%
SC_CVBS_IN_IF
EU
SC_L_IN
SC_R_IN
SC_FB
SC_R
SC_G
SC_B
Close to JACK
R601
470K
OPT
R602
470K
OPT
R605
75
1%
R606
75
1%
R608
75
1%
EU
EU
R607
75
1%
R609
22
EU
EU
SC_FB_SOC
PLACE AT MAIN SOC SIDE
C604
10pF
EU
C605
10pF
EU
0
R637
1/16W
EU
C606
10pF
EU
EU
Close to Main Chip
C602
330pF
50V
OPT
C603
330pF
50V
OPT
C608
10uF
16V
C609
10uF
16V
EU
EU
1608 size For EMI
R625
30K
EU
1608 size For EMI
R626
30K
EU
C610
100pF
50V
EU
C611
100pF
50V
EU
SC_CVBS_IN_IF
SCART_Rout_SOC
SCART_Lout_SOC
R614
0
1/16W
5%
EU
R624
0
1/16W
5%
EU
R623100
R622100
R620100
R621100
R617100
SC_L_IN_SOC
SC_R_IN_SOC
EU
EU
EU
EU
EU
C615 0.01uF
EU
C614 0.01uF
C612 0.01uF
C613 0.01uF
C616 0.047uF
R618
15K EU
R619
15K
EU
Close to SOC
SC_R_SOC
C619
330pF
50V
C618
330pF
50V
EU
EU
SC_G_SOC
SC_COM_SOC
SC_B_SOC
SC_CVBS_IN_SOC
PLACE AT IC6000
+3.3V_NORMAL
EU
R630
C620
1uF
EU
C621
1uF
EU
+3.3V_NORMAL
EU
R628
68K
EU
R629
100K
R635
10K
EU
R636
10K
EU
68K
R631
100K
EU
SCART_Rout
SCART_Lout
SCART_AMP_R_FB
SCART_AMP_L_FB
EU
EU
EU
EU
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
DTV/MNT_V_OUT_SOC
R616
EU
75
1%
TU_CVBS
R615
OPT
READY FOR FILTER (EMI)
EU
R600
0
75
1%
TP600
C600
220pF
OPT
C617
100pF
EU
DTV/MNT_V_OUT
MID_MAIN_SCART
2011.12.30
11
Page 27
A_RVREF1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
2011.12.09
DDR ONE SIDE12
Page 28
CI TS INPUT
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
MID_MAIN_CI
2011.11.21
13
Page 29
SPDIF
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SPDIF OUT
SPDIF_OUT
R3610
+3.3V_NORMAL
R3611
2.7K
OPT
33
C3602
0.1uF
16V
VINPUT
GND
Fiber Optic
1
VCC
2
JK3602
JST1223-001
3
4
FIX_POLE
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
JACK HIGH / MID
2011.11.21
36
Page 30
HP_DET
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
HP_ROUT
HP_LOUT
R3701
1K
R3700
+3.3V_NORMAL
10K
E_SPRING
R_SPRING
T_SPRING
B_TERMINAL2
T_TERMINAL2
PEJ034-01
3
4
5
7B
6B
JK3700
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
JACK_COMMON
2011.11.21
37
Page 31
KEY1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
KEY2
Place Near Micom
R4117
10K
5%
R4113
100
R4114
100
+3.5V_ST
R4118
LOGO_LIGHT
L4111
MAX 0.4A
10K
5%
P4101
P4102
12507WR-08L
+3.5V_ST
+3.5V_ST
R4132
LOGO_LIGHT
10K
C4100
0.1uF
10K
OPT
R4133
LOGO_LIGHT
C4120
0.1uF
16V
C4102
0.1uF
AMOTECH CO., LTD.
L4100
BLM18PG121SN1D
AMOTECH CO., LTD.
D4100
5.6V
OPT
C4104
1000pF
50V
LOGO_LIGHT
IR
R4134
1K
D4101
5.6V
OPT
LOGO_LIGHT
R4107
LED_R
B
Q4100
MMBT3904(NXP)
+3.5V_ST
10K
R412510K
C
E
C4107
100pF
50V
LED_R
R4131
22
LOGO_LIGHT
D4104
5.6V
EYE_SCL
EYE_Q_10P
EYE_SDA
EYE_Q_10P
OPT
AMOTECH CO., LTD.
R4137
100
D4105
ADMC 5M 02 200L
OPT
R4138
100
D4106
ADMC 5M 02 200L
OPT
KEY1
KEY2
+3.5V_ST
LOGO/LED_R
12507WR-10L
GND
GND
IR
GND
NON_EYE_Q_8P
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
EYE_Q_10P
11
P4100
12507WR-06L
WIFI
7
1
2
3
4
5
6
C4113
10uF
10V
WIFI
ZD4100
ADLC 5S 02 015
WIFI_ESD
22
R4130
OPT
22
R4136
WIFI
C4112
10uF
10V
WIFI
BLM18PG121SN1D
C4111
0.1uF
16V
WIFI
For EMI
WIFI_DM
WIFI_DP
ZD4101
ADLC 5S 02 015
WIFI_ESD
WOL/ETH_POWER_ON
WOL/WIFI_POWER_ON
WIFI
+3.5V_ST_WAKE
TP4100
TP4101
TP4102
TP4103
TP4104
RTS
M_REMOTE_RX
M_REMOTE_TX
M_RFModule_RESET
CTS
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
IR / KEY
2011.11.21
41
Page 32
Full Scart(18 Pin Gender)
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
EU
PSC008-01
JK4600
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AV_DET
COM_GND
SYNC_IN
SYNC_OUT
SYNC_GND2
SYNC_GND1
RGB_IO
R_OUT
RGB_GND
R_GND
D2B_OUT
G_OUT
D2B_IN
G_GND
ID
B_OUT
AUDIO_L_IN
B_GND
AUDIO_GND
AUDIO_L_OUT
AUDIO_R_IN
AUDIO_R_OUT
VA4606
5.6V
OPT
VA4607
5.6V
OPT
VA4608
VA4609
5.6V
OPT
5.5V
EU
VA4610
5.5V
+3.3V_NORMAL
EU
R4601
CLOSE TO JUNCTION
10K
R4602
1K
EU
L4600
L4601
C4602
4700pF
EU
C4603
4700pF
C4604
0.1uF
EU
VA4601
5.6V
OPT
SC_CVBS_IN
EU
VA4602
5.6V
EU
VA4603
5.5V
OPT
VA4604
5.5V
OPT
VA4605
5.5V
OPT
VA4600
20V
EU
VA4611
5.6V
OPT
BLM18PG121SN1D
EU
EU
C4600
1000pF
50V
BLM18PG121SN1D
EU
EU
C4601
1000pF
50V
SC_FB
SC_R
SC_G
SC_B
SC_ID
SC_L_IN
SC_R_IN
DTV/MNT_L_OUT
DTV/MNT_R_OUT
SC_DET
1/16W
R8904
EU
0
DTV/MNT_V_OUT
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SCART GENDER
2011.10.26
46
Page 33
AMP_MUTE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
AMP_NEO
2011.11.21
54
Page 34
AUD_OUT >> EU/CHINA_HOTEL_OPT
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
DTV/MNT_L_OUT
C6000
1uF
25V
EU
OPT
C6002
6800pF
EU
R60002.2K
OPT
R6002
470K
SCART_AMP_L_FB
SCART_Lout
33pF
+12V
EU
IC6000
AZ4580MTR-E1
EU
VCC
8
OUT2
7
IN2-
6
IN2+
5
OUT1
1
EU
R600433K
C6003
EU
IN1-
IN1+
2
3
VEE
4
L6000
EU
C6004
0.1uF
50V
SIGN600002
R600833K
C6005
EU
EU
33pF
SCART_AMP_R_FB
SCART_Rout
OPT
R6010
470K
R6011
OPT
C6007
6800pF
2.2K
EU
C6008
1uF
25V
EU
DTV/MNT_R_OUT
[SCART AUDIO MUTE]
DTV/MNT_L_OUT
Q6000
MMBT3904(NXP)
DTV/MNT_R_OUT
Q6001
MMBT3904(NXP)
C
E
C
E
EU
R6013
1K
B
EU
EU
R6014
1K
B
EU
EU_SCART_MUTE_ISAHAYA
Q6002
RT1P141C-T112
E
C
B
SCART_MUTE
PDTA114ET
Q6002-*1
E
C
B
EU_SCART_MUTE_NXP
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SCART AUDIO AMP
2011.11.21
60
Page 35
EARPHONE AMP
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
HP_OUT_H13
C6104-*1
18pF
IC6100
TPA6138A2
HP_OUT_H13
C6109-*1
18pF
HP_ROUT_MAIN
HP_OUT_H13
R6103-*1
43K
1%
C6100
1uF
10V
HP_OUT
HP_ROUT_AMP
SIDE_HP_MUTE
HP_OUT
R6100
10K
HP_OUT_MTK
C6104
180pF
R6103
33K
+3.3V_NORMAL
HP_OUT_MTK
HP_OUT
R6106
43K
1%
4.7K
R6105
HP_OUT
HP_OUT
HP_OUT
C6102
1uF
10V
C6108
10pF
50V
+INR
-INR
OUTR
GND_1
MUTE
VSS
10V
+INL
14
-INL
13
12
11
10
HP_OUT
OUTL
UVP
GND_2
VDD
9
CP
8
1
HP_OUT
2
3
4
5
6
CN
7
C6103
1uF
HP_OUT
C6106
10pF
50V
HP_OUT_MTK
HP_OUT
R6104
43K
1%
+3.3V_NORMAL
HP_OUT
HP_OUT
C6109
180pF
R6102
33K
HP_OUT_MTK
L6100
120-ohm
BLM18PG121SN1D
HP_OUT
C6105
1uF
10V
C6107
0.1uF
16V
HP_OUT
R6101
10K
C6101
1uF
10V
HP_OUT
HP_LOUT_AMP
HP_LOUT_MAIN
HP_OUT_H13
R6102-*1
43K
1%
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
HEADPHONE AMP
2011.09.29
61
Page 36
CI POWER ENABLE CONTROL
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
+5V_NORMAL
PCM_5V_CTL
R6218
10K
CI
CI
R6217
100
IN
EN
IC6200
AP2151WG-7
5
4
+5V_CI_ON
OUT
1
CI
GND
2
FLG
3
C6210
1uF
25V
CI
R6219
10K
CI
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
CI SLOT
2011.10.31
62
Page 37
B-CAS (SMART CARD) INTERFACE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SMARTCARD_PWR_SEL/SD_EMMC_DATA[1]
JAPAN
R6300 22
+3.3V_NORMAL
2.7K
R6301
R6303
JAPAN
OPT
R6302
R6304
OPT
2.7K
JAPAN
R6305
R6306
CLKDIV1 CLKDIV2 : F_CRD_CLK
2.7K
---------------------------- 1 0 CLKIN
JAPAN
+5V_NORMAL
OPT
BLM18PG121SN1D
JAPAN
C6300
0.1uF
16V
JAPAN
L6300
SIGN630028
JAPAN
C6301
10uF
10V
C6302
0.1uF
INT CMDVCC : STATUS
+3.3V_NORMAL
IC6300
TDA8024TT
CLKDIV1
1
CLKDIV2
2
5V/3V
3
PGND
4
S2
5
VDDP
PRES
PRES
AUX2
AUX1
CGND
6
S1
7
VUP
I/O
JAPAN
8
9
10
11
12
13
14
JAPAN
C6303
0.1uF
16V
JAPAN
16V
AUX2UC
28
AUX1UC
27
I/OUC
26
XTAL2
25
XTAL1
24
OFF
23
GND
22
VDD
21
RSTIN
20
CMDVCC
19
PORADJ
18
VCC
17
RST
16
CLK
15
C6304
0.1uF
JAPAN
16V
JAPAN
R6307 22
JAPAN
R6308 22
JAPAN
R6309 22
JAPAN
R6310 22
JAPAN
R6311 22
Place CLK C3 far from C2,C7,C4 and C8
75 ohm in I/O is for short circuit Protection
OPT
JAPAN
R6317
1.2K
L6301
JAPAN
BLM18PG121SN1D
JAPAN
C6305
0.1uF
16V
JAPAN
JAPAN
R6315
R6318
1.2K
JAPAN
C6306
0.1uF
16V
+3.3V_NORMAL
10K
R6312
1.2K
JAPAN
R6313
75
OPT
R6319
1.2K
JAPAN
R6316
1.2K
+3.3V_NORMAL
JAPAN
C6307
0.33uF
16V
JAPAN
R6314
1K
ZD6300
5V
JAPAN
SMARTCARD_DATA/SD_EMMC_CLK
SMARTCARD_CLK/SD_EMMC_DATA[0]
SMARTCARD_DET/SD_EMMC_DATA[3]
SMARTCARD_RST/SD_EMMC_DATA[2]
B-CAS SLOT
P6300
10057542-1311FLF(B CAS Slot)
VCC
C1
RST
C2
CLK
C3
RESERVED_1
C4
GND
C5
JAPAN
VPP
C6
I/O
C7
RESERVED
C8
SW1
S1
SW2
S2
ZD6301
5V
JAPAN
-------------------------------- HIGH HIGH CARD PRESENT
LOW HIGH CARD not PRESENT
SMARTCARD_VCC/SD_EMMC_CMD
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
CI SLOT
2011.04.17
62
Page 38
TU_GND_B
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C6601
1000pF
630V
DVB-T GND
+3.3V_NORMAL
IC6600
TJ1118S-2.5
IN
3
TU_J_JP
1
GND
+2.5V_DEMOD
+2.5V_NORMAL
TU_J_JP
L6602
BLM18PG121SN1D
C6608
0.1uF
TU_J_JP
0.1uF
16V
C6603
TU_J_JP
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
150mA(MAX)
OUT
2
C6604
22uF
10V
85C
TU_J_JP
+2.5V_NORMAL
C6605
0.1uF
16V
TU_J_JP
DEV_TU_DVB_T/C
TU6601
TDJH-G101D
B1[+3.3V]
1
NC_1
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_2
8
NC_3
9
A1
A1
47
SHIELD
B1
B1
TU_GND_B
A1
DEV_TU_DVB_T2/C/S2
A1
TU6602
TDJM-G101D
B1[+3.3V]
1
NC_1
2
AIF_AGC
3
SCL_RF
4
SDA_RF
5
AIF[P]
6
AIF[N]
7
NC_2
8
NC_3
9
NC_4
10
B2[+3.3V]
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VALID
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B3[+3.3V]
26
SCL_DEMOD
27
B4[+1.1V]
28
F22_OUTPUT
29
SDA_DEMOD
30
LNB
31
GND
32
B1
B1
47
47
TU_GND_B
TU6602-*1
TDJM-C301D
DEV_TU_China
B1[+3.3V]
1
RF_SW_CTL
2
NC_1
3
SCL_RF
4
SDA_RF
5
NC_2
6
NC_3
7
SIF
8
CVBS
9
NC_4
10
NC_5
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.1V]
28
NC_6
29
SDA_DEMOD
30
A1
B1B1A1
47
SHIELD
A1
A1
DEV_TU_J_JP
47
SHIELD
TU6603
TDJW-J201F
B1[+3.3V]
1
NC_1
2
NC_2
3
SCL_RF
4
SDA_RF
5
NC_3
6
NC_4
7
NC_5
8
NC_6
9
NC_7
10
B2[+3.3V]
11
NC_8
12
GND_1
13
M_RESET_DEMOD
25
B3[+3.3V]
26
SCL_DEMOD
27
B4[+1.2V]
28
NC_9
29
SDA_DEMOD
30
LNB
31
GND_2
32
NC_10
33
M_ERROR
34
GND_3
35
M_SYNC
36
M_MCLK
37
B5[+2.5V]
38
M_VALID
39
M_DATA
40
S_ERROR
41
S_SYNC
42
S_MCLK
43
S_VALID
44
S_RESET_DEMOD
45
S_DATA
46
B1
B1
TU_GND_B
+3.3V_LNA_TU
RF_SWITCH_CTL_TU
IF_AGC_TU
I2C_SCL6_TU
I2C_SDA6_TU
IF_P
IF_N
TU_SIF_TU
TU_CVBS_TU
+3.3V_TU
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0]
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[2]
FE_DEMOD1_TS_DATA[3]
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
FE_DEMOD1_TS_DATA[6]
FE_DEMOD1_TS_DATA[7]
/TU_RESET1_TU
+3.3V_DEMOD_TU
I2C_SCL4_TU
D_Demod_Core
LNB_TX
I2C_SDA4_TU
LNB_OUT
FE_DEMOD2_TS_ERROR
FE_DEMOD2_TS_SYNC
FE_DEMOD2_TS_CLK
+2.5V_DEMOD
FE_DEMOD2_TS_VAL
FE_DEMOD2_TS_DATA
FE_DEMOD3_TS_ERROR
FE_DEMOD3_TS_SYNC
FE_DEMOD3_TS_CLK
FE_DEMOD3_TS_VAL
/TU_RESET2_TU
FE_DEMOD3_TS_DATA
FE_DEMOD3_TS_ERROR
FE_DEMOD2_TS_ERROR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
17
18
19
20
21
22
23
24
25
26
27
30
31
32
33
34
35
36
40
41
42
43
44
45
46
47
48
49
Page 39
DVB-S2 LNB Part Allegro
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LNB_OUT
(Option:LNB)
C6900
0.1uF
LNB
25V
Close to Tuner
Surge protectioin
C6901
33pF
LNB
D6900
LNB
R6900
2.2K
1W
LNB
LNB_TSC
D6901-*1
SS23L
30V
LNB_TSC
MBR230LSFT1G
LNB_Onsemi
C6902
0.22uF
LNB
25V
A_GND
2A
D6902-*1
SS23L
30V
D6901
30V
D6902
LNB_Onsemi
30V
C6903
0.01uF
50V
LNB
LNB
C6905
10uF
25V
LNB
close to Boost pin(#1)
C6904
0.1uF
50V
A_GND
C6906
10uF
25V
D6903
LNB_SMAB34
40V
D6903-*1
LNB_SX34
40V
LNB
A_GND
C6907
10uF
25V
LNB
D6904-*1
LNB_SX34
LNB_SMAB34
LNB
C6908 0.1uF
40V
D6904
40V
[EP]GND
VCP
LNB
NC_1
TDI
A8303SESTR-T
TDO
1
2
3
4
5
A_GND
NC_3
BOOST
19
20
THERMAL
21
IC6900
7
6
SCL9ADD
IRQ
LNB
NC_2
18
8
SDA
GNDLX
3.5A
15uH
SP-7850_15
16LX17
15
14
13
12
11
10
TONECTRL
L6900
VIN
GND
VREG
ISET
TCAP
+12V
LNB
3A
Max 1.3A
C6909
10uF
25V
LNB
A_GND
close to VIN pin(#15)
C6910
0.1uF
50V
LNB
C6912
LNB
0.1uF
LNB
C69110.22uF
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
LNB
R6903
39K
1/16W
1%
Caution!! need isolated GND
A_GND
R6904
0
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
LNB
R6901 33
I2C_SCL4
LNB
R6902 33
I2C_SDA4
LNB_TX
LNB
2012.03.08
69
Page 40
LOCAL DIMMING
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
[To LED DRIVER]
P7600
12507WR-08L
L/DIM_OUT_8P
1
2
3
4
5
6
7
8
9
R7601
10K
L/DIM_OUT_8P
R7603
33
L/DIM_OUT_8P
R7602
33
L/DIM_OUT_8P
L/DIM0_SCLK_PWR
L/DIM0_MOSI_PWR
I2C_SCL1
I2C_SDA1
L/DIM0_VS_PWR
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
LOCAL DIMMING
2011.12.13
76
Page 41
eMMC I/F
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
OPT
C5450
10uF
35V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Page 43
JAPAN TUNER INTERFACE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
USE Two serial TS Port for Japan : MTK
A2 Ball Name Function
FE_DEMOD1_TS_DATA[1]
FE_DEMOD3_TS_CLK
FE_DEMOD1_TS_DATA[3]
FE_DEMOD3_TS_SYNC
FE_DEMOD1_TS_DATA[4]
FE_DEMOD3_TS_DATA
FE_DEMOD1_TS_DATA[2]
FE_DEMOD3_TS_VAL
FE_DEMOD1_TS_CLK
FE_DEMOD2_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD2_TS_SYNC
FE_DEMOD1_TS_DATA[0]
FE_DEMOD2_TS_DATA
FE_DEMOD1_TS_VAL
FE_DEMOD2_TS_VAL
R8500 0
TU_J_JP
R8501 0
TU_J_JP
R8502 0
TU_J_JP
R8506 0
TU_J_JP
R8503 0
TU_J_JP
R8504 0
TU_J_JP
R8505 0
TU_J_JP
R8507 0
TU_J_JP
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[3]
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[2]
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_DATA[0]
FE_DEMOD1_TS_VAL
DEMOD_TSCLK Ext_TS_CLK
DEMOD_TSSYNC Ext_TS_Sync
DEMOD_TSDATA0 Ext_Ts_D0
DEMOD_TSVAL Ext_Ts_VAL
DEMOD_TSDATA1 EXT2_Ts_CLK
DEMOD_TSDATA3 EXT2_TS_Sync
DEMOD_TSDATA4 EXT2_TS_D0
DEMOD_TSDATA2 EXT2_TS_Val
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
2012.06.15
85
Page 44
M13 EAX64872104 BASE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
MID_MAIN_2
2013.07.16
509
Page 46
FROM LPB & PSU
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
OPT
2.5V
ZD2402
DDR MAIN 1.5V
POWER_ON/OFF2_1
10K
R2430
C2420
3A
EP[GND]
1
THERMAL
2
3
4
3A
AGND
0.1uF
16V
BOOT14PWRGD15EN16VIN_3
13
PH_3
12
PH_2
11
17
PH_1
10
IC2403
SS/TR
TPS54319TRE
9
7
5
8
COMP
RT/CLK6VSENSE
+3.5V_ST
L2405
BLM18PG121SN1D
VIN_1
VIN_2
C2448
10uF
10V
C2418
10uF
10V
C2419
0.1uF
16V
GND_1
GND_2
Vout=0.827*(1+R1/R2)=1.521V
1/16W
R2431
15K
C2455
0.1uF
16V
R2432
5%
C2450
0.01uF
50V
330K1/16W5%
NR5040T2R2N
C2421
4700pF
50V
L2411
2.2uH
C2456
10uF
10V
C2451
10uF
10V
C2454
10uF
10V
C2447
10uF
10V
R2433
56K
1/16W
1%
R2455
R1
47K 1%
R2
+1.5V_DDR
C2452
100pF
50V
C2457
0.1uF
16V
OPT
2.5V
ZD2401
BLM18PG121SN1D
Placed on SMD-TOP
C2430
10uF
16V
POWER_ON/OFF2_2
L2409
+3.3V_NORMAL
+12V
IC2405
TPS54327DDAR
EN
1
VFB
9
2
THERMAL
VREG5
C2431
10uF
16V
10K
R2414
C2436
0.1uF
C2434
0.1uF
16V
OPT
16V
3
SS
4
C2415
C2416
1uF
3300pF
10V
50V
Vout=0.765*(1+R1/R2)
30K
3.3K
10K
1%
1/16W
1%
R1
1%
R2
+3.3V_NORMAL
5V
ZD2400
ZENER_3.3V_NORMAL
MAX 3.4 A
L2410
[EP]GND
VIN
16V
8
0.1uF
C2437
VBST
7
SW
6
GND
5
2uH
NR8040T2R0N
MID_POWER
C2438
10uF
10V
C2439
10uF
10V
C2442
10uF
10V
C2444
10uF
10V
C2445
100pF
50V
OPT
R2427
R2440
R2428
2011.11.25
24
Page 47
Renesas MICOM
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
NetCast4.0
MICOM (RENESAS)
2013.02.05
530
Page 48
SIDE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
BODY_SHIELD
GND
20
FREEPORT
EAG62611204
51U019S-312HFN-E-R-B-LG
JK3301
SIDE
BODY_SHIELDGND
20
HP_DET
FREEPORT
19
5V
18
GND
17
DDC_DATA
16
DDC_CLK
15
ARC
14
CE_REMOTE
13
CK-
12
CK_GND
11
CK+
10
D0-
9
D0_GND
8
EAG62611204
D0+
7
D1-
6
D1_GND
5
D1+
4
D2-
3
D2_GND
2
D2+
1
JK3303
51U019S-312HFN-E-R-B-LG
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HP_DET
5V
GND
DDC_DATA
DDC_CLK
NC
CE_REMOTE
CK-
CK_GND
CK+
D0-
D0_GND
D0+
D1-
D1_GND
D1+
D2-
D2_GND
D2+
VA3302
VA3304
ADUC 20S 02 010L
VA3305
ADUC 20S 02 010L
CEC_REMOTE
ADUC 20S 02 010L
BLM18PG121SN1D
VA3303
ADUC 20S 02 010L
CEC_REMOTE
CK+_HDMI4_JACK
D0-_HDMI4_JACK
D0+_HDMI4_JACK
D1-_HDMI4_JACK
D1+_HDMI4_JACK
D2-_HDMI4_JACK
D2+_HDMI4_JACK
5V_HDMI_3_JACK
MMBT3904(NXP)
R3327
100K
HDMI_ARC
D3320
IP4294CZ10-TBR
VA3313
ADUC 20S 02 010L
1
2
3
4
5
D3321
IP4294CZ10-TBR
1
2
3
4
5
5VBUS
L3303
VA3300ADUC 20S 02 010L
HDMI3_DDC_ESD_10pF
R3386
180K
R3387
120K
UI : HDMI3
R3330
1K
C
Q3303
B
E
VA3306
ADUC 20S 02 010L
10
9
8
7
6
10
9
8
7
6
UI : HDMI1
SIL_HPD/CBUS
+12V
OPT
S
R3384
1K
G
OPT
Q3304
2N7002K
D
R3371
+12V
R3308 100
R3309 100
HDMI3 CTS Reduce Capacitance on DDC Line 14.02.20
VA3301ADUC 20S 02 010L
HDMI3_DDC_ESD_10pF
R3373
1K
1/16W
C3322
5%
0.1uF
16V
OPT
R3331
1K
R3328 100
R3329 100
VA3307
ADUC 20S 02 010L
CK-_HDMI3_JACK
CK+_HDMI3_JACK
D0-_HDMI3_JACK
D0+_HDMI3_JACK
D1-_HDMI3_JACK
D1+_HDMI3_JACK
D2-_HDMI3_JACK
D2+_HDMI3_JACK
820
D
R3370
1K
G
S
DDC_SDA_MHL
DDC_SCL_4_JACK
HDMI3_DDC_ESD_1pF
VA3300-*1
ADUC 5S 02 0R5L
B
Q3301
MMBT3904(NXP)
R3336
4.7K
HDMI_HPD_3_JACK
DDC_SDA_3_JACK
DDC_SCL_3_JACK
Q3314
PMBFJ177
+3.5V_ST
R3374
10K
C
E
R3376
0
HDMI3_DDC_ESD_1pF
VA3301-*1
ADUC 5S 02 0R5L
R3375
10K
E
B
C
MMBT3906(NXP)
Q3302
SIDE
MHL_DET
(CD_SENCE)
BODY_SHIELD
20
HP_DET
FREEPORT
19
5V
18
GND
17
DDC_DATA
16
DDC_CLK
15
NC
14
CE_REMOTE
13
CK-
12
CK_GND
11
CK+
10
D0-
9
D0_GND
8
EAG62611204
51U019S-312HFN-E-R-B-LG
JK3300
D0+
7
D1-
6
D1_GND
5
D1+
4
D2-
3
D2_GND
2
D2+
1
Improve EMI(Apply the Mold B/C Model)
HOT_PLUG_DETECT
VDD[+5V]
DDC/CEC_GND
SDA
SCL
RESERVED
CEC
TMDS_CLK-
TMDS_CLK_SHIELD
TMDS_CLK+
TMDS_DATA0-
TMDS_DATA0_SHIELD
TMDS_DATA0+
TMDS_DATA1-
TMDS_DATA1_SHIELD
TMDS_DATA1+
TMDS_DATA2-
TMDS_DATA2_SHIELD
TMDS_DATA2+
5V_HDMI_1_SOC
MMBT3904(NXP)
R3301
100K
CEC_REMOTE
D3319
IP4294CZ10-TBR
1
2
3
4
5
D3318
IP4294CZ10-TBR
1
2
3
4
5
BODY_SHIELD
Q3300
10
9
8
7
6
10
9
8
7
6
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FOOSUNG
DAADR019A
JK3301-*1
R3304
1K
C
E
VA3308
ADUC 20S 02 010L
CK-_HDMI1_SOC
CK+_HDMI1_SOC
D0-_HDMI1_SOC
D0+_HDMI1_SOC
D1-_HDMI1_SOC
D1+_HDMI1_SOC
D2-_HDMI1_SOC
D2+_HDMI1_SOC
HOT_PLUG_DETECT
VDD[+5V]
DDC/CEC_GND
SDA
SCL
RESERVED
CEC
TMDS_CLK-
TMDS_CLK_SHIELD
TMDS_CLK+
TMDS_DATA0-
TMDS_DATA0_SHIELD
TMDS_DATA0+
TMDS_DATA1-
TMDS_DATA1_SHIELD
TMDS_DATA1+
TMDS_DATA2-
TMDS_DATA2_SHIELD
TMDS_DATA2+
R3305
1K
B
BODY_SHIELD
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FOOSUNG
DAADR019A
JK3300-*1
VA3310
ADUC 20S 02 010L
VA3311
ADUC 20S 02 010L
UI : HDMI2
BODY_SHIELD
FOOSUNG
R3306
4.7K
HDMI_INTERNAL_EDID
R3321
4.7K
HDMI_EXT_EDID
R3302 100
R3303 100
VA3309
ADUC 20S 02 010L
#SIL_RESET
20
19
HOT_PLUG_DETECT
18
VDD[+5V]
17
DDC/CEC_GND
16
SDA
15
SCL
14
RESERVED
13
CEC
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
10
TMDS_CLK+
9
TMDS_DATA0-
8
TMDS_DATA0_SHIELD
7
TMDS_DATA0+
6
TMDS_DATA1-
5
TMDS_DATA1_SHIELD
4
TMDS_DATA1+
3
TMDS_DATA2-
2
TMDS_DATA2_SHIELD
1
TMDS_DATA2+
DAADR019A
JK3303-*1
HDMI_HPD_1_SOC
VDD3V3_HDMI
OPT
DDC_SDA_1_SOC
DDC_SCL_1_SOC
R3356
10K
C3314
0.1uF
16V
DDC_SDA_MHL
DDC_SCL_MHL
SIL_HPD/CBUS
1.2V_MHL
MHL_DET
DDC_SCL_4_JACK
MHL_DET
VA3312
ADUC 20S 02 010L
R3351
4.7K
5V_MHL
C3313
0.1uF
16VCK-_HDMI4_JACK
CEC_REMOTE
VDD3V3_HDMI
RSVDL1
VDD12_1
RSVDL2
RESET
PWR5V_DET
INT
OPT
DSDA
DSCL
CBUS/HPD
VDD5_IN
+3.5V_ST
5V_MHL
R3381
22K
HDMI_EXT_EDID
R3379
B
D3303
IP4294CZ10-TBR
VDD33_2
[EP]GND
40
1
2
3
4
5
6
7
8
9
10
11
RSVDNC
5V_MHL
R3361
47K
22K
C
Q3311
MMBT3904(NXP)
E
E0
E1
E2
VSS
D1+_HDMI4_JACK
D2-_HDMI4_JACK
D2+_HDMI4_JACK
9
10
1827364
5
RX1+
RX2-
RX2+
37
38
39
THERMAL
41
IC3304
SIL1292CNUC
12
13
14
PS_CTRL
HDMI_DET
VREG33_OUT
HDMI_DET
A2CA1
D3301
MMBD6100
Q3309
PMV48XP
HDMI_EXT_EDID
MMBT3904(NXP)
IC3300
M24C02-RMN6T
1
2
HDMI_EXT_EDID
3
4
D0+_HDMI4_JACK
D0-_HDMI4_JACK
D1-_HDMI4_JACK
9
10
D3302
IP4294CZ10-TBR
1827364
5.1
R3388
R3389
RXC+
RX0-
RX0+
RX1-
33
34
35
36
15
16
17
CSDA18CSCL
GPIO0
GPIO1/CI2CA
R3363 10K
I2C_SDA4
I2C_SCL4
5V_MHL
R3338
10K
30V
BAT54_SUZHO
D3304
D
S
G
E
Q3313
C
VCC
8
WC
7
SCL
6
SDA
5
CK-_HDMI4_JACK
CK+_HDMI4_JACK
5
VDD3V3_HDMI
5.1
VDD33_1
RXC-
31
32
30
29
28
27
26
25
24
23
22
21
19
20
1.2V_MHL
CEC_A
VDD12_2
30V
R3380
1.8K
B
HDMI_EXT_EDID
R3319
22
HDMI_EXT_EDID
R3320
22
HDMI_EXT_EDID
Field Issue
Latch Up
(+3.3V_NORMAL -> VDD3V3)
1.2V_MHL
AVDD12
TXCTXC+
TX0TX0+
TX1TX1+
TX2TX2+
HPD_IN
VDD3V3_HDMI
OPT
R3355
4.7K
OPT
R3345
4.7K
DDC_SCL_MHL
30V
D3312
D3313
BAT54_SUZHO
BAT54_SUZHO
R3307
1.8K
DDC_SDA_MHL
DDC_SCL_MHL
5V_HDMI_1_SOC
EDID_WP
HDMI_EXT_EDID
R3390
10K
R3323
47K
HDMI_EXT_EDID
CK-_HDMI4_MHL
CK+_HDMI4_MHL
D0-_HDMI4_MHL
D0+_HDMI4_MHL
D1-_HDMI4_MHL
D1+_HDMI4_MHL
D2-_HDMI4_MHL
D2+_HDMI4_MHL
+5V_NORMAL
A2CA1
MMBD6100
D3300
R3325
47K
HDMI_EXT_EDID
R3348
10K
#MHL_OCP
C3312
10uF
10V
DDC_SCL_1_SOC
DDC_SDA_1_SOC
CHANGE NET Demod_Core
Demod_Core
BLM18PG121SN1D
TU_DEMOD_CORE
VDD3V3_HDMI
5V_MHL
HDMI_HPD_4_MHL
R3358
4.7K
OPT
MHL_DET
TP3300
5VBUS
D3322
R3359
100K
#MHL_OCP
30V
C3302
0.1uF
16V
L3302
C3311
0.1uF
16V
1.2V_MHL
C3318
0.1uF
16V
R3357
10K
Current Limit
OUT
1
GND
2
OC
3
+5V_NORMAL
A2CA1
R3339
R3337
47K
47K
Close to SIL1292
C3320
C3316
0.1uF
0.1uF
16V
16V
+5V_NORMAL
BLM18PG121SN1D
5V_MHL
R3362
10K
C
Q3310
B
MMBT3904(NXP)
E
IC3301
TPS2051BDBVR
D3314
MMBD6100
L3301
IN
5
ZD501
5V
OPT
EN
4
R3340
47K
HDMI_INTERNAL_EDID
R3377
47K
R3332
5V_MHL
HDMI_DET
5V_MHL
10K
R3378
C3321
0.1uF
16V
C3315
0.1uF
16V
MHL_DET
47K
HDMI_INTERNAL_EDID
DDC_SCL_1_SOC
DDC_SDA_1_SOC
DDC_SDA_MHL
DDC_SCL_3_JACK
DDC_SDA_3_JACK
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
HDMI 4
2013.07.16
533
Page 49
UART FOR DEBUG
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SOC_RX
SOC_TX
+3.5V_ST
UART_4PIN_STRAIGHT
P3800
12507WS-04L
1
2
3
4
5
AV/COMPONENT REAR
RCA_JACK_MOLD_B/C
PPJ245N2-01
JK3802
[GN/YL]E-LUG
6A
[GN/YL]O-SPRING
5A
[GN/YL]CONTACT
4A
[BL]O-SPRING
5B
[RD1]E-LUG-S
7C
[RD1]O-SPRING
5C
[RD1]CONTACT
4C
[WH]O-SPRING
5D
4E
[RD2]CONTACT
5E
[RD2]O-SPRING
6E
[RD2]E-LUG
COMP1_Pb
COMP1_Pr
D3801
5.6V
+3.3V_NORMAL
D3803
5.6V
COMP1/AV1/DVI_L_IN
D3802
5.6V
OPT
C3800
0.1uF
R3806
10K
R159
1K
COMP1/AV1/DVI_R_IN
R3822
0
AV1_CVBS_DET
+3.3V_NORMAL
R3810
10K
D3800
5.6V
COMP1_Y/AV1_CVBS
OPT
C3801
0.1uF
R164
1K
COMP1_DET
RCA_JACK_PRESS_B/C
JK3802-*1
PPJ245-01
[RD2]E-LUG
7E
[RD2]C-SPRING
6E
[RD2]CONTACT
4E
[WH]C-SPRING
5D
[RD1]CONTACT
4C
[RD1]C-SPRING
6C
[RD1]E-LUG-S
8C
[BL]C-SPRING
5B
[GN]CONTACT
4A
[GN]C-SPRING
6A
[GN]E-LUG
7A
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
JACK_COMMON
2011.11.21
38
Page 50
/USB_OCD1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
USB_CTL1
R4500
10K
OPT
+3.3V_NORMAL
R4501
10K
+5V_NORMAL
C4500
0.1uF
16V
OCP USB1
IC4500
AP2171DM8G
GND
1
IN_1
2
IN_2
3
EN
4
USB1
DVR Ready
+5V_USB_1
MAX 1.5A
+5V_USB_1
NC
8
OUT_2
7
OUT_1
6
FLG
5
C4501
10uF
10V
USB_DM1
USB_DP1
USB_Serial_2.2ohm
USB_Serial_2.2ohm
C4502
10uF
10V
R4502
2.2
R4503
2.2
3AU 04S -30 5- ZC- (LG )
JK4 500
1234
USB DO WN ST REA M
5
USB_Serial_0ohm
R4502-*1
0
USB_Serial_0ohm
R4503-*1
0
C4302
0.1uF
16V
USB_CTL2
USB_CTL3
OCP USB2/3
+5V_NORMAL
GND
IN
EN1
EN2
USB2/3_OCP_TI
DIODES TAIWAN INC
GND
IN
EN1
EN2
USB2/3_OCP_DIODES
IC4306
TPS2066CDGNR
1
9
2
THERMAL
3
4
IC4306-*1
1
9
2
THERMAL
3
4
8
7
6
5
8
7
6
5
[EP]GND
FLT1
OUT1
OUT2
FLT2
C4337
10uF
[EP]GND
FLG1
OUT1
OUT2
FLG2
+5V_USB_2
+3.3V_NORMAL
10K
10K
R4301
R4302
+5V_USB_2
+5V_USB_3
C4301
10uF
10V
10V
/USB_OCD2
/USB_OCD3
USB_DM2
USB_DP2
+5V_USB_3
C4322
10uF
10V
USB2
MAX 1.5A
USB_Serial_2.2ohm
R4303
2.2
USB_Serial_2.2ohm
R4304
2.2
USB3
3AU 04S -30 5- ZC- (LG )
JK4 302
1234
USB DO WN ST REA M
5
USB_Serial_0ohm
R4303-*1
0
USB_Serial_0ohm
R4304-*1
0
MAX 1.5A
3AU 04S -30 5- ZC- (LG )
USB_DM3
USB_DP3
C4310
10uF
10V
USB_Serial_2.2ohm
R4305
2.2
USB_Serial_2.2ohm
R4306
2.2
JK4 300
USB_Serial_0ohm
1234
USB_Serial_0ohm
USB DOWN STREAM
5
R4305-*1
0
R4306-*1
0
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
USB2_USB3
2013.11.25
543
Page 51
JK5000
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
RJ45VT-01SN002
9
9
Ethernet Block
C5000
C5001
0.1uF
0.01uF
16V
50V
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D5000
5.5V
LAN_ESD
D5001
5.5V
LAN_ESD
D5002
5.5V
LAN_ESD
D5003
5.5V
LAN_ESD
EPHY_TDP
EPHY_TDN
EPHY_RDP
EPHY_RDN
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
LAN_VERTICAL
2013.11.26
550
Page 52
Global F/E Option Name
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. TU
2. Tuner Name = TDS’S’,TDS’Q’...
3. Country Name = T,T2,S2,KR,US,BR ...
Example of Option name
TU_Q_T2 = apply TDSQ type tuner and T2 country
TU_M/W = apply TDSM&TDSW Type Tuner
13’ Tuner Type for Global
TDS’S’-G501D : T/C Half NIM Horizontal Type
TDS’Q’-G501D : T/C/S2 Combo Horizontal type
TDS’Q’-G601D : T2/C/S2 Combo Horizontal Type
TDS’Q’-G651D : T2/C/S2 Combo Vertical Type
TDS’Q’-G705D : Singapore DVB-T2 (V1.3.1)
TDS’M’-C601D : China NIM with Isolater Type
TDS’W’-J551F : Japan Dual NIM
TDS’W’-B651F : Brazil 2Tuner
TDS’W’-A651F : Taiwan 2Tuner
TDS’W’-K651F : Colombia DVB-T2 2Tuner
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
RF_SWITCH_CTL
Ground Width >= 24mils
IF_AGC
TU_HK
R6513 0
+3.3V_TUNER
TU_HK
L6501-*1
0
1/10W
5%
I2C_SCL4
I2C_SDA4
+3.3V_NORMAL
C6508
0.1uF
16V
TUNER_SIF
TU_NO_DEMOD_CORE
IC6515
AZ1117BH-1.2TRE1
OUTIN
GND/ADJ
+3.3V_TUNER
TU_HK
R6516
200
E
TU_HK
B
Q6502
MMBT3906(NXP)
C
1.2V_MHL
TU_NO_DEMOD_CORE
1608 perallel
because of derating
TU_HK
R6517
200
TU_NO_DEMOD_CORE
R6515
1
C6514
10uF
10V
TU_CVBS
C6519
0.1uF
16V
TU_NO_DEMOD_CORE
+3.3V_TUNER
+5V_NORMAL
C6515
1uF
+3.3V_NORMAL
BLM18PG121SN1D
C6526
0.1uF
16V
TU_DEMOD_CORE
IC6500
TU_DEMOD_CORE
R6518
10K
AP2132MP-2.5TRG1
1
PG
2
EN
3
VIN
2A
4
VCTRL
EAN61387601
TU_DEMOD_CORE
C6516
0.1uF
TU_DEMOD_CORE
Vout=0.6*(1+R1/R2)
DELETE 1.8V POWER
L6502
9
THERMAL
mA(MAX)
8
7
6
5
[EP]
C6529
22uF
10V
85C
GND
ADJ
VOUT
NC
/TU_RESET2_TU
+3.3V_TUNER
C6530
0.1uF
16V
R6519
11K
1%
R6520
10K
1%
T2 : Max 1.7A
else : Max 0.7A
TU_1.2V
R6521
20K
R2
1%
TU_1.2V
R1
TU_1.2V
TU_DEMOD_CORE
Demod_Core
R6521-*1
18K
14K
R6519-*1
2K
R6520-*1
C6518
10uF
16V
/TU_RESET2
FE_DEMOD1_TS_ERROR
TU_1.1V
TU_1.1V
TU_1.1V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
TUNER_CIRCUIT
2013.07.16
565
Page 53
LVDS
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LVDS_51PIN
P7100
FI-RE51S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
GND
[51Pin LVDS OUTPUT Connector]
NC
NC
NC
NC
NC
AUO_65_MIRROR
LVDS_SEL
NC
NC
L/DIM_ENABLE
GND
RA0N
RA0P
RA1N
RA1P
RA2N
RA2P
GND
RACLKN
RACLKP
GND
RA3N
RA3P
RA4N
RA4P
GND
BIT_SEL
RB0N
RB0P
RB1N
RB1P
RB2N
RB2P
GND
RBCLKN
RBCLKP
GND
RB3N
RB3P
RB4N
RB4P
GND
GND
GND
GND
GND
NC
VLCD
VLCD
VLCD
VLCD
R7100 33
LGD_2D/3D_CTRL
R7105 33
CP_BOX
R7106 33
CP_BOX
R710733
LGD_T-Con_Scanning
R7110
33
AUO_L/D_EN
R7108
OPC_EN
33
R71090
OPT
PANEL_VCC
2D/3D_CTL
I2C_SDA1
I2C_SCL1
PWM_DIM1
OPC_EN
L7100
BLM18SG121TN1D
LVDS_51PIN
C7100
10uF
16V
OPT
TXA0N
TXA0P
TXA1N
TXA1P
TXA2N
TXA2P
TXACLKN
TXACLKP
TXA3N
TXA3P
TXA4N
TXA4P
TXB0N
TXB0P
TXB1N
TXB1P
TXB2N
TXB2P
TXBCLKN
TXBCLKP
TXB3N
TXB3P
TXB4N
TXB4P
C7101
1000pF
50V
OPT
LVDS_SEL
+3.3V_NORMAL
R7101
3.3K
LVDS_SEL_HIGH
R7102
10K
LVDS_SEL_LOW
BIT_SEL
C7102
0.1uF
50V
OPT
[41Pin LVDS OUTPUT Connector]
LVDS_41PIN
P7101
FI-RE41S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
R7103
10K
BIT_SEL_LOW
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
GND
NC
NC
NC
NC
NC
NC
NC
NC
GND
RC0N
RC0P
RC1N
RC1P
RC2N
RC2P
GND
RCCLKN
RCCLKP
GND
RC3N
RC3P
RC4N
RC4P
GND
GND
RD0N
RD0P
RD1N
RD1P
RD2N
RD2P
GND
RDCLKN
RDCLKP
GND
RD3N
RD3P
RD4N
RD4P
GND
GND
R7104 33
AUO_2D/3D_CTRL
2D/3D_CTL
TXC0N
TXC0P
TXC1N
TXC1P
TXC2N
TXC2P
TXCCLKN
TXCCLKP
TXC3N
TXC3P
TXC4N
TXC4P
TXD0N
TXD0P
TXD1N
TXD1P
TXD2N
TXD2P
TXDCLKN
TXDCLKP
TXD3N
TXD3P
TXD4N
TXD4P
LVDS_HD
[30Pin HD 60Hz]
HD
P7102
10031HR-30
T-CON
Pin
Assign
GND
NC
NC
NC
GND
RD+
RD-
GND
RCL+
RCLK-
GND
RC+
RC-
GND
RB+
RB-
GND
RA+
RA-
GND
NC
LVDS SEL
GND
GND
GND
GND
VLCD
VLCD
VLCD
VLCD
1
30
2
29
3
28
4
27
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13
18
14
17
15
16
16
15
17
14
18
13
19
12
20
11
21
10
22
9
23
8
24
7
25
6
26
5
27
4
28
3
29
2
30
1
31
Pin Assign is same as
LN570B LVDS Cable
(EAD62296501)
TXA0N
TXA0P
TXA1N
TXA1P
TXA2N
TXA2P
TXACLKN
TXACLKP
TXA3N
TXA3P
LVDS_SEL
+3.3V_NORMAL
OPT
R1109
3.3K
OPT
R1110
10K
PANEL_VCC
120OHM
HD
L1101
UBW2012-121F
HD
C1101
0.1uF
16V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Vertical/Horizontal bar, residual image, light spot
,
,g,p
First of all, Ch
SVC Bulletin in GCSC Syst
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No.Error symptom (High category
1No video/Normal audio 1
2 No video/No audio2
3
4Color error4
5
6
7Off when on
8
9Wrecked audio/discontinuation/noise9
A. Video error
B. Power error
C. Audio error
Picture broken/ Freezing
external device color error
No power6
No audio/Normal video 8
Error symptom (Mid category
,
off while viewing, power auto on/off7
PageRemarks
3
5
10
D. Function error
11External device recognition error 11
12E. NoiseCircuit noise, mechanical noise12
13F. Exterior errorExterior defect13
14APPENDIXPower Off History
eck whether there is
Remote control & Local switch checking
1/ 97
10
em for these model.
Page 56
Contents of LCD TV Standard Repair Process Detail Technical Manual
9
LCD TV
A8
(
residual image, light spot
()
A11
A11
AUO
17
Exchange T
Con Board (2)
A-2/5
g
)
A
g()
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No.Error symptomContentPageRemarks
1
Check LCD back light with naked eyeA1
2LED driver B+ 24V measuring methodA2
A. Video error_ No video/Normal audio
3Check White Balance valueA3
4Power Board voltage measuring methodA5
6
TUNER input signal strength checking methodA6
A. Video error_ No video/Video lag/stop
7LCD-TV Version checking methodA7
connection diagram
10Tuner Checking PartA9
A. Video error_Color error
A10
11Check Link Cable (LVDS) reconnection condition
A11
12Adjustment Test pattern - ADJ KeyA12
13
14Check Link Cable
A. Video error_Vertical/Horizontal bar,
LCD TV connection diagram A8
A10
LVDS) reconnection condition
A10 : 32/37/42/47/55
A11 : 32 AUO
A10 : 32/37/42/47/55
: 32
15Adjustment Test pattern - ADJ KeyA12
16Exchange T-Con Board (1)A-1/5
<Appendix>
18Exchange LED driver Board (PSU) A-3/5
Defected Type caused by T-Con/ Inverter/
Module
19Exchan
20Exchange Module itself (2)A-5/5
-
e Module itself (1
2/ 97
55” : driver board
Other : PSU
-4/5
Page 57
Standard Repair Process
dat
Error
A.Videoerror
(
)
2014. 1 .2
A
(,,p,,
)
j
Repair Power
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Established
LCD TV
First of all, Check whether all of cables between board is inserted properly or not.
Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable,ETC…
symptom
No video/ Normal audio
Revised date
☞A4☞A1
e
1/13
No video
Normal audio
※Precaution
Always check & record S/W Version and White
Balance value before replacing the Main Board
Normal
audio
Move to No
video/No audio
☞A7 & A3
Y
N
Check Back Light
On with naked eye
☞A2
Check Power Board 24V output
On
Normal
voltage
Board or parts
Replace Main Board
Y
N
N
Check Power Board
12V,3.5V etc.
Replace Inverter
Y
or module
Normal
voltage
Repair Power Board
or parts
End
Re-enter White Balance value
Y
N
Replace T-con Board
or module
nd Adjust VCOM
☞A28
3/ 97
Page 58
Standard Repair Process
A.Videoerror
dat
Error
2014. 1 .2
C
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
No Video/
No audio
☞A4
heck various voltages
of Power Board
( 3.5V,12V or 24V…)
No video/ No audio
Normal
voltage?
Y
Check and
replace
MAIN B/D
Established
e
Revised date
2/13
N
Replace Power
Board and repair
parts
End
4/ 97
Page 59
Standard Repair Process
dat
Error
2014. 1 .2
A.Videoerror
A6
N
Y
Y
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Picture broken/ Freezing
Established
e
Revised date
3/13
☞
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Normal
Picture?
Close
Y
N
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu → Chanel Settings → Antenna Settings → Signal Test )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
☞ A7
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
Y
Check
S/W Version
SVC
Bulletin?
S/W Upgrade
Normal
Picture?
N
Check
Tuner soldering
N
Replace
Main B/D
Y
Close
5/ 97
Page 60
A
r
Standard Repair Process
dat
Error
2014. 1 .2
☞
A8
contact
N
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check color by input
-External Input
-COMPONENT
-AV
-HDMI/DVI
☞A12
Check Test pattern
symptom
Color
error?
Check error color
input mode
Y
N
External Input/
Component/ AV
. Video erro
Color error
☞ A10/ A11
※ Check and
replace Link
Cable
(LVDS) and
condition
error
Color
error?
N
Check
external
device and
cable
Y
Replace Main B/D
Established
e
Revised date
External device
/Cable
normal
Color
error?
End
Y
4/13
Y
Replace module
N
Replace Main B/D
HDMI/DVI
error
Check external
device and
cable
6/ 97
Request repair
for external
device/cable
N
External device
/Cable
normal
Y
Replace Main B/D
Page 61
A
r
Standard Repair Process
dat
Error
2014. 1 .2
Module
HDMI/DVI
error
andcable
Repl
Screen
HDMI/
B
End
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
. Video erro
LCD TV
symptom
Vertical / Horizontal bar, residual image,
light spot, external device color error
Vertical/Horizontal bar, residual image, light spot
☞A8
Check color condition by input
-External Input
-Component
-AV
-
☞A12
Check Test pattern
Screen
normal?
N
Replace
module
Check external
Y
device
connection
condition
Request repair
for external
device
External device screen error-Color error
Check screen
condition by input
Check S/W Version
Check
version
S/W Upgrade
N
Y
-External Input
-Component
-AV
-HDMI/DVI
Normal?
N
Component/AV
☞ A10/ A11
Check and
Y
replace Link
Cable
External
Input
error
Established
e
Revised date
☞ A28
Screen
normal?
N
Replace Main B/D
(adjust VCOM)
For LGD panel
Y
End
Replace Main B/D
For other panel
Connect other external device
(Check normal operation of
External Input, Component, AV
and HDMI/DVI by connecting Jig,
pattern Generator ,Set-top Box
etc.
N
normal?
Y
Request repair for
external device
5/13
Replace
N
Screen
normal?
Y
End
ace
Main B/D
Normal
screen?
Y
N
DVI
Connect other external device
and cable
(Check normal operation of
External Input, Component, AV
and HDMI/DVI by connecting
Jig, pattern Generator ,Set-top
ox etc.
Y
Screen
normal?
N
Replace
Main B/D
7/ 97
Page 62
r
Standard Repair Process
dat
Error
2014. 1 .2
☞
A17
☞
A19
Check ST
5V
Normal
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check
Power LED
. Stand-By: Red
. Operating : off
symptom
Power LED
On?
N
Check Power cord
was inserted properly
Normal?
Y
N
Close
Y
※
☞A18
B. Power erro
No power
DC Power on
by pressing Power Key
On Remote control
-BY 3.
Y
Y
voltage?
N
Established
e
Revised date
Normal
operation?
N
Check Power
On ‘”High”
Y
Replace Main B/D
☞A4
Measure voltage of each output of Power B/D
Normal
voltage?
Replace Power B/D
Y
N
Replace Main B/D
OK?
Y
6/13
Replace
Power
B/D
Replace Power
B/D
8/ 97
Page 63
r
Standard Repair Process
dat
Error
2014. 1 .2
p
p
g
1
g
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check outlet
Check A/C cord
Check for all 3- phase
ower out
symptom
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
B. Power erro
Off when on, off while viewing, power auto on/off
☞A22
N
Check Power Off
Mode
☞A19
(If Power Off mode is
not displayed)
Check Power B/D
voltage
※ Caution
Check and fix exterior
of Power B/D Part
Established
Revised date
CPU
Abnormal
Abnormal
Normal
e?
volta
N
Replace Power B/D
e
Replace Main B/D
Y
Replace Main B/D
Normal?
Replace Power B/D
Y
N
7/13
End
* Please refer to the all cases which can be displayed on power off mode.
Click the below Hyper_link
9/ 97
Page 64
Standard Repair Process
C.Audioerror
dat
Error
2014. 1 .2
Screen normal
Speaker?
voltage
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
☞A24☞A25
No audio/ Normal video
Established
e
Revised date
8/13
No audio
Check user
menu >
Sound Out
TV
Change the TV Speaker
Check Speaker
disconnection
Y
N
Check audio B+ 24V
of Power Board
Replace Power Board and repair parts
Y
Replace Speaker / Cable
Normal
N
Replace MAIN Board
Y
N
EndDisconnection
10 / 97
Page 65
Standard Repair Process
C.Audioerror
dat
Error
2014.1.2
Signal
W
/
R
Repl
B/D
End
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
Check input
signal
-RF
-External Input
signal
symptom
normal?
N
Y
(When RF signal is not
received)
equest repair to external
cable/ANT provider
(In case of External
Input signal error)
Check and fix
external device
Wrecked audio/ discontinuation/noise
Wrecked audio/
Discontinuation/
Noise for
all audio
Wrecked audio/
Discontinuation/
Noise only
for D-TV
recked audio
Discontinuation/
Noise only
for Analog
Wrecked audio/
Discontinuation/
Noise only
for External Input
Established
Revised date
Check and replace
speaker and
connector
Replace Main B/D
Connect and check
other external device
e
9/13
☞A25
Check audio
B+ Voltage (24V)
Y
Normal
voltage?
N
Replace Power B/D
ace Main
N
Normal
audio?
Y
Check and fix external device
11 / 97
Page 66
Standard Repair Process
dat
Error
2014.1.2
Y
N
N
p
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Remote control & Local switch checking
1. Remote control(R/C) operating error
☞A27
Check R/C itself
Operation
Check R/C Operating
When turn off light
in room
If R/C operate,
Explain the customer
cause is interference
from light in room.
Normal
operating?
N
Check & Replace
Baterry of R/C
Y
Normal
operating?
Check & Repair
Cable connection
Connector solder
Close
N
D. General Function Problem
☞A27
Normal
operating?
Close
N
Check B+ 3.5V
On Main B/D
Established
e
Revised date
☞A27
Normal
Voltage?
Y
Output signal
☞A4
Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
Check IR
10/13
Replace
Main B/D
Normal
Signal?
Repair/Replace
IR B/D
Y
Replace R/C
12 / 97
Page 67
r
Standard Repair Process
dat
Error
2014.1.2
input
g
C
t
Replace Main B/D
DVI,Optical
Replace Main B/D
Fix in
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check
signal
D. Function erro
symptom
Y
Signal
input?
N
Check and fix
external device/cable
External device recognition error
Check technical
information
- Fix information
information?
-S/W Version
accordance
with technical
Technical
Y
information
External Input and
N
Recognition error
Recognition error
omponen
HDMI/
Established
e
Revised date
11/13
13 / 97
Page 68
Standard Repair Process
dat
Error
2014.1.2
of noise
noise type
noise
noise
(For models without any fix information, provide
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Identify
E. Noise
symptom
Circuit
Mechanical
noise
※ Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※ Describe the basis of the description in
“Part related to nose” in the Owner’s Manual.
Check location
Check location of
Circuit noise, mechanical noise
OR
Replace PSU(with LED driver)
Replace LED driver
※ When the nose is severe, replace the module
(For models with fix information, upgrade the S/W or
provide the description)
OR
※ If there is a “Tak Tak” noise from the cabinet,
refer to the KMS fix information and then proceed
as shown in the solution manual
the description)
Established
e
Revised date
12/13
14 / 97
Page 69
Standard Repair Process
F. Exterior defect
dat
Error
2014.1.2
Cabinet
damage
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Exterior defect
Established
e
Revised date
13/13
Zoom part with
exterior damage
Module
damage
damage
Remote
controller
Stand
dent
Replace module
Replace cabinet
Replace remote controller
Replace stand
Adjust VCOM
☞A28
15 / 97
Page 70
Contents of LCD TV Standard Repair Process Detail Technical Manual
ppg
22
Check power input Voltage & ST
-
BY 3.5V
A18
25
viewing
there is no audio
controller, key error
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Continued from previous page
No.Error symptomContentPageRemarks
21Check front display LEDA17
23Checking method when power is ONA19
24POWER BOARD voltage measuring methodA5
26
27
28
29
30
31
B. Power error_No power
B. Power error_Off when on, off while
viewing
B. Power error_Off when on, off while
C. Audio error_No audio/Normal video
C. Audio error_Wrecked
audio/discontinuation
D. Function error_ No response in remote
POWER OFF MODE checking methodA22
POWER BOARD PIN voltage checking methodA19
Checking method in menu when there is no
audio
Voltage and speaker checking method when
Voltage and speaker checking method in case of
audio error
Remote controller operation checking methodA27
A24
A25
A25
32D. VCOM AdjustmentSequence of the Vcom adjustmentA28
16 / 97
Page 71
Standard Repair Process Detail Technical Manual
A. Video error_No video/Normal audio
t
2014.1.2
3. AfterrecordingtheR, G, B(GAIN, Cut)valueofColorTemp(Cool/Medium/Warm), re
-
3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
<ALL MODELS>
Error
symp
Content
om
Check White Balance value
Established
date
Revised
date
A3
Entry method
Entry method
1. Press the ADJ button on the remote controller for adjustment.
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 6.
2. Enter into White Balance of item 7.
enter the value after replacing the MAIN BOARD.
enter the value after replacing the MAIN BOARD.
17 / 97
-
Page 72
Standard Repair Process Detail Technical Manual
A. Video error_No video/ Audio
t
2014.1.2
9
24V
10
24V
17
GND
18
GND
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
① Check the contact condition of or 24V connector of Main Board
② Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
onnect the tester
to the speaker terminal and if you hear the
and output terminal, the speaker is normal.
29 / 97
The Wafer,18Pin and 24Pin, is used by operating LocalDimming or not
LocalDimming
-
n wafer is applied operating L/D at power and main
- 18Pin wafer is applied not operating L/D at power and main B/D
sound when you touch the
Page 84
Standard Repair Process Detail Technical Manual
k
r
t
2014. 1 .6
P4102
9
EYE_SCL
g
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
<ALL MODELS>
Error
symp
Content
D. Function error_ No response in remote controller,
om
ey erro
Remote controller operation checking method
Established
date
Revised
date
③
④
A27
1
2
3
4
5
6
7IR
8GND
10EYE_SDA
GND
KEY1
KEY2
+3.5V_ST
GND
LOGO/LED_R
①
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 6.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog
Tester needle moves slowly, and defective when it does not move at all.
②
30 / 97
Page 85
Standard Repair Process Detail Technical Manual
D. VCOM Adjustment
t
2014.1.2
■
LCD
■
ServiceRemotecontroller
■
A
COM
Which i
y
y
j
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Error
symp
Content
om
Sequence of the Vcom adjustment
Established
date
Revised
date
1. Case
module change
■ T-Con board change
2. Equipment
3. Adjust sequence
■ Press the ‘adj’ key
■ select V-COM
s pushing the right or the left button on the remote controller, And find the V-
minimized the Flicker.
(If there is no flicker at default value, Press the exit key and finish the VCOM adjustment.)
■ Push the OK key to store the value. Then the message “Saving OK” is pop.
■ Press the exit ke
to finish V-COM adjustment.
value
A28
s no or
31 / 97
Page 86
Appendix : Power OFF History
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
StatusPower off ListExplanation
POWER_OFF_BY_REMOTE KEY POWER_OFF_BY_REMOTE CONTROL
POWER_OFF_BY_OFF_TIMERPOWER_OFF_BY_OFF TIMER
POWER_OFF_BY_SLEEP_TIMERPOWER_OFF_BY_SLEEP TIMER
POWER_OFF_BY_TS_ENDPOWER_OFF_BY_REMOTE or LOCAL KEY While recording
POWER_OFF_BY_INSTOP_KEYPOWER_OFF_BY_INSTOP KEY
POWER_OFF_BY_AUTO_OFFPOWER_OFF_BY_AUTO OFF
POWER_OFF_BY_ON_TIMERPOWER_OFF_BY_ON TIMER
Normal
Abnormal POWER_OFF_BY_5VMNTPOWER_OFF_BY_AC DETECT
POWER_OFF_BY_RS232CPOWER_OFF_BY_RS232C
POWER_OFF_BY_RESRECPOW ER_OFF_BY_Reservated Record