DOWNLOAD LG 55LM610C / 55LM615S / 55LM615T (CHASSIS:LD21B) Service Manual ↓ Size: 6.52 MB | Pages: 56 in PDF or view online for FREE

Model
55LM610C 55LM615S 55LM615T (CHASSIS:LD21B)
Pages
56
Size
6.52 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm610c-55lm615s-55lm615t-chassis-ld21b.pdf
Date
PREV: LG 55LM9600 (CHASSIS:LT23E) Service Manual

LG 55LM610C / 55LM615S / 55LM615T (CHASSIS:LD21B) 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.
2011/12/23
TUNER_EU
26
GP4L_S7LR2
FE_TS_DATA[1]
FE_TS_DATA[4]
FE_TS_DATA[3]
FE_TS_DATA[7]
FE_TS_DATA[6]
FE_TS_DATA[5]
FE_TS_DATA[2]
FE_TS_DATA[0]
C2630
0.1uF
16V
R2607
0
OPT
C2625
0.1uF
16V
DVB_S
C2648
0.1uF
16V
C2633
0.1uF
16V
T2
FE_TS_VAL_ERR
LNB_OUT
TU_SDA
C2644
0.1uF
16V
R2608
0
HALF_NIM/EU_NON_T2
C2628
10uF
10V
OPT
L2603
BLM18PG121SN1D
T2
TU_SIF
DEMOD_SCL
L2602
BLM18PG121SN1D
DVB_S
C2603
0.1uF
16V
RF_SW_OPT
AR3702-*1
33
1/16W
DVB_S
+2.5V_TU
+3.3V_TU
+3.3V_TU
FE_TS_VAL
C2617
0.1uF
16V
T2
R2616
4.7K
C2605
33pF
50V
OPT
C2646
22uF
10V
R2601
0
HALF_NIM/EU_NON_T2
R2604
22
DVB_S
C2609
33pF
50V
DVB_S
IC2600
AP2114H-2.5TRG1
OPT
GND
VOUT
VIN
+3.3V_TU
FE_TS_SYNC
AR3701-*1
33
1/16W
DVB_S
C2640
0.1uF
16V
OPT
+3.3V_TU
+3.3V_S2_DE
R2611
100
R2620
1
1/16W
5%
OPT
AR3702
47
FULL_NIM_NON_S
C2600
0.1uF
16V
R2621
0
FE_TS_CLK
C2643
22uF
10V
R2619
82
FE_TS_ERR
RF_SWITCH_CTL
C2629
0.1uF
16V
OPT
LNB_TX
R2627
0
OPT
TU_CVBS
C2613
18pF
50V
OPT
C2627
0.1uF
16V
OPT
C2611
0.1uF
16V
DVB_S
IF_AGC_MAIN
DEMOD_SDA
R2606
0
T2
R2622
1K
OPT
R2614
100K
L2600
BLM18PG121SN1D
DVB_S
R2610
TU_I2C_NON_FILTER
33
R2871
1K
R2615
0
OPT
+3.3V_T2_TU
C2618
10uF
6.3V
T2
+3.3V_TU
C2631
10uF
10V
T2
AR3703
47
FULL_NIM_NON_S
+3.3V_TU
C2622
0.1uF
16V
IF_P_MSTAR
R2609
TU_I2C_NON_FILTER
33
C2616
0.1uF
16V
T2
AR3701
47
FULL_NIM_NON_S
C2614
100pF
50V
T2
AR3703-*1
33
1/16W
DVB_S
+1.23V_TU
C2624
100pF
50V
DVB_S
C2623
0.1uF
16V
C2608
100pF
50V
DVB_S
FE_TS_ERR
R2624
220
C2601
0.1uF
16V
OPT
R2870
1K
R2602
0
HALF_NIM/EU_NON_T2
C2604
0.1uF
16V
S2_RESET
C2602
100pF
50V
C2621
100pF
50V
R2628
0
FE_TS_DATA[0-7]
IF_N_MSTAR
+2.5V_TU
+3.3V_Normal
C2634
0.1uF
16V
DVB_S
L2601
BLM18PG121SN1D
T2
+1.23V_TU
+3.3V_TU
R2613
10
DVB_S
TU_SCL
C2626
0.1uF
16V
R2605
22
DVB_S
+3.3V_T2_TU
+3.3V_TU
R2631
0
OPT
R2612
2.2K
DVB_S
TUNER_RESET
R2600
51
DVB_S
+3.3V_TU
R2625
220
R2603
0
RF_SW_OPT
D2600
20V
3.0SMCJ20A(suzhougrande)
DVB_S
C2610
18pF
50V
OPT
C2619
0.1uF
16V
DVB_S
FE_TS_VAL
+1.23V_TU
C2615
10uF
10V
DVB_S
C2620
0.1uF
16V
T2
C2632
10uF
10V
DVB_S
+3.3V_S2_DE
TU2601
TDSQ-G001D 
TU_T/C/S2
1
NC_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
T/C_IF_AGC
10
T/C_DIF[P]
11
T/C_DIF[N]
12
NC_2
13
NC_3
14
NC_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
+B3[1.23V]
31
S2_RESET
38
SHIELD
32
+B4[3.3V]
33
S2_F22_OUTPUT
34
S2_SCL
35
S2_SDA
36
LNB
37
GND_4
TU2602
TDSS-G101D
TU_T/C
5
+3.3V
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+1.8V
6
SIF
12
SHIELD
TU2603
TDSN-G301D
TU_T2/C
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
C2606
100uF
16V
OPT
R2618
470
Q2601
MMBT3906(NXP) 
E
B
C
Q2600
MMBT3906(NXP) 
E
B
C
+3.3V_TU
C2635
0.1uF
16V
LNA2_CTL
+1.8V_TU
IF_AGC_SEL
C2645
0.1uF
16V
FULL_NIM
DEMOD_RESET
C2641
0.1uF
16V
R2632
1
R2629
3.3K
FULL_NIM
+1.23V_TU
C2647
10uF
10V
FULL_NIM
IC2603
AP1117E18G-13 
OUT
INADJ/GND
IC2602
TJ4220GDP-ADJ 
FULL_NIM
3
VIN3
2
EN2
4
NC4
1
NC_1
5
NC_2
6
VOUT
7
ADJ/SENSE
8
GND
9
[EP]GND
C2642
10uF
10V
R2873
200
1%
OPT
R2633
12K
1%
FULL_NIM
R2634
22K
1%
FULL_NIM
L2606
CIS21J121
R2872
0
C2649
18pF
50V
OPT
C2650
18pF
50V
DVB_S
R2874
2.2K
1W
DVB_S
IC2601
74LVC1G08GW 
OPT
3
2
4
1
5
TU2603-*1
TDSN-C201D
TU_CHINA
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
D7
27
D8
28
SHIELD
C2607
20pF
50V
C2612
20pF
50V
C2651
20pF
50V
C2652
20pF
50V
+1.8V_TU
R2875-*1
MLB-201209-0120P-N2
DVB_S_FILTER
R2875
0
DVB_S_NON_FILTER
R2876
0
OPT
T2_DMOD_CAM
R2609-*1
MLG1005SR27JT
TU_I2C_FILTER
R2610-*1
MLG1005SR27JT
TU_I2C_FILTER
GP4R_GLOBAL_TUNER_BLOCK
close to TUNER
Pull-up can’t be applied 
because of MODEL_OPT_2
ERROR & VALID PIN 
Surge protectioin
should be guarded by ground
GPIO must be added.
Close to TUNER
close to TUNER
close to TUNER
R1
Close to the tuner
VREF=1.25V
R2
Vo=0.8*(1+R2/R1)
R2
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet. 
Vo=VREF*(1+R2/R1)
R1
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.
2011/11/02
DVB_S
27
GP4L_S7LR2
R2704
4.7K
LNB
A_GND
+3.3V_Normal
DCDC_GND
C2700
0.22uF
25V
LNB
A_GND
C2711
10uF
25V
LNB
L2700
33UH
SP-7850_33
LNB
LNB_TX
+12V_LNB
C2702
0.1uF
LNB
C2709
27pF
OPT
R2701
33
LNB
LNB_OUT
C2707
68uF
35V
LNB
L2701
BLM18PG121SN1D
LNB
DEMOD_SCL
R2702
33
LNB
DCDC_GND
A_GND
A_GND
C2706
22000pF
LNB
+12V/+15V
C2703
0.1uF
50V
LNB
A_GND
DCDC_GND
DCDC_GND
+12V_LNB
A_GND
DEMOD_SDA
IC2700
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]
C2708
0.22uF
LNB
C2701
0.01uF
50V
LNB
C2710
27pF
OPT
A_GND
C2705
68uF
35V
LNB
A_GND
R2706
0
R2705
0
D2700
40V
SX34
LNB
D2702
40V
SX34
LNB
C2712
0.1uF
50V
LNB
A_GND
ZD1
40V
LNB
D2703
30V
MBR230LSFT1G
LNB
C2713
1uF
50V
LNB
A_GND
DVB-S2 LNB Part Allegro
DCDC_GND and A_GND are connected
(Option:LNB)
2.4A
Input trace widths should be sized to conduct at least 3A
DCDC_GND and A_GND are connected in pin#27
close to Boost pin(#1)
2A
Ouput trace widths should be sized to conduct at least 2A
Max 1.3A
PCB_GND and A_GND are connected
3A
close to VIN pin(#25)
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.
REAR_JACK_EU
2012/01/06
28
GP4L_S7LR2
R2801
0
EU_OPT
R2821
390
EU_OPT
R2820
390
EU_OPT
R2869
10K
EU_OPT
IC2800-*1
SN324
EU_OPT_AUK
3
NON_INV_IN1
2
INV_IN1
4
VCC
1
OUT1
6
INV_IN2
5
NON_INV_IN2
7
OUT2
8
OUT3
9
INV_IN3
10
NON_INV_IN3
11
GND
12
NON_INV_IN4
13
INV_IN4
14
OUT4
R2844
10K
EU_OPT
R2857
220K
EU_OPT
+3.3V_Normal
L2803
120-ohm
R2863
5.6K
EU_OPT
R2858
220K
EU_OPT
R2825
470K
COMP2_Pr+
SC1_FB
C2820
330pF
EU_OPT
DTV/MNT_R_OUT
DTV/MNT_L_OUT
R2842
1K
R2837
10K
REAR_AV
R2861
2.2K
EU_OPT
C2815
0.1uF
50V
EU_OPT
C2811
1000pF
50V
OPT
R2862
5.6K
EU_OPT
C2806
330pF
50V
AV_CVBS_DET
R2812
10K
L2801
BLM18PG121SN1D
EU_OPT
R2838
1K
REAR_AV
R2841
10K
SC1_G+/COMP1_Y+
IC2800
AS324MTR-E1
EU_OPT_BCD
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
GND
12
IN4+
13
IN4-
14
OUT4
C2807
4700pF
EU_OPT
SCART1_Rout
C2824
33pF
EU_OPT
R2802
75
R2864
470K
OPT
R2830
15K
EU_OPT
L2802
120-ohm
SC1_SOG_IN
C2817
0.1uF
50V
EU_OPT
R2813
10K
SC1/COMP1_DET
C2823
33pF
EU_OPT
R2823
75
R2814
15K
EU_OPT
C2805
330pF
50V
R2868
10K
EU_OPT
JK2803
PPJ234-02
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
4C
[RD]CONTACT_1
5D
[WH]O-SPRING
4E
[RD]CONTACT_2
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
C2800
47pF
50V
EU_OPT
R2806
75
R2803
75
DTV/MNT_L_OUT
DTV/MNT_R_OUT
SCART1_Lout
C2801
0.1uF
16V
SC1_B+/COMP1_Pb+
SC1_R+/COMP1_Pr+
DTV/MNT_VOUT
R2832
10K
SC1_CVBS_IN
+3.3V_Normal
R2839
2K
EU_OPT
R2866
33K
EU_OPT
C2803
1000pF
50V
EU_OPT
R2819
12K
COMP2_Y+/AV_CVBS_IN
R2829
47K
EU_OPT
R2824
75
R2822
75
R2840
2K
EU_OPT
R2804
470K
R2834
12K
R2826
470K
R2831
10K
JK2801
PSC008-01
EU_OPT
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
DTV/MNT_L_OUT
C2814
0.1uF
50V
EU_OPT
COMP2_Pb+
R2867
33K
EU_OPT
C2808
4700pF
EU_OPT
R2828
470
EU_OPT
R2811
75
EU_OPT
COMP2_R_IN
R2818
12K
DTV/MNT_R_OUT
+12V/+15V
R2807
75
EU_OPT
C2816
0.1uF
EU_OPT
R2815
22
EU_OPT
L2800
BLM18PG121SN1D
EU_OPT
+3.5V_ST
C2813
0.1uF
16V
REAR_AV
R2817
3.9K
EU_OPT
SC1/COMP1_R_IN
R2816
75
EU_OPT
0
R2809
EU_OPT
R2800
0
COMPONENT1
COMP2_L_IN
R2860
2.2K
EU_OPT
SC1_ID
R2865
470K
OPT
+3.3V_Normal
R2833
12K
JK2800
PPJ-230-01
COMPONENT1
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
+12V/+15V
R2805
470K
R2827
180
EU_OPT
SCART1_MUTE
SC1/COMP1_L_IN
C2819
330pF
EU_OPT
C2810
1000pF
50V
OPT
C2804
1000pF
50V
EU_OPT
COMP2_DET
R2808
10K
L2804
EU_OPT
R2810
1K
C2822
10uF
16V
EU_OPT
C2821
10uF
16V
EU_OPT
L2805
CM2012FR10KT 
COMP2_ADC_FILTER_L
L2806
CM2012FR10KT 
COMP2_ADC_FILTER_L
L2807
CM2012FR10KT 
COMP2_ADC_FILTER_L
C2825
47pF
50V
COMP2_ADC_FILTER
C2826
47pF
50V
COMP2_ADC_FILTER
C2827
47pF
50V
COMP2_ADC_FILTER
C2828
47pF
50V
COMP2_ADC_FILTER
C2829
47pF
50V
COMP2_ADC_FILTER
C2830
47pF
50V
COMP2_ADC_FILTER
L2805-*1
0
COMP2_NON_ADC_FILTER
L2806-*1
0
COMP2_NON_ADC_FILTER
L2807-*1
0
COMP2_NON_ADC_FILTER
L2808
CM2012FR10KT 
COMP1/SCART_ADC_FILTER_L
L2809
CM2012FR10KT 
COMP1/SCART_ADC_FILTER_L
L2810
CM2012FR10KT 
COMP1/SCART_ADC_FILTER_L
C2831
47pF
50V
COMP1/SCART_ADC_FILTER
C2832
47pF
50V
COMP1/SCART_ADC_FILTER
C2833
47pF
50V
COMP1/SCART_ADC_FILTER
C2834
47pF
50V
COMP1/SCART_ADC_FILTER
C2835
47pF
50V
COMP1/SCART_ADC_FILTER
C2836
47pF
50V
COMP1/SCART_ADC_FILTER
L2808-*1
0
COMP1/SCSRT_NON_ADC_FILTER
L2809-*1
0
COMP1/SCSRT_NON_ADC_FILTER
L2810-*1
0
COMP1/SCSRT_NON_ADC_FILTER
C2802
220pF
50V
OPT
C2812
47uF
25V
EU_OPT
C2809
100uF
16V
EU_OPT
Q2800
MMBT3906(NXP) 
EU_OPT
E
B
C
Q2801
MMBT3904(NXP)
EU_OPT
E
B
C
MMBT3904(NXP)
Q2802
EU_OPT
MMBT3904(NXP)
Q2803
EU_OPT
Q2804
MMBT3906(NXP) 
EU_OPT
1
2
3
D2813
20V
OPT
D2803
20V
D2804
20V
D2801
20V
OPT
D2814
20V
OPT
D2811
20V
EU_OPT
D2809
20V
OPT
D2802
20V
EU_OPT
D2812
20V
OPT
D2805
20V
D2817
5.6V
OPT
D2818
5.6V
OPT
D2800
5.6V
OPT
D2807
5.6V
OPT
D2808
5.6V
NON_EU
5.6V
OPT
D2816
D2806
5.6V
NON_EU
D2815
5.6V
OPT
D2810
5.6V
OPT
CLOSE TO MSTAR
Gain=1+Rf/Rg
Rg
COMPONENT2
IN CASE OF SMALL= 15V
Rf
[SCART AUDIO MUTE]
FULL SCART / COMPONENT1
SCART / COMPONENT&COMPSIT
TH
ER
MA
L
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.
2011/11/16
AMP_STA380BWE
34
GP4L_S7LR2
SPK_R-
+3.3V_AMP
R3402
100
NON_LIPS
C3421
0.22uF
50V
+3.3V_AMP
C3420
0.22uF
50V
C3405
33pF
50V
OPT
R3408
43
C3406
33pF
50V
OPT
R3411
0
LIPS
AMP_SCL
C3409
0.1uF
16V
R3407
43
L3402
10.0uH
SPK_R+
+3.3V_Normal
AMP_RESET
L3403
10.0uH
C3401
1000pF
50V
C3404
2.2uF
10V
C3418
0.22uF
50V
R3404
0
AMP_SDA
P3400
WAFER-ANGLE
1
2
3
4
SPK_L-
SPK_R+
C3408
0.1uF
16V
SPK_L+
AUD_LRCH
R3401
10K
NON_LIPS
SPK_R-
L3401
BLM18PG121SN1D
C3402
0.1uF
50V
R3403
0
L3405
10.0uH
R3400
10K
NON_LIPS
SPK_L+
C3423
0.22uF
50V
+24V_AMP
AUD_MASTER_CLK
AUD_LRCK
SPK_L-
C3403
0.1uF
16V
C3407
0.1uF
16V
AUD_SCK
C3417
10uF
35V
C3400
0.1uF
50V
C3411
0.1uF
50V
R3410
43
C3422
0.22uF
50V
+24V
C3416
0.1uF
50V
+3.3V_AMP
C3419
0.22uF
50V
L3404
10.0uH
+3.5V_ST
Q3400
MMBT3904(NXP)
NON_LIPS
E
B
C
R3409
43
AMP_MUTE
+24V_AMP
C3413
330pF
50V
C3414
330pF
50V
C3426
1000pF
50V
C3427
1000pF
50V
C3425
1000pF
50V
C3424
1000pF
50V
C3415
1uF
50V
C3412
1uF
50V
L3400
CIS21J121
IC3400
STA380BW
1
VCC_REG
2
VSS_REG
3
OUT2B
4
GND2
5
VCC2
6
OUT2A
7
OUT1B
8
VCC1
9
GND1
10
OUT1A
11
VDD_REG
12
GND_REG
13
NC_1
14
NC_2
15
NC_3
16
NC_4
17
NC_5
18
NC_6
19
NC_7
20
NC_8
21
NC_9
22
NC_10
23
NC_11
24
NC_12
25
NC_13
26
NC_14
27
NC_15
28
VDDDIG1
29
GNDDIG1
30
FFX3A
31
FFX3B
32
EAPD/FFX4A
33
TWARNEXT/FFX4B
34
VREGFILT
35
AGNDPLL
36
MCLK
37
BICKI
38
LRCKI
39
SDI
40
RESET
41
PWDN
42
INTLINE
43
SDA
44
SCL
45
SA
46
TESTMODE
47
GNDDIG2
48
VDDDIG2
49
[EP]
POWER_DET
R3412
10K
NON_LIPS
SPEAKER_L
AUDIO AMP(STA380BWE)
SPEAKER_R
Page of 56
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