DOWNLOAD LG 32LN540B-CN (CHASSIS:LD31B / LD36B) Service Manual ↓ Size: 40.01 MB | Pages: 87 in PDF or view online for FREE

Model
32LN540B-CN (CHASSIS:LD31B LD36B)
Pages
87
Size
40.01 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ln540b-cn-chassis-ld31b-ld36b.pdf
Date

LG 32LN540B-CN (CHASSIS:LD31B / LD36B) 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.
LVDS_EU
2012/06/22
57
NC4_S7LRM
R1100
3.3K
OPT
RXB0-
RXA0+
C1101
0.1uF
16V
HD
C1100
0.1uF
16V
FHD
RXBCK-
P1101
FF10001-30
HD
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
RXA1-
RXB4-
+3.3V_Normal
RXB1+
RXBCK+
PANEL_VCC
RXB3+
RXA3-
RXB4+
RXA4-
RXA4+
RXA2+
+3.3V_Normal
RXB2-
R1101
10K
OPT
RXA1+
RXA2-
RXB1-
R1103
3.3K
OPT
RXA3+
RXA0-
PANEL_VCC
RXACK-
RXB2+
R1104
10K
OPT
RXB3-
RXB0+
P1100
FI-RE51S-HF-J-R1500 
FHD
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
RXACK+
RXA2+
RXA2-
RXA3+
RXACK+
RXA1+
RXA3-
RXA0+
RXA1-
RXACK-
RXA0-
L1100
CIS21J121
120
FHD
L1101
CIS21J121
120
HD
R1105
0
NON_AUO/NON_HD
R1106
0
NON_AUO/NON_HD
R1107
0
NON_AUO/NON_HD
RXB1-
RXB0-
RXA4+
RXA1-
Pol-change
RXB4+
RXACK+
RXBCK-
RXA0+
RXA2+
LVDS (EU)
RXA2+
RXBCK-
RXB4-
RXA3+
RXA1+
RXB2+
RXB3-
RXA3-
RXBCK-
RXACK-
RXA2+
RXA1-
RXB1-
RXB3-
RXA3+
RXA2-
RXA0+
RXA4+
Shift
RXBCK+
RXB2-
RXA4+
[51Pin LVDS Connector]
 (For FHD 60Hz)
RXACK+
RXA3-
RXACK-
RXB3+
RXA3+
RXA1-
RXB0-
RXA0-
RXACK+
RXB3+
LVDS_SEL
RXA4-
RXB3+
RXA4+
RXA2-
RXA2+
RXA1+
RXB2-
Pol-change
RXB4+
RXB1-
RXA4-
RXACK+
RXB3-
RXB0+
RXB3+
RXBCK+
RXB4-
RXA0+
RXA2+
RXB0+
RXB1+
RXA3-
RXA2-
RXBCK+
RXB4-
RXA0+
RXA4+
RXA2+
RXB3-
RXA0-
RXB0-
RXA4-
RXACK-
RXB0-
RXA4+
RXB2+
RXA1-
RXB2+
RXACK-
RXA3-
RXA1+
RXA3-
RXA1+
RXB3+
RXB3-
RXA3-
RXB1-
RXB4+
FOR FHD REVERSE(10bit)
RXB0+
RXB3-
RXA3+
RXA0+
RXA2-
RXACK-
RXB1-
RXA3+
RXB2-
RXBCK-
RXBCK+
RXA1+
RXA0-
RXA3+
RXA0-
RXB2+
RXB0-
RXA0-
RXB2-
RXACK-
MIRROR
RXB4-
RXA0-
RXB2+
RXA4+
RXB4-
RXA1+
RXB3+
RXB0+
RXB1+
RXA1-
RXA0-
RXA4-
RXB2-
Change in S7LR
RXA4-
RXB2+
MIRROR
RXB1-
RXA3+
RXA1-
RXACK+
RXB3+
RXB0+
RXB4-
RXACK+
RXB1+
RXACK-
RXA4-
RXA1-
RXA2-
RXA0+
RXB0-
RXB1+
RXB4+
RXB2+
RXBCK-
RXB0-
FOR FHD REVERSE(8bit)
RXBCK-
RXBCK+
RXB4+
RXB0+
RXB2-
RXA1+
RXBCK-
RXA2-
RXB1+
RXB1+
RXB1-
RXA4-
RXB4+
[30Pin LVDS Connector]
 (For HD 60Hz_Normal)
Change in S7LR
RXB1+
RXB3-
RXA2+
RXA3-
RXA2-
RXB2-
LVDS_SEL
RXBCK+
RXB4-
RXB0+
RXA0+
RXB4+
RXBCK+
RXACK+
EU pin assign is different from NON EU.
Because of position of HD wafer.
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_BASIC
2012/11/11
65
NC4_S7LRM
JK2801
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
C2817
0.1uF
50V
EU
R2804
470K
R2813
10K
EU
D2804
5.6V
OPT
R2831
10K
SC1_G+/COMP1_Y+
SC1/COMP1_L_IN
COMP2_DET
R2805
470K
SCART1_Rout
R2817
3.9K
EU
R2857
220K
EU
+3.3V_Normal
R2819
12K
EU
IC2801
AZ4580MTR-E1 
EU
3
IN1+
2
IN1-
4
VEE
1
OUT1
5
IN2+
6
IN2-
7
OUT2
8
VCC
R2808
10K
EU
R2868
10K
EU
C2823
33pF
EU
R2864
470K
OPT
R2814
15K
EU
R2869
10K
EU
COMP2_Pr+
SCART1_MUTE
SC1_ID
COMP2_Pb+
D2814
20V
ESD_SCART
R2812
10K
EU
SC1_FB
R2815
22
EU
DTV/MNT_L_OUT
D2808
5.6V
OPT
R2833
12K
+3.5V_ST
R2803
75
R2807
75
EU
COMP2_R_IN
R2825
470K
R2862
5.6K
EU
D2811
20V
ESD_SCART
R2858
220K
EU
R2810
1K
EU
D2815
5.6V
ESD_SCART
COMP2_L_IN
DTV/MNT_L_OUT
R2832
10K
R2816
75
EU
R2861
2.2K
EU
R2818
12K
EU
D2810
20V
OPT
DTV/MNT_R_OUT
D2817
5.6V
ESD_SCART
R2842
1K
SCART1_Lout
R2837
10K
D2819
5.6V
OPT
R2811
75
EU
R2802
75
D2812
20V
ESD_SCART
+12V
R2822
75
C2820
330pF
EU
D2816
20V
ESD_SCART
SC1_R+/COMP1_Pr+
D2818
5.6V
OPT
R2867
33K
EU
R2860
2.2K
EU
R2823
75
R2863
5.6K
EU
DTV/MNT_L_OUT
C2819
330pF
EU
SC1/COMP1_R_IN
+3.3V_Normal
+3.3V_Normal
AV_CVBS_DET
R2866
33K
EU
R2826
470K
R2834
12K
R2806
75
DTV/MNT_R_OUT
C2821
10uF
16V
EU
R2865
470K
OPT
D2813
20V
ESD_SCART
R2824
75
C2822
10uF
16V
EU
DTV/MNT_R_OUT
R2841
10K
SC1/COMP1_DET
R2838
1K
C2824
33pF
EU
SC1_B+/COMP1_Pb+
COMP2_Y+/AV_CVBS_IN
4.7uF
C2810
EU
C2811
0.1uF
EU
DTV/MNT_VOUT
C2809
0.1uF
EU
+3.3V_Normal
C2802
0.1uF
16V
OPT
SC1_SOG_IN
C2801
47pF
50V
OPT
SC1_CVBS_IN
0
R2801
EU
D2806
5.6V
OPT
D2807
5.6V
OPT
D2802
5.6V
OPT
JK2802
PPJ245-02 
6A
[RD1]C-SPRING
7A
[RD1]E-LUG
4A
[RD1]CONTACT
5B
[WH]C-SPRING
8C
[RD2]E-LUG-S
6C
[RD2]C-SPRING
4C
[RD2]CONTACT
5D
[BL]C-SPRING
4E
[GN]CONTACT
6E
[GN]C-SPRING
7E
[GN]E-LUG
C2816
0.1uF
SCART_MUTE
R2840
2K
SCART_MUTE
R2839
2K
SCART_MUTE
R2844
10K
SCART_MUTE
Q2804
MMBT3906(NXP) 
SCART_MUTE
1
2
3
MMBT3904(NXP)
Q2803
SCART_MUTE
MMBT3904(NXP)
Q2802
SCART_MUTE
IC2802
MM1756DURE
EU
3
BIAS
2
GND
4
OUT
1
IN
6
VCC
5
PS
D2827
ESD_SCART_ZENER_ROHM
D2826
ESD_SCART_ZENER_ROHM
D2826-*1
ESD_SCART_ZENER_KEC
D2827-*1
ESD_SCART_ZENER_KEC
D2822
5.5V
ESD_COMP
D2824
5.5V
ESD_COMP
D2821-*1
ESD_COMP_ZENER_KEC
D2823-*1
ESD_COMP_ZENER_KEC
D2823
ESD_COMP_ZENER_ROHM
D2821
ESD_COMP_ZENER_ROHM
SCART / COMPONENT&COMPSIT
CLOSE TO MSTAR
SCART AMP
[SCART AUDIO MUTE]
COMPONENT
FULL SCART
CLOSE TO MSTAR
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_BASIC
2012/11/11
65
NC4_S7LRM
JK2801
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
C2817
0.1uF
50V
EU
R2804
470K
R2813
10K
EU
D2804
5.6V
OPT
R2831
10K
SC1_G+/COMP1_Y+
SC1/COMP1_L_IN
COMP2_DET
R2805
470K
SCART1_Rout
R2817
3.9K
EU
R2857
220K
EU
+3.3V_Normal
R2819
12K
EU
IC2801
AZ4580MTR-E1 
EU
3
IN1+
2
IN1-
4
VEE
1
OUT1
5
IN2+
6
IN2-
7
OUT2
8
VCC
R2808
10K
EU
R2868
10K
EU
C2823
33pF
EU
R2864
470K
OPT
R2814
15K
EU
R2869
10K
EU
COMP2_Pr+
SCART1_MUTE
SC1_ID
COMP2_Pb+
D2814
20V
ESD_SCART
R2812
10K
EU
SC1_FB
R2815
22
EU
DTV/MNT_L_OUT
D2808
5.6V
OPT
R2833
12K
+3.5V_ST
R2803
75
R2807
75
EU
COMP2_R_IN
R2825
470K
R2862
5.6K
EU
D2811
20V
ESD_SCART
R2858
220K
EU
R2810
1K
EU
D2815
5.6V
ESD_SCART
COMP2_L_IN
DTV/MNT_L_OUT
R2832
10K
R2816
75
EU
R2861
2.2K
EU
R2818
12K
EU
D2810
20V
OPT
DTV/MNT_R_OUT
D2817
5.6V
ESD_SCART
R2842
1K
SCART1_Lout
R2837
10K
D2819
5.6V
OPT
R2811
75
EU
R2802
75
D2812
20V
ESD_SCART
+12V
R2822
75
C2820
330pF
EU
D2816
20V
ESD_SCART
SC1_R+/COMP1_Pr+
D2818
5.6V
OPT
R2867
33K
EU
R2860
2.2K
EU
R2823
75
R2863
5.6K
EU
DTV/MNT_L_OUT
C2819
330pF
EU
SC1/COMP1_R_IN
+3.3V_Normal
+3.3V_Normal
AV_CVBS_DET
R2866
33K
EU
R2826
470K
R2834
12K
R2806
75
DTV/MNT_R_OUT
C2821
10uF
16V
EU
R2865
470K
OPT
D2813
20V
ESD_SCART
R2824
75
C2822
10uF
16V
EU
DTV/MNT_R_OUT
R2841
10K
SC1/COMP1_DET
R2838
1K
C2824
33pF
EU
SC1_B+/COMP1_Pb+
COMP2_Y+/AV_CVBS_IN
4.7uF
C2810
EU
C2811
0.1uF
EU
DTV/MNT_VOUT
C2809
0.1uF
EU
+3.3V_Normal
C2802
0.1uF
16V
OPT
SC1_SOG_IN
C2801
47pF
50V
OPT
SC1_CVBS_IN
0
R2801
EU
D2806
5.6V
OPT
D2807
5.6V
OPT
D2802
5.6V
OPT
JK2802
PPJ245-02 
6A
[RD1]C-SPRING
7A
[RD1]E-LUG
4A
[RD1]CONTACT
5B
[WH]C-SPRING
8C
[RD2]E-LUG-S
6C
[RD2]C-SPRING
4C
[RD2]CONTACT
5D
[BL]C-SPRING
4E
[GN]CONTACT
6E
[GN]C-SPRING
7E
[GN]E-LUG
C2816
0.1uF
SCART_MUTE
R2840
2K
SCART_MUTE
R2839
2K
SCART_MUTE
R2844
10K
SCART_MUTE
Q2804
MMBT3906(NXP) 
SCART_MUTE
1
2
3
MMBT3904(NXP)
Q2803
SCART_MUTE
MMBT3904(NXP)
Q2802
SCART_MUTE
IC2802
MM1756DURE
EU
3
BIAS
2
GND
4
OUT
1
IN
6
VCC
5
PS
D2827
ESD_SCART_ZENER_ROHM
D2826
ESD_SCART_ZENER_ROHM
D2826-*1
ESD_SCART_ZENER_KEC
D2827-*1
ESD_SCART_ZENER_KEC
D2822
5.5V
ESD_COMP
D2824
5.5V
ESD_COMP
D2821-*1
ESD_COMP_ZENER_KEC
D2823-*1
ESD_COMP_ZENER_KEC
D2823
ESD_COMP_ZENER_ROHM
D2821
ESD_COMP_ZENER_ROHM
SCART / COMPONENT&COMPSIT
CLOSE TO MSTAR
SCART AMP
[SCART AUDIO MUTE]
COMPONENT
FULL SCART
CLOSE TO MSTAR
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_BASIC
2012/11/11
65
NC4_S7LRM
JK2801
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
C2817
0.1uF
50V
EU
R2804
470K
R2813
10K
EU
D2804
5.6V
OPT
R2831
10K
SC1_G+/COMP1_Y+
SC1/COMP1_L_IN
COMP2_DET
R2805
470K
SCART1_Rout
R2817
3.9K
EU
R2857
220K
EU
+3.3V_Normal
R2819
12K
EU
IC2801
AZ4580MTR-E1 
EU
3
IN1+
2
IN1-
4
VEE
1
OUT1
5
IN2+
6
IN2-
7
OUT2
8
VCC
R2808
10K
EU
R2868
10K
EU
C2823
33pF
EU
R2864
470K
OPT
R2814
15K
EU
R2869
10K
EU
COMP2_Pr+
SCART1_MUTE
SC1_ID
COMP2_Pb+
D2814
20V
ESD_SCART
R2812
10K
EU
SC1_FB
R2815
22
EU
DTV/MNT_L_OUT
D2808
5.6V
OPT
R2833
12K
+3.5V_ST
R2803
75
R2807
75
EU
COMP2_R_IN
R2825
470K
R2862
5.6K
EU
D2811
20V
ESD_SCART
R2858
220K
EU
R2810
1K
EU
D2815
5.6V
ESD_SCART
COMP2_L_IN
DTV/MNT_L_OUT
R2832
10K
R2816
75
EU
R2861
2.2K
EU
R2818
12K
EU
D2810
20V
OPT
DTV/MNT_R_OUT
D2817
5.6V
ESD_SCART
R2842
1K
SCART1_Lout
R2837
10K
D2819
5.6V
OPT
R2811
75
EU
R2802
75
D2812
20V
ESD_SCART
+12V
R2822
75
C2820
330pF
EU
D2816
20V
ESD_SCART
SC1_R+/COMP1_Pr+
D2818
5.6V
OPT
R2867
33K
EU
R2860
2.2K
EU
R2823
75
R2863
5.6K
EU
DTV/MNT_L_OUT
C2819
330pF
EU
SC1/COMP1_R_IN
+3.3V_Normal
+3.3V_Normal
AV_CVBS_DET
R2866
33K
EU
R2826
470K
R2834
12K
R2806
75
DTV/MNT_R_OUT
C2821
10uF
16V
EU
R2865
470K
OPT
D2813
20V
ESD_SCART
R2824
75
C2822
10uF
16V
EU
DTV/MNT_R_OUT
R2841
10K
SC1/COMP1_DET
R2838
1K
C2824
33pF
EU
SC1_B+/COMP1_Pb+
COMP2_Y+/AV_CVBS_IN
4.7uF
C2810
EU
C2811
0.1uF
EU
DTV/MNT_VOUT
C2809
0.1uF
EU
+3.3V_Normal
C2802
0.1uF
16V
OPT
SC1_SOG_IN
C2801
47pF
50V
OPT
SC1_CVBS_IN
0
R2801
EU
D2806
5.6V
OPT
D2807
5.6V
OPT
D2802
5.6V
OPT
JK2802
PPJ245-02 
6A
[RD1]C-SPRING
7A
[RD1]E-LUG
4A
[RD1]CONTACT
5B
[WH]C-SPRING
8C
[RD2]E-LUG-S
6C
[RD2]C-SPRING
4C
[RD2]CONTACT
5D
[BL]C-SPRING
4E
[GN]CONTACT
6E
[GN]C-SPRING
7E
[GN]E-LUG
C2816
0.1uF
SCART_MUTE
R2840
2K
SCART_MUTE
R2839
2K
SCART_MUTE
R2844
10K
SCART_MUTE
Q2804
MMBT3906(NXP) 
SCART_MUTE
1
2
3
MMBT3904(NXP)
Q2803
SCART_MUTE
MMBT3904(NXP)
Q2802
SCART_MUTE
IC2802
MM1756DURE
EU
3
BIAS
2
GND
4
OUT
1
IN
6
VCC
5
PS
D2827
ESD_SCART_ZENER_ROHM
D2826
ESD_SCART_ZENER_ROHM
D2826-*1
ESD_SCART_ZENER_KEC
D2827-*1
ESD_SCART_ZENER_KEC
D2822
5.5V
ESD_COMP
D2824
5.5V
ESD_COMP
D2821-*1
ESD_COMP_ZENER_KEC
D2823-*1
ESD_COMP_ZENER_KEC
D2823
ESD_COMP_ZENER_ROHM
D2821
ESD_COMP_ZENER_ROHM
SCART / COMPONENT&COMPSIT
CLOSE TO MSTAR
SCART AMP
[SCART AUDIO MUTE]
COMPONENT
FULL SCART
CLOSE TO MSTAR
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LG 32LN540B-CN (CHASSIS:LD31B / LD36B) Service Manual ▷ Download