LG 32LN52 Series - Troubleshooting; Remote Control Issues; Display and Sound Problems; Sudden Power Off Issues

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_OS_ERRC_LN52
2013/03/07
66
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
SC1_G+/COMP1_Y+
SC1/COMP1_L_IN
R2805
470K
SCART1_Rout
R2817
3.9K
EU
R2857
220K
EU
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
SCART1_MUTE
SC1_ID
D2814
20V
ESD_SCART
R2812
10K
EU
SC1_FB
R2815
22
EU
DTV/MNT_L_OUT
D2808
5.6V
ESD_SCART
+3.5V_ST
R2803
75
R2807
75
EU
R2862
5.6K
EU
D2811
20V
ESD_SCART
R2858
220K
EU
R2810
1K
EU
D2815
5.6V
ESD_SCART
DTV/MNT_L_OUT
R2816
75
EU
R2861
2.2K
EU
R2818
12K
EU
D2810
20V
ESD_SCART
DTV/MNT_R_OUT
D2817
5.6V
ESD_SCART
SCART1_Lout
D2819
5.6V
ESD_SCART
R2811
75
EU
R2802
75
D2812
20V
ESD_SCART
+12V
C2820
330pF
EU
D2816
20V
ESD_SCART
SC1_R+/COMP1_Pr+
D2818
5.6V
ESD_SCART
R2867
33K
EU
R2860
2.2K
EU
R2863
5.6K
EU
DTV/MNT_L_OUT
C2819
330pF
EU
SC1/COMP1_R_IN
+3.3V_Normal
AV_CVBS_DET
R2866
33K
EU
R2806
75
DTV/MNT_R_OUT
C2821
10uF
16V
EU
R2865
470K
OPT
D2813
20V
ESD_SCART
C2822
10uF
16V
EU
DTV/MNT_R_OUT
SC1/COMP1_DET
C2824
33pF
EU
SC1_B+/COMP1_Pb+
4.7uF
C2810
EU
C2811
0.1uF
EU
DTV/MNT_VOUT
C2809
0.1uF
EU
+3.3V_Normal
SC1_SOG_IN
C2801
47pF
50V
EU
SC1_CVBS_IN
0
R2801
EU
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
C2825
1000pF
50V
OPT
C2826
1000pF
50V
OPT
D2826
ZENER
ESD_SCART
D2827
ZENER
ESD_SCART
FULL SCART
CLOSE TO MSTAR
SCART AMP
[SCART AUDIO MUTE]
FULL SCART
CLOSE TO MSTAR
COMPONENT & AV NOT USE TP(LN52)
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Only for training and service purposes
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