Read LG 22LN4500 (CHASSIS:LD31A) Service Manual 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.
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.
AUDIO AMP
7 12
R700
3.3
3.3
OPT
R709
100
TP700
C711
22000pF
50V
HP_DET
R717
12
L709
LPH6045T-100M
Audio_Coil_ABCO
10uH
C708
33pF
50V
33pF
50V
C726
1uF
25V
1uF
25V
D709
MMBD6100
LN4500
A2
C
A1
C734
0.47uF
50V
+19V_AMP_VCC
HP_LOUT
C743
1uF
25V
25V
C701
0.1uF
16V
0.1uF
16V
OPT
Q704
MMBT3904(NXP)
MMBT3904(NXP)
LN4500
E
B
C
C717
1000pF
50V
OPT
Q702
MMBT3906(NXP)
E
B
C
C730
390pF
50V
C735
0.47uF
50V
R735
220K
220K
OPT
AMP_RST
C728
390pF
50V
R711
1K
LN4500
R703
100
D710
KDS226
A
AC
C
TP701
0.1uF
C713
50V
R710
1K
1K
LN4500
Q701
MMBT3904(NXP)
LN4500
E
B
C
C745
47uF
25V
25V
R719
12
0.1uF
C739
50V
D700
MMBD6100
A2
C
A1
D704
100V
1N4148W
OPT
C705
33pF
50V
33pF
50V
AMP_SCL
Q705
MMBT3904(NXP)
MMBT3904(NXP)
LN4500
E
B
C
C720
10uF
10uF
10V
LN4500
C716
10uF
25V
C703
0.01uF
50V
0.01uF
50V
OPT
R714
3.3K
3.3K
LN4500
R728
5.1K
D706
100V
1N4148W
OPT
R737
12K
0.1uF
C737
50V
SB_MUTE
C742
4.7uF
50V
4.7uF
50V
L706
LPH6045T-100M
Audio_Coil_ABCO
10uH
C706
1000pF
50V
R708
33K
33K
OPT
JP701
C729
390pF
50V
JP702
C744
47uF
25V
C702
10uF
10V
10uF
10V
R712
12
NTP_MUTE
JP704
Q700
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
AUD_SCK
HP_MUTE
R716
0
SB_MUTE
C709
1000pF
50V
1000pF
50V
P700
SMAW250-H04R
WAFER-ANGLE
1
2
3
4
JP700
SB_MUTE
0.1uF
C738
50V
R730
5.1K
+19V_AMP_VCC
R718
12
L700-*1
NRS6045T100MMGK
(OPT)Audio_Coil_TAIYO
10.0uH
AUD_LRCH
AUD_LRCK
C721
10uF
10V
LN4500
R733
10K
LN4500
R727
5.1K
Q706
MMBT3906(NXP)
LN4500
E
B
C
JP706
IC700
NTP7513
3
DGND_PLL
2
VDD_PLL
4
GND
1
AGND_PLL
6
DVDD
5
DGND
7
SDATA
8
WCK
9
BCK
10
SDA
11
SCL
12
FAULT
13
MONITOR_0
14
MONITOR_1
15
MONITOR_2
16
BST2B
17
PGND2B
18
OUT2B
19
PVDD2B
20
PVDD2A
21
OUT2A
22
PGND2A
23
BST2A
24
VDR2
25
AGND
26
VCC5
27
VDR1
28
BST1B
29
PGND1B
30
OUT1B
31
PVDD1B
32
PVDD1A
33
OUT1A
34
PGND1A
35
BST1A
36
RESET
37
AD
38
CLK_I
39
GND_IO
40
VDD_IO
41
[EP]GND
R738
12K
12K
AUD_MASTER_CLK
+3.3V_AMP
C723
22000pF
50V
22000pF
50V
L701
LPH6045T-100M
Audio_Coil_ABCO
10uH
L709-*1
NRS6045T100MMGK
(OPT)Audio_Coil_TAIYO
10.0uH
C700
0.1uF
16V
0.1uF
C712
50V
R704
12
C724
47uF
25V
25V
R701
10K
+3.3V_ST
R707
100
AMP_SDA
D707
100V
1N4148W
OPT
R736
470
0.1uF
C714
50V
0.1uF
C715
50V
R702
12
0.1uF
C740
50V
R729
5.1K
R705
10K
R715
12
+3.3V_Normal
C719
1000pF
50V
OPT
VA702
20V
20V
LN4500
L701-*1
NRS6045T100MMGK
(OPT)Audio_Coil_TAIYO
10.0uH
R706
47K
LN4500
JP707
JK700
KJA-PH-1-0177-2
LN4500
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
0.1uF
C704
16V
OPT
R713
1K
LN4500
C731
390pF
50V
L706-*1
NRS6045T100MMGK
(OPT)Audio_Coil_TAIYO
10.0uH
L700
LPH6045T-100M
Audio_Coil_ABCO
10uH
R720
12
0.1uF
C707
16V
C718
10uF
25V
10uF
25V
C710
22000pF
50V
JP705
D705
100V
1N4148W
OPT
JP703
C727
1uF
25V
1uF
25V
Q707
MMBT3904(NXP)
LN4500
E
B
C
1uF
C725
10V
R734
220K
TP702
HP_ROUT
+3.3V_ST
C722
22000pF
22000pF
50V
Q703
MMBT3904(NXP)
LN4500
E
B
C
VA703
20V
OPT
VA701
20V
LN4500
+19V
R739
0
0
1/16W
5%
5%
LN4500
NC4_S7LRM
SPK_R-
SPK_L+
SPK_L-
MUTE control
12.08.09
SPK_R+
0x54
AUDIO AMP
Headphone block
Pop-up noise killer
11.10.27
Apply->OPT
2.7K->220K
11.10.27
12.08.20
12.08.20
12.11.07
1K->0 by JHShin
to solve pop-noise issue
1K->0 by JHShin
to solve pop-noise issue
12.08.16
Added by JCPark
Added by JCPark
121118
R737 3K for SCART MUTE DEL
R737 3K for SCART MUTE DEL
3K:
With SCART MUTE BLOCK
With SCART MUTE BLOCK
12K:
Without SCART MUTE BLOCK
Without SCART MUTE BLOCK
121118
OPTION added for LN4500
OPTION added for LN4500
EAX65077303
2013.1.14
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