LG 22LK230, Service Manual

Page: 15 / 36

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.
R537
4.7K
C552
6800pF
50V
MNT_L_AMP
MNT_LOUT
16.5V_AOUT
R542
5.6K
16.5V_AOUT
MNT_ROUT
C556
33pF
50V
16.5V_AOUT
R546
6.8K
MNT_R_AMP
R538
1K
R547
6.8K
R539
1K
C553
33pF
50V
R543
5.6K
R536
4.7K
C555
6800pF
50V
C550
0.01uF
50V
C554
0.1uF
50V
C551
0.1uF
50V
R541
12K
R544
12K
C543
0.33uF
50V
C516
0.01uF
R507
33
C514
1000pF
50V
READY
C520
0.01uF
C525
0.01uF
R504
3.3
C501
1000pF
READY
10uF
C512
25V
READY
C504
10uF
10V
C540
0.33uF
50V
C547
0.047uF
I2S_SCK
C529
1uF
25V
R526 470
C549
4.7uF
10V
R524
22K
C548
0.047uF
R508 33
AUAMP_SDA
C546
4700pF
C545
4700pF
R516
1K
C521
0.01uF
R510 100
C535
0.033uF
50V
C508
10uF
10V
C522
0.01uF
C502
33pF
READY
C518
0.01uF
JP504
JP503
+3.3V_DVDD
C517
0.01uF
C503
33pF
READY
I2S_MCLK
R511 100
R512 100
SW_RESET
AUAMP_SCL
C539
0.33uF
50V
L501
MLB-201209-0120P-N2
120-ohm
IC501
TAS5709PHPR
1
OUT_A
2
PVDD_A_1
3
PVDD_A_2
4
BST_A
5
GVDD_OUT_1
6
SSTIMER
7
OC_ADJ
8
NC
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
TESTOUT
15
MCLK
16
OSC_RES
17
DVSS_1
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS_2
29
GND
30
AGND
31
VREG
32
GVDD_OUT_2
33
BST_D
34
PVDD_D_1
35
PVDD_D_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
PVDD_C_1
41
PVDD_C_2
42
BST_C
43
BST_B
44
PVDD_B_1
45
PVDD_B_2
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
C532
2200pF
C536
0.033uF
50V
C524
0.01uF
I2S_WS
10uF
C509
25V
JP502
R520
200
1%
C523
0.01uF
C544
0.33uF
50V
R523
22K
C526
0.1uF
C538
0.033uF
50V
R519
18K
1%
R506
3.3
R509 33
C527
0.1uF
R505
3.3
C537
0.033uF
50V
I2S_SDO
L504
MLB-201209-0120P-N2
120-ohm
R513 100
10uF
C510
25V
READY
+3.3V_DVDD
10uF
C511
25V
R525
470
JP501
C519
0.01uF
R503
3.3
C531
1uF
25V
3.3V_M
16.5V_SAMP
16.5V_SAMP
3.3V_M
IC502
SN324
3
2 INPUT1-
4 VCC
1 OUT1
6 INPUT2-
5
7 OUT2 8 OUT3
9 INPUT3-
10
11 GND
12
13 INPUT4-
14 OUT4
R514
4.7K R515
4.7K
3.3V_M
P501
SMAW250-H04R
1
.
2
3
4
C542
0.47uF
50V
C541
0.47uF
50V
Q503
MMBT3904(NXP)
E
B
C
Q502
MMBT3904(NXP)
E
B
C
R502
0
L506
AD-9060
15uH
2S
1S 1F
2F
L507
AD-9060
15uH
2S
1S 1F
2F
L508
MLB-201209-0120P-N2
120-ohm
L509
MLB-201209-0120P-N2
120-ohm
L510
MLB-201209-0120P-N2
120-ohm
L511
MLB-201209-0120P-N2
120-ohm
AUDIO
AMP:GAIN X 4
AUDIO
EAX64207701 2011/5/6
5 7
SPK_R-
This parts are Located
on AVSS area.
SPK_L+
SPK_L-
SPK_R+
Separate DGND AND AVSS
PULL DOWN
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only