Audio - LG 22LK230 Service Manual

AUDIO

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