Audio Amp - LG 42LB55 series Service Manual

AUDIO AMP(TI)
+24V +24V_AMP
L5600
UBW2012-121F
C5601
0.1uF
50V
+3.5V_ST
R5601
10K
R5603
C 100
OPT
OPT
R5600
B
Q5600
AMP_MUTE
MMBT3904(NXP)
10K
E
OPT
R3405
0
POWER_DET
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 © 2014 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
This parts are Located
on AVSS area.
C5609 4700pF
C5608
R5609
470
0.047uF
+3.3V_Normal
AVDD
C5604 R5608 2K A_SEL_FAULT
0.1uF
MCLK
16V
18K
OSC_RES
1% DVSSO
R5607
VR_DIG
AUD_MASTER_CLK
LRCLK
C5602
SCLK
1000pF
C5607
50V 0.1uF SDIN
AUD_LRCK
AUD_SCK
AUD_LRCH
AMP_SDA
AMP_SCL
AMP_RESET
+3.3V_Normal
C5606
0.1uF
16V
+24V_AMP
OPT
C5640
C5620
C5618
10uF 4.7uF
0.1uF
50V 35V 50V
3216
[EP]
PGND_AB_2
13 48
PGND_AB_1
47
14
OUT_B
46
15
NC_6
16 45
50V
NC_5 0.033uF
44
17
C5624
BST_B
43
18
PDN BST_C
19 42
NC_4
41
20
50V
NC_3
40
21 0.033uF
OUT_C
22 39 C5625
SDA PGND_CD_2
38
23
SCL PGND_CD_1
37
24
+24V_AMP
C5614
0.1uF OPT
C5641
C5619 C5621
4.7uF
0.1uF 10uF
50V 35V 50V
3216
0.033uF
C5617
50V
C5610
0.1uF
16V
AMP_COIL_GET AMP_COIL_GET AMP_COIL_GET AMP_COIL_GET
L5603-*1 L5604-*1 L5605-*1 L5606-*1
10.0uH 10.0uH 10.0uH 10.0uH
AMP_COIL_TAIYO AMP_COIL_TAIYO AMP_COIL_TAIYO AMP_COIL_TAIYO
L5603-*2 L5604-*2 L5605-*2 L5606-*2
10.0uH 10.0uH 10.0uH 10.0uH
AMP_COIL_ABCO
L5605
10uH
R5611
18
C5626
330pF
C5632
50V
0.1uF
50V
C5630
0.47uF
50V
C5627
C5633
330pF
0.1uF
50V
50V
R5612
18
L5606
10uH
AMP_COIL_ABCO
AMP_COIL_ABCO
L5604
10uH
C5634
C5631
0.1uF
0.47uF
50V
50V
C5628
330pF
50V
C5635
0.1uF
50V
C5629
330pF
50V
L5603
10uH
AMP_COIL_ABCO
SPK_L+
SPK_L-
SPK_R+
SPK_R-
L14
AUDIO[TI]
Close to Speaker
SPK_L+
OPT
C5636
2200pF
50V
OPT
SPEAKER_L
C5637
2200pF
50V
SPK_L-
SPK_R+
SPEAKER_R
OPT
C5638
2200pF
50V
OPT
C5639
2200pF
50V
SPK_R-
WAFER-ANGLE
4
3
2
1
P5600
2013.10.06
56
LGE Internal Use Only