LG 55LH80YD-AB Service Manual page 33

IC401
AZ1117H-1.8TRE1(EH13A)
+3.3V
INPUT ADJ/GND
3 1
2
OUTPUT
C446
C447
22uF
16V 0.1uF
16V
+24V +24V_AMP
L402
MLB-201209-0120P-N2
9:AC24
9:V26
+1.8V_AMP
+1.8V_AMP
L400
C400
10uF
16V
Mstar Application
9:V26
9:V26
9:V26
9:G13;9:J3;9:AC31;9:BB7
9:G13;9:J4;9:AC31;9:BB7
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.
AUDIO
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+1.8V_AMP
GND
C448 C449
0.1uF
22uF
16V 16V
+24V_AMP
C414
+3.3V
22000pF
50V
L403
MLB-201209-0120P-N2
R401
100
AMP_RST
C406
1000pF
50V R403
0
BST1A
1
AUDIO_M_CLK C411
VDR1A
2
1uF 10V
RESET
3
AD
4
IC400
DVSS_1
5
C408
VSS_IO
0.1uF
6
CLK_I
7
L401
NTP-3100L
C407 VDD_IO
8
C404 1000pF
50V DGND_PLL
9
100pF
R402 AGND_PLL
50V 10
3.3K LFM
11
AVDD_PLL
12
DVDD_PLL
13
EAN60664001
TEST0
14
C401
C402 C405
0.1uF
10uF 0.1uF
16V 16V 16V
+1.8V_AMP
C410
10uF C413
10V 0.1uF
16V
R404 100
MS_LRCH
R405 100
MS_LRCK
R406 100
MS_SCK
R407 100
SUB_SDA
R408 100
SUB_SCL
C409 C412
33pF 33pF
50V 50V
MCLK SDATA WCK BCK TP is necessory
Monitor0_1_2 TP is necessory
KIM JONG HYUN
D400
1N4148W R411
100V
5.6
R409
OPT
3.3 C431
1000pF
50V
C415 C416 C403 C426
0.01uF C420 C432
68uF
50V 0.1uF 0.01uF 1000pF
0.1uF
35V D401 50V
50V
50V
1N4148W
R412
100V
OPT 5.6
C419
22000pF
50V
C421
1uF
16V
NC C423
42
16V 1uF
VDR2A C425
41
22000pF
BST2A
40 D402
R413
50V
PGND2A_2 1N4148W
39
5.6
100V
PGND2A_1
38
OPT
OUT2A_2 C433
37
1000pF
OUT2A_1 50V
36
PVDD2A_2
35
C434
34 PVDD2A_1
1000pF
D403 50V
PVDD2B_2
33
1N4148W
PVDD2B_1 100V R414
32
OPT
OUT2B_2 5.6
31
OUT2B_1
30
PGND2B_2
29
+24V_AMP
R415
3.3
C427
C428 C430 C429 C435
68uF 0.01uF
0.01uF 0.1uF 0.1uF
50V 35V 50V
50V 50V
C418
1uF
10V C424
22000pF
50V
+3.3V_ST
R424
R426
10K
0
D404
ENKMC2838-T112
C
A1
NTP_MUTE
C417
B C
Q400
33pF
2SC3052 R425 A2
50V
AUDIO_MUTE
10K
OPT
E
C442
L404 0.01uF
50V
DA-8580
R416
EAP38319001 C438
R420
0.1uF
4.7K
2S 2F 50V
3.3
C436
0.47uF
50V
R421
1S 1F
C439 3.3
0.1uF R417
50V C443
4.7K 0.01uF
50V
L405
C444
DA-8580
0.01uF
EAP38319001 C437 C440 R418
0.47uF 50V
2S 2F
50V 0.1uF 4.7K R422
50V
3.3
1S 1F
R423
3.3
C441 R419
C445
0.1uF 4.7K
0.01uF
50V
50V
9:AC23
12:X25
SPK_L+
AK11
SPEAKER_L
SPK_L- AK10
SPK_R+
AK10
SPEAKER_R
AK9
SPK_R-
WAFER-ANGLE
L406
120-ohm
AF20 SPK_L+
4
L407
120-ohm
SPK_L-
AF18
3
L408
120-ohm
SPK_R+
AF16
2
L409
120-ohm
AF14 SPK_R-
1
P400
JUNO
09.02.04
Audio 3
LGE Internal Use Only
12