LG 26LD350 Service Manual page 39

+1.8V_AMP
+3.3V_Normal
IC404
AP1117E18G-13
IN ADJ/GND
Vd=1.4V
3 1
2
OUT
C434 C421 C446
0.1uF 0.1uF
10uF
16V 10V 16V
AMP_RESET_N
AUD_MASTER_CLK
+1.8V_AMP
+1.8V_AMP
L502
L501
OPT
C501 C502 OPT
10uF 0.1uF C503
10V 10uF
16V
10V
R503
AUD_LRCH
R504
AUD_LRCK
R505
AUD_SCK
R506
AMP_SDA
R507
AMP_SCL
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 © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
120 mA
+24V
C515 C519
0.1uF 0.1uF
50V
+3.3V_Normal 50V
C514
22000pF
C518
50V
22000pF
L504
50V
C520
1uF
25V
C506
1000pF
50V
BST1A 42
1
C512
VDR1A THERMAL
2 41
1uF 25V
57
/RESET 40
3
AD
C509 4 39
0.1uF
DGND_1 38
5
GND_IO
6 IC501 37
CLK_I 36
7
C508 VDD_IO
8 35
C504 1000pF
EAN60969601
50V DGND_PLL
34
9
100pF
R508 AGND_PLL
50V 10 33
3.3K LF
11 NTP-7000 32
AVDD_PLL
12 31
DVDD_PLL
13 30
GND
14 29
C505
0.1uF
16V
+1.8V_AMP
OPT
C511 C517
1uF
10uF C513
25V
0.1uF
10V
16V
100
100
100
C516
33
1000pF
33 50V
C507 C510 C546 C544 C545
18pF 18pF 22pF 22pF 22pF
50V 50V 50V 50V 50V
OPT OPT OPT
D501
1N4148W R519 R526
OPT 100V 12 12
R535
OPT 2S
3.3
C529
390pF
OPT 50V
C547
C521 1S
0.01uF
10uF
C530
50V
35V 390pF
D502 50V
1N4148W
R520 R524
100V 12 12
OPT
NC C522
25V 1uF
VDR2A C525
22000pF
BST2A
D503 R525
R521
50V
PGND2A_2 1N4148W 12
12
100V
PGND2A_1
OPT 2S
OUT2A_2 C531
390pF
OUT2A_1 50V
PVDD2A_2 1S
C532
PVDD2A_1
390pF
50V
PVDD2B_2 D504
1N4148W
PVDD2B_1 R522 R523
100V 12 12
OUT2B_2 OPT
OUT2B_1
+24V
PGND2B_2
C528
C526 C527
10uF
0.1uF 0.1uF 35V
50V 50V
C524
22000pF
50V
R513
0
POWER_DET
OPT
+3.5V_ST
R515
R514 100 10K
C
R517
B
Q501
AMP_MUTE
2SC3052
10K
E
C540 OPT
0.01uF
L507
50V
AD-9060 R527
C536 OPT
R531
2F 0.1uF
4.7K
50V
3.3
C534
0.47uF
1F 50V OPT
R532
C537 3.3
0.1uF R528
15uH
50V C541 OPT
4.7K 0.01uF
50V
C542 OPT
L506
AD-9060 0.01uF
C538 R529
50V
2F
0.1uF 4.7K R533 OPT
C535
50V
3.3
0.47uF
50V
1F
OPT
R534
3.3
C539 R530
15uH
C543 OPT
0.01uF
0.1uF 4.7K
50V
50V
R536
0
SPK_L+
R537
0
SPK_L-
R538
0
SPK_R+
R539
0
SPK_R-
GP2_Saturn7M
AUDIO[NTP]
SPK_L+
SPEAKER_L
SPK_L-
SPK_R+
SPEAKER_R
SPK_R-
WAFER-ANGLE
4 4
3 3
2 2
1
1
P501
SPK_SLIM
SMAW250-04
P502
SPK_NORMAL
Ver. 1.1
38
LGE Internal Use Only