LG 43LF510A Service Manual page 18

EAX66453201
LB56H/LT56H
+19V +19V_AMP
L306
C340
0.1uF
50V
I2S_SDO
I2S_WS
I2S_SCK
AUAMP/VCOM_SDA
R303 100
AUAMP/VCOM_SDA
AUAMP/VCOM_SCL
R302 100
AUAMP/VCOM_SCL
R300 R301
4.7K 4.7K
+3.3V_M
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
AUDIO
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SW_RESET
C307
1000pF
50V
I2S_MCLK
R308 100
L300
+3.3V_M
C305
BLM18PG121SN1D
C306
10uF
0.1uF
6.3V
16V
NC_1
1
VDD_PLL
2
THERMAL
NC_2
C304 3
41
0.1uF
16V
GND
4
OPT
C301
NC_3
C303 5 IC300
0.1uF
1uF
16V
10V
DVDD
6 NTP7514
SDATA
7
R306 100
0x54
WCK
8
R304 100
BCK
9
R305 100
SDA
10
C300 C302
33pF 33pF
50V 50V
C308
22000pF
50V
READY
R307
POWER_DET
100
+19V_AMP
C310 C312
0.1uF 10uF
50V 25V
R312 R316
12 12
C320
390pF
50V
C319
390pF
50V
R315
R311
OUT1B 12
12
30
PGND1B
29
C315
22000pF
BST1B
28 50V
VDR1
27
NC_4
26
AGND
25
VDR2
24
C316 C321
BST2A
23 1uF 1uF
10V 10V
PGND2A
22
C314
22000pF
OUT2A 50V
21
+19V_AMP
R314
R310
12
12
C318
390pF
50V
C311 C313
0.1uF 10uF C317
50V 25V 390pF
50V
R309 R313
12 12
MNT_LOUT
MNT_ROUT
L304
R330
10uH C333
0.1uF
4.7K
50V
C327
SPEAKER_L
0.47uF
50V
L303 C332
0.1uF R329
10uH
50V
4.7K
SPK_R+
C331
L301
R328
0.1uF
10uH
4.7K
50V
C326
0.47uF
SPEAKER_R
50V
L302
C330 R327
10uH
0.1uF 4.7K
50V
SPK_R-
AUDIO_OUT AMP : GAIN X 4
+12V
C323
0.1uF
Q301
25V
MMBT3904(NXP)
C R320 1K
B
E
C325 R324 10K
6800pF
50V
R318
4.7K C329 33pF 50V
R326
6.8K
R323 5.6K
MNT_L_AMP
+12V
C334
0.1uF
25V
R322 5.6K
MNT_R_AMP
C328 33pF 50V
+12V
R321 10K
R325
C322
6.8K
0.1uF
25V
Q300
MMBT3904(NXP)
C R319 1K
B
E
C324
R317
6800pF
4.7K
50V
155_ECI_M8RR
AUDIO
SPK_L+
SPK_L-
JP302
SPK_L+
SPK_L+
4
JP303
SPK_L-
SPK_L-
3
JP300
SPK_R+
SPK_R+
2
JP301
SPK_R-
SPK_R-
1
.
250A1-WR-H04M
P300
IC301
AS324MTR-E1
1 OUT1 OUT4 14
2 INPUT1- INPUT4- 13
3 INPUT1+ INPUT4+ 12
4 VCC GND 11
5 INPUT2+ INPUT3+ 10
6 INPUT2- INPUT3- 9
7 OUT2 OUT3 8
2015/03/03
3 8
LGE Internal Use Only