LG OK75 User Manual

3-38
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
5. ADC (IC301) 6. USB (CN502)
Fig 6. USB D+/D-
(CN502 Pin1, 2, 7, 8)
Fig 5. ADC I2S
(IC301 Pin15, 16, 17)
22
20
21
23
24
20
22
21
C321
10uF
C322
10uF
C316
1nF
C315
1nF
C320
10uF
C319
10uF
C318
1nF
C317
1nF
DGND
AGND
AGND
IC301
20
GPIO2/IntB/DMCLK
1
VINL2/VIN1M
11
LDO
29
VINL3/VIN4P
3
VINL1/VIN1P
8
AVDD
6
VREF
28
VINR4/VIN3M
21
GPIO1/IntA/DMIN
27
VINL4/VIN4M
7
AGND
5
MicBias
24
MC/SCL
9
XO
22
MISO/GPIO0
10
XI
23
MOSI/SDA
4
VINR1/VIN2P
25
MS/AD
30
VINR3/VIN3P
2
VINR2/VIN2M
26
MD0
12
DGND
19
GPIO3/IntC
13
DVDD
14
IOVDD
17
BCK
18
DOUT
15
SCKI(3.3V)
16
LRCK
DVCC_3.3V
R322
5.6K
R323
5.6K
R318
33
R311
2.7K
R310
2.7K
R305
10K
R306
100
R307
100
R313
33
R312
33
R308
33
R309
33
TP301
TP311
TP302
TP313
TP310
TP304
TP312
BT_ADC_SCL
DSPI_BCK
DSPI_LRCK
DSPI_MCLK
TUNER_L
TUNER_R
ADC_DIR_DAT
PT_L
PT_R
MIC_DATA_IN
ADC_DATA_IN
R332
100K
AGND
R333
100K
AGND
R334
100K
AGND
R335
100K
AGND
A
D
ADC
24
23
24
23
CN502
1
D2+
2
D2-
3
DGND
4
USB_5V
5
USB_5V
6
DGND
7
D1+
8
D1-
C536
100nF
C537
NC
C534
NC
DGND
DGND
ZD507
L513
UBW2012-121F
TP507
TP515
TP511
TP516
TP512
TP513
USB_5V
2.0_D1-
2.0_D1+
1.1_D+
1.1_D-
R504
4.7
R501
4.7
Volume(USB)<-> Main

LG OK75 Specifications

General

Output Power	1000W
Bluetooth	Yes
Karaoke Creator	Yes
DJ Effects	Yes
USB Playback	Yes
Multi Jukebox	Yes
Party Accelerator	Yes
Type	Mini Hi-Fi System
Audio Playback	MP3, WMA
FM Radio	Yes
CD Player	Yes
Brand	LG
Model	OK75
Category	Stereo System
Disc Formats	CD, CD-R, CD-RW
Radio	FM
Audio Inputs	USB
Speaker Configuration	2.0 Channel