LG SJ8S Service Manual

Copyright © 2017 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
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CIRCUIT VOLTAGE CHART
1. IC VOLTAGE
Designator Description Pin No Pin Name Voltage Spec Measured Voltage Temperature Spec.
IC100 MICOM
AVCC 1.8 V ~ 3.6 V 3.34 V
85 °C
DVCC 1.8 V ~ 3.6 V 3.33 V
IC102 SERIAL FLASH MEMORY 8 VCC 2.7 V ~ 3.6 V 3.34 V 85 °C
IC103 SERIAL FLASH MEMORY 8 VCC 2.7 V ~ 3.6 V 3.33 V 85 °C
IC200 DC,DC
2 VIN + 4.0 V ~ + 36 V 25.2 V
125 °C
3 VOUT 0.8 V ~ 33 V 12.08 V
IC301 DC,DC
4 VIN 2.7 V ~ 5.5 V 5.16 V
125 °C
3 SW 0.6 V ~ 5.225 V 3.37 V
IC304 Switch IC
5 VIN 2.5 V ~ 5.5 V 5.16 V
125 °C
1 VOUT 0 V ~ 5.5 V D_3.34V / PWM3.34V
IC306 Switch IC
5 VIN 4.5 V ~ 5.5 V 5.17 V
110 °C
1 VOUT 5.17 V (USB 5.16 V)
IC308 Switch IC
5 VIN 4.5 V ~ 5.5 V 5.17 V
110 °C
1 VOUT 5.14 V
IC309 Switch IC
5 VIN 2.5 V ~ 5.5 V 5.16 V
125 °C
1 VOUT 0 V ~ 5.5 V D_3.34V
IC311 DC,DC
4 VIN 2.7 V ~ 5.5 V 5.15 V
125 °C
3 SW 0.6 V ~ 5.225 V 1.205 V
IC501 IC,Video Processors
DVCC12_K 1.14 V ~ 1.26 V 1.21 V
95 °C
DVCC33_IO 3.15 V ~ 3.45 V 3.32 V
DDRVCCIO1 1.425 V ~ 1.575 V 1.51 V
AVDD33 3.15 V ~ 3.45 V 3.32 V
AVDD12 1.14V ~ 1.26 V 1.21 V
IC502 DDR3 SDRAM MEMORY
B2, D9, G7, K2, K8, N1, N9, R1,
R9
VDD 1.5 V (± 0.075 V) 1.51 V
95 °C
A1, A8, C1, C9, D2, E9, F1, H2, H9 VDDQ 1.5 V (± 0.075 V) 1.51 V
IC503 SERIAL FLASH MEMORY 8 VCC 2.7 V ~ 3.6 V 3.32 V 85 °C
IC600 IC,Sound/Audio Processor
17, 52 VDD_IO 2.97 V ~ 3.63 V 3.33 V
85 °C
6, 25 VDD_CORE 1.08 V ~ 1.32 V 1.24 V
34 VIN33_REG1 2.97 V ~ 3.63 V 3.33 V
66 VIN33_REG2 2.97 V ~ 3.63 V 3.3 V
68 VDD_PLL 1.08 V ~ 1.32 V 1.24 V
IC701 AMP
1 GVDD_AB -0.3 V ~ 13.2 V 11.7 V
125 °C
22 GVDD_CD -0.3 V ~ 13.2 V 11.7 V
36, 37, 38 PVDD_AB -0.3 V ~ 50 V 25.5 V
29, 30, 31 PVDD_CD -0.3 V ~ 50 V 25.5 V
2 VDD -0.3 V ~ 13.2 V 11.9 V
8 DVDD -0.3 V ~ 4.2 V 3.304 V
13 AVDD -0.3 V ~ 8.5 V 7.8 V
IC803 DC,DC
1 VIN 4.2 V ~ 17 V 12.1 V
125 °C
2 SW 0.8 V ~ 10 V 5.17 V
1-1. PRIMARY UNIT

LG SJ8S Specifications

General

Brand	LG
Model	SJ8S
Category	Speaker System
Language	English