LG SJ4Y-S - Circuit Voltage Chart; IC Voltage; Capacitor Voltage; Connector Voltage

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Only for training and service purposes.
3-243-23
CIRCUIT VOLTAGE CHART
1. IC VOLTAGE 2. CAPACITOR VOLTAGE
3. CONNECTOR VOLTAGE
Designator Description Pin No Pin Name Voltage Spec
Measured
Voltage
Temperature
Spec.
IC101 IC,Microcontrollers
11 AVCC 1.8 V ~ 3.6 V 3.34 V
85 °C
15, 40 DVCC 1.8 V ~ 3.6 V 3.34 V
IC102 IC,Serial Flash Memory 8 VCC 2.7 V ~ 3.6 V 3.34 V 85 °C
IC103 IC,Serial Flash Memory 8 VCC 2.7 V ~ 3.6 V 3.33 V 85 °C
IC201 IC,A/D Converter
3 VCC 4.5 V ~ 5.5 V 5.15 V
125 °C
4 VDD 2.7 V ~ 3.6 V 3.32 V
IC301 IC,DC,DC Converter
4 VIN 2.7 V ~ 5.5 V 5.16 V
125 °C
3 SW 0.6 V ~ 5.225 V 3.37 V
IC302 IC,DC,DC Converter
2 VIN + 4.0 V ~ + 36 V 25.2 V
125 °C
3 VOUT 0.8 V ~ 33 V 12.08 V
IC303 IC,DC,DC Converter
4 VIN 2.7 V ~ 5.5 V 5.15 V
125 °C
3 SW 0.6 V ~ 5.225 V 1.51 V
IC304 IC,Analog Switch
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 IC,Analog Switch
5 VIN 4.5 V ~ 5.5 V 5.17 V
110 °C
1 VOUT
5.17 V
(USB 5.16 V)
IC308 IC,Analog Switch
5 VIN 4.5 V ~ 5.5 V 5.16 V
110 °C
1 VOUT 5.14 V
IC309 IC,Analog Switch
5 VIN 2.5 V ~ 5.5 V 5.16 V
125 °C
1 VOUT 0 V ~ 5.5 V D_3.34V
IC311 IC,DC,DC Converter
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 IC,DDR3 SDRAM
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 IC,NOR 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
IC700 IC,Audio Amplifi er
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 3.306 V
13 13 AVDD -0.3 V ~ 8.5 V 7.8 V
IC701 IC,Audio Amplifi er
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 IC,DC,DC Converter
1 VIN 4.2 V ~ 17 V 12.1 V
125 °C
2 SW 0.8 V ~ 10 V 5.17 V
Designator Description SPEC Real Value (#1, #2)/ V Temperature Spec.
C390, C734,
C769
Capacitor,AL,Chip 330 uF/ 35 V 25.76 25.75 25.78 25.81 25.76 -40 ~ 105 °C/ 2000 HR
WC706 Capacitor,AL,Chip 100 uF/ 16 V 3.42 3.41 3.42 3.42 3.41 -55 ~ 105 °C/ 2000 HR
WC904 Capacitor,AL,Radial 100 uF/ 460 V 155.3 155.4 155.4 155.29 155.4 -25 ~ 105 °C/ 2000 HR
WC917 Capacitor,AL,Chip 47 uF/ 50 V 20.15 20.22 20.22 20.16 20.2 -55 ~ 105 °C/ 2000 HR
WC924, WC925,
WC926
Capacitor,AL,Radial 1000 uF/ 50 V 34.9 34.88 34.9 34.93 34.88 -55 ~ 105 °C/ 2000 HR
CN102 (MAIN <-> BT)
Power MAIN BT module SPEC
3.3 VA 3.33 V 3.32 V 3.3 VA (1.7 V ~ 3.6 V)
CN107 (MAIN <-> Wireless)
Power MAIN Wireless module SPEC
WL_3V3 3.308 V 3.304 V 3.3 V (3.15 V ~ 3.45 V)
CN108 (MAIN <-> Rear Wireless)
Power MAIN Wireless module SPEC
3.3 VA 3.33 V 3.302 V 3.3 V (3.15 ~ 3.45 V)