Circuit Voltage Chart - LG LAS350B Service Manual

CIRCUIT VOLTAGE CHART

Designator Description
1, 43, 90, 132, 158
23, 55, 72, 107, 142, 160
57, 60, 164(USB_VCC)
IC101 Digital Signal
Processors
IC102 SDRAM 1, 3, 9, 14, 27, 43, 49
IC105 FLASH
IC106 FLASH
IC400 ADC IC
Digital Audio
IC401
Function
IC402 DC TO DC
IC404 DC TO DC
17, 34, 43, 52, 66
IC405 DSP IC
6, 25, 35, 63, 67
IC406 LDO IC
IC701 AMP IC
29, 30, 31, 36, 37, 38
Pin Voltage Spec Measured Voltage
3.0~3.6 V
1.1~1.3 V
3.0~3.6 V
66(USB_VCC) 1.1~1.3 V
68(OSC_VCC) 3.0~3.6 V
87(PLL_VCC) 1.1~1.3 V
3.0~3.6 V
8 3.0~3.6 V
8 3.0~3.6 V
3 4.75~5.25 V
4 3.0~3.6 V
19, 22 3.0~3.6 V
1 31~33 V
2 3.0~3.6 V
1 31~33 V
2 11~13 V
3.0~3.6 V
1.1~1.3 V
1 11~13 V
2 4.75~5.25 V
1, 2, 22 11~13 V
31~33 V
3.28 V
1.19 V
3.28 V
1.19 V
3.28 V
1.19 V
3.28 V
3.28 V
3.28 V
4.98 V
3.28 V
3.28 V
32 V
3.28 V
32 V
11.8 V
3.28 V
1.2 V
11.8 V
4.98 V
11.8 V
32 V
3-39 3-40