Chapter 3 — Theory of Operation
56 CV30 Fixed Mount Computer Service Manual
5 Operation. In this state, the processor is operating. Full functionality of
the CV30 is possible.
The below table summarize the power plane status during sleep and deep
sleep mode with the corresponding switching control signals.
Power Plane Status
Power Plane
Sleep
Mode
Deep Sleep
Mode
Remark
HEATER_MAIN, V12P0_HEATER ON OFF
VCC_HEATER ON OFF nHEATER_EN
V12P0_SYS, V12P0 ON OFF
V12P0_CCFL OFF OFF BACKLITE_EN
SYS_PWR ON OFF
BK_PWR, MAIN_PWR ON ON nBATT_FAULT_DET switch MAIN_PWR to
source from BK_PWR@ DEEP SLEEP. Always
ON plane.
V5P0_MAIN ON OFF
V3P3_AUX2 ON OFF
V3P3_USBH ON OFF USBH_PWR_EN
V3P3_LCD OFF OFF ENCTL
V4P5 OFF OFF AUDIO_SPKR_PWR_EN
V5P0_COM1, V5P0_COM2 OFF OFF DSUB_PWR_EN
V5P0_USB1, V5P0_USB2 OFF OFF nUSB_PSW1, nUSB_PSW2
V5P0_USBH ON OFF USBH_PWR_EN
VCC_CORE, VCC_PLL, VCC_SRAM OFF OFF PWR_EN
V2P5 ON ON Always ON plane
V1P8 ON ON Always ON plane
V1P8_CPU, V1P8_CPU_MEM,
V1P8_GF_HOST
ON OFF
V1P5_LCD OFF OFF LCD_CORE_PWR_EN
V3P3_MAIN, V3P3_PIC ON ON Always ON plane
V3P3_CPU ON OFF
V3P3_CODEC_DIG,
V3P3_CODEC_ANLG
ON OFF
V3P3_ANT_ANLG OFF OFF nPWR_EN
V3P3_SD OFF OFF nSD_PWR_EN
V3P3_AUX ON OFF nSYS_EN
V3P3_ETH, V3P3_ETH_ANLG OFF OFF nETH_PWR_EN_PF
V3P3_CF OFF OFF nCF_PWR_EN_PF
V3P3_BT OFF OFF nBT_PWR_EN_PF
V3P3_TXCVR OFF OFF nCF_PWR_EN_PF and nETH_EN
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