Intermec CV30 - Heater Power System

Chapter 3 — Theory of Operation
48 CV30 Fixed Mount Computer Service Manual
MAIN_PWR Power Distribution System
Heater Power System
The heater power system refers to the touch panel heater power. The
purpose of the heater is to reduce the condensation and frost on the
external surface of the display as a result of moving to and from sub-
freezing temperatures to more temperate locations.
SW
V3P3_ETH
V3P3_ETH_ANLG
FB
FB
nETH _PW R_EN_PF
MAIN_PWR
PROCESSOR
PX A270
FB
FB
V1P8_CPU_MEM
ETHERNET
CONTROLLER
LAN91C111
M AGNETIC
HX1188
VCC_CORE_CPU
SDRAM
K4M 51163PC
SW
V1P8_CPU
nSY S EN
V2P5
POW ER
MANAGEMENT
M AX1587C
(V in= 2.5V ~5.5V )
FB
V1P8_GF_H OST
GRAPHIC
CONTROLLER
GoFORCE4000
FB
LCD CORE
LTC3406
V1P5_LCD
LCD CORE PW R EN
PW R EN
GRAPHIC
CONTROLLER
GoFORCE4000
3.3V M AIN
BUCK
LTC3443
V3P3_PIC
PIC
PIC18LF4320
SW
V3P3_CODEC_ANLG
FB
AC97 AUDIO
TOUCH PANEL
CODEC
W M 9713L
V3P3_ANT_ANLG
RADOME
EXT ATNTENNA
SW CCT
SW
AUDIO CODEC PWR EN
nPW R E N
SW
nSY S EN
PROCESSOR
PX A270
FB
DOC
M D 8832-d1G
GRAPHIC
CONTROLLER
GoFORCE4000
FB
SW
V3P3_SD
nSD PW R EN
nSYS_EN
V3P3_AUX
SW
SW
nCF_PW R_EN _PF
V 3P 3_ C F
SW
V3P3_BT
nBT_PW R_EN_PF
SW
V 3P 3_ T X C V R
nETH _EN
AND
nCF_PW R_EN _PF
V3P3_M AIN
VCC_CORE (1.35V)
VCC_PLL (1.3V)
VCC
_
SRAM
(
1.1V
)
V1P8
V3P3_CPU
V3P3_CO DEC_DIG
FB
FB
O FF D uring Sleep and D eep Sleep
Always ON plane
OFF During Deep Sleep