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112
Technical overview
power electronics system
POWER
SYSTEM
DIAGRAM
POWER
ADAPTER
BACKLIGHT_ON/OFF
F3
DISPLAY
CCFL
CONTROLLER
SUPPLY
RF_SUPPLY_EN
RECHARGER
BOARD
BATTERY
VCHG+
RECHARGER
SUPPLY
VCHG-
F2
PWR_SWT_COM
THERM1
THERM2
POWER
SWITCH
-BAT
+BAT
BATTERY
BATT. COMPARTMENT
F4
DISPLAY,
+VSW
+3.3V
+3.3V
SUPPLY
LOGIC
F2
+VSW
+5V
PCMCIA
SUPPLY
CONTROLLER
DIGITAL BOARD
T1PIN7
ISO
5.9V
T1PIN8
SUPPLY
T1PIN9
VCC
VCC
F1
SUPPLY
+VSW
+5.00V
NON-ISO
POWER
PS_CONTROL
SUPPLIES
+15V
GND
-15V
(RS423 POWER)
Welch Allyn Propaq CS Vital Signs Monitor
VCC_OVERVOLTAGE
+3.3V_OVERVOLTAGE
SHUTDOWN/
PWR_SWT_COM
MONITOR
POWER
CONTROL
+VSW
BATT_TAP
LOW_VCC
INFREQ_INT/
5.9V SUPPLIES FOR
ISOLATED RS423
ANALOG BOARD
T1
ISOLATED
POWER
SUPPLIES
IAG
(ISOLATED GND)
PIN7
PIN9
PIN8
0696-59
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