Processor/Power Management Circuit Board Assembly - GE Transport Pro Service Manual

Processor/Power Management Circuit Board Assembly

Processor/Power Management Circuit Board
LCD Backlight Inverter Circuit Board
Speaker
Revision A
Equipment Overview: Theory of Operation
When operating on external power, the power bus voltage is 16.75V,
generated by the external power supply.
No external power switch is provided.
The line voltage range of the external power supply is 85V to 270V AC.
The processor/power management circuit board assembly consists of the
processor/power management circuit board, LCD backlight inverter
circuit board, and speaker. These items are mounted in an open-ended
sheet metal box for additional EMI shielding.
The processor/power management circuit board provides processing
memory, user interface, communication channels, power and
rechargeable battery hardware functions for the monitor.
The LCD backlight inverter is a DC to AC inverter for a dual lamp LCD.
The input voltage is rated at +8V to +18V DC and the output voltage is
rated at 300 to 700 VRMS. The start voltage is 1400 VRMS and the lamp
current is 7 milliamps per tube.
The speaker is used for audible notification of alarms. It is 66mm square,
water-resistant, 3 watt, with a frequency response of 400Hz to 4500Hz.
Transport Pro Patient Monitor
2012659-002
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