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Chapter 4: Troubleshooting

Service Mode

4-6 Service Manual

4.1.7 Diagnostics

Diagnostics provides the following functions:

• Temperature A/D Channels

•VGA Test

• Touch Panel Buttons / Switches

•Alarm Tests

•Odometer

•Logs

• Heat Engine Check

4.1.7.1 Temperature ADC Diagnostics

This screen displays reference voltages, readings from both patient probe thermistors, one fixed thermistor

input, and the ambient temperature of the Control Board.

Expected Values

ADC Channel Raw Value Corrected Value

1 Vthref 2048 (+ / - 4) 1500 (+ / - 3) mV

2 Vo/t NA NA

3 Pat Probe Thermistor 1 NA Pat Probe Thermistor 2 ±0.3°C

4 Pat Probe Thermistor 2 NA Pat Probe Thermistor 1 ±0.3°C

5 Vref 37°C 2232 (+ / - 23) 37.3 (+ / - 0.2)°C

6 Ambient Temp NA NA

7 Unused NA NA

8 Vref 1P235 1706 (+ / - 8) 1250 (+ / - 6) mV

Questions and Answers:

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GE PANDA Specifications

General

Type	Infant Warmer
Manufacturer	GE Healthcare
Control Modes	Manual, Servo
Integrated Scale	Yes
SpO2 Monitoring	Optional
Bed Tilt	Yes
Heater Type	Ceramic
Alarms	Power Failure
Power Requirements	100-240 VAC, 50/60 Hz
Model	PANDA
Resuscitation Options	Optional
Skin Temperature Probe Accuracy	±0.3°C