RF Amplifier Diagnostics - Quick Diag

1 Diagnostic Link

Diagnostics >> Quick Diagnostics >> RF Amplifier

2 Purpose

note:

'RF Amplifier Diagnostics - Quick Diag' does not include 'Average Forward Pwr Measurement Test' and 'Average Ref Pwr Measurement Test'.

If necessary, perform 'RF Amplifier Diagnostics(Full)'.

Notice Image
  • notice
  • This diagnostics may fail if multiple iteration numbers are set even though there is no problem in SRFD3. If this issue occurred, perform the following.
    • Perform TPS reset.
    • Open RF Amplifier Diagnostics menu and set Iteration Number to '1' .
    • Run RF Amplifier Diagnostics.
    • If the fail is occurred, perform TPS reset and perform same diagnostics again (step1 ~ step3).
    • If the same fail is occurred, perform troubleshooting. The problem may exist in CAN communication between MGD and SRFD3 or SRFD3 itself.

This document describes the theory of each test in RF Amplifier Diagnostics - Quick Diag.

3 Peak Pwr Overload Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on an overload detection function of Peak Forward Power Overload Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Overload Circuit Test, the trip point for detecting the overload is temporary adjusted below the level of the inject test input voltage in order to verify the functionality of the circuit.

4 Peak Pwr Measurement Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on a measurement function of Peak Forward Power Measurement Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Measurement Circuit Test, the diagnostic will inject a test voltage into the measurement circuit, cause an analog to digital conversion to occur, and read and compare the conversion results to an expected value.

5 Junction Temp. Overload Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on an overload detection function of Junction Temperature Overload Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Overload Circuit Test, the trip point for detecting the overload is temporary adjusted below the level of the inject test input voltage in order to verify the functionality of the circuit.

6 Junction Temp. Measurement Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on a measurement function of Junction Temperature Measurement Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Measurement Circuit Test, the diagnostic will inject a test voltage into the measurement circuit, cause an analog to digital conversion to occur, and read and compare the conversion results to an expected value.

7 Reflected Pwr Overload Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on an overload detection function of Peak Reflected Power Overload Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Overload Circuit Test, the trip point for detecting the overload is temporary adjusted below the level of the inject test input voltage in order to verify the functionality of the circuit.

8 Reflected Pwr Measurement Test

This diagnostic provides self-test functions of internal amplifier circuitry. This self-test is performed on a measurement function of Peak Reflected Power Measurement Circuit. The test signal that is input from the amplifier to control board is replaced by a test voltage that is generated by circuitry on the control board under software control. For Overload Circuit Test, the trip point for detecting the overload is temporary adjusted below the level of the inject test input voltage in order to verify the functionality of the circuit.

9 PSU +15 Voltage Test

This diagnostic tests the auxiliary PSU voltage (+15 Volts) of internal amplifier.

10 PSU -15 Voltage Test

This diagnostic tests the auxiliary PSU voltage (-15 Volts) of internal amplifier.

11 PSU +48 Voltage Test

This diagnostic tests the auxiliary PSU voltage (+48 Volts) of internal amplifier.

12 PSU High Voltage Test

This diagnostic tests the auxiliary PSU voltage (High Voltage; +160 Volts) of internal amplifier.