3.5.2.5 AC Load Diagnostics Section
AC load diagnostics report speaker impedance and phase. The diagnostics can be performed with one or all four
channels.
Select the correct output impedance and click start. Follow the pop up instructions to complete the load
diagnostics run.
Note
Make sure to set the digital input to 0 dBFS (100% full-scale). If the sine wave is provided from the
USB audio, turn the audio media volume and PC sound card volume to maximum.
Click on the “flip” icon located on the top right of the AC load diagnostics box to see the results.
Figure 3-14. AC Load Diagnostics Section
3.5.2.6 DC Load Diagnostics Section
The DC load diagnostics report if a channel is short to power, short to ground, short to load or open.
Select the impedance of the load from 0.5 to 5 Ω. Click start and then click the “flip” on the top right of the box to
view results.
If a channel is selected as a line-out, click on “LO ENA LD” to enable line-out load diagnostics.
“Retry” box is used when DC load diagnostics are run more than one time.
DC load diagnostics can be aborted by click on the “Abort LD” box.
Figure 3-15. DC Load Diagnostics Section
Software Overview
SLOU553 – MAY 2021
TAS6424E-Q1 EVM
15
Copyright © 2021 Texas Instruments Incorporated
