XAV2E-LED Troubleshooting
| Button Will Not Power On |
| Ensure correct polarity on PWR+ & PWR- |
Measure voltage across PWR+ & PWR- (10-24VDC). If outside of range, disconnect field wiring to button and measure across wires. If supply voltage is still out of range, narrow problem to field wiring or to XAVCU2/XAVCU2-DC. If the voltage returns to normal, this may be a shorted button. If button has correct voltage and button still does not power up, RMA button. |
| Lights/RRFB Will Not Flash/Activate |
| Ensure button is powered on (above) |
Measure voltage (10-24VDC) between BTN & PWR- terminals. If no voltage is present, check wiring and XAVCU2/XAVCU2-DC. If button voltage is present, pressing the button should drop the voltage between BTN & PWR- to ~0VDC. If voltage is present normally and it does not drop with a button press, RMA button. |
| Button will not play sounds |
| Ensure button is receiving correct voltage (10-24 VDC) on PWR+ & PWR- terminals. |
| Ensure voltage between MUTE & PWR- drops to ~0VDC when button is pressed and RRFB is activated. If it does drop, RMA button. If is does not drop, RMA XAVCU2/XAVCU2-DC |
| Ensure Audio daughter board is plugged into control board correctly |
| Polara Test Configuration: For Reference Only |
| XAV2E-LED Button: |
| PWR+ & PWR-: 24VDC (13-15V for XAVCU2-DC) |
BTN & PWR-: 24VDC (13-15V for XAVCU2-DC) When button is pressed > BTN & PWR-: ~0VDC |
| LED & PWR-: 19.5VDC with LEDs off; LED & PWR-: 0.36VDC with LEDs on |
| MUTE & PWR-: 12VDC with no message; MUTE & PWR-: ~0VDC with message playing |
| MIC & PWR-: 70mVDC with no message; MIC & PWR-: ~3.3VDC with message playing |
| AUD1 & AUD2: 0VDC with no audio; AUD1 & AUD2: ~15mVDC with audio |
| XAVCU2/XAVCU2-DC: |
| PWR LED on PCBA should flash every second when PCBA is operational |
| BUTTON LED should turn on with every button press |
| Audio PCBA: PN 850-66X |