Glenn Doiron
Still Fresh
- Joined
- Apr 19, 2019
- Messages
- 4
Symptoms: Openpandora audio stopped working a few weeks ago. Occasionally, produces static. Just found the time to look at it. First checked the audio jack, no sound from it either.
Checked U12.1, digital signal present.
Checked U12.2, no signal present -> Checked U21.19, no signal present (as expected) -> Checked U21.5, digital signal present (1.8V peak-to-peak with abundant over/undershoot).
Ordered a new SN74AVC8T245 (likely culprit) and PCM1773PW (just in case the bus buffer isn't the problem.)
Checked U12.1, digital signal present.
Checked U12.2, no signal present -> Checked U21.19, no signal present (as expected) -> Checked U21.5, digital signal present (1.8V peak-to-peak with abundant over/undershoot).
Ordered a new SN74AVC8T245 (likely culprit) and PCM1773PW (just in case the bus buffer isn't the problem.)