Editing Atari ST Troubleshooting Guide (section)

== Audio Troubleshooting ==

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{| class="wikitable styled-table"
! Symptom !! Possible Cause !! Recommended Action
|-
| No sound at all || YM2149 failure; bad solder joint on audio output path; monitor cable not carrying audio || Check pin 1 (audio out) on 13-pin DIN. If no signal, check YM2149. If signal present, check cable and monitor.
|-
| Distorted or crackling sound || Failing electrolytic capacitors in the audio output path || Replace audio-path caps. See [[Atari ST Capacitor Replacement Guide]].
|-
| Constant hum or buzz || PSU ripple; ground loop with monitor || Recap PSU. Try a different monitor.
|-
| Sound from only some programs || Software compatibility issue with specific TOS version || Not a hardware fault.
|}