Operational Problems
3-28 Troubleshooting
Audio
The following table covers problems that may arise with the audio tones or
voice prompts.
NOTE Before replacing any parts, check to see if the cables and flex circuits are
properly connected. See "Servicing Notes" on page 4-1.
Table 3-13 Operational Problems - Audio Tones/Voice Prompts
Symptom Possible Causes Suggested solution
No audio at all. Speaker failure. Replace Speaker Assembly.
Control PCA failure. Replace Control PCA.
Audio is distorted. Damage to speaker label. Replace speaker label.
Speaker failure. Replace Speaker Assembly.
Control PCA failure. Replace Control PCA.
Buzzing noise when audio active. Damage to speaker label. Replace speaker label.
Debris between speaker and
speaker label.
Remove speaker label, clean out
debris, install new speaker label.
Speaker hardware loose. Tighten hardware as needed.
Speaker failure. Replace Speaker Assembly.
Control PCA failure. Replace Control PCA.
Tones present but no voice prompt
(in AED Mode).
Control PCA failure. Replace Control PCA.
Voice prompt present but no tones. Control PCA failure. Replace Control PCA.
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