Circuit/System Verification

Without Amplifier (U65) 

Radio ON, Mute OFF, verify clear audio is heard from each audio speaker.

• If audio is inoperative from all speakers, replace the radio.
• If audio is inoperative from one or more, but not all, speakers or the audio emitted from the speakers is not clear, refer to Speaker Circuit Malfunction - without Amplifier.

With Amplifier (UQA) 

Radio ON, Mute OFF, verify clear audio is heard from each audio speaker.

• If audio is not heard from all speakers, or the audio emitted from the speakers is not clear, refer to Speaker Circuit Malfunction - with Amplifier.