Circuit/System Verification

Without Amplifier 

Radio ON, verify clear audio is heard from each audio speaker controlled by the radio.

• 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 

Radio ON, verify clear audio is heard from each audio speaker controlled by the audio amplifier.

• If audio is inoperative from all speakers, refer to Amplifier Circuit Malfunction.
• 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 - with Amplifier.