Speakers Inoperative - One or More

SPEAKERS INOPERATIVE - ONE OR MORE

IMPORTANT: The following information lists the most probable cause of the concern to the least probable cause, followed by the appropriate test for the condition. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with the replacement.

Audio output from amplifier to speaker shorted to ground or shorted to battery positive voltage.

Test the affected audio output circuits from the amplifier for a short to ground or a short to positive battery voltage.

Speaker Inoperative - One or More

Without RPO UZ6 (ION) or RPO WBM (VUE)
1. No audio output from the radio.Test for any AC voltage between the audio signal circuits at the affected speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive voltage or shorts to ground on all speaker output circuits from the radio. If no shorts are located, replace the radio.
2. Speaker output open. Test the appropriate speaker outputs for an open.
3. Defective Speaker.Replace the appropriate speaker.

With RPO UZ6 (ION) or RPO WBM (VUE)
1. Speaker output from amplifier open.Test the appropriate speaker outputs for an open.
2. Defective speaker.Replace the appropriate speaker.
3. No audio output from the amplifier.Test for any AC voltage between the audio signal circuits at the affected speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive voltage or shorts to ground on the affected speaker outputs. If no shorts are located, replace the amplifier.