Speakers - Reduced Volume/Audio Distortion
IMPORTANT:
The following information lists the most probable cause of the concern to the least probable cause. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with replacement. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems.
With RPO UQ2
- Speaker output circuit high resistance-Test the appropriate speaker output circuits for high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- Defective speaker-Replace the appropriate speaker. Refer to Speaker Replacement Reference .
With RPO U85
- Speaker output circuit high resistance-Test the appropriate speaker output circuits for high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- Gain control signal circuit short to ground-Test the gain control signal circuit for a short ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- Low level audio circuit open-Test the appropriate low level audio circuit for an open. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
- Defective speaker-Replace the appropriate speaker. Refer to Speaker Replacement Reference .
IMPORTANT:
The following procedure assumes all speakers are operative for all modes of operation except digital radio.
With RPO U2K or U2L
- Audio common circuit open or short to battery positive voltage-Test the audio common circuit for an open or short to battery positive voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- No audio output from the digital radio receiver-Replace the digital radio receiver. Refer to Receiver Replacement - Digital Radio .
- No digital radio audio output from the radio-Replace the radio. Refer to Radio Replacement .