• No Sound on CP810 / CP900

    - Determine whether processor is on (usually via remote assistant or by processor LEDs)

    - See if any sound is heard through the monitor earphones.

    - Determine if telecoil is turned on by looking for a black square on the RA, or by seeing what happens when the top button is pressed.

    - Try adjusting volume / sensitivity level by using the Remote Assistant / Remote control and observe changes.

    - Try backups for suspected components one at a time and exchange the necessary suspected components.

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