#
CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION

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• Make sure the customer complain and identify either the center panel malfunction or audio unit malfunction.

## How to activate audio panel switch confirmation mode

1. Turn the audio system to ON.

2. Press both POWER SW and CLOCK buttons for a second at the same time.

3. The audio panel switch confirmation mode is now activated.

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Press each switch on the center panel. • Does buzzer sound when pressing each buzzer? | Yes | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure.
No | Go to the next step.
2 | • Disassemble and reassemble the center panel and audio unit. • Activate the audio panel switch confirmation mode. • Does buzzer sound when pressing each buzzer? | Yes | Go to the next step.
No | Replace the center panel.
3 | • Does the audio system operate properly?. | Yes | The system is normal.
No | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure.