Without High Output Amp and Subwoofer
1. Verify the customer concern by operating the system.2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
Visual Inspection Chart:
4. If the concern is not visually evident, verify the symptom and refer to the Self - Diagnostic Mode. Without High Output Amp and Subwoofer Component Tests and General Diagnostics