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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Cellular System, Entertainment System & Navigation System) >> Diagnostic Information and Procedures >> Video Entertainment System Wireless Headphone Inoperative >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Test or replace the headphone batteries before performing the circuit/system verification.
  1. Turn ON the wireless headphones. Verify the power indicator lamp on the wireless headphone illuminates.
    • If the power indicator lamp does not illuminate, replace the wireless headphones.
  2. Ignition ON, and DVD playing, verify all of the headphones are working properly.
    • If only one of the headphones is not producing sound, or the sound is distorted, replace the appropriate set of headphones.
    • If all of the headphones are inoperative, or the sound is distorted, replace the DVD player.
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