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REDUCED VOLUME - ONE OR MORE SPEAKERS (W/O UM8) Reduced Volume - One or More Speakers (w/o UM8) Did you find and correct the condition? Go to Step 9 Go to Step 7 7 Replace the speaker. Refer to Speaker Go to Step 9 - 8 Replace the radio. Refer to Control Go to Step 9 - 9 Operate the system in order to verify the System OK Go to Step 2 Step Action Yes No Schematic Reference: Radio/Navigation System Schematics 1 Did you perform the Diagnostic System Go to Step 2 Go to 2 1. Turn ON the ignition, with the engine OFF. 2. Turn ON the radio. 3. Adjust the radio balance and fade controls to each speaker. Do all of the speakers operate properly? Go to Testing Go to Step 3 3 1. Turn the ignition ON, with the engine OFF. 2. Adjust the volume level. 3. Test the appropriate speaker output circuits of the radio for A/C voltage.
2007 Hummer H3 2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3
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