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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 183 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Video Entertainment System Wireless Headphone Inoperative (Rear Seat Entertainment RPO U42) >> Circuit Description

Circuit Description

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The infrared transmitter is grounded and powered by the rear seat audio (RSA) module. When listening to the headphones, the infrared transmitter sends an infrared signal to the headphones. There are two channels on the headphones, channel 1 is dedicated to the video screen, and channel 2 is dedicated to the rear seat audio (RSA). The audio that is sent over the DVD and rear seat audio signal circuits is a varying AC voltage.

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