7/8
F. USB PROBLEMS
Problem: USB is not working or no USB Detection.
Check USB Supply, It should be nearly 5V. Also USB Enable should be logic high.
G. NO SOUND PROBLEM
Problem: No audio at main TV speaker outputs.
Check supply voltages of 24V VDD_AUDIO, 3.3V AUDIO_AVDD and AUDIO_DVDD with a voltage-
meter. There may be a problem in headphone connector or headphone detect circuit (when headphone is
connected, speakers are automatically muted). Measure voltage at HP_DETECT pin, it should be 3.3v.
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