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kimberlyturnerAug 23, 2025
What to do if my Sanyo Multimedia projector has no sound?
- RRyan GregoryAug 25, 2025
If your Sanyo Multimedia projector isn't producing any sound, begin by inspecting IC5101 (Audio Selector), the audio input stage, and their surrounding circuits. Ensure the 12V_AUDIO power supply is functioning correctly. Also, check the audio output circuit or muting circuit, noting that the Mute signal comes from pin 137 of IC401 (DLP Data Processor), and the OUT_DET signal is sent from the Audio Out terminal. A high signal at pin 137 of IC401 and a low signal at pin 1 of IC001 indicates Mute-On. Further, examine IC001 (Audio Output) or the speaker drive circuit and peripheral components, along with the 16VA power supply and the speaker terminal connection.
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