PIONEER VSX-521 AV Receiver Sound Output Only in Pure Direct Mode But NO Sound in 5.1 Mode Fault Fix

I'll Show You How to Fix Most Common Fault Occur Over the Most of the PIONEER VSX-521 AV Receiver, Sound Output Only in Pure Direct Mode But NO Sound in 5.1 Mode or DTS Mode Fault Fix in Tamil. #pioneer #denon #marantz #avreceiver
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Vellore-632001
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