After updated of XMOS 3115, a problem was found in my RS150.
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The output is locked to HDMI and cannot be switched to balance output. The problem still happens after reboot the system. 
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Speaker makes a spark sound constantly, which is like a sound of poor electrical contact. Only can stop by switch off the power amp. A loud spark sound will be heard when switch off the power amp. 
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RS150 will auto switch “ON” and the screen menu was hang… 
Any suggestion can solve this problem
