Yamaha RX-V671 Service Manual page 46

RX-V671/HTR-6064/RX-A710
U2. USB
This menu is used to check audio signal route of USB.
U2-1. BF (NETWORK microprocessor) TEST 1kHz
The built-in noise generator of BF (IC901 on DIGITAL P.C.B.) outputs the 1 kHz test tone.
Output: From Front L/R, Center, Surround L/R, Surround Back L/R
U2-2. BF (NETWORK microprocessor) TEST 20Hz
Not for service.
U2-3. BF (NETWORK microprocessor) TEST 20kHz
Not for service.
U2-4. USB FRONT 1 TRACK
The 1st music file stored in the USB storage device connected to the USB port is reproduced.
* Copy 2 or more music files from PC to the root folder of the USB storage device in advance.
U2-5. USB FRONT 2 TRACK
The 2nd music file stored in the USB storage device connected to the USB port is reproduced.
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