AV amplifier Onkyo TX-SA608

I purchased this item used and used it for about six months, but the sound has become intermittent.

Only the main unit and power cable are included.

Power has been confirmed.
The sound either comes and goes, only comes from one side, or doesn't come out at all, so I am selling it as "junk."

No claims or returns accepted.

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The following is from the product introduction page:
Onkyo will release two AV amplifier models supporting HDMI Ver. 1.4, which supports 3D video, starting March 31st. The lineup includes the entry-level models "TX-SA608" and "TX-SA578." The prices and release dates are: SA608 at 84,000 yen, released March 31st, and SA578 at 71,400 yen, released April 30th. The body colors are black (B) and silver (S) for the SA608, and black only for the SA578.

The main features are support for 3D video transmission and the Audio Return Channel (ARC), which are adopted in the latest HDMI 1.4 standard.

"3D video support" means that it can pass through 3D video of 1080/60p x 2 (for left/right eyes) transmitted between 3D-compatible TVs/BD players. Also, with ARC support, the new models can transmit audio signals from the TV to the amplifier in the same HDMI cable, whereas previously, an audio cable other than HDMI was needed to send the sound from the TV's tuner to the amplifier.
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