YAMAHA AV amplifier DSP-AX763 Yamaha - slightly malfunctioning

This is the YAMAHA AV amplifier "DSP-AX763".

I bought this Yamaha used because I wanted to listen to the sound of various companies, but it ended up being a shelf amp because the sound was too normative and boring.
I think it has a precise and well-behaved sound.
It seems to be slightly malfunctioning, so please consider it as junk.

The exterior is generally clean.
There are only a few scratches.
The terminals on the back also have almost no corrosion.

Regarding functionality, I used it as a stereo pre-main amplifier in a digital environment, so I haven't checked the video aspects in detail.
Also, I haven't checked the 7ch surround sound.

I have only confirmed the 2ch drive of front A/B.
It works fine with RCA from CD input and DVD input.
However, there was a difference in volume between left and right channels for the first few minutes after turning on the power.
After running for a few minutes, the left/right difference disappears.
You may need to clean the relay once.

Due to the above reasons, this item is being sold as junk.

The only included accessory is the power cable (no remote control).

Regarding packaging, I will not use a cardboard box.
I will wrap it in bubble wrap three times, which I think provides better cushioning than using a cardboard box improperly.

Below is the specification table.

Rated Output
Front: 95W + 95W (6Ω)
Practical Maximum Output
Front: 135W + 135W (6Ω)
Total Harmonic Distortion 0.06% (CD, etc.)
S/N Ratio 100dB (CD, etc., 250mV), 80dB (Phono MM cartridge, 2.5mV)
Power Consumption 300W (Standby power consumption 0.1W or less)
External Dimensions (Width x Height x Depth) 435W x 171H x 393Dmm
Weight 11.8kg