Power and Processing:

• 7-channel amplifier

• 135 watts per channel into 8 ohms (20-20,000 Hz) at 0.08% THD, with 2 channels driven

• THX® Select2 Plus™ certification guarantees pristine home theater sound

• Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio and Dolby Pro Logic® IIz

• Audyssey DSX® processing for enhanced surround sound height or width effects using additional front speakers

• dual core analog-to-HDMI video upconversion (up to 1080p) with HQV® Vida3and Marvell Qdeo™ video processing

• ISF (Imaging Science Foundation) video calibration for each video source (calibration requires an ISF-certified technician)

• Audyssey MultEQ® XT32 eight-point auto setup and room calibration system (microphone included)

• Audyssey Dynamic Volume™ mode to maintain steady listening levels

• Audyssey Dynamic EQ™ for fuller surround sound at lower volumes

Digital Music Options:

• direct digital connection of iPod®/iPhone® through front-panel USB input allows music control via receiver's remote

• DLNA (Digital Living Network Alliance) certified to ensure optimal compatibility with other network-enabled equipment

• Wi-Fi ready, requires optional Onkyo UWF-1 adapter

• Internet streaming capabilities for Internet radio, Spotify®, SIRIUS/XM® Internet radio, Pandora® Internet radio, Rhapsody® and more (may require registration and subscription fees)

• Bluetooth integration (requires optional optional Onkyo adapter)

Multi-room Audio:

• three-room/three-source output:

  • powered audio output for 2nd or 3rd room (using powered 2nd room stereo output allows 5.1 home theater in main room)

  • line-level stereo audio output for 2nd and 3rd room

Audio Performance Features:

• high-current amplifier design

• 192kHz/24-bit Burr-Brown digital-to-analog converters for all channels

• Pure Audio mode switches off unnecessary circuitry to provide cleaner sound

• back surround speaker channels re-assignable for bi-amping compatible front left and right speakers

• Music Optimizer function enhances the sound quality of compressed music files

• detachable power cord

Connections:

• 1080p-compatible HDMI switching: 8 in (including 1 front-panel input), 2 out

• HDMI version 1.4 with support for 3D video, Audio Return Channel, Deep Color, x.v.Color, auto lip-sync, and HDMI-CEC

• Audio Return Channel function receives digital audio signals from a compatible HDTV's tuner via HDMI

• digital audio inputs: 2 optical and 3 coaxial

• analog audio/video inputs:

  • 5 inputs with composite video (1 front-panel)

  • component video switching with 2 inputs, 1 output

• 3 audio-only inputs, including a phono input for hooking up a turntable

• Ethernet port for music streaming from a PC network

• preamp outputs for 2 powered subwoofers

• 1 pair of main speaker outputs

General features:

• convenient on-screen display (via HDMI only)

• 40 AM/FM presets

• Onkyo's free remote app lets you use your iPod touch®, iPhone® or Android™ device as a Wi-Fi remote

• 435 x 198.5 x 435.5 mm

• weight: 18.3 kg

Selling an Onkyo tx-nr818 amplifier. The amplifier turns on but no sound. It has BGA chip D830K013BZKB4.

So I don't know why there is no sound.

Selling it for repair or for parts with no warranty and no returns