HD820 5.1CH Audio Decoder Manual

Introduction:

HD820 audio decoding system can decode panoramic sound, DTS, Dolby AC-3, LPCM and other digital audio format source code; Support U disk play DTS, AC3, WAV, FLAC, APE, MP3 and other lossless high-quality audio playback, support HDMI input source audio decoding, support ARC audio transmission, support fiber and coaxial input decoding, support Bluetooth 5.0 wireless transmission, support USB playback and computer USB sound card, To achieve one machine to complete all audio equipment connection and decode output. It can be output through 5.1 channel or 2.0 channel, fully compatible with all power amplifier or active audio equipment on the market. The front panel LED display can display the working state of the product, panel key operation and infrared remote control operation. It can be used with DVD player, Blu-ray player, network player, set-top box, PS2, PS3, Xbox360, PC, home theater, car and many other entertainment equipment.

Features:

1.Supports one digital coaxial input, one digital optical input, one HDMI input, one ARC audio return input, one Bluetooth 5.0 input, one USB playback input and USB computer sound card input. Different signal sources can be switched freely.

2. Supports a set of 5.1-channel analog audio output, any signal input decoding and playback support two output modes of 5.1 or 2.0 channels, which can be flexibly configured according to the number of speakers.

3. The latest Bluetooth 5.0 transmission method can automatically detect and be compatible with Bluetooth devices.

4. Adopt 24bit/192KHz audio DSP, the fourth generation 24bit/192KHz DAC six-channel chip, with power-on reset function.

5. Support Dolby Digital AC3, DTS, LPCM, HDCD, PCM, Dolby digital, Dolby Prologic Ⅱ and other digital audio format decoding.

6. Support U disk multimedia playback, which can play multimedia content such as 5.1 channel and lossless music, with a maximum capacity of 128G/FAT32 format.

7. Support first-level folder playback, and the remote control can also quickly select 1-10 songs for playback.

8. High-quality sound quality, low noise, computer mute and reset function, better protection of the subsequent stage and equipment.

9. One-key switch input source, convenient and quick operation, support simple operation of panel buttons and infrared remote control operation.

10. The panel LED indicates the working status, and it is controlled by an external multi-function infrared remote control.

10.Power-off memory function, automatically switch to the last used signal channel after restarting, USB playback and memory files before power-off.

11. The working indicator on the front panel, the corresponding indicator is always on when there is a signal input, and the corresponding indicator flashes when there is no signal input.

12. Use DC 12V/1A external power adapter for power supply, wide voltage can use DC (7-20V) power supply.

Connection and debugging:

1. Install and tighten the Bluetooth antenna. Connect the 12V/1A power adapter (check the power specifications; do not use non-standard power supplies) to the DC input terminal of the HD820 decoder power supply, and then plug the adapter into the indoor power outlet.

2. Connect the 5.1 audio output of the HD820 decoder to the power amplifier or the INPUT of 5.1 speaker through the six Lotus RCA cables, and switch the power amplifier to the corresponding 5.1 channel input or AC-3 input (please refer to the text beside the interface of the machine for specific mode selection and connection).

FL- left front, FR- right front, SL- left surround, SR- right surround, CE- Middle, SW- Bass以上翻译结果来自有道神经网络翻译（YNMT）· 通用领域

3. Bluetooth input mode:

1) Turn on the HD820 and switch to Bluetooth mode (BT light on).

2) Turn on the Bluetooth device of the mobile phone, search for HD820, connect this Bluetooth name for pairing, the connection is successful,

3) Open the mobile phone music player and click to play music.

PS: Can not pair, delete all connected Bluetooth device records from the phone or tablet device. Reconnect the device after the phone or tablet is restarted to restore the device’s Bluetooth driver.

4. It is strongly recommended to debug and connect the speaker through Bluetooth mode to ensure that the speaker is properly connected to the HD820 decoder and makes sound. If an exception occurs, connect the speaker FL or FR to each of the six ports of the decoder output. Check that each channel output of decoder is normal before switching to other modes.

5. HDMI INPUT mode: Connect the output of the set-top box player to the HDMI input input of the HD820 through the HDMI cable, and connect the HDMI OUT output of the HD820 to the HDMI input display image of the monitor, TV, projection device, etc. HD820 can be replaced by HDMI input (HDMI light on).

6. Fiber or COAXIAL INPUT mode connecting the fiber or coaxial outlet of the player or television to the OPTICAL INPUT or coaxial input port of the HD820 via the fiber audio cable or 75 euro audio cable coaxial. Set the TV’s audio output to fiber or coaxial source output, and switch the HD820 to fiber (OPT on) or coaxial input (COA on).

7, HDMI(ARC) audio transmission function, please use 19+1 core HDMI standard HDMI cable, connect the HDMI ARC interface of the TV and HDMI OUT(ARC) interface of HD820, the audio output of the TV as HDMI ARC source output, The HD820 switches to the HDMI ARC input (ARC light on).
8. For USB flash drive playback, please first format the USB flash drive or check whether the USB flash drive is FAT32 format 16bit, copy the audio file to the USB flash drive, you can build a first-level folder and copy it. Plug it into the USB port of the decoder and play it. Switch the HD820 to the USB input mode (USB light on).
9. Usb-pc computer sound card, please switch the HD820 decoder to USB-PC input, connect the computer USB and the decoder USB with the USB cable, then the computer sound card driver can be installed normally.

(driver driver download page and player Settings can refer to: http://www.aoyint.com/pcusbdriver.html).

 

Physical connection port diagram:

 

Remote control learning key function operation description:
1. Hold down the OK key for about 3 seconds. The red LED indicator is steady on to enter the learning state.
2. Press the required learning button, and the LED flashes to enter the learning receiving state.
3. The two remote control transmitting heads are 1-3 cm apart. After alignment, press the button on the TV remote control that you want to learn and keep for about 2 seconds to release.
4. After learning successfully, the LED flashes three times quickly and then continues to keep bright.
5. Repeat steps 2-3 until you have learned all the required learning keys of the TV remote control.
6. If you do not perform any operation after learning, the learning state will automatically exit after about 1 minute. If the learning key cannot operate the TV, repeat Steps 1-3 to learn again.
7. Note: The two remote controls must be kept stable and do not shake when learning operations.

Product specifications:

Support digital audio decoding format…………Dolby Digital(AC3)/DTS/PCM

USB playback audio format…MP3 / APE / FLAC / WAV / DTS / AC3

HDMI input resolution………………3840*2160 (30HZ)

DSP sampling frequency……………………32～192KHz

DSP bit rate……………………16～24 Bit

Digital input level……………………0.1～1V p-p

5.1 Analog output (1kHz@0dB) ………≥1.5V

RMS Signal to noise ratio @0dB (CCIR/ARM)…………≥90dB

Distortion degree…………………………≤0.03%

Frequency response……………………20Hz～20KHz

Maximum working current……………………700mA

Power adapter specifications………………AC 100V-240V 50/60Hz, DC 12V/1A

Working temperature………………………… -10～+60℃

Storage temperature………………………… -20～+60℃

Working humidity…………………… 10～90%RH (non-condensing)

Storage humidity…………………………5～95%RH (no condensation)

Shell size…………………………205mm*68mm*30mm

Net weight………………………………450g

Gross weight…………………………700g

Common fault judgment and treatment methods:

Before turning on the power, carefully check whether the connection line is normal, and ensure that all interfaces are correctly connected. Common fault judgments and treatment methods are as follows:

Failure phenomenon Causes and solutions

No power

1. Check whether the power plug is fully inserted

2. Please check if the POWER button is turned on

No sound/No sound in mono

1. Whether the input signal source is turned on and connected well

2. Confirm whether the signal source channel selection corresponds to the connection line interface

3. Whether the indicator corresponding to the input is flashing, flashing means no signal input

4. Confirm whether the input audio signal format is a format supported by the product

5. Confirm that the power amplifier is turned on and correctly connected to the machine

6. Confirm the volume setting of the decoder and amplifier and whether it has been muted

7. Whether the sound of the signal source device is set to the corresponding output signal.

8. By switching to the Bluetooth mode to play the audio source, connect the speakers FL or FR to the decoder input 6 ports one by one. Check that the decoder output is normal.

9. Check the output mode to ensure the corresponding output. The 5.1 indicator light is on for 5.1 output mode, and the light is off for 2.0 mode. At this time, only FL and FR sound

Noisy/abnormal sound

1. Confirm whether the input audio signal format is the format supported by the product

2. Check whether the wiring of each channel of the decoder’s analog output and power amplifier output is correct

3. Confirm whether the connection cable is intact and connected reliably

No 5.1 surround effect

1. Check whether the playback audio source is 5.1 format or DTS/AC3 format audio source

2. Check whether the sound setting of the playback device is source code output or RAW external decoding output

3. If you use a TV to connect to ARC or fiber coaxial, please set the TV output to RAW data or source code output

Note: The U disk is not recognized? The USB flash drive partition table can be changed to mbr
The original USB flash disk is in MBR format, but now for use in one-button startup installation system, part of the USB flash disk is changed to default GPT(GUI format in partition form). When the decoder device does not recognize GUI format of the USB flash disk, we need to convert the format to MBR format, and the conversion method is as follows (as shown in the figure).
1. DiskGenius is a super hard disk partitioning tool that can switch USB flash drives back to MBR format. (Please refer to the instructions on the original official website carefully to avoid damage to the USB flash drive). DiskGenius website: https://www.diskgenius.cn/download.php
2. After the USB flash drive is connected to the computer, the files in the USB flash drive are copied to the computer’s local hard drive for backup.
3, the reference picture will format the U disk to MBR format, select a partition, FTA32 format.
4. After format conversion. Just copy the audio file to a USB flash drive.