1. Киришүү
The Nobsound Little Bear MC102 is a compact, passive 3.5mm stereo audio selector designed to manage multiple audio sources and outputs. This device allows users to switch between two audio inputs to one output, or one audio input to two outputs, without requiring external power. Its passive design ensures no impact on sound quality.

Image 1: The Nobsound Little Bear MC102 Mini Stereo Audio Selector.
2. Продукттун өзгөчөлүктөрү жана компоненттери
The MC102 features a straightforward design for ease of use. Key components include:
- A Input Jack: Connects to an audio source or output.
- B Input Jack: Connects to a second audio source or output.
- IN/OUT Jack (Priority): Main audio input or output port.
- A,B Input Selector: Button to switch between A and B channels.
- Үндү көзөмөлдөө: Rotary knob to adjust audio output level.
- Үнсүз баскычы: Instantly mutes the audio output.
- New 3.5mm Port (between A and B): An additional input/output port for convenience, though the main IN/OUT port has priority.

Сүрөт 2: Алдыңкы панелдин үстүндөview of the MC102 with labeled input/output jacks, selector, volume control, and mute button.

3-сүрөт: Үстү жана асты views of the MC102, illustrating the internal layout and port arrangement.
3. Орнотуу жана туташуу
The MC102 offers flexible connection options for various audio setups. Ensure all devices are powered off before making connections.
3.1. 2-IN-1-OUT Configuration
This configuration allows you to connect two audio sources to the MC102 and select one to output to a single audio device (e.g., active speakers, headphones).
- Connect your first audio source (e.g., CD player, computer) to the Киргизүү уясы.
- Connect your second audio source (e.g., smartphone, tablet) to the B Input Jack.
- Connect your audio output device (e.g., active speakers, headphones) to the IN/OUT Jack.

Image 4: Connection diagram for 2-IN-1-OUT setup. Two audio sources (computer, smartphone) connect to A and B inputs, and the output (headphones or speakers) connects to the IN/OUT port.
3.2. 1-IN-2-OUT Configuration
This configuration allows you to connect one audio source to the MC102 and output the audio to two different audio devices (e.g., headphones and active speakers), selecting which one is active.
- Connect your audio source (e.g., computer, smartphone) to the IN/OUT Jack.
- Connect your first audio output device (e.g., active speakers) to the Киргизүү уясы.
- Connect your second audio output device (e.g., headphones) to the B Input Jack.

Image 5: Connection diagram for 1-IN-2-OUT setup. One audio source (computer) connects to the IN/OUT port, and two output devices (speakers, headphones) connect to A and B inputs.
4. Иштөө нускамалары
Once connected, operating the MC102 is straightforward:
- Selecting Input/Output: басыңыз A/B Input Selector button to toggle between the A and B channels. The active channel will be indicated by the button's position.
- Үндү тууралоо: айлантыңыз Үндү көзөмөлдөө үндү катуулатуу үчүн баскычты саат жебеси боюнча, ал эми азайтуу үчүн саат жебесине каршы басыңыз.
- Үнсүз функция: басыңыз Үнсүз баскыч to instantly silence the audio output. Press it again to unmute.
5. Important Notes and Considerations
Please observe the following important notes for optimal performance and compatibility:

Image 6: Important notes for the MC102, detailing specific usage conditions and features.
- Upgraded Components: The MC102 Black version features customized potentiometers and isolation modules designed to minimize potential volume adjustment issues and background noise.
- Turntable Incompatibility: The MC102 is not compatible with turntables directly. PHONO signals are typically too low, resulting in lower than usual output. Direct connection may not work effectively.
- Пассивдүү динамик байланышы: This device cannot be connected directly to passive speakers. To use with passive speakers, you must connect your sound source to a preamplifier, then to the MC102, and finally to active speakers. Alternatively, connect your sound source to the MC102, then to an amplifier, and finally to passive speakers.
- New 3.5mm Port: A new 3.5mm port has been added between the original A and B ports for user convenience, allowing all cables to be connected on one side. However, the opposite 3.5mm port (the main IN/OUT port) still has priority over this new port.
6. Техникалык тейлөө
To ensure the longevity and optimal performance of your Nobsound Little Bear MC102, follow these maintenance guidelines:
- Тазалоо: Түзмөктүн сыртын тазалоо үчүн жумшак, кургак чүпүрөктү колдонуңуз. Суюк тазалоочу каражаттарды же эриткичтерди колдонуудан алыс болуңуз, анткени алар капталына же ички компоненттерине зыян келтириши мүмкүн.
- Курчап турган чөйрө: Store and operate the device in a dry, dust-free environment. Avoid exposure to extreme temperatures, humidity, or direct sunlight.
- Колдонуу: Аппаратты этияттык менен колдонуңуз. Аны түшүрүүдөн же катуу таасирлерден сактаныңыз.
- Байланыштары: Кабелдик туташуулар коопсуз жана бузулбашы үчүн мезгил-мезгили менен текшерип туруңуз.
7. Кыйынчылыктарды
If you encounter issues with your MC102, refer to the following troubleshooting steps:
- Үн чыгышы жок:
- Verify all audio cables are securely connected to the correct ports on the MC102 and your audio devices.
- Ensure the volume control knob on the MC102 is not set to minimum.
- Check if the mute button is engaged. Press it to disengage.
- Confirm that your audio source device is playing audio and its volume is adequately set.
- If using the 1-IN-2-OUT configuration, ensure the correct output channel (A or B) is selected.
- Humming or Background Noise:
- Бардык кабелдердин жакшы абалда экенин жана тийиштүү түрдө корголгонун текшериңиз.
- Try using different audio cables to rule out faulty cabling.
- Disconnect other electronic devices that might be causing interference.
- As a passive device, the MC102 relies on the quality of the input signal. If the source signal is noisy, the output will reflect this.
- Low Volume Output:
- Increase the volume on both your audio source device and the MC102.
- Ensure you are not attempting to connect a turntable directly, as the PHONO signal level is too low for this passive device.
- If connecting to passive speakers, confirm that an external amplifier is used, as the MC102 does not provide ampжашоо.
8. Техникалык шарттар
The following are the technical specifications for the Nobsound Little Bear MC102 Mini Stereo Audio Selector:
| Өзгөчөлүк | Спецификация |
|---|---|
| Модель номери | GFJ556 |
| Бренд | Nobsound |
| Type | Passive Audio Selector / Splitter |
| Туташтыргыч түрү | 3.5 мм Jack |
| Порттардын саны | 2 (A, B) + 1 (IN/OUT) + 1 (New Central) |
| Өлчөмдөрү (L x W x Y) | 8.2 x 5.5 x 2 см (болжол менен) |
| Түс | Кара |
| Шайкеш түзмөктөр | Satellite receiver, laptop, television, smartphone (partial list) |
| Power талап | None (Passive Device) |

Image 7: Packing list and dimensions of the MC102. Net Weight: 100g/0.22lb, Package Weight: 200g/0.44lb.
9. Кепилдик жана колдоо
For warranty information, technical assistance, or customer support regarding your Nobsound Little Bear MC102, please refer to the manufacturer's official webсайтына кириңиз же алардын кардарларды тейлөө бөлүмүнө түз кайрылыңыз. Кепилдик боюнча дооматтар үчүн сатып алуунун далили катары сатып алуу квитанцияңызды сактап коюу сунушталат.