សេចក្តីផ្តើម
This manual provides detailed instructions for the XINYI Sini Audio C50L and C100L Stereo Bluetooth Digital Power Amplifier Boards. These modules offer high-quality stereo audio amplification with versatile input options including Bluetooth 5.0, AUX, U disk, and USB sound card. Featuring a 360-degree stepless tuning rotary encoder and mobile app control, these amplifier boards are designed for enthusiasts and DIY audio projects. Please read this manual thoroughly before installation and operation.
លក្ខណៈបច្ចេកទេស
| លក្ខណៈ | C50L | C100L |
|---|---|---|
| កំណែប៊្លូធូស | 5.0 | 5.0 |
| ឆានែលទិន្នផល | 2.0 (ស្តេរ៉េអូ) | 2.0 (ស្តេរ៉េអូ) |
| ម៉ូដែលបន្ទះឈីប | AP3050D | AP3050D |
| របៀបធ្វើការ | ថ្នាក់ D | ថ្នាក់ D |
| ការបញ្ចូលសំឡេង | Bluetooth 5.0, AUX, U disk Play | Bluetooth 5.0, AUX, U disk, USB Sound Card |
| ថាមពលទិន្នផលដែលបានវាយតម្លៃ | ១០ វ៉ + ១០ វ៉ | ១០ វ៉ + ១០ វ៉ |
| ការឆ្លើយតបប្រេកង់ | 20Hz ទៅ 20KHz | Not specified (typical for Class D) |
| វ៉ុលការងារtage | DC 8V ទៅ DC 26V | DC 5V ទៅ DC 26V |
| Recommended Power Voltage | DC 19V | វ៉ុលខ្ពស់tage for greater output power |
| Fit Speaker Parameters | 4-8 Ohms | 4-8 Ohms, 30-300W |
| Dimensions (with shell) | 56mm * 50mm * 18mm | 58mm * 53mm * 18mm |
| ទំងន់សុទ្ធ | ប្រហែល 61 ក្រាម។ | 70 ក្រាម។ |
| ចម្ងាយបញ្ជូន | 15m (គ្មានការរំខាន) | 15m (គ្មានការរំខាន) |
| ការលៃតម្រូវកម្រិតសំឡេង | Encoder 360-degree stepless tuning | Encoder 360-degree stepless tuning |
| លទ្ធផលអូឌីយ៉ូ | អូប៉ាល័រអកម្ម | Passive speaker + 3.5mm |
| តម្រងលទ្ធផល | Filter free | Filter free |
| របៀបបញ្ចេញកំដៅ | Heat sink + shell | Heat sink + shell |
| យន្តការការពារ | Power reverse connection, short circuit, self-recovery overheating protection | Power reverse connection, short circuit, self-recovery overheating protection |
Power Output vs. Voltage (C100L)
- 12V: 8 Ohm 12W + 12W, 4 Ohm 22W + 22W
- 19V: 8 Ohm 28W + 28W, 4 Ohm 55W + 55W
- 22V: 8 Ohm 37W + 37W, 4 Ohm 72W + 72W
- 24V: 8 Ohm 51W + 51W, 4 Ohm 100W + 100W
មាតិកាកញ្ចប់
កញ្ចប់ជាធម្មតារួមបញ្ចូលសមាសធាតុដូចខាងក្រោមៈ
- XINYI Sini អូឌីយ៉ូ Amplifier Board (C50L or C100L)
- DC Power Adapter (Free DC adapter)
- Heat Sink (Free heat sink)
- វីស M2
- M2x13 or M2x14 Copper Columns
- Knob Cap
- Screwdriver (for DIY kit assembly)
Note: If you purchased the DIY kit, the outer casing is a material package and requires self-assembly.
ការណែនាំអំពីការដំឡើង
1. Assembly (for DIY Kits)
If you received a DIY kit, assemble the casing and components as follows:
- Attach the heat sink to the chip using the provided 3M thermal adhesive tape. Ensure good contact for effective heat dissipation.
- Mount the circuit board using the M2 screws and copper columns.
- Install the knob cap onto the rotary encoder.


2. ការតភ្ជាប់ថាមពល
- Connect a DC power supply (8V-26V for C50L, 5V-26V for C100L) to the DC-IN port. A 19V DC power supply is recommended for optimal performance.
- Ensure the power supply's current output is sufficient for your speakers (e.g., for an 8 ohm 50W speaker, use a 24V power supply with at least 4A). Insufficient current can lead to sound issues.
- Do NOT exceed 26V, as this may damage the circuit board.
២.២. ការតភ្ជាប់វាគ្មិន
- Connect your passive speakers to the SPKL (Left) and SPKR (Right) terminals. Pay attention to polarity (+ and -).
- For active speakers, use the 3.5mm audio output jack (C100L only).


សេចក្តីណែនាំប្រតិបត្តិការ
1. Power On/Off and Standby
- បើកថាមពល៖ Long press the volume knob to turn the device on.
- Power Off/Standby: Long press the volume knob to put the device into standby mode (low power consumption). For complete power off, unplug the DC power adapter.
2. ការគ្រប់គ្រងកម្រិតសំឡេង និងការចាក់សារថ្មី។
- ការលៃតម្រូវកម្រិតសំឡេង៖ Rotate the volume knob for 360-degree stepless volume tuning.
- លេង/ផ្អាក៖ Short press the volume knob to play or pause audio playback.
3. Audio Input Modes
នេះ។ amplifier supports multiple audio input sources:
- របៀបប៊្លូធូស៖ The product defaults to Bluetooth mode if no other external audio device is connected.
- ការបញ្ចូល AUX៖ Insert an AUX cable into the AUX IN port. The amplifier will automatically switch to AUX playback. If an AUX cable is inserted during Bluetooth playback, it will switch to AUX immediately.
- U Disk Playback៖ Insert a U disk (formatted as FAT32, max 32GB) into the USB port. The amplifier will automatically switch to U disk playback.
- USB Sound Card Input: ភ្ជាប់ amplifier to a computer via the USB port. Most computers will automatically recognize it as a sound card. If not, you may need to manually select it in your computer's audio settings.
Audio input modes can also be conveniently switched via the mobile APP.
4. ប៊្លូធូសផ្គូរ
- Ensure the Bluetooth board is powered on. The blue LED will flash quickly, indicating it's in Bluetooth connection mode.
- On your mobile phone, search for Bluetooth devices and select "XinYi" to connect.
- Once connected, the blue LED will enter a long light state.
- Start playing music on your phone. The blue LED will then flash slowly, indicating playback.

ការគ្រប់គ្រងកម្មវិធីទូរស័ព្ទ
នេះ។ amplifier supports control via the Sinilink mobile application, available for both Android and iOS systems. The app provides visual operation for playback mode, volume, sound effects, and song control.
- ទាញយក៖ ស្វែងរក 'Sinilink' in the Google Play Store (for Android) or Apple App Store (for iOS).
- ការអនុញ្ញាត៖ When using the app, ensure all necessary app permissions are granted in your phone's settings. Failure to do so may cause compatibility issues and prevent Bluetooth connection.
- សេវាកម្មទីតាំង៖ You must turn on the location information of your phone when using the APP for proper functionality.


ថែទាំ
- រក្សា amplifier board in a dry environment to prevent moisture damage.
- Clean the board gently with a soft, dry cloth. Avoid using liquids or abrasive cleaners.
- For long-term storage or if not in use for an extended period, unplug the DC power adapter to completely cut off power.
ការដោះស្រាយបញ្ហា
1. No Sound or Weak Sound
- ការផ្គត់ផ្គង់ថាមពលមិនគ្រប់គ្រាន់៖ The output power of the power supply must be greater than the output power of the amplifier. If the current is too small (e.g., for an 8 ohm 50W speaker, a 24V power supply needs at least 4A), the sound may become stuck or weak. Increase the power supply current or reduce the volume/output power.
- Ticking Sound: If the speaker makes a ticking sound when powered on but no audio plays, it indicates insufficient power supply. Increase the power supply.
- "Hiccup" Phenomenon: If the music playback experiences a "hiccup" phenomenon, first check if the power supply is insufficient. A larger power supply may be needed. Secondly, it could be due to overheating protection; strengthen heat dissipation or reduce the playback volume.
2. បញ្ហានៃការតភ្ជាប់ប៊្លូធូស
- Signal Problems: The product uses a PCB antenna. The visible connection distance is up to 15 meters without obstruction. If you cannot find or connect to Bluetooth, it may be a signal problem.
- ការជ្រៀតជ្រែក៖ Stay away from routers or other strong signal sources when using Bluetooth.
- Metal Shielding: ប្រសិនបើ amplifier is placed on a metal surface, the metal may affect the PCB antenna signal. If using a metal enclosure, ensure the antenna is pulled out of the shell to prevent signal shielding.
- ការអនុញ្ញាតកម្មវិធី៖ When using the mobile app, ensure all app permissions and location services are enabled in your phone's settings.
3. Power-Related Damage
- លើសtage: វ៉ុលផ្គត់ផ្គង់ថាមពលtage must not exceed 26V. Voltages higher than 26V will burn the circuit board.
ព័ត៌មានជំនួយអ្នកប្រើ
- Always ensure your power supply is adequate for your speakers to prevent sound distortion or damage. A higher current rating on your power supply is generally better, as long as the voltage គឺស្ថិតនៅក្នុងជួរដែលបានបញ្ជាក់។
- For optimal Bluetooth performance, keep the amplifier in an open area and away from other electronic devices that might cause interference.
ការធានា និងការគាំទ្រ
For any issues or questions not covered in this manual, please contact the seller or manufacturer for support. Keep your purchase records for warranty claims.





