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Defines standard conditions for testing audio performance parameters.
Details performance tests for the FM receiver section.
Details performance tests for Compact Disc Digital Audio (CDDA) playback.
Details performance tests for CD and MP3 playback.
Details performance tests for USB, AUX, and Bluetooth inputs.
Lists parts for the central unit assembly.
Lists parts for the front panel assembly.
Lists parts for the rear unit assembly.
Schematic for the volume control board.
Schematic for the display control board.
Defines standard conditions for testing audio performance parameters.
Details performance tests for the FM receiver section.
Details performance tests for Compact Disc Digital Audio (CDDA) playback.
Details performance tests for CD and MP3 playback.
Details performance tests for USB, AUX, and Bluetooth inputs.
Lists parts for the central unit assembly.
Lists parts for the front panel assembly.
Lists parts for the rear unit assembly.
Schematic for the volume control board.
Schematic for the display control board.
This document is a service manual for the DAEWOO MC-15UBW Micro Component System, which offers a range of audio functionalities including CD, FM radio, USB playback, Audio In, and Bluetooth connectivity. The manual provides detailed information for servicing and maintaining the device, ensuring its optimal performance and longevity.
The MC-15UBW is designed as a versatile audio system, allowing users to enjoy music from various sources. Its core function revolves around playing audio from compact discs, supporting both standard CDs and MP3 files stored on CDs. This provides flexibility for users with extensive music libraries in different formats. The FM radio tuner allows access to local radio broadcasts, offering entertainment and news. The inclusion of a USB port expands playback options, enabling users to connect USB flash drives loaded with their favorite music files. The Audio In feature provides a convenient way to connect external audio devices, such as smartphones, tablets, or older MP3 players, via a standard 3.5mm audio cable. This ensures compatibility with a wide array of personal audio devices.
A key modern feature of the MC-15UBW is its Bluetooth capability. This allows for wireless streaming of audio from Bluetooth-enabled devices, such as smartphones, laptops, or other compatible gadgets. This wireless connectivity enhances user convenience by eliminating the need for physical cables when playing music from personal devices. The system is designed to be a compact and integrated audio solution, suitable for various settings like living rooms, bedrooms, or offices.
From a usage perspective, the MC-15UBW is built for ease of operation. The front panel features a clear LCD display that provides information about the current mode, track, or radio station. A series of buttons and a rotary knob allow for intuitive control over playback, volume, source selection, and radio tuning. Dedicated buttons for functions like "SOURCE," "STOP," "PLAY," "PRE-DOWN," and "PRE-UP" simplify navigation and control. The presence of a headphone jack allows for private listening, while an auxiliary input jack is clearly labeled for connecting external audio sources. The system also includes a remote sensor, indicating that it can be operated remotely, further enhancing user convenience.
The internal design of the MC-15UBW, as depicted in the block diagrams and PCB layouts, suggests a robust and well-organized structure. The main board integrates the core processing unit (MCU), FM tuner, CD servo, USB interface, and Bluetooth module. Separate boards are dedicated to the display and volume control, ensuring modularity and potentially easier servicing. The power supply unit (SMPS) is designed to provide stable power to all components, crucial for consistent audio performance.
Maintenance features are a significant aspect of this service manual. The detailed block diagrams and schematics are invaluable for technicians to understand the interconnections and signal flow within the device. The exploded views of the center, back, and front cabinets provide a clear guide for disassembling and reassembling the unit, which is essential for accessing internal components for repair or replacement. The parts list (BOM) specifies all components, including their material codes, brief descriptions, and quantities, which is critical for ordering spare parts. This comprehensive documentation supports efficient troubleshooting and repair, allowing technicians to identify faulty components and replace them accurately.
The manual also outlines performance specifications and general test conditions for various functions, including FM, CDDA (CD Digital Audio), and CD/MP3 sections, as well as USB, AUX, and Bluetooth. While specific values are provided, the general intent is to ensure that the device operates within defined parameters after any service or repair. This includes checking output load, reference output, input signal source, and modulation characteristics for FM, and various distortion, signal-to-noise, and power output measurements for other audio sources. These tests help confirm that the device meets its design standards and delivers high-quality audio.
In summary, the DAEWOO MC-15UBW is a multi-functional micro component system offering CD, FM, USB, Audio In, and Bluetooth capabilities. Its user-friendly interface, versatile connectivity options, and comprehensive service documentation make it a practical and maintainable audio solution. The manual's focus on detailed diagrams, parts lists, and performance checks underscores its utility for ensuring the device's long-term reliability and performance.
General| Brand | Daewoo |
|---|---|
| Model | MC?15UBW |
| Category | Stereo System |
| Power Output | 15 W |
| Speaker Configuration | 2.0 |
| CD Player | Yes |
| USB Port | Yes |
| FM Radio | Yes |
| Tuner Bands | FM |
| Cassette Deck | No |
| Frequency Response | 20 Hz - 20 kHz |
| Input Voltage | 220V |
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