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General| Brand | LG |
|---|---|
| Model | CJ44 |
| Category | Stereo System |
| Type | Mini Hi-Fi System |
| Bluetooth | Yes |
| CD Player | Yes |
| USB Playback | Yes |
| FM Radio | Yes |
| Karaoke Function | Yes |
| Remote Control | Yes |
| Audio Input | Yes |
| Speaker Configuration | 2.0 Channel |
Guidelines for safe handling, transport, and repair of the unit and its components.
Procedures and warnings to prevent damage from electrostatic discharge.
Instructions and tables for accessing special operational modes.
Procedures for accessing and managing EEPROM data for service.
Step-by-step guide for downloading firmware updates using USB.
Detailed steps for performing firmware updates using the Bluetooth application.
Technical specifications, including power, dimensions, and operating parameters.
Visual diagrams showing the assembly and components of the unit.
Step-by-step guide for disassembling the unit for servicing.
Troubleshooting guide for common single-point failure issues.
Detailed guide for diagnosing and resolving electrical problems in the unit.
Oscilloscope waveform examples for key signal points during troubleshooting.
Diagram illustrating the wiring connections between internal components.
High-level diagrams showing the functional blocks and data flow.
Table of typical voltages for ICs, connectors, and capacitors.
Diagrams showing the layout of components on the main circuit boards.
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