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General| Screen Size | 55 inches |
|---|---|
| Display Technology | LED |
| HDR | Yes |
| Smart TV | Yes |
| Operating System | Firefox OS |
| HDMI Ports | 3 |
| USB Ports | 3 |
| Built-in Wi-Fi | Yes |
| Bluetooth | No |
| Resolution | 3840 x 2160 |
| Audio Output | 20W |
General guidelines for servicing, covering lead dress, protective devices, and cover labels.
Procedures for checking touch current to prevent shock hazards using a measuring network.
Lists recommended types of lead-free solder for repairs and their specifications.
Identifies and describes the main circuit boards (A-Board, P-Board, K-Board) within the chassis.
Step-by-step instructions and diagrams for removing the TV's pedestal assembly.
Instructions for removing the back cover, detailing screw locations and types.
Detailed steps for preparing to replace the LCD panel, including bezel removal.
Instructions for assembling the LCD panel with the cabinet, including screw details.
Details the audio output power, headphone impedance, and related accessories.
Provides physical dimensions and weight of the TV, with and without the stand.
Details key specifications and requirements for various content protection and streaming services.
Procedures for replacing MTK IC (IC8000) and eMMc (IC8920) and generating KEY data.
Table mapping model numbers to supported keys for various features like DTCP-IP, HDCP, etc.
Information on recording digital TV programs to USB HDD and the role of C2MOD key.
Lists test points and expected voltages for the A-board and P-board for verification.
Steps to access the CS Maintenance Menu using specific button sequences on the remote.
Instructions on how to exit the CS Maintenance Menu.
How to select and adjust OPT settings within the CS Maintenance Menu using remote control.
Procedure to adjust EDID Clock settings within the CS Maintenance Menu via remote.
Steps to perform a drive check for USB HDD within the CS Maintenance Menu.
Procedure for White Balance adjustment within the CS Maintenance Menu, covering gain and color temp.
Instructions on how to access the System Information menu from the main menu.
Instructions on how to exit the System Information display.
Explains the purpose of Hotel Mode and the specific button sequence for menu access.
Instructions on how to exit the Hotel mode.
Explains the various settings and options available within the Hotel mode setup menu.
Explains the purpose of data copy via USB for board replacement or hotel installations.
Steps to prepare a USB memory stick by creating a startup file (pwd file) for data copying.
Instructions on how to access self-check indications and force factory settings.
Instructions on how to exit the self-check mode.
Explains the purpose of the LCD Panel Test Mode for diagnosing picture issues.
Steps to enter the LCD Panel Test Mode using remote control commands.
Instructions on how to exit the LCD Panel Test Mode.
Method for confirming the cause of abnormal picture after running test patterns.
Notes on how test patterns are created and their implications for diagnosis.
Explains items marked RTL, indicating limited availability after production discontinuation.
Explains abbreviations used for resistors and capacitors, including type and allowance codes.
