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General| Screen Size | 55 inches |
|---|---|
| Display Type | OLED |
| Smart TV | Yes |
| HDMI Ports | 4 |
| USB Ports | 3 |
| Refresh Rate | 120 Hz |
| Operating System | webOS |
| Processor | α9 Gen5 AI Processor 4K |
| Resolution | 3840 x 2160 |
| HDR | HDR10, Dolby Vision, HLG |
| Bluetooth | Yes (5.0) |
General safety guidelines for servicing the chassis and replacing parts.
Advice on using isolation transformers and handling fuses during servicing.
Procedure for measuring AC leakage current to ensure safety.
Lists general technical specifications like market, broadcast system, screen size, aspect ratio, etc.
Enumerates various adjustments like EDID, White Balance, and ADC checks.
Instructions for downloading security keys and MAC addresses for specific models.
Step-by-step instructions for downloading EDID data via the adjustment remote.
Explains the objective and working principle of White Balance adjustment.
How to select country-specific options using the adjustment remote.
Preparation and procedure for GND and internal pressure auto-check.
Step-by-step guide to check the EYE-Q sensor functionality and back-light behavior.
Describes how to input a 3D test signal and check patterns without glasses.
Equipment and method for manual ADC calibration for various input modes.
Adj. conditions, cautionary items, equipment, and adjustment steps for manual white balance.
Safety notice regarding critical parts identified by delta symbol in diagrams.
Circuit diagram and options for IR Blaster.
Block diagram of the Main SoC and its connection to the Tuner.
Block diagram showing audio path from MICOM to MAIN IC and speaker output.
Block diagram of Main SoC and HDMI switch connections.
Block showing Main Micom connections for IR and I2C.
Block diagram of the USB Hub.
Block for IR Blaster Micom and its SPI connections.
Check EDID/EEPROM in HDMI SW IC and re-download data.
Troubleshooting steps for no video or normal audio issues.
Troubleshooting steps for no video and no audio issues.
Troubleshooting steps for picture breaking or freezing.
Troubleshooting steps for color reproduction errors.
Troubleshooting for vertical/horizontal bars, residual image, or light spots.
Troubleshooting steps for the 'No power' error symptom.
Troubleshooting for power issues like auto power off or unexpected shut downs.
Troubleshooting steps for no audio or normal video issues.
Troubleshooting for distorted audio, dropouts, or noise.
Troubleshooting for remote control and local switch operational errors.
Troubleshooting for motion remote (Bluetooth) operating issues.
Troubleshooting for errors related to external device recognition.
Troubleshooting for circuit noise and mechanical noise issues.
Troubleshooting for external defects like module or cabinet damage.
Troubleshooting for screen errors related to external devices and color.
Checks for no video/normal audio, including backlight and LED driver.
Checks for no video/audio, including power board voltage.
Check Wi-Fi cable and 5V on terminal.
Check and adjust white balance using EZ ADJUST menu.
Measure power board voltages for 24V, 12V, 3.5V.
Check tuner part and signal strength.
Check screen condition by signal for external inputs.
Use ADJ Key to view test patterns for color error diagnosis.
Check power on pin status when power is ON.
Check POWER OFF MODE settings via IN-START menu.
Check power board voltage and speaker connection.
Check IR cable, ST-BY voltage, and remote operation.
Check motion cable and 3.3V on terminal.
Method to change tool options using USB memory and password.
