What to do if SDA, SCL for effective 3.3Vdc (after power on) is missing on Samsung UN55NU710DF?
If the SDA or SCL for effective 3.3Vdc is missing after powering on your Samsung UHD TV, suspect the Function Assy, Cable Assy, or Main Assy.
What to do if Samsung UHD TV shows wrong voltage or no change?
If your Samsung UHD TV shows the wrong voltage or no change, check the switch for being stuck or miss-operation.
What to do if Key_Input 1 Pin 6 change is missing in Samsung UN55NU710DF?
If the Key_Input 1 Pin 6 is missing on your Samsung UHD TV, change it to 0V with a command.
What to do if LED is OFF on Samsung UN55NU710DF UHD TV?
If the LED is OFF on your Samsung UHD TV, suspect the Function Assy, Cable, or Main board.
General safety, servicing, and ESD precautions to prevent hazards.
Precautions to follow when servicing the unit.
Step-by-step guide for disassembling the TV, including rear cover and boards.
Troubleshooting power-related issues like standby, SMPS, and backlight tests.
Troubleshooting video issues using picture tests, test patterns, and board checks.
Steps to replace the main board and manually input factory options.
General| Screen Size | 55 inches |
|---|---|
| Resolution | 3840 x 2160 (4K UHD) |
| Display Technology | LED |
| HDR | HDR10+ |
| Smart TV | Yes |
| Operating System | Tizen |
| Audio Output | 20W |
| HDMI Ports | 3 |
| USB Ports | 2 |
| Refresh Rate | 60Hz |
| Wi-Fi | Yes |
| Ethernet | Yes |
| Bluetooth | No |
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