Troubleshooting; Previous Check - Samsung Odyssey G7 LC27G7 T Series Service Manual

4. Troubleshooting

4-1. Previous check

1. Set custom mode as follows before beginning a repair.
Persuasive H-frequency
V-frequency
Resolution Optimal
Resolution
Maximum
resolution
2. If the screen is blank, check whether the power cord is connected correctly.
3. Circuit that needs to be checked
- When nothing is displayed on screen: Function PBA, Main PBA
- When Function light turns on but LED Backlight doesn't come on: LED Driver
- When Backlight turns on but W/R/G/B Test Pattern is displayed: LVDS Cable
4. Press the MENU button and change the brightness and contrast to 0, then press the "JOG button (Enter)" for more than
5 seconds. Monitor will be automatically reset to factory mode.
HDMI : 30 ~ 214 kHz
Display Port : 30 ~ 214 kHz
HDMI : 50 ~ 144 Hz
Display Port : 50 ~ 240 Hz
HDMI : 2560 x 1440 @ 144 Hz
Display Port : 2560 x 1440 @ 144 Hz
HDMI : 2560 x 1440 @ 144 Hz
Display Port : 2560 x 1440 @ 144 Hz
Troubleshooting
4-1