LG 42PT250B - 42PT250B-SA - PLASMA TV - TROUBLESHOOTING TABLE

Check system, after power Off/On one time.

• Power-Up Boot Fail Trouble Shooting
• No OSD Trouble Shooting
• Digital TV Video Trouble Shooting
• Analog TV Video Trouble Shooting
• Component Video Trouble Shooting
• RGB Video Trouble Shooting
• AV Video Trouble Shooting
• HDMI Video Trouble Shooting
• All Source Audio Trouble Shooting
• Digital TV Audio Trouble Shooting
• Analog TV Audio Trouble Shooting
• Component / RGB / AV Audio Trouble Shooting
• USB Trouble Shooting.

POWER UP - BOOT FAIL

NO OSD

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MODULE CONTROL TROUBLESHOOT

DIGITAL TV VIDEO

ANALOG VIDEO

COMPONENT VIDEO

R-G-B VIDEO

AV VIDEO

HDMI VIDEO

ALL SOURCE AUDIO

DIGITAL TV

ANALOG AUDIO

COMPONENT/RGB/AV AUDIO

USB 

USB power could be disabled by inrushing current.  In this case, remove the device and try to reboot the TV  AC power off/on.