LG 42PT250B Service Manual page 33

Trouble Shooting Guide for LG Service Man
Please check system, after power Off/On one time
1. Power-Up Boot Fail Trouble Shooting
2. No OSD Trouble Shooting
3. Digital TV Video Trouble Shooting
4. Analog TV Video Trouble Shooting
5. Component Video Trouble Shooting
6. RGB Video Trouble Shooting
7. AV Video Trouble Shooting
8. HDMI Video Trouble Shooting
9. All Source Audio Trouble Shooting
10. Digital TV Audio Trouble Shooting
11. Analog TV Audio Trouble Shooting
12. Component / RGB / AV Audio Trouble Shooting
13. HDMI Audio Trouble Shooting
14. USB Trouble Shooting
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