Troubleshooting - Samsung 400UX-2 Service Manual
Chassis: lh40mrp, lh40mrt, lh46mrp, lh46mrt
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Also See for 400UX-2:
- Quick start manual (29 pages) ,
- Specifications (3 pages) ,
- User manual (122 pages)
Table of Contents
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4. Troubleshooting
4-1. Troubleshooting
1.
Before troubleshooting, setup the PC 's display as below.
• Resolution: 1920 X 1080
• H-frequency: 66 kHz
• V-frequency: 60Hz
2.
If no picture appears, make sure the power cord is correctly connected.
3.
Check the following circuits.
• No raster appears: Function PCB, Main PCB, I/P PBA
• 55V develop but no screen: Main PBA
• 5V does not develop: SMPS PBA
After soft power turn off, push the mute → 1 → 8 → 2 → power on and so enter the Service Menu.
4.
If you choose the reset, the monitor automatically returns to factory reset.
4. Troubleshooting
4-1
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