Hardware Troubleshooting; Lcd - Samsung 70G7C Service Manual

4.5. Hardware Troubleshooting

4.5.1. LCD

1. The screen is dark or the colors of the screen are distorted.
1) Check the connection status
• LCD Module LCD Cable
• LCD Cable and Main board LCD Connector
→ Connect Cable and Connector perfectly
2. Replace the LCD cable
3. Check if there is a part of the LCD that is bent or broken
due to impact
→ Replace the LCD
2. No picture appears on the screen.
1) Check the connection status
• LCD Module LCD Cable
• LCD Cable and Main board LCD Connector
→ Connect Cable and Connector perfectly
→ LCD cable replace
2. Check if the System LED of the main board is blinking
3. Check if the memory module is out of order
4. Check if the Power button can be normally pressed.
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Defectiveness confirmation
Re-fixation or Replacement other Memory Card .
Check operating or not
4. Trouble shooting
4-8