1.Phenomenon:
The screen lacks color,or there are R/G/B color stripes under the tone screen
2.Reason:
1. LVDS connection is bad,solution:replace LVDS connector
2. The RX resistor is missing/burned,the solution: change the RX resistor
3. ASIC (Integrated Circuit IC) NG,solution:change ASIC
1. Appearance to confirm whether the LVDS matching resistor is intact.
2. Confirm whether the LVDS connector is OK,you can press the LVDS cable lightly,if the screen changes or OK,it means that the LVDS conn.is bad.
3. If all the above are OK,measure the LVDS voltage value.Under normal circumstances,the voltage value of LVDS signal to Rx+/RX- is about 1.2V,and the difference between RX+/RX- is about 200mV;at the same time,it can measure the resistance of LVDS signal to ground and LVDS Resistance between signal pairs (100 ohms); if there is an abnormality in these values, try to replace the ASIC.
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Post time: May-18-2023
