SAMSUNG TV Q60A QLED LINES ON SCREEN General Troubleshooting

LCD Cell / Panel Assembly

The Q60A series frequently experiences internal failures of the LCD gate drivers or tab bonds. This manifests as persistent horizontal or vertical lines that are physically located within the panel layers and cannot be repaired at the component level. Replacing the full panel assembly is the only certified fix for this internal structural failure.

Main Logic Board

The Main Board serves as the image processor and T-CON (Timing Controller) in many Q60A variants. A malfunction in the video processing chip or a failure in the LVDS (Low-Voltage Differential Signaling) output stage can result in distorted data being sent to the panel, which may appear as vertical lines or artifacts.

Internal LVDS/FFC Ribbon Cables

These cables facilitate the high-speed data transfer between the Main Board and the panel source boards. If the connections become oxidized or if the flexible flat cable (FFC) develops a micro-crack, it can interrupt specific data lanes, leading to vertical lines on specific sections of the screen.