中文
含义
E004 为时序控制器(T-con)板故障。T-con 板负责将主板信号转换为面板可识别的时序信号,故障时会导致花屏、白屏、黑屏或画面撕裂。
常见原因
- T-con 板主控 IC 损坏
- LVDS 排线松动或断裂
- T-con 板供电回路短路
- EEPROM 存储数据损坏
- 散热不良导致 T-con 板过热
自助排查
- 首先检查主板至 T-con 板的 LVDS 排线是否插牢,两端重新插拔确认。
- 目视检查 T-con 板表面元件有无烧焦、裂纹或鼓包。
- 用手触摸 T-con 板主 IC 温度是否异常过高,如过热说明可能存在短路。
- 测量 T-con 板供电电压(一般为 12V 或 5V),如不正常需排查主板供电。
- 若排线及供电正常,T-con 板本身故障可能性大,建议更换 T-con 板。
English
Meaning
Timing controller (T-con) board failure. The T-con board converts main board signals into timing signals the panel can interpret. Failure leads to scrambled display, white screen, black screen, or screen tearing.
Common Causes
- T-con board main IC damaged
- LVDS ribbon cable loose or broken
- T-con board power rail short circuit
- EEPROM data corruption
- T-con board overheating due to poor ventilation
Self-Check Steps
- First check the LVDS ribbon cable from the main board to the T-con board; reseat both ends firmly.
- Visually inspect the T-con board surface for burnt components, cracks, or bulging capacitors.
- Touch the T-con main IC to check for excessive temperature; overheating suggests a possible short circuit.
- Measure the T-con board supply voltage (normally 12V or 5V); if abnormal, check the main board power supply.
- If cables and power are normal, the T-con board itself is likely faulty; replace the T-con board.