E004 - 海信 电视

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

1. T-con 板主控 IC 损坏
2. LVDS 排线松动或断裂
3. T-con 板供电回路短路
4. EEPROM 存储数据损坏
5. 散热不良导致 T-con 板过热

自助排查

1. 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。
2. 目视检查 T-con 板表面元件有无烧焦、裂纹或鼓包。
3. 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。
4. 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。
5. 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

1. T-con board main IC damaged
2. LVDS ribbon cable loose or broken
3. T-con board power rail short circuit
4. EEPROM data corruption
5. T-con board overheating due to poor ventilation

Self-Check Steps

1. First check the LVDS ribbon cable from the main board to the T-con board; reseat both ends firmly.
2. Visually inspect the T-con board surface for burnt components, cracks, or bulging capacitors.
3. Touch the T-con main IC to check for excessive temperature; overheating suggests a possible short circuit.
4. Measure the T-con board supply voltage (normally 12V or 5V); if abnormal, check the main board power supply.
5. If cables and power are normal, the T-con board itself is likely faulty; replace the T-con board.