中文
含义
创维电视检测到背光系统故障，E1 代码表示 LED 背光灯条回路异常。背光驱动 IC 检测到灯条电流低于正常工作阈值，判定为灯条开路或驱动电路失效。电视可能有声音但屏幕完全黑屏或极暗，无法正常观看。
常见原因
- LED 灯条中一颗或多颗灯珠烧毁开路，导致整条灯条回路断开。
- 背光驱动板上的升压电路或恒流芯片损坏，无法提供灯条所需驱动电压和电流。
- 灯条连接器（CN1/CN2）插头松动或接触不良，氧化导致接触电阻增大。
- 主板与电源板之间的背光开关信号（BL-ON）或调光信号（PWM）失效，驱动板未收到开启指令。
- 灯条长期在高亮度下工作，灯珠结温过高导致焊点融化虚焊或灯珠加速老化。
自助排查
- 断电完全拔掉电源线，等待 3-5 分钟后重新通电开机，排除偶发性保护误触发。
- 用手电筒贴近屏幕照射，在暗环境下观察是否有微弱图像——有图像无背光可确认背光故障。
- 检查画面菜单中背光亮度设置是否被意外调至最低，尝试恢复出厂画面设置。
- 观察屏幕是否有局部暗区或整体不亮——局部暗斑对应单条灯条故障，全黑则可能为驱动板问题。
- 背光维修需要打开面板，操作风险高，建议联系创维售后服务由专业人员处理。
English
Meaning
The Skyworth TV has detected a backlight system fault. Code E1 indicates an abnormal LED backlight strip circuit. The backlight driver IC has detected that the strip current is below the normal operating threshold, identifying an open circuit or driver failure. The TV may still produce sound but the screen is completely black or extremely dim.
Common Causes
- One or more LED beads on the backlight strip have burned out and opened the circuit, disconnecting the entire strip.
- The boost converter or constant-current chip on the backlight driver board has failed, unable to supply the required drive voltage and current.
- The strip connectors (CN1/CN2) are loose or oxidized, causing increased contact resistance.
- The backlight on/off signal (BL-ON) or dimming PWM signal from the main board to the power board has failed, so the driver board never receives the enable command.
- Prolonged use at high brightness has kept LED junction temperatures elevated, causing solder joint failure or accelerated LED degradation.
Self-Check Steps
- Unplug the TV completely, wait 3-5 minutes, then reconnect and power on to rule out transient false protection.
- In a dark room, shine a flashlight close to the screen and check for a faint image — visible image with no backlight confirms a backlight fault.
- Check the backlight brightness setting in the picture menu; it may have been set to minimum. Try resetting the picture settings to factory defaults.
- Observe whether the screen is partially dim or completely dark — localized dimming usually points to a single faulty strip, while full darkness suggests driver board failure.
- Backlight repair requires panel disassembly and carries high risk. Contact Skyworth after-sales service for professional assistance.