6 blinks - 索尼 电视

中文

含义

LED指示灯闪烁6次，表示T-Con板（Timing Controller Board）或液晶面板故障。T-Con板负责将主板送来的LVDS或V-by-One信号转换为面板驱动信号，其故障会导致显示异常如花屏、白屏、竖线或完全不显示。

常见原因

1. T-Con板上的伽马校正芯片（Gamma IC）损坏，导致灰阶异常
2. T-Con板供电保险管熔断或DC-DC转换器损坏，无法产生面板所需电压
3. T-Con板与面板之间的COF（Chip On Film）排线松动或损坏
4. LVDS/V-by-One信号排线接触不良，导致数据传输出错
5. 液晶面板内部TAB（Tape Automated Bonding）连接老化脱落

自助排查

1. 检查T-Con板与主板、T-Con板与面板之间的排线是否插紧，重新插拔
2. 测量T-Con板上关键测试点的电压（VGH约27V、VGL约-7V、VDD约12V）
3. 观察故障画面特征：如半屏正常半屏异常，通常为COF排线问题
4. 如T-Con板保险熔断，排查后级有无短路；换同型号T-Con板测试

English

Meaning

The LED indicator blinks six times, indicating a T-Con board (Timing Controller) or LCD panel failure. The T-Con board converts LVDS or V-by-One signals from the main board into panel drive signals. A fault here causes display abnormalities such as garbled image, white screen, vertical lines, or no display at all.

Common Causes

1. Gamma correction IC on the T-Con board damaged, causing grayscale anomalies
2. Fuse blown or DC-DC converter failed on the T-Con board, unable to generate required panel voltages
3. COF (Chip On Film) ribbon loose or damaged between T-Con board and panel
4. LVDS/V-by-One signal ribbon cable with poor contact, causing data transmission errors
5. TAB (Tape Automated Bonding) connections aged or detached inside the LCD panel

Self-Check Steps

1. Inspect and reseat all ribbon cables between the main board, T-Con board, and panel
2. Measure key test point voltages on the T-Con board (VGH ~27V, VGL ~-7V, VDD ~12V)
3. Observe the fault pattern — half-good/half-bad display usually indicates COF ribbon issues
4. If the T-Con board fuse is blown, check for downstream shorts before replacing with an equivalent T-Con board