LED灯板通用检验标准

1.1灯常态检查:参照对应灯板点亮的电压和电流,点亮灯板,有LED不亮则判定NG;

OK

NG

1.2小电流检查:电压不变,将电流调节至10mA,有个别LED比其他LED灯珠亮度更高,则判定NG

OK

NG

2.外观检查:

2.1灯珠不能有锡珠覆盖在PCB上.灯珠不能偏位不能超过焊盘0.5mm.

NG

OK

锡珠

NG

OK

2.2灯珠不能翘起.高于其他LED 0.8mm,判定为NG.;

NG

OK

2.3焊盘虚焊,判定为NG;   

OK

NG

2.4PCB元器件在应有位置元器件缺失,判定为NG;应有元器件参照BOM为准.

OK

NG

       2.5 PCB不能有发泡现象,有则判定为NG,同批PCB过完回流焊不能有色差,有则判定为NG;

NG

NG

2.5LED灯不能有贴反的情况,有则判定为NG;

OK

NG

OK

OK