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DM6437+TVP5158低温开机异常

Other Parts Discussed in Thread: TVP5158

常温下使用TVP5158做四输入及一组CIF的数字输出至DM6437,并做AV输出,常温下开机时间约为5秒,影像输出质量正常,但在零下10度冷启 动时,开机时间延为10秒,开机后保持5秒绿画面才有影像输出,且横条状绿色噪声非常多,约过10分钟后噪声才渐渐消除,请问这种低温开机的现象有解吗?