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长虹 PF2189彩电采用飞利浦超级芯片TDA9370,该芯片将 CPU 和小信号处理等电路集成在同一个芯片之内,该彩电系属长虹 CH—16机心,然而机心虽同,但若机型不同,I~2C 总线维修状态数据会有很大的差别。本文将维修过程中实测结果和发现的一些特殊功能作以介绍,以供同行参考。一、I~2C 总线维修状态的进入、调整和退出开机收视条件下,按遥控器“音量-”键,使音量为“0”,然后按遥控器“静音”键不放、同时再按电视机上“菜单”键,即可进入 I~2C 总线维修状态。用遥控器“节目+”键或“节目-”键,顺序或逆序选择项目“名称”;
Changhong PF2189 color TV with Philips super chip TDA9370, the chip will CPU and small signal processing circuit integrated in the same chip, the color system is Changhong CH-16 movement, however, although the same movement, but if the different models, I ~ 2C bus maintenance status data will be very different. This article will test the results of the maintenance process and found that some of the special features to introduce for peer reference. First, I ~ 2C bus maintenance status of the entry, adjustment and exit boot viewing conditions, press the remote control “volume -” key, the volume is “0”, and then press the remote control “mute” button, and then press the TV Machine “menu” button, you can enter the I ~ 2C bus maintenance status. Use the remote “program +” key or “program -” key, in order or reverse order to select the item “name”;