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例1 故障现象:创维8000—2522A型彩电,无伴音、行幅过大。分析与检修:鉴于此机“无伴音、行幅过大”两个故障同时存在,怀疑是该机I~2C总线有问题。为了快速判断故障部位,决定先调整该机I~2C总线数据,但查遍手头资料无该机型I~2C总线数据,试把该机遥控器拆开发现与伴音制式并排的最左边有一个按键,试按该键则进入维修状态,按压“节目”键可调整项目,按“音量”键可调整数据。调出菜单发现MODE4中AUDIO(伴音)
Example 1 Symptom: Skyworth 8000-2522A color TV, no sound, the line is too large. Analysis and Maintenance: In view of this machine “no sound, oversize lines ” two faults exist at the same time, it is suspected that I ~ 2C bus there is a problem. In order to quickly determine the fault location, I decided to first adjust the machine I ~ 2C bus data, but overriding data without this type I ~ 2C bus data, try to open the remote control and the sound system side by side with a left Press the button, press the button to enter the maintenance status, press “Program” key to adjust the item, press “Volume” key to adjust the data. Recall the menu found in MODE4 AUDIO (sound)