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迄今为止,电路调整的方法均限于用诸如半固定式可变电阻的调节而进行。然而,夏普W328彩电的电路调整则是通过I~2C总线控制而实现。即通过遥控器向集成电路发送调整数据,并控制其调整的准确无误。该机的所有调整数据均预先存储于IC1004(E~2PROM)记忆装置之中,此外,IC1001(CPU)中还存储有标准数据(初始值)于下述场合,且必须用I~2C总线控制进行调整。其理由是:IC1004发生故障,将造成调整数据丢失。
Until now, the methods of circuit adjustment have been limited to the adjustment with semi-fixed variable resistors. However, Sharp W328 color TV circuit adjustment is achieved through I ~ 2C bus control. That is, through the remote control to send the adjustment data to the integrated circuit, and control the accuracy of its adjustment. All the adjustment data of this machine are stored in the IC1004 (E ~ 2PROM) memory device in advance. In addition, the standard data (initial value) is also stored in the IC1001 (CPU) in the following cases and must be controlled by the I ~ 2C bus Adjust. The reason is: IC1004 failure, will result in the adjustment of data loss.