DVD机难点电路大多数是大型、中型集成电路外围的小规模集成电路、电子切换开关(或门电路)、集成运放等。下面,笔者专门对DVD机聚焦跳层电路的功能作具体分析。顺便,具体分析聚焦与循迹伺服互换电路的工作过程。该难点电路的相关部分,如图1所示。1.按照初步认知程度先画出方框图 Most DVD hard drive circuits are small-scale integrated circuits on the periphery of large, medium-sized integrated circuits, electronic switches (or gates), integrated op amps and the like. Below, I specifically focus on the DVD player hopping circuit functions for specific analysis. By the way, the specific analysis focus and tracking servo exchange circuit work process. The relevant part of the difficulty circuit, as shown in Figure 1. 1. According to the initial level of awareness draw a block diagram