论文部分内容阅读
在修理遥控器,特别是修理遥控器距离近,发射管老化,部分按键失灵等不易检查的故障时,如果有台测试器就方便多了。笔者利用一个遥控接收头,一块386功放,外加少量阻容件,制作了一台遥控器测试器。因其制作简单,免于调试,且具有一定实用价值,非常适合初学者制作,现介绍如下: 本测试器电路如图1,图中D为遥控接收头成品件,IC1为LM386功放,与外围阻容件一起制成同相放大器,作功率放大之用,
In the repair of remote control, especially the repair distance between the remote control, launch tube aging, some of the keys failure and other difficult to check the fault, if there is a tester more convenient. The author uses a remote control receiver, a 386 amplifier, plus a small amount of resistance capacity, produced a remote control tester. Because of its simple, free from debugging, and has some practical value, is very suitable for beginners to make, are introduced as follows: The tester circuit shown in Figure 1, the figure D remote control receiver finished product, IC1 LM386 amplifier, and the periphery Resistor together with the capacitor made of the same amplifier for power amplification purposes,