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福奈VIP-3000HC MK Ⅲ型放像机是国内目前较为流行的一种放像机,但该机系统控制微处理器故障率较高,本文向大家介绍两例故障检修及局部代换电路制作方法。例1,故障现象;接通电源开关,插入带盒,加载后立即卸载。分析与检修:根据上述故障现象分析,带盒进仓后能够加载,说明带仓机构和加载电机驱动电路工作正常。拆开机壳检查,发现加载时鼓电机不转动,初步判断问题存在于鼓驱动或系统控制电路中。插入带盒,用500型万用表检查系统控制IC01/GC91AOOMB013(31)脚
Fu Na VIP-3000HC MK Ⅲ type player is currently a more popular type of player, but the aircraft system control microprocessor failure rate is higher, this article to introduce two troubleshooting and local substitution circuit production methods. Example 1, symptoms; turn on the power switch, insert the cassette, unloaded immediately after loading. Analysis and Maintenance: According to the above analysis of fault phenomena, the cassette can be loaded into the bin, indicating that the mechanism with the loading mechanism and the loading motor drive circuit are working properly. Open the case inspection and found that the drum motor does not load when loading, the initial judge the problem exists in the drum drive or system control circuit. Insert the cassette with a 500 multimeter to check the system control IC01 / GC91AOOMB013 (31) feet