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一、摩托罗拉GC87型故障1:接收效果差。故障部位:接收电路的无线开关U400内部损坏。故障2:经常自动关机。故障部位:检查主板电路,发现U701引脚虚焊;U801内部不良;U703引脚虚焊。故障3:开机无接收信号。
First, the Motorola GC87 failure 1: poor reception. Fault location: The receiving circuit of the wireless switch U400 internal damage. Fault 2: often automatically shut down. Fault location: check the motherboard circuit and found that Weld U701 pin; U801 bad internal; Weld U703 pin. Fault 3: boot no signal received.