故障分析:视放电路 故障检修:测V511C集电极为212伏,该枪截止,此时发现基极与射极以脱焊,轻轻碰该管,机器恢复了正常. 备注:此故障是由于该管温升高造成,建议把三枪都补焊一下 处理方法:红’绿’蓝三枪补焊 |
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