扫描时没有信号是为什么？

一个月没开，抽个几天再看看情况吧

多抽几天也没用，还是老样子。
诊断显示RFDC check fail. Q1 differential voltage actual and its linear fit is not within the maximum deviation. Q1
differential voltage control and its linear fit is not within the maximum deviation. Q1 differential
voltage actual and its linear fit is not within the maximum deviation. Q1 differential voltage control
and its linear fit is not within the maximum deviation. Q1 differential voltage actual and its linear fit is not within the maximum deviation. Q1Voltage: Differential voltage readback is not flat.
Q1Voltage: Differential voltage readback is not flat. Q1Voltage: Differential voltage readback is
not flat. Q1Voltage: Differential voltage readback is not flat. Q1Voltage: Differential voltage
readback is not flat. Q1Voltage: Differential voltage readback is not flat. Q1Voltage: Differential
voltage readback is not flat.
不知道是不是线路板问题，实在头疼啊

应助达人

处理不了，还是报修最好，必竟硬件故障，还是厂家人员有比较清晰的解决思路。

看报错，说的都是电压问题。
还是报修比较稳妥。可能是电路板出问题了。