8648C的常见故障现象为:
1.开不了机
2.开机自检报错
3.信号无输出
4.不能衰减信号
5.信号输出偏低或偏高
6.频率偏差大.频率失锁
7.屏幕无显示
8.GPIB通讯功能无作用
The common fault phenomenon of 8648C is:
1. Can't turn on
2. POST error
3. No signal output
4. Can not attenuate the signal
5. Signal output is low or high
6. Large frequency deviation. Frequency loss of lock
7. No display on the screen
8. GPIB communication function does not work
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