E4440A驱动器可以换成新的吗？

嗨Ed K，与基于Windows的机器不同，E4440A PSA频谱分析仪没有独立的物理硬盘。
数据存储在处理器上的闪存模块中（通常为48MB或64MB容量），或者可能存储在115扩展内存闪存板（容量512MB）（如果存在）上。
通常，任何用户文件（跟踪文件，状态文件，屏幕图像等）都可以手动一个一个地移动到内置软盘驱动器中的格式化磁盘，或者通常远程移动到其中一个接口端口（GPIB，LAN或
串行）。
您的设备无法启动的事实排除了这些方法中的任何一种，因此如果您确实需要删除数据，则需要物理移除闪存模块。
选项115板非常简单，因为它是一个易于拆卸的CompactFlash卡，可以插入A39 USB /内存板的顶部，可以通过卸下设备的外部盖板和内部板盖进行操作。
处理器闪存问题更多：数字中频板和接口或内存板需要移除才能移除处理器。
一旦处理器被移除，您将看到闪存板通过4个塑料支架固定到处理器上，并且需要非常小心以避免在移除期间损坏（处理器上还安装了另一个内存模块，但是
这是易失性RAM，因此不存储任何数据）。
您需要提醒服务中心，因为该设备现在没有任何闪存，因为这需要临时更换并重新加载固件文件，以便在维修后对分析仪进行功能验证。
或者，安排Keysight现场工程师在现场进行维修可能更简单。
我假设该单位只需要更换电源，但当然故障可能在其他地方。
最好与您当地的Keysight客户服务中心讨论。
我希望这有帮助。
此致Simon C代表Keysight Technologies UK ltd。



     以下为原文

  Hi Ed K,

Unlike a Windows-based machine, the E4440A PSA Spectrum Analyser does not have a discrete physical hard drive. Data is stored in a flash memory module on the processor (typically 48MB or 64MB capacity), or possibly on the option 115 Expanded Memory flash board (capacity 512MB) if present.

Normally any user files (trace files, state files, screen images, etc) can be moved either manually one at a time to a formatted disk in the inbuilt floppy drive, or more usually remotely over one of the interface ports (GPIB, LAN or serial). 

The fact that your unit will not power up precludes either of these methods, so if you really need to remove the data, you will need to physically remove the flash modules. The option 115 board is fairly straightforward, as it is an easily removed CompactFlash card that slots into the top of the A39 USB/Memory board, accessible by removing the unit's outer dress cover, and inner board cover.
The processor flash is more problematic: the Digital IF board and interface or memory boards need removing to allow the processor to be removed.
Once the processor is removed, you will see the flash memory board is secured to the processor on 4 plastic stand-offs, and much care needs to be taken to avoid damage during removal (there is another memory module also mounted on the processor, but this is volatile RAM, so does not store any data).
You will need to alert the service center to the fact that the unit now lacks any flash memory, as this will need to be temporarily replaced and firmware files reloaded to allow the analyser to be functionally verified once repaired.

Alternately, it may be simpler to arrange for a Keysight Field Engineer to perform a repair on-site.
I am assuming the unit simply needs a power-supply replacement, but of course the fault could lie elsewhere. This is best discussed with your local Keysight Customer Service Center.

I hope this helps. Regards, Simon C, on behalf of Keysight Technologies UK ltd.