Agilent E7495 linux root account

[GRFixedGear]

Yeah... really weird. Made the fix again, uploaded, pushed the elgato binary up via ftp and compared... no diffs from intended.

At first all the mode menu stuff worked fine, but if I tried to go to System and hit the button for the second page, it just froze with that soft button indicated as pressed, but I could get back to the mode menu stuff and click around for a bit. After a few minutes the soft buttons disappeared again and there is nothing more you can do to the unit. Really really strange

And... previously reported and fixed here

[GRFixedGear]

In other news. They aint jokin in the service manual when they warn you about the fragillity of the N connector ports for the signal generator and spectrum analyzer. Even having moved the rf connector panel away, I broke off the output side when the beast RF assembly slipped out of my hands during disassembly to go find a burned tantalum on the back of the primary power board  . Good news... with some very careful excavating of the covering copper and ceramic substrate you CAN fix one of these. Its definitely not perfect but holy crap it works.

Attachments:
- 160/400/800 grit polished end of the bit that broke off. Did the equivalent to the part still attached to the RF assembly
- Propped up the RF assembly consistently all around and then found stuff to support the backside "patch" of 0.1mm copper (pre-tinned) that was tacked in place before rigging up the broken piece for soldering
- Closeup of how I excavated down into the ceramic and tinned the signal trace for eventual soldering

Soldermask removed with 400/800 grit then polished up with a fiberglass scratcher pencil
The backside cover was soldered to the main bit with SAC alloy for some heat resistance
Junk ceramic resistor body used to support the whole assembly during work
LOTS of excess solder added around the sides and bottom to try to get connection across the "shield" at the break
Center conductor was bridged with a single strand of 36-ish AWG tinned copper
After bridging the pit was treated with drops of super corona dope. Not a good substitute for real dielectric but best I could do
Top side was again bridged with 0.1mm pre-tinned copper. Then the sides of the board around the break were liberally reinforced with more solder

Initial tests looking at the output of the generator with a TinySA showed output was working at expected level. Im sure its not up to factory performance but good enough for who its for