This is the #HP #16702a logic analyzer restoration thread. It covers cleaning up pcbs against corrosive glue, replacing the harddrive and cleaning the device and case alltogether (ita extremely sticky)
A more cohesive story will eventually land on https://museum.dantalion.nl
Special thanks to @tubetime and @CuriousMarc for the inspiration over the years!
So first up we pull out the #16716a turn it upside down and indeed see the protective covers, the foam and ahesive. This needs to go as the glue turns corrosive damaging the traces.
Luckily, our glue and foam became extremely dried out and britle, this is a big plus and combined with the minimal corrosion made removal trivial.
I used the plastic sleds as a scraper, being careful to test on a non-critical area hoping the plastic would be chosen to be to soft to damage silkscreen and traces.
This turned out extremely effective and I had most of the board clean in about 3 hours.
Then some thorough cue tip cleaning with isopropyl and we are good to go for this board hopefully. Worst corrosion is a couple of vias which have become untented, I consider myself very lucky.
Next up imaging the IDE harddrive and replacing it. It makes sounds that make me very nervous.
Turns out its not #IDE, its not even 40 pins, the analyzer uses a 3.5 inch 50-pin #SCSI connector.
Possible options, SCSI to USB converter with the necessary 3.5 inch 50-pin to high density 50 pin adapter. This option probably is not going to work very well.
Alternatively we buy a second hand PCI (not PCIe) SCSI adapter and use that on an old machine to make an image.
For this last solution I have high hopes. Currently looking at an Adaptec AHA-2940 or 2904
To replace the drive we can either go fill tilt and convert 50-pin SCSI to IDE and IDE to Sata.
Or we can do something more reasonable and buy a SCSI to SD card board.
The SCSI to sdcard board is about 80 euro.
Rather then some no name Aliexpress SCSI to sdcard converter I am going to go for the #ZuluSCSI blaster
The board looks neat and tidy and the firmware is open-source and configuration seems straightforward.
The PCI to SCSi adapter has also arrived and everything is connected together ready to go into the computer.
The drive is a #seagate medalist ST34520N, its 5GB in size.
Cleaning the sticky time, I don't know what this residue is, perhaps nicotine as its quite yellow, doesn't smell as bad as nicotine.
The fans got it quite though, going to clean with a wet rag and maybe some mild soap
Dantali0n 
