HP 3458A - Repair update, cleaning chassis

While typhoon DUJUAN unleashes it’s wraith on Taiwan, I spend few more exciting hours scrubbing chassis from rust.

Aluminum inner frame have date code marks too, MAY 04 1995 and May 23 1995, confirming theory that all meter boards, except A5 outguard controller are ~1995 year, while A5 is was swapped out to older 1990 board.

IEC mains socket was fixed to chassis with rivets, I’ll use suitable screws instead with new socket.

Was using sandpaper grit 200 first, then 400, then 600A. Few spots around nuts and corners still need some attention, will do it later before assembly.

Cleaned front panel from alien stickers. It’s almost mint now, satisfied with front face condition so far.

Cleaned keypad as well, who knows whose dirty fingers pressed teh buttons :)

So far spent ~2 hours on cleaning today.

Author: Illya Tsemenko
Published: Sept. 28, 2015, 8:40 p.m.
Modified: Sept. 28, 2015, 8:41 p.m.

References

Comments