my tds540 acquisition board is dead, rest of the instrument in perfect condition. My board is not repairable (physically damaged) so need to replace entire board with one for tds540 or compatible (say for tds544A ). I am in Ukraine. Sure there is an option just buy on ebay, but asking here first. Actually no need to send internationally, I have mailing address in Delaware, they will forward, if you are in US.
Thanks in advance,
Sergey (skype: kora007).