Hello group,
I have seen interesting hack/upgrade data in the following thread :
https://www.eevblog.com/forum/testgear/tek-tds-3054b-vs-tds-744a/I have a TDS520B, 2 channels 500MHZ 1GS/s. I think I could see if an "upgrade" to TDS620B (same BW and number of channels but better sampling rate) is possible.
Configuration resistors for TDS520B on acquisition board are (see photo):
BID0=R1061 missing, BID1=R1062 soldered, BID2=R1063 missing, BID3=R1064 soldered --> 1010
Configuration resistors on processor board are (see other photo):
ID0=R17 soldered, ID1=R15 missing, ID2=R13 missing, ID3=R12 soldered --> 0110
NVSIZE0=R9 soldered, NVSIZE1=R7 soldered --> 00
(signal names as per TDS520B Component Service Manual pdf p269 & 297)
I had no chance with finding board pictures for TDS620B on Google.
Does anyone by chance have this configuration resistors data or photos of acquisition board (bottom side) & processor board ?
Thanks,
Michel.