Products > Test Equipment
Lecroy WavePro 950 mini teardown
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grumpydoc:

--- Quote from: Wuerstchenhund on July 25, 2017, 01:26:44 pm ---In addition, if I remember right the older board also has a smaller flash memory which is too small for the WP900 firmware.

--- End quote ---
That would very effectively prevent you loading the WavePro firmware!


--- Quote ---133Mhz should be doable without additional cooling.

--- End quote ---
Hmmm, maybe one day.....


--- Quote ---
--- Quote ---Is it at all worth increasing the RAM on the board - I'm sure that I can find a larger PC-100 DIMM kicking around.

It can increase performance if you run some of the advanced applications (i.e. PMA).

--- End quote ---

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No, don't have any sexy options. Extended Math and the basic jitter analysis is all.
Leo Bodnar:
Interesting that frontend is very similar to DDA-125/LC684DXL
I am replacing a few of these failed CP Clare RF relays in a 684 at the moment.
Leo


LC684:


WP950:
Ice-Tea:
Stumbled on this while trying to repair a DDA-260 aka Wavepro 960. So this is helping me, thanks! :-+
Ice-Tea:
Repaired the broken channel on my unit, the  relay was cooked. Easy enough to probe with a DMM: measured the coil resistance, all of them 180 ohm or so, except for serveal hundred K if I'm not mistaken for the rotten apple.

Leo Bodnar was kind enough to point me in the right direction and provided pointers for a replacement part. Got a slightly different one from the one he suggested: got the Coto 9903-05-20. The 9903-05-00 is closer (gull wing iso j-lead) but it was not available. The J-lead also reflowed nicely so I imagine the impact should be close to zero.

Soon in an eBay near you (or PM me).
Ice-Tea:

--- Quote from: Ice-Tea on November 08, 2017, 06:56:50 pm ---Soon in an eBay near you (or PM me).

--- End quote ---

Or.. not. The offset rotary is misbehaving. It starts to scroll and then jumps back up (loop... repeat). Any takers on this one? If not, I'll have to crack her open (again) and simply replace it...
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