Electronics > Repair

Lecroy wavesurfer 3024 fail to boot

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analogRF:
here are the pictures of the main board of the scope front and back
I have assembled the unit now but I can open it again and try...

I did scope around those marked connectors/headers but I did not see any activity at the time (when the scope was still corrupted)

analogRF:
this is the back side

analogRF:
it seems upgrading the BW needs the board to be replaced or the front end be tuned and/or some passives in the front end to be replaced
these scopes had 350MHz,500MHz,750MHz models but I think the board must be the same except changes in the front end under those shields

plus some ID resistors perhaps? because there is no bandwidth license...

tautech:

--- Quote from: analogRF on June 25, 2023, 06:09:02 pm ---
However now I have a problem.
As you see in the picture all 4 traces have a red line overlay on them and at higher V/div when noise is not visible and trace becomes thin the red line
completely masks the color of trace so they all look red!!  >:( >:( >:( :o :o :o
unless I STOP the trigger then I can see the actual colors

has anyone seen this problem?

--- End quote ---
Problem ?
Maybe you never had a DSO with color intensity display before ?

analogRF:

--- Quote from: tautech on June 25, 2023, 10:08:46 pm ---
--- Quote from: analogRF on June 25, 2023, 06:09:02 pm ---
However now I have a problem.
As you see in the picture all 4 traces have a red line overlay on them and at higher V/div when noise is not visible and trace becomes thin the red line
completely masks the color of trace so they all look red!!  >:( >:( >:( :o :o :o
unless I STOP the trigger then I can see the actual colors

has anyone seen this problem?

--- End quote ---
Problem ?
Maybe you never had a DSO with color intensity display before ?

--- End quote ---

I do... quite a few of them

it was indeed a problem....fixed as I explained...

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