Hi Matt,
Did you check the various low voltage supplies before you took the power supply out of your 2246?
Knowing what the individual voltages are, and knowing how much ripple is present on them will go a long way toward pointing you to the actual problem(s).
The Tekscopes Message Archive has lots of information about these 224x scopes and their common problems.
Do a search of the message archive on various terms like 2246, 2246A, 2245, etc
tom jobe...
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On 3/13/2019 5:40 PM, Matt wrote:
Thank you for the manual link. I will review the front panel function and see what I come up with. The trigger lights to not flash any codes on startup (if I do a reboot after I get the panel to come to life).
I took the SMPS out for a visual inspection. Nothing obviously fried and no signs of electrolyte on the board. I think my next step will be to measure ESR of the electros and see what I find.
Battery on the logic board measured ~75mV. I think that counts as dead. But can that be the cause of these issues?
Any further suggestions welcome as well.
