Products > Test Equipment
tds744a not completing boot
durresaku13:
hi everyone.
im new to the site and to the scope journey.
i was given this scope made by tektronics. when i turn it on, starts to boot led lights turn on for a brief moment then the display shows only a horizontal line on the top, both ends of that line have a tiny vertical line-ends.
no other item shows up. no grid no nothing. can someone please tell me if is any solution to this, or is it gone to the point of no return.
and what other info is needed to help identify the problem.
thank you all.
nctnico:
Did you try to connect an external (VGA) monitor?
durresaku13:
thank you.
i did but
shows the something.
nctnico:
In that case you'll need to dig deeper. The fact you see the same on the internal and external monitor (at least that is what I assume you mean by your last post) is an indication the display part is still working.
Tektronix has a component service manual for a similar DSO of theirs: https://download.tek.com/manual/070971003.pdf It is not 100% identical but you can use the diagnostics and diagrams to get an idea of what you are dealing with.
durresaku13:
thanks.
im new to scopes and i find them very complex instrument. what about the digital segment inside the scope. would that tell me anything? and also the dip switches any particular on/ off position?
thank you again.
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