Broken Scope -- help?
Broken Scope -- help?
(OP)
greets all,
don't know if i'm in the right group.
thought i purchased a 120/220V oscilloscope
(Tenma)
blindly plugged it into a 220V line and
it made a heartwrenching sound.
now all i get is two little dots in the middle of my screen. focus and intensity controls still work.. but thats about it.
fuse is fine, of course.
what did i burn? anyway i can fix this myself? (without the aid of another scope)
thanks,
-longano
don't know if i'm in the right group.
thought i purchased a 120/220V oscilloscope
(Tenma)
blindly plugged it into a 220V line and
it made a heartwrenching sound.
now all i get is two little dots in the middle of my screen. focus and intensity controls still work.. but thats about it.
fuse is fine, of course.
what did i burn? anyway i can fix this myself? (without the aid of another scope)
thanks,
-longano





RE: Broken Scope -- help?
<nbucska@pcperipherals.com>
RE: Broken Scope -- help?
a powersupply i can fix.
a blown tube is a different story.
-longano
RE: Broken Scope -- help?
it looks like there is a design error, the fuse and
other protection should have prevented the damage.
Repairing an unknown instrument is not a trivial task.
<nbucska@pcperipherals.com>
RE: Broken Scope -- help?
RE: Broken Scope -- help?
More data please.
Best wishes,
David707
RE: Broken Scope -- help?
RE: Broken Scope -- help?
Bought it 18 years ago in te States for hobbying, still have it working.
If you want, Send me your fax and I can fax the manual with the schematics.
joaco1