Tektronix 2467B Oscilloscope

[William T Barry]

My Tektronix 2467B Oscilloscope has these options 06,10, 11. My
problem is I get this error message on startup CT Test 84 Fail 40 and
of course you hit the A/B Trigger to get to a scope screen. I am not
too keen on using a broken scope I am not sure of it's accuracy.
Anyone who can give me some assistence I would greatly appreciate.
This erro is not listed in any of the service manuals I have for this
scope............Thankx......Bill..................

 

[Archon]

On 12/16/2011 12:03 PM, William T Barry wrote:

My Tektronix 2467B Oscilloscope has these options 06,10, 11. My
problem is I get this error message on startup CT Test 84 Fail 40 and
of course you hit the A/B Trigger to get to a scope screen. I am not
too keen on using a broken scope I am not sure of it's accuracy.
Anyone who can give me some assistence I would greatly appreciate.
This erro is not listed in any of the service manuals I have for this
scope............Thankx......Bill..................

You can find the service manual for the 2467B options here :

http://www.ko4bb.com/Manuals/Tektronix/Tektronix_-_2465_Oscilloscope/Tek_2445A_2465A_2467_Options_Service_Jun87.pdf

(copy and paste the whole link if it gets disjointed in the newsgroup reply)

Your problem is in the counter timer section and should not affect the
calibration of the main scope.

Your Error message is detailed in the manual above, page 5-6

JC

 

[Jim Yanik]

William T Barry <wbarry@cox.net> wrote in
news:b3ume7ta77ul75coua5r3n4n55m0p2sqmg@4ax.com:

My Tektronix 2467B Oscilloscope has these options 06,10, 11. My
problem is I get this error message on startup CT Test 84 Fail 40 and
of course you hit the A/B Trigger to get to a scope screen. I am not
too keen on using a broken scope I am not sure of it's accuracy.
Anyone who can give me some assistence I would greatly appreciate.
This erro is not listed in any of the service manuals I have for this
scope............Thankx......Bill..................

CT is counter-timer,but I don't have the manual(separate from the scope
manual,naturally...) for the CT option,and no list of it's codes.
chances are,you have a cap failure on the CT board,I used to have to
replace some small tubular ceramic chip caps;0.1uf,IIRC.

But First,I'd check to see that a trigger pickoff cable has not come loose
from the motherboard of the scope,or from the option card itself.

the options are underneath the top coverplate of the scope,after you remove
the case.there's a small options motherboard that the cards plug into.
IIRC,you have the counter-time,GPIB(opt10),and I can't remember what opt.11
is. Might be some EMI mod. Opt.5 was TV trigger/TV line select.

I'm working strictly from memory on this,I have no manuals or other data to
refer to anymore.

BTW,there was a funky extender kit to be able to service the options
assembly with it off the main scope chassis. it was a bunch of cables,you
can probably rig up something that will work for that,if necessary.

--
Jim Yanik
jyanik
at
localnet
dot com