Tektronix 2465B error code interpretation

error code:

code. I figure

bit of light

I do not have one but i was researching the 2465 to buy recently and i was looking for repair ease or cronic problems in various scopes so this is what i remember....

CT is counter/timer option on that scope. I remember reading somewhere there is an options service manual , i am guessing that will probably cover the options like CT in more detail i.e. errors/repair etc.

HTH robb

That the problem is in the CT and not hte scope?

JW wrote in news: snipped-for-privacy@4ax.com:

CT is counter-timer,an option that has a separate service manual. It probably will be hard to find one.

there also was a pricey extender kit for servicing the options. (they plug into a options board on the top of the scope chassis) You can probably make your own extender ribbon cables.

also,there will be a sticker on the back of the scope telling you what options are installed,if any. there also were scope handle stickers like "2465B CTS" or 2465BDM"

Thanks very much Jim (and robb and PeterD). If I can't repair the option, would you happen to know if it's possible to just remove it and have the error go away?

error code:

code. I

anyone shed a

manual.

options.

chassis)

you what

the

remove it and

i think you can by pass the error with a combination button press , i.e. hold three certain buttons and scope bypasses but i do not know affect on the performance and operation ?

also there is a way to do a option calibrate or reset or clear ??? using some menu but my memory fails me

i am sure someone else can help with that, hope you fix it robb

JW wrote in news: snipped-for-privacy@4ax.com:

Sorry,I can't recall,and no longer have access to the manuals. It's not difficult to remove the CT card,so you could try it. You may have to relocate some jumpers on the 2465 motherboard,the ones for the signal pickoff for the CT option.

Thanks Jim, I was unsuccessful in repairing it as I cannot find any schematics, (It would be difficult even with them, as the problem was intermittent, and access to the board without an extender would be impossible) but was able to remove the option by disconnecting all the cables from the CT card (option 06) to the A1 and A5 boards, and jumpering the following points on the A1 board:

J101 1-3 and 6-8. J102 3-4 and 7-8.

This has solved the problem with the error code, and has put the scope back in service.

Many thanks once again!

Yeah I know, but this failure for some reason was causing intermittent sweep problems.

I couldn't find anything in the 2465B service manual about this. Oh well...

Thanks for your help, robb.

Go to bama.sbc.edu (or the mirror site), there you can download a manual with schematics, all error information, etc.

hth, Andreas

Andreas Tekman wrote in news: snipped-for-privacy@q3g2000prf.googlegroups.com:

For the OPTIONS? The options all came with separate service manuals.( a royal PITA) And I believe they are kinda hard to come by these days.

When I think of all the TEK manuals tossed out when the Orlando Service center closed...I coulda been RICH,if only I had had a place to store all of them.

Yep. I had no luck at all finding the schematic for the CT option. At ANY price. Oh well, without the option the scope works fine, if a bit less capable.

Tossed out?

JW wrote in news: snipped-for-privacy@4ax.com:

Yeah,and the same happened at all the other 7-8 TEK field offices that got closed back in 1999. :-( (there used to be THIRTY TEK field offices!!!)

PLUS,all the TEK semiconductor reference manuals [company confidential] that got shredded/tossed! Now they put all that on the company intranet,and only they can access it.

error code:

code. I figure

bit of light

hey JW, i hate having problems like that thus it stuck in my head so... while searching for info on 2400 series (considering purchase) ...

found your error

Check : CT Test : 84 Routine: Gate Array (U6180) trigger path tests Error : 0C Boolean OR trigger failed to generate a sweep on the rising edge of ATS. Check U6180, Q5981, Q5982, Q5983, Q6090, Q6092, Q6091, U5952, U6070

hope this helps robb

"robb" wrote in news: snipped-for-privacy@corp.supernews.com:

if you could scan and upload your CT option manual to BAMA,it would be greatly appreciated. Same for any of the other 2445/65 options.