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Hi The connectors in the 7603 for the most part are color coded. For example a P1 connector will often be brown and P2 will be red. With this knowledge and the manual you have a better chance of

This might help. It is some extensive tests on a 7603 HV I did a few years ago. http://home.comcast.net/~tek-share/site/?/page/Tektronix_7603/&PHPSESSID\ =a096bf125eb899358c4d218d16fd078d

In the 485 I am working on one of the HV caps has 3 pins. One is tied to a metal shell that looks like a ground shield around the cap. Bob

I bought a broken 7603, the fan was working but nothing else. I opened the power supply and started looking but did not really find anything. I did not find on the power supply board the TO

I buy it at conrad electronic (Europe). It is made by Flexcon, here are the english datasheets: <http://www.produktinfo.conrad.com/datenblaetter/525000-549999/529443-da-01-en-Schutzfolie.pdf>

On a related subjuct: does anyone know of a company that produces the adhesive backed mylar labels that are often used for control panels? The mylar is printed on the backside and a layer of adhesive

The 2430A use a two part firmware. U480, U490 are V 2.5 as listed in the scope below. U670, U680, U682, U690 and U692 make version 2.41 as listed in the ebay scope. Unless you are sure you are having

Feel free to check out a site I run: http://www.scopejunction.com/ It focuses more on modern scopes of all brands, as well as electronics and test in general. I hope you'll join, and if you're

Hi Dave, Those are Keithley source meters, not Tek scopes. Let your head come to rest. Jay

Good Year !! All voltage on processor board and from power supply are within specs all digital voltages on cpu board are ok, The scope passes self test but in the moment of starting it freezes with

Hi Larry, Your link leads to a forum which requires membership to see the photos. Mark

That's a pretty slick repair. You sure your name isn't McGyver instead of spinroyd? ;-) Well done! Mark

Found this page: <http://www.keithley.com/base_download?dassetid=55762> It's rather confusing. Are these Tek scope models? Or Kiethley instrument models? Is the "C32" a firmware rev? Is it really

see the Photo under 495 showing how i replaced the diodes using a C2 diode pack at a fraction of the cost of the aftermarket mixer and it performs much better.

Anyone have a front cover for this scope they'd like to let go of? Please, no web references (ie, e-pain, et. al). Only inquiring of list members' resources. Please contact me off-list. Thanks, Dave

Anyone know what the latest rev of the firmware is for this scope? And source for this file and what's required to install it if needed? Thanks, Dave

Is problem #1 happening to both the cursors? Or can you move one of them the full extent? The d-t and d pots are dual units and scanned by the dac on A5. They are phased 180 degrees apart. If this

One more thing on the cursor problem - it could also be that something just runs out of dynamic range and can only go so far - right where the cursor stops advancing. If you follow the signals

Since you have two identical scopes, you can try swapping A5 or other modules, if it's not too complicated or risky - that would narrow down the problem areas. Just keep track of which goes with which