The floppy in the TDS scopes that I have worked on are the 26pin ribbon connector. I found a tech doc on line that gives the pin / function names,and compared it to a standard IDE connected

These parts are missing from the processor board (A11). Sorry I should have mentioned this!

i have a bunch of classic / old tektronix manuals for sale ; 1---1A1---dual trace plug - in 2---3A6---plug-in 3---3A72 ---plug-in 4---3S2---sampling unit 5---3S76---dual trace sampling

Jim, You might want to re-check the low and mid frequency compensation of the vertical amplifier. The vertical shift from trace to readout can overshoot or undershoot if it is not adjusted

Hi Bob , I am in south London . I have a 564 storage scope and could be interested in plug-ins . I also have a 661 sampling scope (5T11A) as well as an interest in such things as 7S11 - 7T11(A) as I

"Tom Miller" <tmiller@...> wrote: Also make sure your V-H inhibit signal is getting intact to the vertical interface board from the readout board. -ls-

Is the waviness synchronized to line voltage? Whatdo you see with 60 Hz line signal feed into the vert in? I would look at the power supplies first asalways. Tom

not sure of the particular circuit of this model,but i would start by checking any supply voltages for ripple and unwanted distortions. a model of that age should really have the power supply (at

I have a 7704A that had a bad CRT a while back. After the replacement, there were some issues with focus, intensity, and the readout, but I figured going through the manual and getting everything

no 50 OHM load? Dave & Lynn Henderson ArtekMedia Out-of-Print Technical Manuals www.ArtekMedia.com manuals@... 651-269-4265 cmbath wrote:

In addition to all the observations, I recall that you had to watch them like a hawk as loose hardware would send the seen resistance out of tolerance. Joe Rooney

Jay, It's time to drop the soldering iron (figuratively) and enjoy the holidays :) Merry Christmas... Didier KO4BB

Hi All, Merry Christmas and Happy New Year. I have fixed my PS5010. I don't have extension cable for my TM5006, so I removed all covers and plastic rails to reach the pcb. I checked U1110 (LM339) pin

Well, I found the the ACCALSIG located at TP558 and near U1400. Looking at the signal with a scope it seems to be OK, it is active during part of the diagnostic on power up. Problem is, the signal

Hi, Please respond off list. Jerry

--- On Thu, 12/24/09, Jerry Massengale wrote: From: Jerry Massengale Subject: Re: [TekScopes2] SC503 HV, long message,update To: TekScopes2@... Date: Thursday, December 24, 2009, 12:34 PM HI, I

Merry Christmas Chris. Glad to hear that you resolved the problem. My onlyguess is that there is some error in the procedure that is not obviousunless you have the unit open. I seem to remember

Hello Anand Strictly PG506 gives better results and much quicker. You Have a good Xmas. Jan 2009: A year in review - http://www.tiscali.co.uk/2009

Is anyone able to help out???? I am lost without a proper service manual:-( Merry Christmas, Chris

It turns out I have finally resolved the CG551AP calibration issue: There was actually nothing wrong with the processor board and had I followed the calibration procedure verbatim the problem would