Date   

Re: 7704A Mainframe Panel Lights No-Op

Harvey White
 

On Tue, 02 Jan 2018 17:43:38 -0800, you wrote:

Albert,

You nailed it! Would have blown right by that in my rush to get to the A32 board to check the +5V supply! So, articulating it a few times brought the lights back. Talk about feeling really dumb!

Well, that gets me back to square one but with a little more knowledge than before. The individual B SOURCE TRIGGER lights don't work but I have reason to suspect that it is the +5 lights connection to board 14. One rainy weekend, I will tear down the front and poke around with a probe but, for now, that's good enough!

Sincere thanks! As good as the service manuals are, they do not seem to address these trivial problems in a readily researchable manner.
The military, or at least the defense contractors, had the desire to
have smart diagnostics carried out by something resembling a data
tablet. You'd plug it into an aircraft, and it would interact, do
tests, and then recommend the proper repair procedure. Given the
amount of smarts in a 7000 series mainframe (and guessing how much
space is left in the only one that *had* a processor in it), the plug
in diagnostic link wouldn't be possible.

However, a decision tree on a per-topic basis would be possible, at
least to some extent. It couldn't be hosted in the scope, but could
be hosted in another piece of equipment.

Possible to do, but I'm not sure how easy. Given the basic logical
framework implementing the decision tree, you could adapt it to any
number of projects, but how close that logic could get is another
matter.

The accuracy and depth of the decision tree for troubleshooting varied
from manual to manual, if it was there at all. Lately, it of course
goes to "replace Axxx board", or "return to factory for repair".


Harvey


Re: 7704A Mainframe Panel Lights No-Op

k6whp
 

Albert,

You nailed it! Would have blown right by that in my rush to get to the A32 board to check the +5V supply! So, articulating it a few times brought the lights back. Talk about feeling really dumb!

Well, that gets me back to square one but with a little more knowledge than before. The individual B SOURCE TRIGGER lights don't work but I have reason to suspect that it is the +5 lights connection to board 14. One rainy weekend, I will tear down the front and poke around with a probe but, for now, that's good enough!

Sincere thanks! As good as the service manuals are, they do not seem to address these trivial problems in a readily researchable manner.

--
William, k6whp
"A friend told me to cheer up, things could be worse.
So I cheered up and, sure enough, things got worse!"


Re: Attention Hakan

Artekmedia <manuals@...>
 

Maybe it thinks my ISP is a spammer?

Got an alternative?
-DC

On 1/2/2018 7:02 PM, zenith5106 wrote:
Strange

It is for sure a live account. I get mails on it every day.

/Håkan


--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com


Re: Attention Hakan

 

Strange

It is for sure a live account. I get mails on it every day.

/Håkan


Attention Hakan

Artekmedia <manuals@...>
 

Hakan

I tried to reply to your email but hahi@telia.com was returned as "undeliverable" ??

Dave
manuals@artekmanuals.com

--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com


Re: First draft of the Tek knob visual index project

tronix_cal
 

Are you using the Common Design Parts Catalog for any part of the project? While it doesn't have the useable on code (Knob to Model number) listing, the dimensions, logos, labeling, method of manufacture (molded/machined) and ID/OD info is all there, with a directory of drawings. I know of a hard copy I could borrow. The data could be extracted, without outright copying of the entire content, couldn't it?


Re: 7704A Mainframe Panel Lights No-Op

Albert Otten
 

On Mon, Jan 1, 2018 at 10:26 pm, William wrote:


(seems like this guy is rebelling against me or is deteriorating.)

The panel light for the controls in the front middle of the mainframe are
dead. That is the button lights for the Vertical and Horizontal Mode buttons
have gone out. (Scope still works.) Additionally, the A and B trigger Source
lights no longer work as well. Before some worked and some did not. Now the
whole thing is dark.

In looking at the service manual, I stumbled onto page 6-3 and note that there
are four boards ("board 11", "board 12", "board 13", "board 14" which are
Vertical Mode, Horizontal Mode, A Trigger Source, and B Trigger Source
respectively.) and each of these is supplied with a "+5V Lights" source from
the Calibrator Board 10 but the schematic shows no originating source and I
have not been inside the uni yet to see what's what.

Anyone troubleshoot this problem and can offer advise and information?

Thanks in advance.
--
William, k6whp
"A friend told me to cheer up, things could be worse.
So I cheered up and, sure enough, things got worse!"
This can't be a big problem. Must be a bad contact somewhere, with just a very few places to check.The 5V(lights) is generated bij the SMPS diagram <8> but is also used there in the balance input to the SMPS control IC . So the source should be OK.
From there the 5V(lights) goes to the rear panel illumination on/off switch. Did you exercise that switch a few times?
Next via board 32 <9> and P32G to the Main Interface Board at <2>. The plugins get their 5V(lights) from the main interface board. So please check P32G for good contact.

Albert


Re: Need to borrow 5L4N and 7L18 manuals to scan

Artekmedia <manuals@...>
 

Chuck rt all

I know there is a final 7L18 manual. Somewhere I have the 070-xxxx-xx part number for it written down. You are right in that case there are few if any differences ( I still own a 7L18 myself) .

I understand from a 5L4N owner that the prelim manuals available do not match his unit in a couple of significant places and thus the search for a final version of that one.

Cheers
-DC
manuals@artekmanuals.com

On 1/2/2018 10:50 AM, Chuck Harris wrote:
Back in the day, I got my 7L18 manual from Deane Kidd,
at his farm in Oregon. My manual was marked preliminary,
and I asked him about that.

Although I vividly remember the diesel mechanics shop
building, that he had built for his son and repurposed
as a tektronix manual library, and I distinctly remember him
searching and finding the 7L18 manual on the vast shelves of
manuals, I am a little fuzzy on the following:

He either told me that the preliminary manual was the same
as the final, or he told me that there never was a final
version of the 7L18 manual.

From having used the manual, I can say that it was vast and
extensive, but it also seemed incomplete in some ways...

-Chuck Harris

Artekmedia wrote:
HNY everyone !

I am looking for service manuals for the 5L4N and 7L18 spectrum analyzer plug-ins for
the 5000 and 7000 series scopes respectively. What I need are the final full release
versions of these service manuals. There are free downloads out there that of the
"PRELIMINARY" service manuals of both these units . I have my own scan of the prelim
7L18 and there is a copy of the prelim 5L4N on one of the better known free download
sites. PLEASE DO NOT POINT ME AT THESE ! What I need is a OEM Paper copy of the full
up final release of the manuals. I would like to borrow these to scan with the carrot
of providing a couple of free downloads from our web site as payment for the favor.
In 18 years of doing this I have never lost or damaged a loaner manual so this should
be a low risk proposition. Depending on your current point of view I am fortunately
or unfortunately located in the USA so offers to loan me a manual if you live outside
the USA while appreciated in sentiment are not financially practical.

May the gods of stagnate water smile favorably upon all of you and your offspring in
the year to come

-DC
manuals@artekmanuals.com
--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com


Re: Need to borrow 5L4N and 7L18 manuals to scan

Chuck Harris <cfharris@...>
 

Back in the day, I got my 7L18 manual from Deane Kidd,
at his farm in Oregon. My manual was marked preliminary,
and I asked him about that.

Although I vividly remember the diesel mechanics shop
building, that he had built for his son and repurposed
as a tektronix manual library, and I distinctly remember him
searching and finding the 7L18 manual on the vast shelves of
manuals, I am a little fuzzy on the following:

He either told me that the preliminary manual was the same
as the final, or he told me that there never was a final
version of the 7L18 manual.

From having used the manual, I can say that it was vast and
extensive, but it also seemed incomplete in some ways...

-Chuck Harris

Artekmedia wrote:

HNY everyone !

I am looking for service manuals for the 5L4N and 7L18 spectrum analyzer plug-ins for
the 5000 and 7000 series scopes respectively. What I need are the final full release
versions of these service manuals. There are free downloads out there that of the
"PRELIMINARY" service manuals of both these units . I have my own scan of the prelim
7L18 and there is a copy of the prelim 5L4N on one of the better known free download
sites. PLEASE DO NOT POINT ME AT THESE ! What I need is a OEM Paper copy of the full
up final release of the manuals. I would like to borrow these to scan with the carrot
of providing a couple of free downloads from our web site as payment for the favor.
In 18 years of doing this I have never lost or damaged a loaner manual so this should
be a low risk proposition. Depending on your current point of view I am fortunately
or unfortunately located in the USA so offers to loan me a manual if you live outside
the USA while appreciated in sentiment are not financially practical.

May the gods of stagnate water smile favorably upon all of you and your offspring in
the year to come

-DC
manuals@artekmanuals.com


Re: 8568b YTO problem

Pete Lancashire
 

How about trying the HP/Agilent group on Yahoo ?

-pete

On Tue, Jan 2, 2018 at 7:00 AM, Bill Riches <bill.riches@verizon.net> wrote:

I have three 8568B SAs. One works fine, the other two have the same
problem.



8568B - 2503A01022.



Test FX = 441.0 Mhz -10db. (freq and cal readout are right on)



Span 1 Mhz ok - no jitter (pic 1mhz)

Span 1.1 Mhz - jitter (pic 1.1 Mhz) (no YTO Icon)

Span 20.0 no jitter

Span 20.1 Jitter and YTO icon. (pic 20.1Mhz)



https://www.dropbox.com/sh/nescko2lr1rymwu/AADlF682G54OGdOdHHDHFnrZa?dl=0



Pictures are on my dropbox - taken with Trace in "Max Hold" to show width
of jitter.



I have the complete set of manuals - Troubleshooting and performance tests.



Any suggestions on what section to start?



Any help would be appreciated!



73,



Bill, WA2DVU





8568b YTO problem

Bill Riches
 

I have three 8568B SAs. One works fine, the other two have the same
problem.



8568B - 2503A01022.



Test FX = 441.0 Mhz -10db. (freq and cal readout are right on)



Span 1 Mhz ok - no jitter (pic 1mhz)

Span 1.1 Mhz - jitter (pic 1.1 Mhz) (no YTO Icon)

Span 20.0 no jitter

Span 20.1 Jitter and YTO icon. (pic 20.1Mhz)



https://www.dropbox.com/sh/nescko2lr1rymwu/AADlF682G54OGdOdHHDHFnrZa?dl=0



Pictures are on my dropbox - taken with Trace in "Max Hold" to show width
of jitter.



I have the complete set of manuals - Troubleshooting and performance tests.



Any suggestions on what section to start?



Any help would be appreciated!



73,



Bill, WA2DVU


Need to borrow 5L4N and 7L18 manuals to scan

Artekmedia <manuals@...>
 

HNY everyone !

I am looking for service manuals for the 5L4N and 7L18 spectrum analyzer plug-ins for the 5000 and 7000 series scopes respectively. What I need are the final full release versions of these service manuals. There are free downloads out there that of the "PRELIMINARY"  service manuals of both these units . I have my own scan of the prelim 7L18 and there is a copy of the prelim 5L4N on one of the better known free download sites. PLEASE DO NOT POINT ME AT THESE !  What I need is a OEM Paper copy of the full up final release of the manuals. I would like to borrow these to scan with the carrot of providing  a couple of free downloads from our web site as payment for the favor. In 18 years of doing this I have never lost or damaged a loaner manual so this should be a low risk proposition. Depending on your current point of view I am fortunately or unfortunately located in the USA so offers to loan me a manual if you live outside the USA while appreciated in sentiment are not financially practical.

May the gods of stagnate water smile favorably upon all of you and your offspring in the year to come

-DC
manuals@artekmanuals.com

--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com


7704A Mainframe Panel Lights No-Op

k6whp
 

(seems like this guy is rebelling against me or is deteriorating.)

The panel light for the controls in the front middle of the mainframe are dead. That is the button lights for the Vertical and Horizontal Mode buttons have gone out. (Scope still works.) Additionally, the A and B trigger Source lights no longer work as well. Before some worked and some did not. Now the whole thing is dark.

In looking at the service manual, I stumbled onto page 6-3 and note that there are four boards ("board 11", "board 12", "board 13", "board 14" which are Vertical Mode, Horizontal Mode, A Trigger Source, and B Trigger Source respectively.) and each of these is supplied with a "+5V Lights" source from the Calibrator Board 10 but the schematic shows no originating source and I have not been inside the uni yet to see what's what.

Anyone troubleshoot this problem and can offer advise and information?

Thanks in advance.
--
William, k6whp
"A friend told me to cheer up, things could be worse.
So I cheered up and, sure enough, things got worse!"


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

One of the scopes is damaged. I'll see if I have the part, when I dig them out of storage.

-----Original Message-----
From: Jeff Woolsey <jlw@jlw.com>
Sent: Jan 1, 2018 5:25 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

On 12/31/17 2:31 PM, Michael A. Terrell wrote:
I have a couple of the 323/324 scopes if you'd like photos of those knobs. It will be a few weeks before I can dig them out to remove the knobs to photo.
Do you happen to have a souce for the horizonal VAR pot in a 323 scope? 
Mine seems to have a broken wiper.  It's a ganged pot, 20K/200K.

--
Jeff Woolsey {{woolsey,jlw}@jlw,first.last@{gmail,jlw}}.com
Nature abhors straight antennas, clean lenses, and empty storage.
"Delete! Delete! OK!" -Dr. Bronner on disk space management
Card-sorting, Joel. -Crow on solitaire




Michael A. Terrell


Re: First draft of the Tek knob visual index project

Jeff Woolsey
 

On 12/31/17 2:31 PM, Michael A. Terrell wrote:
I have a couple of the 323/324 scopes if you'd like photos of those knobs. It will be a few weeks before I can dig them out to remove the knobs to photo.
Do you happen to have a souce for the horizonal VAR pot in a 323 scope? 
Mine seems to have a broken wiper.  It's a ganged pot, 20K/200K.

--
Jeff Woolsey {{woolsey,jlw}@jlw,first.last@{gmail,jlw}}.com
Nature abhors straight antennas, clean lenses, and empty storage.
"Delete! Delete! OK!" -Dr. Bronner on disk space management
Card-sorting, Joel. -Crow on solitaire


Re: extender kit tek7xxx

Tryode
 

Hi Christian,
If your offer is still available I'm interested and please give me your email contact


Re: First draft of the Tek knob visual index project

Ravi Moghe
 

The problem is in the link.

The closing bracket has become part of the weblink.

If you copy all the text before closing bracket and open it in a new tab,
the page will open correctly. If you just "Click" on the weblink to open
page, it fails with 404 because the closing bracket gets included as part
of weblink.

--
With Warm Regards,

Ravi
(Sent from Personal A/c)


Re: PG-506 Calibrator and Power Module Compatibility

 

I agree that is probably what happened; the original design included
countersunk holes intending to be used with flat head screws but they
interfered with the alignment pins.

I wonder how mine ended up with flat head screws then and Tektronix
ones at that. There was no sign of previous repairs but it hardly
seems likely that someone was using it and removing the index pins
from the plug-ins.

On Sun, 24 Dec 2017 00:31:52 -0800, you wrote:

Hi David,
Yes, mine is the same but I would say it is clear from the unmarked paint in the countersinks that no flat-head screw (countersunk screw in the UK!) was ever fitted.

There is a curiously shaped - dished, almost a low 'top-hat' section - internally spiked lock washer then a dome nut on mine. The lock washer effectively bridges the countersunk hole and the dome washer is just for elegance I would think.

So I would contend that the holes were countersunk and only later did Tek realize there was an issue and found a solution that did not involve replacing the entire chassis? If I've understood this site, this should be a link a couple of pix: https://groups.io/g/TekScopes/album?id=13647


Re: First draft of the Tek knob visual index project

Chuck Harris <cfharris@...>
 

I have to wonder if the spurious 404 message problem
is due to the way the various website hosts handle low
volume websites. They all use virtualized servers, so
that each website appears as though it has a server all
to itself, but in reality, it is a virtual machine
running on a much more capable server, along with
thousands of other low volume websites.

But...

Most of these homemade websites get zero traffic the
majority of the time, so the virtualized website gets
parked off in cold storage on some disk until it is needed.

The first access after the website has been parked on disk
can take a very long time... 30 seconds to a minute before
any data makes it down the pipe. Perhaps somewhere along
the way some resource has decided that the site has taken
so long to respond that it must be missing, and takes it
upon itself to return a 404 to the request?

For a while after that initial request, the website will
be actually active, and subsequent requests will get quick
access... until the server decides the website is inactive
once again, and parks it in cold storage.

-Chuck Harris

Dale H. Cook wrote:

At 07:35 PM 12/31/2017, Dano wrote:

Link is no good, glorified 404 error.
I have noted, on some sites including my own, that one or two visitors get a 404 or other error where the vast majority of visitors are fine. My most recent case was a 403 error where the error was apparently occurring somewhere between the visitor and my site, as I use custom error screens and the visitor was seeing a plain text 403 message with wording entirely different from my 403 screen.

Dale H. Cook, GR / HP Collector, Roanoke/Lynchburg, VA
http://plymouthcolony.net/starcity/radios/index.html


Re: Sony/Tektronix 336 scope

kc0wox Leeper
 

I found a manual. Thanks anyway.
Leonard

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