[EE]: HP Network Analyser 4396B screen mirrored

[Justin Richards]

Any one had any experience with HP test equipment screen starting up
mirror'ed. So looking at it via a mirror the text/screen etc is corrected.

I have seen it on a few occasions. Today its a 4396B HP network analyser.

Previously it was a Tektronix TDS754a.

Usually a few power cycles fixes but today no joy.

Justin
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[Richard Prosser]

If the analyser is running a version of Windows, have you tried the
Windows display options? Attach a USB keyboard and hit the WIN & P keys for
example.
RP



On Sat, 6 Oct 2018 at 22:08, Justin Richards <***@gmail.com>
wrote:

> Any one had any experience with HP test equipment screen starting up
> mirror'ed. So looking at it via a mirror the text/screen etc is corrected.
>
> I have seen it on a few occasions. Today its a 4396B HP network analyser.
>
> Previously it was a Tektronix TDS754a.
>
> Usually a few power cycles fixes but today no joy.
>
> Justin
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[Sean Breheny]

Based on the age of this equipment and it's look and feel, I do not think
it is running any version of Windows. I don't think it even has USB ports -
although it does have some kind of port to accept a keyboard.

The TDS754A is even stranger since that is even older.

Justin, are you sure that the 4396B hasn't had its screen converted to LCD?
Maybe there is a mirror pin on the LCD module and it has an intermittent
connection. How long have you had the 4396B?

Sean




On Sun, Oct 7, 2018 at 2:43 AM Richard Prosser <***@gmail.com> wrote:

> If the analyser is running a version of Windows, have you tried the
> Windows display options? Attach a USB keyboard and hit the WIN & P keys for
> example.
> RP
>
>
>
> On Sat, 6 Oct 2018 at 22:08, Justin Richards <***@gmail.com>
> wrote:
>
> > Any one had any experience with HP test equipment screen starting up
> > mirror'ed. So looking at it via a mirror the text/screen etc is
> corrected.
> >
> > I have seen it on a few occasions. Today its a 4396B HP network analyser.
> >
> > Previously it was a Tektronix TDS754a.
> >
> > Usually a few power cycles fixes but today no joy.
> >
> > Justin
> > --
> > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> > View/change your membership options at
> > http://mailman.mit.edu/mailman/listinfo/piclist
> >
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[Justin Richards]

>
> Justin, are you sure that the 4396B hasn't had its screen converted to LCD?
> Maybe there is a mirror pin on the LCD module and it has an intermittent
> connection. How long have you had the 4396B?
>
> 4396B calibration history with our company starts in 1998 so it looks
like we have had it 20 years.

Both items look like they have LCDs. They are certainly flat.

This mornings tests show that it is again intermittent. Initial turn on it
was ok then shortly after it mirror'ed.

I will poke around inside and look for a mirror pin voiding the cal
sticker. Oh well.

Justin

I
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[Randy Dawson]

I had a HP VNA with the same problem, mine had a flex cable up near the screen plugging into a PCB. Unseating the flex and plugging it back in solved it for me.
Randy
________________________________
From: piclist-***@mit.edu <piclist-***@mit.edu> on behalf of Justin Richards <***@gmail.com>
Sent: Sunday, October 7, 2018 3:38 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE]: HP Network Analyser 4396B screen mirrored

>
> Justin, are you sure that the 4396B hasn't had its screen converted to LCD?
> Maybe there is a mirror pin on the LCD module and it has an intermittent
> connection. How long have you had the 4396B?
>
> 4396B calibration history with our company starts in 1998 so it looks
like we have had it 20 years.

Both items look like they have LCDs. They are certainly flat.

This mornings tests show that it is again intermittent. Initial turn on it
was ok then shortly after it mirror'ed.

I will poke around inside and look for a mirror pin voiding the cal
sticker. Oh well.

Justin

I
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