Re: Using an oscope as a monitor

From: Joel Griffin Dodd <griffindodd_at_gmail.com>
Date: Sun Oct 20 2013 - 19:22:34 EDT

Yep nothing I do seems to show the image without holding down find beam.
And qhen the image does show its not the image on a regular monitor
On Oct 20, 2013 1:00 PM, "Rodger Boots" <rlboots2@gmail.com> wrote:

> Try putting trigger on LINE. Not really ideal, but scope may be blanking
> and this would give it something to trigger on to force it to unblank.
> On Oct 20, 2013 2:18 PM, "Joel Griffin Dodd" <griffindodd@gmail.com>
> wrote:
>
>> Thanks guys, I managed to get this, but only by continuously holding down
>> find beam...
>>
>> https://www.dropbox.com/s/57qhj420d7yydxo/Star%20Wars%20lives.mp4
>>
>>
>> On Sun, Oct 20, 2013 at 11:05 AM, IAN EURE <ieure@mac.com> wrote:
>>
>>> On Oct 20, 2013, at 10:12 AM, Joel Griffin Dodd <griffindodd@gmail.com>
>>> wrote:
>>>
>>> > I'm tryjng to use my oscope as a vector monitor to check my star wars
>>> boards.
>>> >
>>> > For those of you that do this coild you tell me your settings. I have
>>> a 100mhz 2 channel tektronix 2337 and 1x - 10x 100mhz probes.
>>> >
>>> > I set the scope to XY input and see the trigger light on but can't
>>> seem to get any image. I have plenty of activity on my x and y outs on my
>>> board. Also do I ground my probes to the board when doing this
>>> >
>>> Yes, if your probes have the ground clips, you need to put those onto
>>> ground test loops. I don't know about Star Wars, but there are a few ground
>>> test loops around the vector output section of Tempest boards.
>>>
>>> Otherwise, most Tek scopes have a banana plug where you can plug in a
>>> ground, you can connect that to any ground on the PCB.
>>>
>>> Without ground, you will get an image, but it will be distorted and move
>>> around instead of steady.
>>>
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>>
>>

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Received on Sun Oct 20 19:22:37 2013

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