Re: Using an oscope as a monitor

That looks about right (for having the beam finder button pressed).
Whatever range you have channels 1 & 2 set at is too low (for example, I
told you to try .5 V per division, obviously wrong, try 5 V and see what
happens). Have you turned the brightness up on the scope?

Beam finder does two things, it maxes brightness and it clips stuff that's
off screen to be on screen (the square you see).

On Sun, Oct 20, 2013 at 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 19:52:20 2013