Re: Use of digital oscopes when testing vector boards?

I used a Rigol DS1102E to capture these images.
http://forums.arcade-museum.com/showpost.php?p=2012191&postcount=4
It does have an XY mode; I captured these with infinite persistence enabled.

You are correct; the Rigol does not have a Zinput.
John

From: David Shoemaker
Sent: Monday, July 23, 2012 1:26 AM
To: vectorlist@vectorlist.org
Subject: VECTOR: Use of digital oscopes when testing vector boards?
I have a couple of old analog scopes (A tenma and a tek). The Tenma controls are getting tired and they are both kind of big to lug around to the back of a game. I picked up a Fluke scope meter 105b but it appears to not have an XY mode L

I am thinking about getting one of the newer digital units (much more portable).

Things like:

Atten

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=320949414562+&item=320949414562&vectorid=229466

Rigol

http://www.ebay.com/itm/Brand-New-Rigol-Digital-Storage-Oscilloscope-DS1102E-100MHz-1Gs-S-2-Channels-/160848727649?pt=BI_Oscilloscopes&hash=item257354ce61

Or a used Tek:

http://www.ebay.com/itm/Tektronix-TDS-1002B-/300746471312?pt=BI_Oscilloscopes&hash=item4605e2f790

I borrowed a TDS220 to try and the display from a battle zone was chunky but you could tell that the board was running. Couldn’t really read the rom error numbers.

I don’t see any of these having a z channel which would make them more useful for vector testing (to blank the display when beam is moving from line to line).

The Atten and Rigol are both color models and they all appear to have the same 320x240 resolution.

Any recommendations? Or opinions?

Thanks,

David

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Received on Mon Jul 23 03:03:29 2012