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Thread: HP 8935 / Agilent 6380A video output to VGA display?

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    Question HP 8935 / Agilent 6380A video output to VGA display?

    I was just looking at the ports on my HP 8935 and noticed it has a video out port. Does anyone have any ideas on if it's possible to adapt or convert this so I can connect it to a VGA display?

    The manual provides this detail about it:
    VIDEO OUT
    This connector provides a signal for using an external video monitor. The signal providesa duplicate of the Test Sets screen.

    Operating Considerations
    The CRTs Video Output drives a multisync monitor at 19.2 kHz (analog). Examples ofthis type of monitor include the Electrohome ECM 1410-DMS 14-inch color monitor andthe EVM 1242-P4VID 12-inch monochrome monitor


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    I think that Sony made a multi scan adaptor that can interface this scan rate.

    Sent from my SM-T350 using Tapatalk

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    There are people who have used the FPGA based GBS-8219 video converters on eBay to interface the HP units to various larger monitors. I believe that there are also cheaper non-enclosed versions of the board that work, perhaps with a modification or two.

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    Quote Originally Posted by LA_XTS View Post
    There are people who have used the FPGA based GBS-8219 video converters on eBay to interface the HP units to various larger monitors. I believe that there are also cheaper non-enclosed versions of the board that work, perhaps with a modification or two.
    Thanks for the info!

    Any idea what the model of the cheaper ones are? I looked up the GBS-8219 and it's $152, a little more than I'd like to spend to to connect it to a display.

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    Scan rate of 19.2KHz is close to the EGA standard 21.8KHz, you will struggle to find anything on the cheap side that will convert that signal to VGA.

    You could try those cheap arcade video converters however its highly unlikely they will work if your video source is digital, for $20 or so well worth a shot.

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    Quote Originally Posted by LA_XTS View Post
    There are people who have used the FPGA based GBS-8219 video converters on eBay to interface the HP units to various larger monitors. I believe that there are also cheaper non-enclosed versions of the board that work, perhaps with a modification or two.
    The GBS-8219 does the trick with the HP 8924C's scan rate of 19.2kHz. There's a bunch of information about there here --> https://groups.yahoo.com/neo/groups/...ry=scan%20rate

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    Quote Originally Posted by MattSR View Post
    The GBS-8219 does the trick with the HP 8924C's scan rate of 19.2kHz. There's a bunch of information about there here --> https://groups.yahoo.com/neo/groups/...ry=scan%20rate
    Thanks for that link! I didn't realize the 8924's used same scan rate. I read through the messages and have figured out what I need to purchase and build!

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    What did you decide on?

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    Another awesome resource for classic HP/Agilent gear: http://www.amtronix.com/aism.htm

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    There is a cheap box, available used that does this without a mod, I am pretty sure Sony made it.

    Sent from my SM-T350 using Tapatalk

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    My plan is to either find a deal on a DSC-1024G or HD or get a GBS1220 and make the necessary modifications to it.

    If anyone knows of something cheaper than a DSC-1024G that'll do the same thing, please let me know.

    I'm going to do some more research on it now that you guys have given me a starting point.

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    I was thinking of doing the same thing with my 2670 Service monitor, it has an EGA output, and so I picked up a couple of these on eBay, a quick search on Amazon yields this similar item - you can't beat it for $22!, it converts nearly everything to VGA. I haven't had time to try messing with them yet, I have heard mixed results from others who have tried them:

    https://www.amazon.com/Paddsun-Conve.../dp/B01IBJCAIG

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    I doubt those cheap boards will work on the R26XX series EGA.

    Usually requires the more expensive version used for the Industrial Monitors which have the higher resolution.

    Those cheaper boards usually needed a sync separator circuit as well to even work on the HP video ( that info is on the HP8924C forum )

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    the GBS8219 will work on either the R26XX EGA out or the HP Video Out .
    The GBS8200 will work on the HP stuff but many need a sync separator

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    Quote Originally Posted by RFI-EMI-GUY View Post
    There is a cheap box, available used that does this without a mod, I am pretty sure Sony made it.

    Sent from my SM-T350 using Tapatalk
    Unless someone knows the name of this cheap box, I'm going to buy a cheap V4 GBS-8200 and cross my fingers that it will work. I've found the modification info for it on the 8924 group.

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    Could anyone possibly post the SyncSeparator.pdf file from the 8924c yahoo group? I've applied for membership three times there and it eventually expires and says it wasn't accepted.

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    It's only 1 single page so I'll post as a JPG...

    SyncSeparator.jpg

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