CF-19 strange vci behaviour

Discussion in 'Panasonic' started by Liteace, Sep 21, 2017.

  1. Liteace

    Liteace Notebook Consultant

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    Here's one for you guys to work out. I've got a CF-19 MK6, I use it for vehicle diagnostic.

    I have several, for different manufacturer's, vehicles communication interface, the part that goes between the laptop (USB) and the vehicle & also a USB automotive oscilloscope, they all work perfectly apart from 1 that will only work if i use a yellow tabbed battery, all the other vci's and the scope are not fussed, they'll work with both blue and yellow tab batteries, any ideas?

    Thanks
     
  2. SHEEPMAN!

    SHEEPMAN! Freelance

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    On the computer side:
    1. USB 2 or 3?
    2. Does it use a split cable...one for data, one for power?
    3. On that particular vci, is the wire size smaller?

    Sounds like a feature is checking available current....or the current (amps) is not sufficient.

    I don't have a yellow tab available to check. Blue tab is 10.65V 5.7Ah.

    The engineering section should check in soon. :)
     
  3. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Some guy did a full write up on all CF 19 batteries......Pretty good post..

    http://forum.notebookreview.com/threads/different-cf19-batteries.778760/#post-10045715

    CF VZSU48--Blue tab...10.65v--- 5.7Ah
    CF VZSU48U---Blue tab--10.65v--- 5.7Ah
    CF VZSU50---Green tab...Hazardous Location battery---Reported by web site as for mk1-mk4
    CF VZSU48CJS--Orange tab--Japan only ..CF-19 mk6 later??...-10.65v--5.7Ah
    CF VZSU58U..Yellow tab--11.1v---5.6Ah--For mk4 and later?-Sold with laptop only not sold separately.
    CF VZSU50W..No label info found yet..
    CF-VZSU48R.. China Only---10.65V---5.7Ah
    CF-VZSU48JS...No label info found yet..
     
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  4. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    What about with the laptop plugged in? Does the battery type matter then?
     
  5. SHEEPMAN!

    SHEEPMAN! Freelance

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    11.1 Volts on the yellow tab. Interesting.
     
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  6. Liteace

    Liteace Notebook Consultant

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    It's usb 3 port I'm using on the side of the CF, ive also tried the rear USB port but it does the same.

    The vci is very old so will only use USB 2, i use the same USB bosch cable for all the vci's and the scope, it's just the same as a standard USB printer cable

    I think you maybe correct when you say about the current not being sufficient.

    Ive never tried it on mains power, if, when Ive got time ill give it a go. only got 1 yellow tab battery and 3 blue tabs.

    Do you think a double ended usb cable would do the trick so it's using power from both USB ports?

    Thanks
     
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  7. CWB32

    CWB32 Need parts for my flying saucer.

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    hmmm ...
    yeah , i am leaning toward a "current limited" problem ... although , it does not explain why there would be a negotiation difference between batteries when it comes to the usb port current limiting .
    check back in the power management section ... make sure that the usb port power is set to the *rock-n-roll* mode .
    you might be able to use a "Y" cable ... i would make one and use only the +5 and ground (not data negative) on the second connector ... this will eliminate any possibility of data collision/cornfuzzling .
     
  8. Liteace

    Liteace Notebook Consultant

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    Power management in the bios or in Windows settings?
     
  9. CWB32

    CWB32 Need parts for my flying saucer.

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    yep ...
    try the easy stuff first .
     
  10. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    I just had an idea. Plug one of these in. Then plug the devices into it, and see what is really going on.

    [​IMG]
     
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