More fun and games with the bloody Sargent in the Autotrail

Discussion in 'Motorhome Chat' started by Jaws, Oct 20, 2014.

  1. Jaws

    Jaws Funster Life Member

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    Started when Nemo popped in to say the step was out.
    Went round, blipped the blipper and in it popped.. Thought I had just forgotten to lock it and set the alarm.
    Two days later it is out again !
    Started to investigate.
    Found the step button did not work but turning on the inside entry light operated the step !
    Also noticed that when I opened up the van on the remote the external light did not come on.

    Last night could not sleep for thinking about it.................

    This morning I went out and went straight to the only thing that I could figure was common to all the issues.
    That stupid ( with a capital STU !! ) extra control box that is fitted with the Sargent system.. The EM50

    Undid it and lifted it out.. As I did it the step started acting like a sodding semaphore flag..

    Removed all the plugs and refitted..
    Everything started working as it should..
    Not having the time or the inclination today I left it at that, but I reckon it was not a bad plug joint but a bad solder joint on the actual board somewhere...
    I can see I am going to have to remove the unit at some time in the near future, remove the board and go over all the damned solder joints to find it..

    One thing is sure about the Sargent system.. It does keep me busy and my interest piqued !
     
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  2. Mike B

    Mike B Funster

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    So, you would recommend it then? :)
     
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  3. Jaws

    Jaws Funster Life Member

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    Yes.. if you are in to chinese puzzles and weird conundrums !
     
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  4. Sunsets Unlimited.

    Sunsets Unlimited. Funster

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    Hmmm,

    As a fellow Auto-trailer and hoping you don't mind me commenting on your bus step. I would just like to say, we got similar problem with ours, so,,, thinking long and hard, but not too hard, I decided to go out, buy a double step and tie the Bus step back with a cable tie,,,,, and then had another beer.! Sorted.!!

    Seeing what you have said about the EM50 I think I will give it a try.

    Thanks for the info.

    Mike. P
    Sunsets Unlimited.
     
  5. tonka

    tonka Funster Life Member

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    There is a known issue with a faulty batch of "polyfuse" in some Sargent panels.. Creating an issue with step operation.
    This does not sound like that problem BUT may be worth checking with Sargent as they could tell you if your unit is one of the suspect batch..
     
  6. SC 05 OUT

    SC 05 OUT Funster

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    What's am em50? Is it only fitted to the newer psu's ive not noticed one in mine. I've got the 2007 psu unit (note to others this deos not denote the year but the type of psu)
     
  7. jenny and mitch

    jenny and mitch Funster

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    When we had a similar problem with our step I did the same as you and narrowed it down to the EM50 and found a little bit of "furring" on the 'jumpers' that pull out to change the configuration..
    As you have done, I pulled them out and put them back and that was it.....The only other thing that springs to mind is that our table is stored right behind the two switches ( step and inside entry light) They haven't got shorted together have they ?? Good luck. Mitch.
     
  8. Jaws

    Jaws Funster Life Member

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    You will have one somewhere... It is not where you expect it to be !
    What model charger do you have fitted ??

    Anddddddddd

    for all those with a similar problem, I offer these words ..

    CHIP CREEP !!!!

    Not 100% sure yet but I think that is what the problem was.

    Disconnect the leisure batteries
    Turn the unit over.. and look for a couple of 16 pin chips in carriers ( see note )
    Mine had suffered cheep creep and were trying to exit their carriers.
    A firm push down on them reseated the buggers and so far no more weird happenings

    NOTE
    In general I have found the Sargent system extremely well made if, as mentioned add infinitum, vastly over complicated.
    However, mounting chips in carriers in a mobile environment that will have massive temperature changes is, in my opinion ( and with my electronic design engineer hat on ) the most stupid thing possible.
    Quite obviously the chips ( proly simple TTL logic things ) have in the past caused failures.. It is very nice to mount them in carriers so fixing the panels is nice and easy, but sorry, these things are built for a VERY specific use and with the carriers are not really fit for purpose.
    Come a bored moment I will remove the carriers and solder the chips in properly ( not something most folk can do I appreciate but def something that should be considered if you have the skill set )
     
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  9. SC 05 OUT

    SC 05 OUT Funster

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    errmm

    I've got the 2007 psu unit (note to others this deos not denote the year but the type of psu)
     
  10. Badknee

    Badknee Funster

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    Is this unit used to power/control all electric steps or confined to Autotrail do you know please?
     
  11. Jaws

    Jaws Funster Life Member

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    Ahh.. the update from the 200 jobby.. Forgot about that one.
    Depends on the year of the Scout in that case
     
  12. Jaws

    Jaws Funster Life Member

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    No idea.. It is used for all sorts of stuff on all sorts of models
     
  13. SC 05 OUT

    SC 05 OUT Funster

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    year of reg 2005
     
  14. Jaws

    Jaws Funster Life Member

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  15. cruiser

    cruiser Funster Life Member

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    ive got a metal step. no chips. but a couple of cracks.
     
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  16. gibbon

    gibbon Read Only Funster

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    Jesus Christ!!!!
    I've just read all this, just for something to do. How complicated does a step have to be?
    Why does it have to be controlled by a Sargent unit with it's associated complexities?
    My old Cheyenne has a manual step which unfolds with no real effort at all, apart from reaching to it with a hand. A little tap in the right place with your foot & a spring takes it back into its parking place. Simple!
     
  17. gibbon

    gibbon Read Only Funster

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    Jesus Christ!!!!
    I've just read all this, just for something to do. How complicated does a step have to be?
    Why does it have to be controlled by a Sargent unit with it's associated complexities?
    My old Cheyenne has a manual step which unfolds with no real effort at all, apart from reaching to it with a hand. A little tap in the right place with your foot & a spring takes it back into its parking place. Simple!
     
  18. gibbon

    gibbon Read Only Funster

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    Jesus Christ!!!!
    I've just read all this, just for something to do. How complicated does a step have to be?
    Why does it have to be controlled by a Sargent unit with it's associated complexities?
    My old Cheyenne has a manual step which unfolds with no real effort at all, apart from reaching to it with a hand. A little tap in the right place with your foot & a spring takes it back into its parking place. Simple!
     
  19. gibbon

    gibbon Read Only Funster

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    Sorry about the multiple posts. In France with a very slow internet. Please ignore two, or indeed all of them .
     
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  20. B-well

    B-well Funster

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    buy a Hymer and you get a handle, no chips or scratches just a solid clunk
     
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