Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: bigmac on 18 August 2010, 18:56:20
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Hi guys a couple of our members on vec c have a problem with there NCDC's basically its not showing them where there meant to be on the sat nav.
If they go into test mode it shows their position correctly but in navi mode it doesn't any idea ?
GPS Signal is green btw
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How far out is it? Is the inserted map valid for the area? Worth a reset (CLEAR for 8s)
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One member has it showing about 14 miles out the other a few miles out both have up to date disc's
I will tell them to try a reset ;) cheers jaime
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Check also to see how many satellites you are receiving, if the answer is zero, then change the aerial
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That didn't solve it :( been told they receive 6 satellites on green
Its shows red when 3 satellites or less
it shows yellow when 4-5 satellites
One of them put in there home address and it started taking them in the wrong direction
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That didn't solve it :( been told they receive 6 satellites on green
Its shows red when 3 satellites or less
it shows yellow when 4-5 satellites
One of them put in there home address and it started taking them in the wrong direction
Sounds like the Gyro in the main unit has failed then
:'(
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Cheers Dave have you any idea where the gyro is on the main board ? picture would be nice
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Cheers Dave have you any idea where the gyro is on the main board ? picture would be nice
Sorry, long time since I`ve been inside one - we don`t tend to bother nowadays as parts are non existant to fix them, so no point us opening them up.
There are some others on here who have some secondhand bits though, I`m sure they will be along shortly
:y
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One of the guys has a complete unit for spares ;) just need to know where gyro is
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If you have a compete unit for spares, then just swap the whole unit !!
A lot easier than messing about with the gyroscope
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Would be easy if you knew where the main code board is i know where the changer board is that stores code but what about main unit
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I believe gyros are in vertical board where the little flylead from satnav aerial at back plugs into. I could be wrong though.
I know where codes are stored on these, but not sure if such info should end up in public domain :-X
Can they post up the 1st page of satnav diags screen, along with the precise location they were in at the time (to cross ref with a google maps), see if we can work out whats what.
Don't suppose they are near me?
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(http://danborg.org/vectra-c/180820101069.jpg)
(http://danborg.org/vectra-c/180820101064.jpg)
(http://danborg.org/vectra-c/180820101065.jpg)
(http://danborg.org/vectra-c/180820101066.jpg)
(http://danborg.org/vectra-c/180820101067.jpg)
(http://danborg.org/vectra-c/180820101068.jpg)
Ones in Denmark these are his pictures he has checked the co-ordinates with his tom tom and there correct but the navi screen doesn't show him in that position,the other one is south east area i think
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Looks like that car has moved between those screens....
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Nope all pictures are taken while stationary at home.
:(
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Nope all pictures are taken while stationary at home.
:(
Is the Long/Lat in P1 of the diags page correct?
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P1 Shows his work address but at the time of taking the picture he was at home,it seems it wont budge from his work address
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That didn't solve it :( been told they receive 6 satellites on green
Its shows red when 3 satellites or less
it shows yellow when 4-5 satellites
One of them put in there home address and it started taking them in the wrong direction
Sounds like the Gyro in the main unit has failed then
:'(
Do they realy have Gyro's in them ????
I beleive they use the SIRF chipset (phillips) - nothing goes wrong but if the signal is low they will give random readings
Looks to me like Poor gps signal!
Check AE connections - Also check the connections behind the drivers kick pannel, I'm fairly sure the antenna has a coupler there... or replace antenna with a new/known good'un
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Yes, they do have gyros in them and they work in conjunction with the speed pulse of the car to know how far you are travelling in a given direction - this information is then interposed upon a map and the navigation can then operate fully - every 30 seconds or so it will then confirm its location by means of a GPS signal.
Operating this way makes them exceptionally more accurate than the handheld units that only know their location from a received GPS signal.
;)
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P1 Shows his work address but at the time of taking the picture he was at home,it seems it wont budge from his work address
OK, check for a speed signal reaching the unit if the location doesn't change.
Also, try removing satnav disk, then removing ncdc for 3hrs, just to truely reset itself.
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Yes, they do have gyros in them and they work in conjunction with the speed pulse of the car to know how far you are travelling in a given direction - this information is then interposed upon a map and the navigation can then operate fully - every 30 seconds or so it will then confirm its location by means of a GPS signal.
Operating this way makes them exceptionally more accurate than the handheld units that only know their location from a received GPS signal.
;)
Cheers Dave, I love this site - I've learnt so much...
That would fall in line with the fault diag then - no speed signal ? - But then is s/o GPS that inaccurate ?, maybe with a poor sig as well, Umm.....
What was the cost of the unit new ? - guess I HAVE to buy a facelift now...