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Old 06-14-2006, 03:33 AM
Join Date: Jun 2006
Location: germany
Posts: 8
Rolli5M is on a distinguished road
MKIV broken, help needed

Hi to all,
this is a very nice forum.
To my problem. I have a MKIV, which had problems in reading DVDs (allways rebooted). Having an old software version, I hoped that upgrading to V27 will help. Now I found out, that no update CD could be read. My first idea was, that the drive within the laser has a problem. But now I changed the drive inside the unit with a working one, an the same happened. The MKIV could be diagnosted by DIS, and it seems that there is no error (no faults are stored). The unit says, that software has to be reloaded (like in thread : "Nav OS CD stuck!!!" Message is : "Loading software required ..." ). It doesn't matter, which update CD is loaded (I tried V22.1, V25, V27 ..., which are working in other units), the CD will be moved out after while (the laser head is working for a while) and the message is "incorrect disc, please insert correct disc".

Now three questions :
1. Had anybody such a problem already, and what was the solution (Calvin Tan changed the whole unit)
2. Is there a basic software disc, which has to be loaded first ?
3. Is a schematical drawing or diagram available for the MKIV unit ?

best regards
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Old 08-11-2006, 03:49 AM
Join Date: Mar 2006
Location: NYC
Posts: 4
sfm5 is on a distinguished road
You were able to find a replacement DVD drive for the Mk4 unit? I have similar problems, and have always suspected the drive. I can read CD's fine, but not DVD's. Where did you get your replacement DVD drive?

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Old 08-11-2006, 04:10 AM
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JV JV is offline
Join Date: Mar 2005
Location: DC
Posts: 5,012
JV is on a distinguished road
Are you sure you have a good copy of the Nav OS? Similar things have happened to people who've tried to load a software update that wasn't burned correctly, improper format, etc.


What gets us into trouble is not what we don't know...it's what we know for sure that just ain't so
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