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Originally Posted by we350z
OK, again thank you for the excellent information. I would try GPS units in another car if I knew someone who was willing to let me test it. The two folks I approached on this forum who are local to me with NAV were not comfortable with this at all.
So... I think perhaps the TV idea is worth trying. How do I know if it's a multi-system tv?
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Look in your TV user manual & read the specs, look in the settings menu.
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Originally Posted by we350z
Does it have to be component input or can it be just single rca video input?
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Single RCA should give a pic
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Originally Posted by we350z
Only green will work because it has sync?
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Correct
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Originally Posted by we350z
How do the other two channels (R,B) work?
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Putting sync on all 3 x signals is redundant. The monitor only needs 1 x sync pulse. Hence sync is only on one signal.
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Originally Posted by we350z
Is it something special with regards to the boardmonitor?
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Nearly. Standard RGB signals have sync only one one signal. If you have a TV with YUV component signal input, connect the nav G to the Y terminal.
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Originally Posted by we350z
So on the blue connector pinout on the monitor harness (12 pin) which pin is Green?
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Blue connector:
Pin assignments at plug connector X1313
Pin Type Description / Signal type Connection /
Measuring notes
1 E Voltage supply terminal 30 Fuse F56
2 Not used
3 E/A I-bus signal line I-bus connector
4 Not used
5 E Navigation video signal, green On-board monitor
6 E Navigation video signal, blue On-board monitor
7 E Navigation video signal, red On-board monitor
8 Not used
9 A Audio signal AF+ Radio
10 M Ground Ground point
11 Not used
12 M Ground for LC monitor On-board monitor
13 Not used
14 M Shield On-board monitor
15 M Shield On-board monitor
16 M Shield On-board monitor
17 Not used
18 A Audio signal AF- Radio
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Originally Posted by we350z
So if WHITE means no video signals at all that would mean one of the following in order if what i think is least to most likely:
1) Both GPS units are not providing all 3 video signals (or will lack of only green signal cause white screen?)
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Possible. But I thought you said the Mk2 was working before you changed units? Thus highly unlikely that the Mk2 failled.
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Originally Posted by we350z
2) Wiring fault in wiring loom for all 3 video signals (or will fault on just green signal wire cause white screen?) Is there a good way to test these connections with the multimeter? I was getting funky voltage readings on these wires even with car battery disconnected using multimeter in conjunction with a 1.5V AA battery. How does the 18-pin blue connector at the GPS unit relate to the 12-pin blue connector on the monitor?!
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You may have not fitted a connector properly, or fitted the wrong connector. Refer to
http://wds.west.lv/release/en/index.htm for full wiring diagrams.
'funky' is not a technical term that I can relate to when discussing voltmeter readings. You would be best to describe what you were doing in a more factual and accurate manner if you want people to help you.
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Originally Posted by we350z
3) Problem with monitor (i.e. ribbon cable needs to be reseated - but would this not cause a blank screen?)
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Depends on what pins were making contact....
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Originally Posted by we350z
Another person from mp3car.com reccomended that I try powering up the display out of the car with no video input, if it stays white its definately a screen problem (makes sense), if it powers up but stays black then its not the display.
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I have no experience with this diagnosis method.
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Originally Posted by we350z
I am not sure how to do this, I assume i will need to supply a +12V and ground. Again I am unsure of the pinouts, is power supplied via white 12 pin connector, blue 12 pin connector or both!? I am thinking I might be able to accomplish this with an ATX power supply and/or computer case cables. I don't want to fry my stuff either lol  |
Refer to the WDS for wiring details.
If unusre, don't do it!