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F18A Screen Went Green


slinkeey

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I think that it is the header cable.

 

I was using my TI-99, and all the sudden the screen got a Green Hue.

 

I tried a new monitor. Same.

I tried a different cable. Same.

 

I think that it might be the header cable because I can get the normal colors if I wiggle one of the cables.

 

Does this use a standard VGA header cable?

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I'm not sure what a "standard VGA header" is, but I did not make it custom if that's what you mean.

 

You can remove the screws from the 15-pin SUB-D connector and slide the plastic shell back away from the connector and check if one of the wires broke.

 

This is the cable I supply with the F18A:

 

http://www.pccables.com/07129.html

 

The wiring is straight through and pins 1,2,3 are R,G,B respectively. Pins 13,14 are HSYNC,VSYNC. The rest are either ground or not connected.

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  • 2 weeks later...
  • 1 month later...

It seems that the header cable is not fully isolated. Another user of our group and myself experienced some shortcuts when the metal shield of the mainboard gets pushed onto the header cable.

It is easily fixed with some tape over the red spot that is marked in the photo.

 

Thanks goes to Gerhard W. for finding out the source of the problem on his machine. Once it happend on my 99er as well, it was an easy fix.

 

post-27826-0-74110800-1419882846_thumb.jpg

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