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Are the yellow, white and green wires going to pins on Freddie? It's hard to tell since the photo is so small. I'm surprised to see the oscillator still at the bottom corner of the motherboard, too, since VBXE should now supply the clock. Can you post a larger photo?

 

EDIT: Also note that on most white VBXE boards, the master clock crystals are in the wrong place: i.e. PAL is on the NTSC jumper position and vice-versa.

Edited by flashjazzcat

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Are the yellow, white and green wires going to pins on Freddie? It's hard to tell since the photo is so small. I'm surprised to see the oscillator still at the bottom corner of the motherboard, too, since VBXE should now supply the clock. Can you post a larger photo?

 

EDIT: Also note that on most white VBXE boards, the master clock crystals are in the wrong place: i.e. PAL is on the NTSC jumper position and vice-versa.

 

 

I reversed the NTSC/PAL clock jumper and I get a picture now with J6 hooked up, but it is jumpy and garbled. Maybe I need to take the crystal off the motherboard then.

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Took off the crystal from the mainboard and now I get output from the standard monitor port with the VBXE powered and connected. This was in conjunction with swapping the NTSC/PAL jumper to PAL.

 

Now I'm going to hook up the RGB output to the SC1224.

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Hacked together a quick and dirty DIN13 connection for the SC1224. Took sync from pin15 of the 4050 and tied it to HSYNC and VSYNC in the DIN13. Connected RGB and GND from the vbxe header and viola! Crystal clear picture on the SC1224. :)

 

I'm going to put a proper flush mount DIN13 in place of the old monitor jack as some others have done before I close it up and call this project done!

 

vbxe_running.jpg

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