<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">I have a few Sun2's and only one working ECL monitor (that needs recapping). Another ECL monitor does not work and I am not knowledgeable enough to fix it.</div><div class=""><br class=""></div><div class="">So I looked into Antoni Sawicki's <a href="https://github.com/tenox7/tenoxvga" class="">TenoxVGA project</a>. I had 10 PCB's made (as 1 is not really cost effective - what is left I will sell via Tindie). But, it has a DB15 input connector that's used on the Atari TT instead of a DB9 connector as used on the Sun2.</div><div class=""><br class=""></div><div class="">I dig a lot of digging and there's not much information. It took some time to get the schematic from the TenoxVGA and it doesn's say what pin is what, but to an extend that can be deduced from looking at the schematic. My guess:</div><div class=""><br class=""></div><div class="">Sun DB9</div><div class="">1 +ECL</div><div class="">6 -ECL</div><div class="">5 GND</div><div class="">3 HSYNC</div><div class="">4 VSYNC</div><div class="">8 SYNC return</div><div class=""><br class=""></div><div class="">DB15 TT (input on TenoxVGA)</div><div class="">4 +ECL</div><div class="">9 -ELC (goes to GND via resistor)</div><div class="">5 GND</div><div class="">10 GND</div><div class="">15 SYNC return (goes to Vcc and GND both with resistors)</div><div class="">HSYNC 13</div><div class="">VSYNC 14</div><div class=""><br class=""></div><div class="">DB15 VGA (output on TenoxVGA)</div><div class="">1, 2, 3 RGB (hooked up to +ECL)</div><div class="">5, 10 GND</div><div class="">6, 7, 8 GND (RGB return)</div><div class="">13 HSYNC</div><div class="">14 VSYNC</div><div class=""><br class=""></div><div class="">I made a DB9<->DB15 cable, crossed my fingers and hooked it all up. The is an image! So a) the PCBs work b) the sync signals are coming through.</div><div class="">But, the image show a sort of vague raster in the background. There's a bright vertical line at the beginning of the scan lines (the image is too far to the right). I am using an Extron RGB-HDMI 300A to get a 'clean' VGA signal I should add. (That detects the correct resolution coming in.)</div><div class=""><br class=""></div><div class="">Does anybody have experience using the TenoxVGA on a Sun2 and can confirm the pinout?</div><div class=""><br class=""></div><div class="">Walter.</div><div class=""><br class=""></div></body></html>