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You are very welcome Chris. It was good meeting you as well and Rascal enjoyed your company!

Good luck with your new found abilities! :rolleyes: I don't think that box can be closed...

When you are ready to be adventurous, call me. I've been doing this for years and was a US Navy electronics technician back in the day.

Great! Once you get it, if you call me, I will walk you through testing the transistors.

Do you have a way to check the transistors and to replace the fuse?

Those are the correct fuses. I suspect your existing cables are probably ok, but check the traces at the ends of the cables for any damage.

Yes. Otherwise, you may just blow the fuse again. It's a simple test and will get you running quicker. What kind of fuses did you get, and hopefully more than 1?

Then you definitely have a blown fuse. It would be best to determine if there is further damage before replacing the fuse. The output transistors need to be checked first, because if one of those is shorted, you will only blow the fuse again. You will need a multimeter to check them. To...

When you did this, did the black/cyan head stop printing? I presume you swapped the cables in pairs without crisscrossing the cables in each pair.

I can guide you through how to check the fuses and output transistors. Call me at the number in my signature. It will be easier to talk you through it than explaining it here.

This should help. And be sure to use a long PH1 (not a #1) Phillips screwdriver so you don't hit the dampers and break the manifold post. Also, you don't need to tighten screw #1, the middle screw, until you finish the bias and vertical alignments. Don't forget to enter the head rank and clear...

You are very welcome!

Your magenta/yellow head is failing. Time to replace it. No point in head soaking, as the magenta streaks in the yellow indicate the magenta channel is having firing issues, so the problem is electronic in the head, in my experience. Replace the dampers at the same time. You can go into service...

Also, never remove an ink cartridge from the printer with the power on, as it resets the front panel ink level counter. It will not cause any issues and will still stop when out of ink, but it will mislead you as to how much ink is remaining in a cartridge.

The fill test prints a color bar from each color individually, usually at a standard print setting. Not to be confused with an ink fill. Keep the existing cartridges in the printer. You'll see...

First, to start to isolate the cause, run the fill test in service mode and see what it looks like. Please post your results, along with a nozzle test print done immediately after finishing the fill test. Do not do a cleaning in between the 2 prints.

Does your printer show anything on the display when you try to turn it on? If not, check the main power fuses that feed the power supply. Be sure the printer is unplugged before doing this.

My mistake on the potential issue - the VP-540i uses the RS-540 mainboard, which does not have the same network issue as the VP-540.

I'm presuming you will do a power clean to charge the dampers. There are only 2 ways I can think of with the DX7 heads. One, while it is pulling ink (when the head is over the capping station), which for any air bubbles in the ink lines. I would shine a bright light on the lines at the print...

Just this... Not just DX7 dampers, but ALL dampers.