Problem with VK204-25V

Cyndrax · Post by **Cyndrax** » Sun Mar 03, 2002 6:11 pm

Okay,
So I just installed my new MO VFD, and I can't seem to get it to work. I used the power cable and serial cable that I purchased from here, so there shouldn't be a cable problem.

I turned off and removed power to the computer, hooked the power cable up to a spare power cable hanging around in the computer, and hooked the serial cable to port 2.

I powered the computer back up, and believe I should see a flashing cursor at this point (correct?). Nothing at all, I tried using the demo program (set at 19.2 kbps) to send some text to the display. No dice.

What should I look at or try now?

Brian

firewars · Post by **firewars** » Sun Mar 03, 2002 11:04 pm

Well when I start it up, I just see it saying "Matrix Orbitals VF....", no flashing cursor at all.
This stays there until I send other commands to it.

Make sure you have that serial port enabled in the BIOS.

Cyndrax · Post by **Cyndrax** » Mon Mar 04, 2002 3:49 pm

I have the serial port enabled in the BIOS. Nothing at all comes up when I boot the computer. The screen just stays dark.

Brian

Post by **Henry** » Mon Mar 04, 2002 4:03 pm

Is your display a regular or wide voltage? what power are you applying to the VFD? what type of connector and what leads?

Cyndrax · Post by **Cyndrax** » Mon Mar 04, 2002 7:15 pm

It is a wide voltage model (from the AVS buy). I am using the power connector I purchased from MO, with the yellow and the black leads.

Brian

Cyndrax · Post by **Cyndrax** » Fri Mar 08, 2002 5:15 pm

Any thoughts Henry?

Post by **Henry** » Fri Mar 08, 2002 5:26 pm

do you have a multi meter? can you test if you are getting a good voltage before the voltage regulator and after?

Cyndrax · Post by **Cyndrax** » Wed Mar 20, 2002 1:14 pm

Okay, I finally tracked down a multimeter. What voltage should I be getting before and after the regulator. And if you don't mind Henry, could you post a picture showing where you want me to check.

Thanks
Brian

Post by **Henry** » Wed Mar 20, 2002 1:37 pm

+12V incoming... +5V after the power regulator.

Cyndrax · Post by **Cyndrax** » Wed Mar 20, 2002 2:23 pm

Okay, not to be a dumbass, but where on that picture should I be checking the voltage across. I understand how a multimeter works, but I am not the best with electronic components

Brian

Post by **Henry** » Wed Mar 20, 2002 2:26 pm

Check the power coming in, so from the power supply, or the Vin pin.

Zagon · Post by **Zagon** » Sat Apr 13, 2002 3:22 am

I am having a problem with my VFD2041. I don

Post by **Cheese** » Sat Apr 13, 2002 10:23 am

[quote]
On 2002-04-13 03:22, Zagon wrote:
I am having a problem with my VFD2041. I don

Zagon · Post by **Zagon** » Mon Apr 15, 2002 11:51 pm

thanks mate, it was wide voltage after all.