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LK202-24-USB Rev 1.4 (MX212) - Advanced GPO 1 Shorted
Posted: Mon Nov 10, 2003 5:23 am
by Rokin
Hi..
I have GPO 2 & 3 working fine. But I cannot get any fan to work on GPO1.
I measured the volts from each of the GPO's,
GPO 2 & 3 supply a steady 12V
GPO 1 supplies 12V when the PWM is 0, but the volts drop as I increase the PWM, at PWM = 100 im getting about 7V.
If I dont set the PWM and just turn the GPO on, volts drop from 12 directly to 7 as the display starts.
**************** update **************
My friends taken a look, and tells me I've probably shorted it out, damn
Is there anyway to get a replacement transistor ?
Paul Howarth
Re: LK202-24-USB Rev 1.4 (MX212) - Advanced GPO 1 Shorted
Posted: Tue Nov 11, 2003 7:18 am
by japer
Hello, I have similar problem with MX200 (aka LK202-24-USB Rev 1.4) if you will, you can read more
here and
here. However as you'll be reading, I'm still awaiting another response from M.O.H.Q. So maybe I was helpful.
Posted: Wed Nov 12, 2003 11:58 am
by Henry
OK, we are getting to the bottom of this, the first link VK202-24-USB is a unrelated problem, we have done firmware updates and are testing them right now... we will most likely be sending out replacement displays (bare units as I'm sure most of you are inteligent enough to swap a display out with out a three page manual)... I'll keep you informed as to the developments here... sorry for the delay... but we'll get it all sorted out...
Posted: Wed Nov 26, 2003 6:38 am
by japer
OK, thank You Henry, You have probably a lot of work, so once more thanx for the reply.
Now, if I understand it cleary and well, this:
OK, we are getting to the bottom of this, we have done firmware updates and are testing them right now... we will most likely be sending out replacement displays (bare units as I'm sure most of you are inteligent enough to swap a display out with out a three page manual)... I'll keep you informed as to the developments here... sorry for the delay... but we'll get it all sorted out ...
part of Your message is related to problems with the LK202-24-USB Rev 1.4 so it is for me too.
And this part:
the first link VK202-24-USB is a unrelated problem
is related to problems with the VK202-24-USB
and it's not for me.
It's correct?!?
Posted: Wed Dec 03, 2003 6:15 am
by japer
Can You answer please ...
Posted: Wed Dec 03, 2003 1:43 pm
by Miles
Can you contact me at
myero@matrixorbital.ca and we'll get this problem straightened out. Please give me a brief description to remind me who you are!!
Thanks
Posted: Thu Dec 04, 2003 1:09 am
by japer
Thank You, I have just send You an e-mail.
Posted: Thu Dec 04, 2003 10:02 am
by Miles
Thanks...very interesting...!! I can say that I have not seen this before!!!