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GPO problem on the LK 204 45 PC

Posted: Fri Aug 01, 2003 11:45 am
by gb115b
I have the LK204-25-PC, and am coming across some problems using the GPO
to control my fans. I have built a circuit to clamp the appropriate GPOs
(as recommended in the manual), but when I turn on the GPO the fan starts
to run, but then stops. I used a 100 microfarad capacitor (as recommended
in the manual) and a 1n4001 diode, I'm trying to power 80mm Papst fans
(12V, 0.6 W) which work when directly hooked to the GPO, but not when
clamped.

can you offer any suggestions?
kind regards

Gautam Bhatnagar

P.S. tried to send this to matrix orbtal support but got a delivery failure from hotmail?

Posted: Sat Aug 02, 2003 5:58 am
by gb115b
you can delete this thread

and brand me retarded, I just realised that I've got the pinouts on the GPO's the wrong way round

however on my board the aren't marked - and the way the manual displays them is a bit confusing

Posted: Sat Aug 02, 2003 1:14 pm
by gb115b
aargh, remade the circuit with the same problem!!!

back to... any ideas?

Idem

Posted: Sun Aug 03, 2003 9:58 am
by Cyklope
gb115b wrote:aargh, remade the circuit with the same problem!!!

back to... any ideas?

A mi me pasa algo similar, tengo el mismo LCD el LK204-25-PC y cuando enciendo un GPO al cual esta conectado un c

Re: Idem

Posted: Mon Aug 04, 2003 6:08 am
by dtorner
Cyklope wrote:
gb115b wrote:aargh, remade the circuit with the same problem!!!

back to... any ideas?

A mi me pasa algo similar, tengo el mismo LCD el LK204-25-PC y cuando enciendo un GPO al cual esta conectado un c

Posted: Mon Aug 04, 2003 9:17 am
by gb115b
sorry, does that reply have anything to do with me?

I was using the LCD Test application downloaded from the MO site to test the GPOs

Posted: Mon Aug 04, 2003 9:56 am
by dtorner
gb115b wrote:sorry, does that reply have anything to do with me?

I was using the LCD Test application downloaded from the MO site to test the GPOs
Nope, sorry Gautam. I quote Cyklope post Because his problem is different. I can