System Logic Question

[dcutugno]

advice: always use the same GND for all your systems in your sim ... this holds for every electronic system.

Nico

Thanks Nico, i have tried everything and out of ideas...I tried common ground, ground to a shell or pc-case, different power supply and always the same story when i start to illuminate the first annunciator light my pc speakers make noises.

Can you show the diagram how connected and the jumpers on USB outputs card?

This is very strange 'cause i didn't have any problem with other interfaces.

[AchillesP]

Hello Simmers,

Actually I have finished the logic of window heat. Here it is.
Open the default pmsys737.lgc and find those lines below.

WindowHeatSLOn = (WindowHeatSL or (Testheat = 2)) and transbus1
WindowHeatSROn = (WindowHeatSR or (Testheat = 2)) and transbus1
WindowHeatFLOn = (WindowHeatFL or (Testheat = 2)) and transbus2
WindowHeatFROn = (WindowHeatFR or (Testheat = 2)) and transbus2

WindowOverHeatSL = (testheat = 0) [.2]
WindowOverHeatFL = (testheat = 0) [.2]
WindowOverHeatSR = (testheat = 0) [.2]
WindowOverHeatFR = (testheat = 0) [.2]

Make all those lines unable using // like below
//WindowOverHeatSL = (testheat = 0) [.2]

Insert my below logic
//WINDOW HEAT (Start)
WindowHeatSLC1 = WindowHeatSL [150]
WindowHeatFLC1 = WindowHeatFL [120]
WindowHeatFRC1 = WindowHeatFR [120]
WindowHeatSRC1 = WindowHeatSR [150]
WindowHeatSLOnC1 = ((DayTime = 1) and (fsTAT > 32) and (fsRainType = 0))
WindowHeatFLOnC1 = ((DayTime = 1) and (fsTAT > 30) and (fsRainType = 0))
WindowHeatFROnC1 = ((DayTime = 1) and (fsTAT > 30) and (fsRainType = 0))
WindowHeatSROnC1 = ((DayTime = 1) and (fsTAT > 32) and (fsRainType = 0))
WindowOverHeatSL = ((testheat = 0) [.2]) or ((DayTime = 1) and (fsTAT > 32) and (fsRainType = 0) and (WindowHeatSLC1))
WindowOverHeatFL = ((testheat = 0) [.2]) or ((DayTime = 1) and (fsTAT > 30) and (fsRainType = 0) and (WindowHeatFLC1))
WindowOverHeatFR = ((testheat = 0) [.2]) or ((DayTime = 1) and (fsTAT > 30) and (fsRainType = 0) and (WindowHeatFRC1))
WindowOverHeatSR = ((testheat = 0) [.2]) or ((DayTime = 1) and (fsTAT > 32) and (fsRainType = 0) and (WindowHeatSRC1))
WindowHeatSLOn = ((WindowHeatSL or (Testheat = 2)) and transbus1) or (WindowHeatSLOnC1))
WindowHeatFLOn = ((WindowHeatFL or (Testheat = 2)) and transbus1) or (WindowHeatFLOnC1))
WindowHeatFROn = ((WindowHeatFR or (Testheat = 2)) and transbus1) or (WindowHeatFROnC1))
WindowHeatSROn = ((WindowHeatSR or (Testheat = 2)) and transbus1) or (WindowHeatSROnC1))
//WINDOW HEAT (End)

Find the line sixpackantiice = (fspitot = 0) or (testheat=0) and make it as below
sixpackantiice = (fspitot = 0) or (testheat=0) or WindowOverHeatSL or WindowOverHeatFL or WindowOverHeatFR or WindowOverHeatSR

And a short description what this does.
If it is summer and it is day and there is no rain and the tat is more than 30 Celcius, the on indicators comes on. If you open the switch an overheat will come after 2..3 minutes.. The overheat goes off after 2..3 minutes if you close the switch or if the tat is below 30 celcius (Means taxi with hi speed or in the air)

Hope you enjoy that.

Achilles

[737NUT]

advice: always use the same GND for all your systems in your sim ... this holds for every electronic system.

Nico

Does no good my friend. PWM is VERY noisey and when you share gnd's with it it only gets worse. I have fought it for 3 weeks! I know first hand. They are using cheap electronics and designs BUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

It is still worth the money!

[737NUT]

Thanks Nico, i have tried everything and out of ideas...I tried common ground, ground to a shell or pc-case, different power supply and always the same story when i start to illuminate the first annunciator light my pc speakers make noises.

Can you show the diagram how connected and the jumpers on USB outputs card?

This is very strange 'cause i didn't have any problem with other interfaces.

See my post above, the USB 64 card is a poor design (noise wise) but good for it's price. You must keep that in mind, you get what you pay for.

[Michael Carter]

Not generally a great idea, but my experience with studio recording equipment and 60Hz hum had me lifting every ground on every piece of gear until I found the culpret.

It happened to be a DBX 166 comp/limiter that was giving me the trouble. I would systematically start lifting grounds on your equipment until you find the offender.

Keep the fluorescent lighting away from circuits as well if you are using any under your glareshields on the older Boeings as I am.

[kiek]

Does no good my friend. PWM is VERY noisey and when you share gnd's with it it only gets worse. I have fought it for 3 weeks! I know first hand. They are using cheap electronics and designs BUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

It is still worth the money!

Well, I can tell you that I have no problems at all with OC cards (over 5 years). All my cards are connected to the power supply of my flightsim PC and hence share the same ground. I'm not using external power supplies.

Nico

[kiek]

Thanks Nico, i have tried everything and out of ideas...I tried common ground, ground to a shell or pc-case, different power supply and always the same story when i start to illuminate the first annunciator light my pc speakers make noises.

Can you show the diagram how connected and the jumpers on USB outputs card?

+5V and GND from the power supply of my flight sim PC goes to the connector bottom right (NOT the external option one).
JMP 1 = open
JMP 2 = closed (both pins connected by the jumper)

Nico