Main > Driving & Racing Cabinets
what servo amp for happ hack?
brad808:
Couple things to check.
1) Does the wheel actually work in windows? If not you may have problems with the potentiometer not registering correctly. You may even have bad calibration
2) Double check to wiring make sure the motor outputs from the logitech wheel are going to pins 4,5 on the amc
3) Make sure you have the dip switches set correctly on the amc
3) Break out the multimeter and check the voltages. Unplug it from the pc and then plug it back in, don't open any programs and measure where the voltages are coming to the amc and leaving the amc. This will also show you if you need to adjust the offset
Out of curiosity how did you fit the sega gear onto your happ motor?
Brian74:
It should be one of those two things (or both).
Is the potentiometer you're using in the arcade wheel the same value as the original logitech one?
Does the onscreen wheel movement in windows calibration (under game devices) correspond correctly to turning of the wheel?
The one in the donor was a 10k pot. I tried using one but it did not register in the game controller calibration. I know if brad's post he used a 100k pot so I tried that and it worked.
1) Does the wheel actually work in windows? If not you may have problems with the potentiometer not registering correctly. You may even have bad calibration
After I changed to the 100k pot it works fine. I am using the same donor wheel you did.
2) Double check to wiring make sure the motor outputs from the logitech wheel are going to pins 4,5 on the amc
They are going to 4 and 5.
3) Make sure you have the dip switches set correctly on the amc
1,3,5 on rest are off
3) Break out the multimeter and check the voltages. Unplug it from the pc and then plug it back in, don't open any programs and measure where the voltages are coming to the amc and leaving the amc. This will also show you if you need to adjust the offset
Ok I will give that a try
Out of curiosity how did you fit the sega gear onto your happ motor?
I took it to metal shop and had them put a bushing in it. Cost me 45.00
brad808:
You shouldn't have to change the value of the original donors pot. Are you sure it wasn't 100k already? It will say 10 and then to the right of it you'll see a number 4 indicating 4 zeros after 10 (100 000 ohms or 100kohm.
The rest sounds right. So next step check the voltages that will tell you a lot and start adjusting the 12 turn pots on the amc
Sent from my Desire HD
ABACABB:
--- Quote from: brad808 on June 13, 2012, 10:32:41 pm ---You shouldn't have to change the value of the original donors pot. Are you sure it wasn't 100k already? It will say 10 and then to the right of it you'll see a number 4 indicating 4 zeros after 10 (100 000 ohms or 100kohm.
The rest sounds right. So next step check the voltages that will tell you a lot and start adjusting the 12 turn pots on the amc
--- End quote ---
So I can use the pots from my donor wheel (which I don't have yet, it's on order) for both the wheel and pedals? No need to order new pots?
Brian74:
The donor pots are to small to use. You have to replace them with bigger pots of the same value.
You shouldn't have to change the value of the original donors pot. Are you sure it wasn't 100k already? It will say 10 and then to the right of it you'll see a number 4 indicating 4 zeros after 10 (100 000 ohms or 100kohm.
Your right Brad it was a 100k pot.
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