forcefeed back help no feedback drives good

bigaw

New member
Joined
Jun 6, 2010
Messages
144
Reaction score
0
Location
Riner, Virginia
off road thunder drives good fuses not blown on board.works except no feedback.would this be motor problem.how do i check.how much voltage goes to motor.any help Please.adjusted on menue increases and decreases no affect in game
 
bump

also noticed when calibrating wheel turned to right wheel dont move but numbers go back and forth turned to left numbers stop in range
 
also noticed when calibrating wheel turned to right wheel dont move but numbers go back and forth turned to left numbers stop in range

Check the voltage coming from the transformer. The blue wires should give 36vac across the outside pins and 18vac from an outside pin to the center pin on both sides. If this fails, its the transformer.

If that's good, test the voltage coming from the Wheel driver board to the motor (disconnect the motor power cable and test across those leads coming from the board during the "test"... when the wheel turns one way, you should get approx 22vdc... when it goes the other way, it should change to -22vdc. If this fails, it's most likely something on the wheel driver board... If it's good, your feedback motor probably has an issue.
 
also noticed when calibrating wheel turned to right wheel dont move but numbers go back and forth turned to left numbers stop in range

I don't know much about the force feedback (Bullwinkle seems to have covered that well :)) but if your steering wheel pot has any abnormalities with incorrect ranges or the values "walk" on their own, then you probably also have a broken pot. alternatively, disconnect the pot from the wheel first and try turning it from one extreme to the other with your hand gently, see if the values flow smooth. figure out the min and max (should be 00 and whatever else... FF?) and just kind of do the math to figure out what the center is. then put it back in place and try calibrating again, assuming it works.

if the Off Road Thunder's anything like Cruis'n Exotica, of course. boy I can tell you stories about that game... broken pot = broken wrists (the wheel feedback would SNAP from left to right and back)
 
ordered new pot

thanks for help and all advice.OK here we go checked blue leads 20vac outside 10 vac middle so i checked motor leads 22vdc all time turning wheel manually can calibrate,adjust intensity,drive good no feedback. no test in menu just ajustments. book said turn wheel and should go back to center.wheel doesnt move any except Did notice when i turn machine on looks like wheel tries to move then quits. dont know if board or motor
 
Last edited:
thanks for help and all advice.OK here we go checked blue leads 20vac outside 10 vac middle so i checked motor leads 22vdc all time turning wheel manually can calibrate,adjust intensity,drive good no feedback. no test in menu just ajustments. book said turn wheel and should go back to center.wheel doesnt move any except Did notice when i turn machine on looks like wheel tries to move then quits. dont know if board or motor

OK... that's not enough voltage. check this document:

http://www.happcontrols.com/midway/Offroad_Thunder/27/Ch4_Wiring_OffRoad_27.pdf

if you check the 3rd page (power wiring diagram), the top left of the page (portrait) shows Transformer t1, which shows 3 wires on the transformed side (Blue/Blk at 36Vrms, Blue at CT and Blue/White at 36Vrms).

The Blue at CT means center tapped, so when you check voltage coming out of the transformer, you should be getting 36VAC when testing across the two outer leads and 18VAC when testing from either outside lead to the center lead. Sounds like your transformer has a problem

My guess is, because it's not producing enough power, it cant generate the negative voltage required to spin the wheel the other way.

In any case, if all you're getting is 20vac across the two outer leads, you need to replace the transformer.

I had to replace one in my C.S. and used a 36VCT 4amp transformer only because I find absolutely no information on what amperage rating these should be and 4 amps is probably overkill, but better to be safe than sorry. (underamped transformers could get extremely hot and fail or worse, cause a fire).

hope this helps,

-tom
 
no feed back

replaced transformer and wheel motor still no feed back next going to replace wheel driver board if i can find one.
 
replaced transformer and wheel motor still no feed back next going to replace wheel driver board if i can find one.

At this point, verify that you now have 36vac (18vac to the center). Once verified, unplug the motor and put the test leads there, you should now get 20 to 22vdc during test mode one way and -20 to -22vdc when the wheel is suppose to spin the other (this is an assumption that it uses the same voltage as california speed. Where the manual does not mention it, I'm guessing that it is). This will tell you if the issue is with the wheel driver board or the motor.

Cali speed has a test mode where you hold the start button and it initiates the feedback test by spinning the wheel back n forth. I typically get my son to hold the button while I put the meter to the plug. Not sure if ORT's test mode is the same or not, but you definitely want to grab readings when it's attempting to turn the wheel.

Good luck.

-tom
 
If he was getting 20v out of the board before, that should have turned the motor to the right.... maybe he didn't measure right and missed the -20... either way, he should be getting some sort of movement. Sounds like it could be as simple as the wiring from the motor board to the motor.
 
will post when get everything checked

thanks everyone for help hard drive acting up sent back waiting on new one when i get every thing checked out will post .only thing wont be replaced yet is wheel driver board dont know where to get one
 
Back
Top Bottom