T300 Repair

Discussion in 'Sim Racing Hardware' started by camasaki, Dec 14, 2019.

?

Can this wheel be fixed?

  1. Nope

    0 vote(s)
    0.0%
  2. Yup

    100.0%
  1. camasaki

    camasaki

    Messages:
    16
    I naively bought a used, broken T300 wheel to try and repair it as a companion to my T500RS.

    As I don't have a T300 wheel I just fitted the T500 wheel for the moment assuming they're the same. Most of what I experience applies when the wheel is removed:

    What's working:
    • Wheel powers on when USB connects (internal PSU apparently OK)
    • Windows driver installed and recognises wheel
    • Firmware Update apparently successful
    • Red mode light appears
    • Tension of belt looks decent after adjusting
    • Cables int/ext look sound
    The switch is set to PS3.

    What's NOT working:
    • Wheel calibration routine kinda lamely runs through but not convincingly fast as compared to T500
    • Control Panel does not detect angle of wheel
    • Control Panel cannot apply any Force Feedback actions
    • No buttons react in control panel
    • Wheel kind jerks pathetically when turned
    So I'd like to start testing components and doing a diagnosis of what needs replacing.

    Ideas, guides, links welcome!

    My feeling is the main board is probably shot AND/OR the motor's position sensor is faulty.

    Where is the rotational sensor?

    What is the PCB mounted to the end (back) of the motor's axle?
    IMG-3262.JPG

    Also, the fan runs constantly which I guess is good for cooling but may indicate a faulty thermostat?
     
  2. super_gt

    super_gt

    Messages:
    4,039
    Location:
    Bulgaria
  3. camasaki

    camasaki

    Messages:
    16
    OK, so that's a Hall-effect chip sensing the motor position I guess. I wonder if that's replaceable...
     
  4. camasaki

    camasaki

    Messages:
    16
    Just tried the calibration software but it's getting nothing much done except a slight wiggle in the wheel.
    If I loosen the Hall sensor and wiggle it the wheel wiggles in time.
     
    Last edited by a moderator: Dec 14, 2019
  5. super_gt

    super_gt

    Messages:
    4,039
    Location:
    Bulgaria
  6. camasaki

    camasaki

    Messages:
    16

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  7. camasaki

    camasaki

    Messages:
    16
    Sounds a lot like this issue which was the motor:
     
  8. camasaki

    camasaki

    Messages:
    16
    After a teardown, test of PSU, and re-calibration* the wheel seems to now at least startup correctly and calibrate.

    * Calibration Software
     
  9. camasaki

    camasaki

    Messages:
    16
  10. asteroulis

    asteroulis

    Messages:
    111
    Location:
    Greece
    You need to replace the motor.
     
  11. camasaki

    camasaki

    Messages:
    16
    00:00.0] Start Motor Calibration (u=0.05).
    00:00.0] Waiting for Auto-Calibration...
    00:16.0] Helping the wheel to Auto-Calibrate (0.34527), Res:1...
    00:32.0] Helping the wheel to Auto-Calibrate (0.42303), Res:1...
    00:48.0] Helping the wheel to Auto-Calibrate (0.50080), Res:1...
    01:04.0] Helping the wheel to Auto-Calibrate (0.57857), Res:1...
    01:20.0] Helping the wheel to Auto-Calibrate (0.65633), Res:1...
    01:36.0] Helping the wheel to Auto-Calibrate (0.73410), Res:1...
    01:52.0] Helping the wheel to Auto-Calibrate (0.81187), Res:1...
    02:08.0] Helping the wheel to Auto-Calibrate (0.88963), Res:1...
    02:24.0] Helping the wheel to Auto-Calibrate (0.96740), Res:1...
    02:40.0] Helping the wheel to Auto-Calibrate (0.04517), Res:1...
    02:56.0] Helping the wheel to Auto-Calibrate (0.12293), Res:1...
    03:12.0] Helping the wheel to Auto-Calibrate (0.20070), Res:1...
    03:28.0] Helping the wheel to Auto-Calibrate (0.27847), Res:1...
    03:44.0] Helping the wheel to Auto-Calibrate (0.35623), Res:1...
    04:00.0] Helping the wheel to Auto-Calibrate (0.43400), Res:1...
    04:16.0] Helping the wheel to Auto-Calibrate (0.51177), Res:1...
    04:32.0] Helping the wheel to Auto-Calibrate (0.58953), Res:1...
    04:48.0] Helping the wheel to Auto-Calibrate (0.66730), Res:1...
    05:04.0] Helping the wheel to Auto-Calibrate (0.74507), Res:1...
    05:20.0] Helping the wheel to Auto-Calibrate (0.82283), Res:1...
    05:36.0] Helping the wheel to Auto-Calibrate (0.90060), Res:1...
    05:52.0] Helping the wheel to Auto-Calibrate (0.97837), Res:1...
    06:08.0] Helping the wheel to Auto-Calibrate (0.05613), Res:1...
    06:24.0] Helping the wheel to Auto-Calibrate (0.13390), Res:1...
    06:40.0] Helping the wheel to Auto-Calibrate (0.21167), Res:1...
    06:56.0] Helping the wheel to Auto-Calibrate (0.28943), Res:1...
    07:12.0] Helping the wheel to Auto-Calibrate (0.36720), Res:1...
    07:28.0] Helping the wheel to Auto-Calibrate (0.44497), Res:1...
    07:44.0] Helping the wheel to Auto-Calibrate (0.52273), Res:1...
    08:00.0] Helping the wheel to Auto-Calibrate (0.60050), Res:1...
    08:16.0] Helping the wheel to Auto-Calibrate (0.67827), Res:1...
    08:16.6] Wheel Auto-Calibration exit, can start to find the solution.
    08:18.8] Stall detected, retry (u=0.31).
    08:20.4] Stall detected, retry (u=0.57).
    08:21.9] Stall detected, retry (u=0.83).
    08:23.5] Stall detected, retry (u=0.09).
    08:25.0] Stall detected, retry (u=0.35).
    08:26.6] Stall detected, retry (u=0.61).
    08:28.2] Stall detected, retry (u=0.87).
    08:29.7] Stall detected, retry (u=0.13).
    08:31.3] Stall detected, retry (u=0.39).
    08:32.9] Stall detected, retry (u=0.65).
    08:34.4] Stall detected, retry (u=0.91).
    08:36.0] Not sure about the Direction, retry it...
    08:37.6] Not sure about the Direction, retry it...
    08:39.3] Not sure about the Direction, retry it...
    08:40.9] Stall detected, retry (u=0.32).
    08:42.5] Right Direction, place to center...
    08:46.1] Using u=0.3210 Result=1.651 (P:1.75, N:1.70, Delta=0.050)
    08:48.6] Using u=0.3930 Result=-0.018 (P:0.56, N:1.14, Delta=0.580)
    08:50.9] Using u=0.3680 Result=1.408 (P:1.43, N:1.46, Delta=0.023)
    08:53.5] Using u=0.3430 Result=0.764 (P:1.12, N:1.47, Delta=0.354)
    08:53.5] Approximation Found: 0.3210 (R=1.651, Delta=0.050)
     

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  12. camasaki

    camasaki

    Messages:
    16
    So, after 8min of calibration the wheel seems to be alive. I can send it FFB commands from the Control Panel but they're weak as ... even though they're set to 100%.

    Motor is warm, not hot to the touch.
     
  13. asteroulis

    asteroulis

    Messages:
    111
    Location:
    Greece
    Motor needs replacement
     
  14. camasaki

    camasaki

    Messages:
    16
    Explain your reasoning.
     
  15. camasaki

    camasaki

    Messages:
    16
    The motor turns - it's just weak. Do you think it's the shaft coming loose?
     
  16. asteroulis

    asteroulis

    Messages:
    111
    Location:
    Greece
    It is loose already. If you have the skill to fix it you can try. But I would suggest to simply replace the motor.

    Here is an ebay link
     
  17. ANDRITSOULAS

    ANDRITSOULAS

    Messages:
    126
    Location:
    Greece
    I have a broken t300 which i bought for parts back when i was in TM ecosystem. I am thinking to repair it just for fun and for using it as a back up wheel. It turns on but it can not calibrate itself at all. It keeps turning to stops full power and never stops.
    I asked TM to send me parts but they only allow me to send it for repair. The cost is way to high cause shipping.
    I saw asteroulis link with the motor and i am thinking could my issue be a motor failure or a pcb failure?
    What do you think?
     
  18. camasaki

    camasaki

    Messages:
    16
    Does it turn back and forth constantly?

    Have you tried the calibration software?
     
  19. camasaki

    camasaki

    Messages:
    16
    OK, I replaced the motor as suggested by @asteroulis and things are looking much better.
    In particular, all the force feedback actions from the control panel are executed with power!

    Thanks very much asteroulis!