THRUSTMASTER T300 HELP!

[LDF_TINCHO]

Hello, my problem with the thrustmaster is that a button on the PCB has been electronically pressed, it is button 1 corresponding to the left gear.

In the photo of the board there are two jst connectors that correspond to the gear buttons, one of them, (left pad conector,), shows continuity, I don't know where the problem is.
How could I repair or cancel this order?

 

[Harald Kapp]

Show us a closer look. Show us also the underside of the PCB. Look for stray solder that may have created a short circuit. Look on top and bottom of the PCB. Sometimes pearls of solder from the manufacturing process that have not been cleaned away may stick between traces or solder points.
The issue may, however, be an internal one of the controller circuit. In that case you'd be lost.

 

[anylap23]

Hi!!
Did you find something about?.

I have the same issue but R3 button, where I soldered a parallel switch for hand brake.
First thing I did was unplug the L3/R3 pcb. Same result......R3 stuck.
I had try with a parallel switch pressing to see if it get unlocked, but doesn´t work.
Also tried to follow the circuit with a multimeter, but i get lose in some point without detecting any shortcircuit because i have no schematic diagram of te motherboard.
I think that issue comes from the processor, but i´m not sure.

 

[LDF_TINCHO]

In my case I solved it by looking for a bit of current in the connector that goes to the steering wheel I think, and inject the positive in the pin of the button that is stuck, on the PCB, the voltage that must be 2.6 I think

 

[LDF_TINCHO]

the voltage in de pin is 3,2v, i put a resistor for down to 2,6v

 

[anylap23]

Ok, thank you.
I will try in the next days

 

[73's de Edd]

thinking along the same lines as . . . . . LDF_TINCHO . . . . ., go to the other paddle / gear that has no problem and compare its voltage with out switch activation and then with it activated .
The do the same test with your PROBLEM unit, but expecting no change there . . . if so, then unplug its two pin connector to simulate a paddle/gear DE ACTIVATION. Then . . . . . are the pairs of voltages the same, between units ? That differentiates between a circuit problem and the actual switch itself . . .or somewhere in its routing.

 

[redzoome]

Hello guys.
I understand that is very old thread, but, i have same problem, like anylap23, with stuck L3 button, after I soldered a parallel switch for hand brake. Nothing visible issues, some kind of programming or processor error.
Glad to any help)

 

[Harald Kapp]

If the button is stuck in the "closed" position, a parallel switch will not help as it can not open the circuit that is closed by the other button. If this is the case, you need to remove the stuck button.

 

[redzoome]

If the button is stuck in the "closed" position, a parallel switch will not help as it can not open the circuit that is closed by the other button. If this is the case, you need to remove the stuck button.

Circle is not closed by other button. Citrcle closed in some kind of program or processor level. I did was unplug the L3/R3 pcb. Same result......L3 stuck.

 

[Westheightstp]

Hi!!
Did you find something about?.

I have the same issue but R3 button, where I soldered a parallel switch for hand brake.
First thing I did was unplug the L3/R3 pcb. Same result......R3 stuck.
I had try with a parallel switch pressing to see if it get unlocked, but doesn´t work.
Also tried to follow the circuit with a multimeter, but i get lose in some point without detecting any shortcircuit because i have no schematic diagram of te motherboard.
I think that issue comes from the processor, but i´m not sure.

Hey mate i know this post is old but did you manage to fix the issue? I did the same with mine. Soldered in wires in the correct spots and plugged back in and the R3 registers as ON even with the R3/L3 pcb plug disconnected

 

[Westheightstp]

Circle is not closed by other button. Citrcle closed in some kind of program or processor level. I did was unplug the L3/R3 pcb. Same result......L3 stuck.

Hey bro did you manage to find a solution?