Open Panzer
Open Panzer Help & Info => Open Panzer Help => Topic started by: FuzzyJack on January 18, 2025, 06:54:39 AM
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Hi all,
Wiring up the TCB to the Henglong Sherman and I've made a couple of adapters so I can connect the existing Henglong plugs to the TCB, including one to allow the two XH connectors from the BB unit motor and trigger switch to connect to the 3 pin RECOIL connector on the PCB.
Basically it just puts the two black wires to pin 1 and then wires the red from the motor to pin 2 and the red from the trigger switch to pin 3.
When operating the cannon the motor seems to try at least to spin and makes a horrific noise doing it but the mechanism doesn't fire so it never hits the trigger switch. After a while it stops.
I've tried with an old spare BB unit as well and it did the same thing. Am I missing something?
Obviously the Airsoft rewiring instructions are for the Taigen unit but I assumed the henglong would be the same as it's just a motor and a microswitch.
Cheers,
Chris.
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Hi Chris, have you tried swapping the motor wires? I haven't tested one of these units, but I wouldn't be surprised at all if Heng Long decided to use a red wire for negative...
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That is entirely possible... I traced the wires through after I realised that the gearbox on the BB unit is one directional. Swapped the motor wires and yeah it works ok now. Doh!
Also I am going from the BB unit through the 360 slip ring so it's possible it got swapped over there as well. I just turned the XH connector on my adaptor round. :)
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Thanks for reporting back, I'm glad that's all it was!