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[weimarjr]

Hi, I really like Tamiya and Heng Long's tanks, I hope to find a lot of information in this forum, I upgraded the old board of my panzer III, I put version 5.3, but the cannon sound and the launch of BBs does not work, can you help me, thanks.

[MrChef]

Welcome to the Forum.

Unfortunately I cant help you with your question. But, I'm sure someone more knowledgeable will help you soon.

Chef

[weimarjr]

Thanks

[Meter rat]

Hi and welcome to the forum.
You may get more responses to your question by posting in the electronics section, under Heng Long, where far more knowledgeable people will answer…..

[john1970]

have you changed the turret wiring as it is different on the 5.3 to earlier boards and needs a different 8 pin daughter board
one of these 8 wires in 9 out

[stephenmedlock]

I don't know if you got anywhere with this but I'm working on the same problem. The cannon sound and track recoil will work if the connector from the microswitch at the back of the BB unit is connected to the last two pins (at right hand end) of CN3.

The airsoft motor I still can't get to work, but part of the problem is that I don't have instructions to fire the main gun!

Steve.