iFixit - Answers With Device "LEGO"

LEGO: Lego Duplo Cargo Train -10875 | No Sound

Wed, 10 Dec 2025 04:28:15 -0700

I bought a used Lego Duplo Cargo Train -10875 that works, it moves and recognizes the action bricks, but doesn't make sound, neither stand alone, neither with the app.

I already changed the batteries twice and no sound.

I already opened the train to check the contacts and it all looks brand new.

Lego Minifig: How to replace LED torch lights in the feet of Lego Minifigures

Thu, 30 Oct 2025 21:46:18 -0700

I have an old blue Lego man minifigure with torch LED lights in the feet.

Bought in 2013.

The torch has stopped working.

I have replaced the batteries but the torch still does not work.

Q. How to replace (or repair) the LED lights in the minifigure's feet?

RCX 1.0: Cannot get the RCX 1.0 to respond to IR remote control

Sun, 17 Mar 2019 12:29:10 -0700

Hi,

I have just got my son’s old RCX 1.0 out for my grandson and purchased a Lego (9738) IR remote control so he can control the RCX unit.

The RCX unit works OK and all the built in programs work OK but it does not respond to the remote control commands at all.

Firstly can somebody confirm wether the RCX 1.0 does work with the IR remote control and if so any idea how to get it working again?

RCX 1.0: power requirement for an RCX controller

Tue, 26 Dec 2017 11:53:28 -0700

what is the maximum current required by an RCX1.0