richard carr
Western Thunderer
I have been busy recently installing decoders in Heljan 40s here is how I did it.
I am using a Loksound V4XL decoder.
The first thing you have to do is get the body off the chassis. Start by prising off the bogie and put them to one side. This time Heljan have been really helpful by hiding the screws that attach the body to the chassis, underneath what I think are some cross beams on the real thing these need t be prised out as well to reveal the screws underneath.
In the above image you can see the screws and the cross beam bits in the photo above you can just about make out the hole where the screws came from and the holes where the cross beam bits fit over them.
Once you have unscrewed the body it just slides off.
With the body and the bogies removed this is what it looks like.
This is the board from Heljan once its been removed. Again they are being really helpful by not telling you exactly what each wire does, you need to work it out for yourself.
So from the top of the board we have as follows. The front of the chassis is on the right in the photo above.
Slot 1
Red and black wires. The black wires are are for the front headlights and the rear tail lights. You can identify the front head lights as they split into 2 wires further down the chassis, the rear lights remain as one.
Front light wires go in slot FL on the decoder, the rear lights go in AUX 1 on the decoder.
The red wires are common and go in any of the U+ slots on the decoder (there are 3 slots marker U+).
Slot 2
There are 2 black wires, the rear head lights and the front tail lights. Again the rear head lights head to the back of the chassis and split into 2 wires. The rear head lights go into slot RL on the decoder and the front tail lights go to AUX 2
Slot 3
There are 2 red wires these are commons and go to any of the U+ slots on the decoder
Slot 4
This is a track supply and goes to TrkL left on the decoder.
Slot 5
This is the other track supply and goes to TrkR right on the decoder.
Slots 6-9
These are the motor feeds.
Slot 6 is motor left
Slot 7 motor right
Slot 8 motor right
slot 9 motor left
These go to Mot+ and Mot-
Make sure you get them the right way round for each motor so they both run in the same direction !
I am using a Loksound V4XL decoder.
The first thing you have to do is get the body off the chassis. Start by prising off the bogie and put them to one side. This time Heljan have been really helpful by hiding the screws that attach the body to the chassis, underneath what I think are some cross beams on the real thing these need t be prised out as well to reveal the screws underneath.
In the above image you can see the screws and the cross beam bits in the photo above you can just about make out the hole where the screws came from and the holes where the cross beam bits fit over them.
Once you have unscrewed the body it just slides off.
With the body and the bogies removed this is what it looks like.
This is the board from Heljan once its been removed. Again they are being really helpful by not telling you exactly what each wire does, you need to work it out for yourself.
So from the top of the board we have as follows. The front of the chassis is on the right in the photo above.
Slot 1
Red and black wires. The black wires are are for the front headlights and the rear tail lights. You can identify the front head lights as they split into 2 wires further down the chassis, the rear lights remain as one.
Front light wires go in slot FL on the decoder, the rear lights go in AUX 1 on the decoder.
The red wires are common and go in any of the U+ slots on the decoder (there are 3 slots marker U+).
Slot 2
There are 2 black wires, the rear head lights and the front tail lights. Again the rear head lights head to the back of the chassis and split into 2 wires. The rear head lights go into slot RL on the decoder and the front tail lights go to AUX 2
Slot 3
There are 2 red wires these are commons and go to any of the U+ slots on the decoder
Slot 4
This is a track supply and goes to TrkL left on the decoder.
Slot 5
This is the other track supply and goes to TrkR right on the decoder.
Slots 6-9
These are the motor feeds.
Slot 6 is motor left
Slot 7 motor right
Slot 8 motor right
slot 9 motor left
These go to Mot+ and Mot-
Make sure you get them the right way round for each motor so they both run in the same direction !
