Castle class dcc fitted loco. want to put in none hornby decoder . What are the red things on motor

[GrahamWass]

As the title sugests I am wanting to replace the origional early hornby decoder with a sound decoder but looking at the motor it has what apoears to be resistors or the like wired into it . they are covered in a red sleeve so dificult to see what they

are. First what are they Second should I remove them before fitting none hornby decoder. Third will I get a slapped wrist for not fitting Hornby decoder. But I want sound
Thanks Graham

[peterz]

GrahamWass said:

As the title sugests I am wanting to replace the origional early hornby decoder with a sound decoder but looking at the motor it has what apoears to be resistors or the like wired into it . they are covered in a red sleeve

so dificult to see what they are. First what are they Second should I remove them before fitting none hornby decoder. Third will I get a slapped wrist for not fitting Hornby decoder. But I want sound
Thanks Graham

[peterz]

GrahamWass said:

As the title sugests I am wanting to replace the origional early hornby decoder with a sound decoder but looking at the motor it has what apoears to be resistors or the like wired into it . they are covered in a red sleeve

so dificult to see what they are. First what are they Second should I remove them before fitting none hornby decoder. Third will I get a slapped wrist for not fitting Hornby decoder. But I want sound
Thanks Graham

Presumably the fitted decoder

is in a socket, in which case it depends whether its 21 pin or 8 pin.
In either case the sound decoder will simply be a direct replacement with no other alterations neccessary.
if its 8 pin there will be 2 extra wires for the speaker
In the case of

21 pin there will be no extra wires, but in modern locos the pcb usally has terminals for speaker.
hope this helps.

[GrahamWass]

peterz said:

Presumably the fitted decoder is in a socket, in which case it depends whether its 21 pin or 8 pin.
In either case the sound decoder will simply be a direct replacement with no other alterations neccessary.
if its 8 pin

there will be 2 extra wires for the speaker
In the case of 21 pin there will be no extra wires, but in modern locos the pcb usally has terminals for speaker.
hope this helps.

Yes Many thanks
Graham

[GrahamWass]

Yes Many thanks Graham