21 pin sound decoder Class 101 DMU

Post Reply
User avatar
dtb
Posts: 159
Joined: Thu Oct 04, 2018 10:07 pm
Location: 9C but now near to 9D
Contact:

21 pin sound decoder Class 101 DMU

#1

Post by dtb » Thu Jun 04, 2020 3:58 pm

This arrived earlier and I wanted to install today and the chap isn't available today to ask the question.

I need to know what the extra orange, black & white wires will be for.

I know white is for lights, black is for the left pick up / power and orange for the motor +, do I have to solder them in?
I had assumed this decoder would have been the same plug and play as a Class 68 sound decoder I recently fitted which didn't have extra wires.

Thank you

Image
Image

User avatar
Brian
Site Admin
Posts: 1318
Joined: Thu Oct 04, 2018 3:49 pm
Location: SE Kent
Contact:

Re: 21 pin sound decoder Class 101 DMU

#2

Post by Brian » Thu Jun 04, 2020 4:43 pm

Without checking I suspect they are for a Stay Alive capacitor? Or possibly a Hall sensor? What make is the decoder?
Motor power, lighting control and any wheel pick up is all via the 21 pin and not wires.
Image << Click the Icon to go to my website

brian1951
Site Admin
Posts: 857
Joined: Thu Oct 04, 2018 5:52 pm
Location: Welsh Borders.
Contact:

Re: 21 pin sound decoder Class 101 DMU

#3

Post by brian1951 » Thu Jun 04, 2020 4:43 pm

What make is the decoder ? did it not come with a instruction booklet ?

User avatar
Rog (RJ)
Site Admin
Posts: 580
Joined: Thu Oct 04, 2018 5:49 pm
Location: South Nottingham
Contact:

Re: 21 pin sound decoder Class 101 DMU

#4

Post by Rog (RJ) » Thu Jun 04, 2020 4:46 pm

I have a feeling those extra wires are for a stay alive capacitor. I believe some versions of Loksounds (i think it's Loksounds) need a special stay alive with two capacitors. Don't connect the wires to anything until you have the right wiring instructions.

User avatar
dtb
Posts: 159
Joined: Thu Oct 04, 2018 10:07 pm
Location: 9C but now near to 9D
Contact:

Re: 21 pin sound decoder Class 101 DMU

#5

Post by dtb » Thu Jun 04, 2020 5:15 pm

Sorry yes should have mentioned that

Loksound v5
I downloaded the manual and they mention wires for a power pack or otherwise known as stay alive.
Image

User avatar
dtb
Posts: 159
Joined: Thu Oct 04, 2018 10:07 pm
Location: 9C but now near to 9D
Contact:

Re: 21 pin sound decoder Class 101 DMU

#6

Post by dtb » Thu Jun 04, 2020 6:24 pm

I think this gives me the answer, just confused me as the colour of wire used are normal for regular connections.

Image

Image
Image

User avatar
Walkingthedog
Posts: 2452
Joined: Thu Oct 04, 2018 5:51 pm
Location: HAZLEMERE, BUCKS.
Contact:

Re: 21 pin sound decoder Class 101 DMU

#7

Post by Walkingthedog » Thu Jun 04, 2020 6:59 pm

If all else fails etc...........
Nurse, the screens!

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest