Class 31 Lighting

[Tobes248]

Hey all

[Chrissaf]

Whilst you wait for a reply, perhaps you would spend a few minutes reviewing the TIPs in the TIP page link below:

.

TIP: As a newbie poster on the forum, just be aware that the 'Blue Button with the White Arrow' is not a 'Reply to this post' button. If you want to reply to any of the posts, scroll down and write your reply in the reply text box at the bottom of the page and click the Green 'Reply' button.

.

See also – further TIPs on how to get the best user experience from this forum.

https://www.hornby.com/uk-en/forum/tips-on-using-the-forum/

.

[96RAF]

Check the contact fingers in the body are making good contact with the three contact strips on the chassis by the buffers and check that none of the wires has become detached at either end of the main PCB. The PCB wires are usually held on by little jumper clips which can fall off.

/media/tinymce_upload/cfff6366c055b73a0d924cf65d00a734.jpg

[Tobes248]

Check the contact fingers in the body are making good contact with the three contact strips on the chassis by the buffers and check that none of the wires has become detached at either end of the main PCB. The PCB wires are usually held on by little jumper clips which can fall off.

I have double checked, but still don't seem to get any output. Do you happen to know which is the common feed out of the 3 on the buffer beam? Knowing me I could be trying the wrong one lol  😀

[96RAF]

I should know but can’t recall. I would guess the middle one is common and the outer ones are white and red. You could use a meter and check continuity back to the PCB which will be annotated.

[Tobes248]

I should know but can’t recall. I would guess the middle one is common and the outer ones are white and red. You could use a meter and check continuity back to the PCB which will be annotated.

That was the right order, found it after a lot of wheel cleaning and meter testing lol

I have managed to loose an LED in the process, don't suppose anybody has a spare Hornby X9576 part lying around do they? Impossible to get hold of now seemingly!  😀

[96RAF]

I did the same thing on a 56. The leds are in the body but the controlling resistors are on the PCB, so when I applied test voltage to the body the leds blew. Getting the desks out to access the leds was a real pig of a job, as they were also nil stock anywhere at the time, so it was a case of direct replacement with 0603 size SMD leds.

[ColinB]

It is probably a bit late now, what I have is a two leads one with a 1 kilo ohm resistor in it that I use for testing leds, it prevents you blowing them up. The other thing that is quite important, when I was fitting a sound decoder to my Bachmann loco, I loosely put the body on and could not get the lights to work. It wasn't until I had screwed it down that the lights started working, with the body on loosely, there was not enough tension in the brass fingers to make a good connection.