LGB 2-4-0

Cooky,
(Sorry, not sure of your given name)
People are trying to be helpful.
I am of the opinion the broken component is the audio output transistor. - You say everything else works?

So far, I have not seen makers marks on the pcb, and you have been asked about markings on the broken component.
From the picture we have, it does look as if (at least) the remains of the labelling on the component is present.

A close-up of this, in the best focus you can manage, would be very helpful.
We can then make a stab at identifying the component, and give you an idea of the cost of a replacement.

Annotated circuit diagrams, for any of the LGB (or Massoth) units, are not in the public domain, so we have to go by comparison, and what we can see.

Also, some of us are still working, or looking after family members (or even just have a life).


If you can provide a decent photo, I will continue to offer help and advice.

PhilP
 
Choppercook said:
NO but I will now, I joined this forum to get help and advice not to bost I have something the next man not have , I know nothing. please help ...
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From what I can see, lots of posters are trying to help you with your problem and have posted advice on what to look for.

Precisely why I and many others are on this forum. To help others and to get advice. Nobody is here to boast.

Please don't get frustrated! I'm sure others will be here to help with your problem if you are patient....
 
Thank you , I will try and get the best photo of the part now to send , but as I say I know nothing about garden railway and need help and if it cost then I will pay
 
Phil P
 

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Choppercook said:
Phil P
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The third picture you posted, with you holding the broken part in your fingers.

Can you take photos of all sides please, the side with the dome head screw is what I think we need to see.

I concur with PhilP. You have broken a transistor. That is the small black plastic part screwed to the large metal part which is a heatsink.

We need a good in focus photo of the writing on the black plastic part before we can advise any further....
 
Choppercook said:
I think I can just see a marking on the little black on the aluminium plat, ( Y/ W035 MOROCCO BD711
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That's more like it..
It is that information we need..

I will have a look a little later, off out very soon, to see if I have an equivalent to this..

PhilP
 
I have said this once, but I will say it again, look at The Shed The Shed picture post #47 which appears to show the detached part attached to a similar board.
 
If we could have a better photo in focus of this....
 

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BD711 TRANSISTOR SILICON NPN / 100V / 12A / 75W TRANSISTOR CASE: TO-220

Obsolete part, ebay to the rescue.

BD711.jpg
 
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Choppercook said:
well it looks like you find the part I need , just need someone to fit it
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If you wait for PhilP to get back to you, I'm sure he'll be able to assist.

Are you ordering the part from Ebay yourself....
 
Gizzy said:
If you wait for PhilP to get back to you, I'm sure he'll be able to assist.

Are you ordering the part from Ebay yourself....
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I can add the part to an order I am about to send in, if liked?

Will take this to Personal Messaging, to exchange contact details..

If it is just a case of swapping the part, the repair should be relatively easy..
If 'something else' is also faulty, then it might be a different matter.
Certainly worth the cost of a transistor and a bit of postage to find out..

As before, we are at the hospital everyday, but will update the thread with results.

PhilP.
 
wonderful , looks like a lot of different ones .I will order the BDW93C NPN Darlington Power Transistor 100V 12A 80W TO-220 , and we make contact when I have it
 

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Has anyone installed a decoder in one of these. I just bought a blunami and would like to run it off a battery in the tender but I have never installed a decoder in an LGB engine and have heard it is difficult to isolate the motor from the track pickups.
 
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