Search found 80 matches

by NedFlanders
Wed Dec 19, 2018 2:09 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

If you are using two speakers on one audio output, then if they are an identical pair, wire alike, if not identical look for any indication like coloured insulators on the tags... Sorry Bigmet, it was a general question in case there was a chance I could have wired the sugarcube speaker ( only one ...
by NedFlanders
Wed Dec 19, 2018 12:40 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

As an aside - is there a +/- side to speaker connectors? I didn't see any in the instructions/ online videos and a quick search here hasn't shown anything to me. From previous experience with HiFi speakers I understood that if you had two speakers it was a matter of making sure both speakers were co...
by NedFlanders
Tue Dec 18, 2018 4:58 pm
Forum: Real World Railways
Topic: Every now and then - a great Railway YouTube channel - 1950's home cine with narration
Replies: 1
Views: 97

Every now and then - a great Railway YouTube channel - 1950's home cine with narration

Every now and then YouTube comes up with a brilliant channel suggestion. I love these videos, they are Colour Cine Film from the 1950's onwards with a retrospective narration added. I love the look and content of these videos from all over back in the day. Well worth a look in my estimation - now wh...
by NedFlanders
Tue Dec 18, 2018 1:01 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

You can test the 8ohm speaker using your multimeter. Don't expect to measure 8ohms, that's it's impedance not the DC resistance, but put the meter onto a low ohms range touch the speaker leads with the meter probes, you should get a low ohms value and a slight tick from the speaker each time you ma...
by NedFlanders
Mon Dec 17, 2018 10:47 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

I was just about to say there will be a beep across the orange and grey with a motor in circuit for the reasons provided above. Rob Thanks Bigmet and Rob, I'll have to go back to basics on electrickery for that one - I suspect its along the lines of "for a filament bulb to work there has to be...
by NedFlanders
Fri Dec 14, 2018 1:34 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

I think I will remove the socket and put in another one and see if I have the same result with the unknown beep between grey and orange socket. I have a new commissioning test as a result of this escapade. not being hungry for lunch just yet, I idly replaced the socket with one that tested fine - i...
by NedFlanders
Fri Dec 14, 2018 1:05 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

Do a con test twixt each socket hole (grey and orange) to each motor brush. Grey to brush 1 and 2, ditto orange. You should only get con between the direct connections and not between the crossed connections. May or may not give us a clue. Any way that either of those wires is shorting to chassis. ...
by NedFlanders
Thu Dec 13, 2018 4:31 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

...soldered in an 8-pin socket... I would be looking there first. Poor socket, solder bridge, pin touching metal, wrong connection, etc, especially with a ringfield. Rob Ok, this one is hurting my head - the orange and grey wires go from the socket to the Motor contacts. Test at the Motor contacts ...
by NedFlanders
Tue Dec 11, 2018 8:59 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

I too lost a decoder because I wrapped it in tape, ran well for about 15 mins then stopped and I got error message. Now I if I have to protect the chip I cover what it might touch instead of the chip. Mine was misbehaving straightaway which initially suggested to me that it was either mildly knacke...
by NedFlanders
Tue Dec 11, 2018 8:56 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

Also ignore the instructions about wrapping the decoder in tape, they get hot and need air, I once used a bit of loose fitting un-shrunk heat shrink and after 5 minutes running it had started to shrink, it got that hot. Paul For the lenz one I hadn't wrapped it, because the hornby one said it was o...
by NedFlanders
Tue Dec 11, 2018 8:55 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

...soldered in an 8-pin socket... I would be looking there first. Poor socket, solder bridge, pin touching metal, wrong connection, etc, especially with a ringfield. Rob I will check the continuity there too. I have already used on of the sockets (from a pack, and they have have the wires already a...
by NedFlanders
Tue Dec 11, 2018 8:46 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

Hi Two things. 1) As its a tender drive you should have the loco connected to the tender when programming and running as the loco provides a path to one sides rails. 2). did you carry out a continuity test between the left brush strip and all tender wheels and any metal of the tender chassis. There...
by NedFlanders
Tue Dec 11, 2018 8:39 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Re: Blown TTS Decoder - what did I do wrong?

Do TTS chips require an 8ohm speaker? If you powered it down whilst the tape was still melting there's a chance the hot chip will have survived. I'd try reconnecting the original speaker just to see if anything works. Yes, 8ohms is the requirement for the speaker. I'll give the original speaker a g...
by NedFlanders
Tue Dec 11, 2018 3:33 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 709

Blown TTS Decoder - what did I do wrong?

Hi all, being laid up at the moment I decided to finally fit the A3 TTS decoder to Flying Scotsman. I had previously discovered that the speaker would not fit in the loco so I had picked up a sugar cube 8ohm speaker. Before https://farm5.staticflickr.com/4826/45550925694_cb16413688_o.jpg I look the ...
by NedFlanders
Sat Dec 08, 2018 5:43 am
Forum: Track/Layout Design
Topic: Peco 3-way Point
Replies: 5
Views: 217

Re: Peco 3-way Point

Hi there, I used a streamline medium (I think) point attached to either diverging route to give me the template for the curve back to parallel running . I marked the route on to the baseboard and then laid it with flexitrack. This post has a photo of the unballasted result https://www.newrailwaymode...

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