Got my 2-6-6-2 today and ran it in DC mode with 12 loaded 55 ton coal hoppers
Runs well and the sound is great
It came with a small printed circuit chip
I can't find any info ( at least that I can see ) on what it is for
Any help appreciated
If it has sound like you say, the "chip" is really a SoundTraxx Tsunami decoder with "chips", called IC's or Integrated Circuits.
There are no circuit diagrams for these decoders. Manufacturers do not want to give away details of their products. Don't even try asking the company.
If you are good with a magnifier, ohm meter and 'Scope you "might" figure out a little of the decoder.
Rich
To add to what Rich has said, even if you did figure out the circuit and built a duplicate using all the many "chips" that go into a decoder, your circuit still would not work because you would not have any programming in the microprocessor. The chances of the company giving away that information is exactly the sum of zero, none, nada and zilch.
Jim
I should have added that the chip is not installed but comes loose and looking at it closely it may be some kind of connector ?
I don't know what it is for since the engine runs without it in DC mode and has sound
Here is a pic
(http://bandb3536.com/chip.jpg)
I don't see any chips on this printed circuit board, although maybe there are some hidden on the other side. What I do see looks a lot like a 21 pin DCC socket as used in Europe. These were developed to accommodate more functions than just the head and rear lights of the NMRA 8 pin sockets.
The NMRA was studying a proposal for a 21 pin socket but I think that study is presently in limbo. I am not sure if it was a matter that while the NMRA argued details, the European manufacturers went ahead with their own standards or whether the NMRA has finally realized that the N in their initials stands to "National," not "International" and while their standards are popular in the US, the other 97% of the world really doesn't care.
Even if this board is a connector board for a 21 pin decoder, the question still remains about what it was doing packed with your 2-6-6-2. Maybe somewhere in Europe someone is asking why there is a board with an 8 pin connector packed with his new locomotive.
Jim
Could it be like with the DCC Locomotives that it is a conversion plug for DC operators?
Just a guess.
My others had small 3 pin jumpers and the showed how to install them
Quote from: uncbob on May 23, 2010, 08:35:21 AM
I should have added that the chip is not installed but comes loose and looking at it closely it may be some kind of connector ?
I don't know what it is for since the engine runs without it in DC mode and has sound
Here is a pic
(http://bandb3536.com/chip.jpg)
Ok, the question that begs asking, did you get this from a private seller?
Since we are in the HO forums, you must have a HO 2-6-6-2.
I have to assume this loco is a Bachmann because your first post is very sketchy. More details.
Photo of the other side of the PC board.
What kind of paper work with the loco?
I know of nothing like this from Bachmann, USA.
Just a guess, the loco might have a 21 pin decoder and this PC board, not a chip, could be the DC adapter from what little I see. I see two diodes and pads that "might" be for SMT resistors.
If you are brave, open the tender and take a picture of the decoder for us.
Rich
I think that was the chip that James Bond was looking for. :o :o :o :o :o :o
I found this in the Product reference though it does not say sound. HO C&O 2-6-6-2 ARTICULATED
http://www.bachmanntrains.com/home-usa/dwg/dwgs/H848Y-IS001.pdf
I see what looks like a 21 pin connector near the speaker. My new PCM with LokSound looks similar with the 21 pin connector. Bachmann has usually been pretty lame when it comes to documentation.
The diagram that comes with your loco should show something like this.
Rich
The photo below is the Bachmann 21 pin decoder, part number 36-554, as sold in the UK. Note the socket - it looks like it would mate with the plug on uncbob's pc board. That board is looking more and more like an adapter plug which can be hardwired to the locomotive and plugged into the decoder plugged. In that case, the four large solder points opposite the plug are probably the pickup and motor connections.
(http://members.shaw.ca/sask.rail/B-mann-21-pin-decoder.jpg)
Jim
Since he says he has sound, I am assuming the Tsunami comes like this. Yeah, I know about "assuming". The Tsunami is the only factory installed sound for Bachmann the last I heard.
Rich
Rich, I understand that Bachmann's 21 pin European motion only decoder pictured above is made by ESU and that Bachmann is also using their LokSound decoders.
Jiim
It is a Bachmann from a large Internet store H B Klein
New in Box
Item says D3800#PCB01 REV C
08/05/16
Quote from: Jim Banner on May 23, 2010, 02:09:11 PM
Rich, I understand that Bachmann's 21 pin European motion only decoder pictured above is made by ESU and that Bachmann is also using their LokSound decoders.
Jiim
I have to agree with that. I thought he was in the USA where Bachmann uses the Tsunami or things are changing faster than I thought.
Below is a photo of the 21 pin LokSound in a diesel I recently purchased.
(http://i98.photobucket.com/albums/l267/richg1998/Broadway/Decoder2.jpg)
Rich
Where is Mr Bachmann he should know
I guess he is off Sundays
Quote from: uncbob on May 23, 2010, 02:18:50 PM
It is a Bachmann from a large Internet store H B Klein
New in Box
Item says D3800#PCB01 REV C
08/05/16
Again, that is certainly news to me. Last I saw was Bachmann with the factory installed Tsunami.
Right now I cannot recall seeing any photos of Bachmann with factory installedTsunami sound. The diagrams do not show certain details.
Rich
Does anyone know if the Bachmann 2-6-6-2 has simple engines or compound ones? Or to put it another way, are the front cylinders the same size as the rear ones?
Compound engines use the steam twice, first at high pressure the smaller front cylinders, then at lower pressure in the larger rear ones. The two engines tend to synchronize themselves unless one or both slip. Tsunami makes a steam decoder which mimics this. It gives four chuffs per revolution except when an engine slips. With an engine slipping, the engines go out of sync and you get more chuffs and at a higher rate. But I don't think there is a Tsunami decoder for two simple, unsynchronized engines yet. This has me wondering if perhaps Bachmann had to turn to LokSound for the right sound - eight chuffs per revolution slowly drifting in and out of sync. Anyone who has ever heard a simple Mallet in real life would not/could not accept anything less in a decoder.
Jim
He said in another forum the instruction manual that came with the loco says Tsunami.
Rich
Jim-
The Bachmann 2-6-6-2 was a Mallet, ergo compound.
--D
Upon actually looking at both , the older version is a simpled engine (equal sized cylinders)
while the newer version with the VC tender is a compound (Mallet ) with the larger slide valve cylinders.
Quote from: Doneldon on May 24, 2010, 01:20:34 AM
JThe Bachmann 2-6-6-2 was a Mallet, ergo compound.
Strictly speaking, Mallets were compounds. But like so many terms that get corrupted,
Mallet tends to be applied to any articulated locomotive, compound or simple. It is rather like calling a
locomotive an
engine. We know it is wrong but we still do it.
Do we know if uncbob's locomotive is simple or compound?
Jim
Kim-
I'm not so certain I agree. All artics are not Mallets. Just because some people mistakenly call all artics Mallets doesn't change that fact and it doesn't mean we should buy into the corrupted usage, either.
It's like on these Bachmann boards. "There," "Their," and "They're" are used incorrectly all of the time -- like daily -- but it doesn't mean that folks who know how to use those words correctly should begin to use them randomly.
Looks like a slide in the front and regular piston in the rear
Here she is in action
Short Version
http://bandb3536.com/video/2662s.AVI (http://bandb3536.com/video/2662s.AVI)
Long boring version
http://bandb3536.com/video/2662.AVI (http://bandb3536.com/video/2662.AVI)
I always wondered, Is it a switch, or is it a turnout? Only your Ferroequinologist knows for sure.
I think the turnout is the actual piece of track whereas the switch is the "switch" used to throw the turnouts.
You guys got SOUND??? Mine dont say anything about sound. It's a C&O 2-6-6-2 Articulated Loco w/Vandy tender (part # 82625). I've got a spare Tsunmi decoder (TSU-1000) for Medium Steam to put in it. Is there a cam input for the decoder?
Roger
Links from a Google search for C&O H-4 2-6-6-2
http://tinyurl.com/2dnsq75
Rich
Quote from: Doneldon on May 25, 2010, 01:44:08 AM
All artics (sic) are not Mallets. Just because some people mistakenly call all artics (sic) Mallets doesn't change that fact and it doesn't mean we should buy into the corrupted usage, either.
Perhaps I should have been a little more precise. I have never heard anyone call a Shay or a Bayer-Garret or a double Farlie a Mallet, even though they are articulated. I have heard a Meyer referred to as a Mallet, even though the front engine is behind its drivers and both engines swivel but I suspect in this case it was the similarity of names that led to the mistake. However, considering only those articulated locomotives where only the front engine swivels and where both engines have the cylinders in front of their drivers, I have heard both compound and simple versions referred to as Mallets, even by men who drove them. Perhaps this arose because a number of these locomotives were originally built as true Mallets and later converted from compound to simple. But to the men that drove them, once a Mallet, always a Mallet. I suppose the best known example of these converted Mallets were the backward running cab forwards of the Southern Pacific.
Incidentally, I have never heard a railroader use the term
artic in reference to a locomotive, only the homophone
arctic in reference to that cold place up north. I am guessing it is a corruption of
articulated because I have not been able to locate a credible reference to it being a contraction of it.
Jim
Jim-
I'm embarrassed. So embarrassed. While I have heard railroaders and model railroaders use the term "artic," (I grew up in a railroad family) I must confess that my using the term didn't come from that. It stems from my having spent several years on a public advisory committee for the local transportation system where everyone called the articulated buses, yes, buses, "artics." Oh, the woe. I'll never make the mintake again.
--D
Does your 2-6-6-2 loco have a CAM input for synchronization of chuffs? If so then my C&O non-sound loco can be wired up properly with a sound decoder with cam input.
Sounds like it does but without taking the engine shell off I don't know
With a bit of fine tuning, the Tsunami decoders can track piston speed incredibly well even without a cam. The BEMF circuitry matches actual speed to speed command and thus to chuff rate very well. With BEMF there is little change in speed with load or temperature so once adjusted, the speed stays in sync with the sound. There is no applying throttle and having the engine chuffing away while the locomotive is standing still or the locomotive reaching 20 miles per hour before the cuff starts. When I first saw it, I could not believe the locomotive did not have a chuff cam.
With the after market Tsunami, a chuff cam is an option and they are not too hard to make. So you have the choice - fine tune the BEMF or add a chuff cam. In either event, you will need a DCC system that can program the CV's.
Jim