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1  Discussion Boards / Large / Re: Headlight on: September 01, 2018, 07:45:17 PM
Couple of quick questions.

1) what do you have in the socket?

2) what is the position of the switches behind the smokebox door.


2  Discussion Boards / Large / Re: Installing a Soundtraxx Tsunami 2 4400 DC sound card in a K 27 and a C19 on: August 15, 2018, 06:09:12 PM
DCC  Decoder Common + is a DC plus voltage about 1.5 colts less than the DCC track voltage.  Connect this to Locomotive +

The Train Bus connections on the socket are for future expansion.  They are not currently used by the Bachmann locomotives.

Hope that helps

3  Discussion Boards / Large / Re: Installing a Soundtraxx Tsunami 2 4400 DC sound card in a K 27 and a C19 on: August 12, 2018, 07:14:36 PM
Plug an play products are the easiest to install in locomotives with a socket.  Just plug them in.

To use any wired sound decoder you need a minimum of 8 wires to connect between the socket in the locomotive (tender)

1) the two track wires

2) the two motor wires

3) the decoders + and - must be connected to the sockets + and -

4) the two speaker wires.

Additional wires are needed for the chuff, and functions (lights/smoke/...) but these need not be connected till everything else is working.

Your Bachmann locomotive manual describes each wire (pin) and its function.

For a DCC decoder to work on DC the decoder must have CV29 set to work on DC.  Most all come from the factory this way.

Also make sure the switches in the locomotive are set for motor on and for track power.

I can not tell you how many times I have forgotten the last step.

4  Discussion Boards / Large / Re: Installing a Soundtraxx Tsunami 2 4400 DC sound card in a K 27 and a C19 on: August 10, 2018, 08:54:54 PM
When you are using the dummy plug with wires you must install the motor connections to some sort of motor control and provide a DC voltage source to the +- wires.   A DCC decoder or a RC control system have these connections

If you are using DC I would recommend using the DC board that was in the socket when you got the locomotive.

The pins are labeled and you can easily wire your sound card to this board.

Alternatively you can wire the your sound card directly to the track solder pads on the main board in the tender.

Hope that helps.

5  Discussion Boards / Large / Re: DCC sound upgrade on largescale 55 ton shay on: August 10, 2018, 08:48:20 PM
Fortunately only the sound version of the 3 truck shay has this issue.  In mine I use rectifiers to lower the input voltage to a level tat the sound level likes.

Hope that helps

6  Discussion Boards / Large / Re: classification lights on 2-8-2 on: July 26, 2018, 08:00:45 AM
You can replace the LEDs in the class lights with white LEDs.  Myself I got used to them as on most trains they are not on.

7  Discussion Boards / Large / Re: pulling Power on: June 10, 2018, 09:34:09 AM
On the SJR&P eastbound (uphill) is a near constant 2% to 2.5% for about 1200 ft.

We limit the K-27 to 9 loads (cars) plus caboose and the C-19 for 8 loads plus caboose. 

These ratings are conservative to ensure that the train will not bog down.  If additional cars need to be moved in a train extra locomotives are required.

8  Discussion Boards / Large / Re: G scale Climax locomotives on: June 09, 2018, 12:11:04 PM

Only one device can be placed in the socket at a time.

The jumper board with wires was designed to be used with a device that has motor control, and provided DC power. 

To get the lights to work you must provide DC power to the locomotive.  No DC voltage to the locomotive no lights

The simplest way to install the sierra board is to use the DC dummy board as described in a message I posted on June 4th at 8PM.  This requires you solder two wires to the DC jumper board. plus connect the speaker.

If you desire to use the board with wires then the installation is more complex as it requires you to figure out a way to supply DC voltage to the locomotive.


9  Discussion Boards / Large / Re: G scale Climax locomotives on: June 09, 2018, 11:28:18 AM
The board with wires is intended to be used with a DCC decoder or wireless device that has both motor and DC power.

If you look at the DC dummy board you will notice that there are several components on the board.

There are a series of rectifiers on the DC dummy board to let the lights light before the motor begins moving.

There is also a rectifier on the DC dummy board to provide DC voltage to the locomotive.

In your configuration there is no DC voltage being supplied to the locomotive so none of the features which require DC voltage (such as the lights) will work.

The solution for your installation is to put DC voltage back to the locomotive.

This can be achieved by either placing a rectifier from the track inputs to the locomotive + and - wires or hooking the locomotive +- to the sierra battery.  If connected to the battery you will use battery power when there is no DC track voltage on the rails.

Hope that helps

10  Discussion Boards / Large / Re: G scale Climax locomotives on: June 08, 2018, 11:09:24 AM
If you have the Bachmann DC dummy board in the socket in the locomotive and you have the light switch to DC then the lights should be on.  If not something is damaged.

You can check to ensure that you have DC voltage on J1 6 and 7.  Best to turn the motor off and put 12 v track voltage on the rails and check to see that you have around 11 volts on pins 6 and 7.

11  Discussion Boards / Large / Re: Has anyone installed the Bachmann dcc/sound board in the original version climax on: June 08, 2018, 08:49:40 AM
Yes I have installed both a DCC decoder and sound board in the 1st gen climax.  Unfortunately I have long ago misplaced any diagrams I had for this locomotive.

I would recommend any DCC board with screw terminals but would not recommend installing a plug and play sound board such as the one that comes with the 2nd gen climax.  The reason is that 1) you will need to find a socket for the plug and play board (the socket is not in the 1st gen climax) and 2) the lighting in the 2nd gen climax is designed for this purpose while the lighting in the 1st gen is not.

I might suggest you you look over Geroge's excellent pages on the 1st gen Climax as he has some excellent tips.

12  Discussion Boards / Large / Re: G scale Climax locomotives on: June 08, 2018, 08:18:08 AM
Since the Sierra sound board does not have the ability to have its lighting functions controlled by an external control there is no need to hook up the light functions to the sound board.

To control the lights refer to the light switches which are located under the tanks at the rear of the locomotive.   Your manual provides a description of these switches.

There are three positions labeled DC DCC and off.  A better description might be DC = Always On, DCC = switched by the device in the socket, Off = off.

Switch the light switches DC and they wil be on.

Hope this helps.

13  Discussion Boards / Large / Re: G scale Climax locomotives on: June 04, 2018, 08:01:04 PM

As pointed out by Yardmaster, the adapter board with wires is the solution to use if you are installing a DCC decoder a radio control interface or other motor/sound control system that does not have a plug and play interface.

When installing only a sound board  that does not have a plug and play interface you must attach wires to either the main board using the supplied solder pads or solder wires to the (DC) Dummy PC Board.

Your Climax manual provides a table which shows the purpose of each pin.

For example using a Sierra board refer to Fig 9 of the Sierra's manual which displays its master wiring diagram.

To start simply connect track power to pins 7 an 8 of the Sierra board.  Using the pin assignment diagram for the climax you connect these pins to J1 1-2 and J1  11-12.

You will also need to connect wires from the Sierra's speaker connection (9,10 ) to either the speaker in the climax directly or to pins J2 -1 and J2 - 3.

Its as simple as that.


14  Discussion Boards / Large / Re: Bachmann 1:20.3 Climax Keeps Shutting Down on: June 02, 2018, 10:35:33 AM
Two things which you might check out.

There are 4 plungers that carry power and motor from each truck.  I might suggest cleaning these and putting on some conducta lube on these contacts.

The second is to clean both the wheels and the space behind the wheels which make contact with the pickups.  We have found on our railroad that the sound boards in these locomotives are a little more sensitive to clean wheels the some of the other locomotives we have.

Hope that helps

15  Discussion Boards / Large / Re: G scale Climax locomotives on: June 01, 2018, 03:23:33 PM
In your Climax box is a dummy board with wires.

This allows easy installation of after market sound and motor control products.

If you are only installing a sound board and not a sound with motor control product it might be best to solder wires to the track wire terminals.  Not sure how many other wires are needed for the product you wish to install other then track and speaker wires.

Hope that helps


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